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typical application circuit appears at end of data sheet. ordering information appears at end of data sheet. for related parts and recommended products to use with this part, refer to www.maximintegrated.com/max15091.related . general description the max15091/MAX15091A ics are integrated solutions for hot-swap applications requiring the safe insertion and removal of circuit line cards from a live backplane. the devices integrate a hot-swap controller, 18m (typ) power mosfet, and an electronic circuit-breaker protection in a single package. the devices integrate an accurate current-sense circuitry and provide 170a/a of proportional output current. the devices are designed for protection of 2.7v to 18v supply voltages. these devices implement a foldback current limit during startup to control inrush current lowering di/dt and keep the mosfet operating under safe operating area (soa) con - ditions. after the startup cycle is complete, on-chip compar - ators provide variablespeed/bilevel? protection against short-circuit and overcurrent faults, and immunity against system noise and load transients. the load is disconnect - ed in the event of a fault condition. the devices are factory calibrated to deliver accurate overcurrent protection with 10% accuracy. during a fault condition, the max15091 latches off, while the MAX15091A enters autoretry mode. the devices feature an in to out short-circuit detection before startup. the devices provide a power-mosfet gate pin to program the slew rate during startup by add - ing an external capacitor. the devices have overvoltage/ undervoltage input pins that can detect an overvoltage/ undervoltage fault and disconnect the in from the out. additional features include internal overtemperature pro - tection, power-good output, and fault-indicator output. the max15091/MAX15091A are available in a 28-pin, 5mm x 5mm tqfn power package and are rated over the -40c to +85c extended temperature range. features 2.7v to 18v operating voltage range 18m internal power mosfet 9a (typ) load current capability analog current report output 10% circuit-breaker threshold accuracy programmable inrush current control under soa operation adjustable circuit-breaker current/current-limit threshold programmable slew-rate control variable-speed circuit-breaker response thermal protection overvoltage protection power-good and fault outputs latch-off or automatic retry options programmable undervoltage lockout in to out short-circuit detection applications blade servers server i/o cards raid systems disk drive power storage applications industrial applications variablespeed/bilevel is a trademark of maxim integrated products, inc. 19-6625; rev 1; 9/13 evaluation kit available max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output
v cc to gnd .......................................................... -0.3v to +20v in to gnd .............................................................. -0.3v to +20v out to gnd ............................................... -0.3v to (v in + 0.3v) gate to out .......................................................... -0.3v to +6v cdly, isense to gnd .......................... -0.3v to (v reg + 0.3v) en , cb, uv, ov to gnd ......................................... -0.3v to +6v reg to gnd ............................ -0.3v to min (+6v, (v cc + 0.3v)) pg, fault to gnd ............................................... -0.3v to +20v continuous power dissipation (t a = +70nc) tqfn (derate 34.5mw/ nc above +70nc)............... 2758.6mw operating temperature range ........................... -40nc to +85nc junction temperature ...................................................... +150nc storage temperature range ............................ -60nc to +150nc lead temperature (soldering, 10s) ................................. +300nc soldering temperature (reflow) ....................................... +260nc junction-to-ambient thermal resistance ( q ja ) .............. 29c/w junction-to-case thermal resistance ( q jc ) ..................... 2c/w (v in = v cc = 2.7v to 18v, t a = t j = -40c to +85c, unless otherwise noted. typical values are at v in = 12v, r cb = 25k, and t a = +25c.) (note 2) parameter symbol conditions min typ max units power supplies v cc operating range v cc 2.7 18 v in operating range v in 2.7 18 v v cc supply current i cc v in = 3v 0.4 0.65 ma in supply current i in r cb = 25k, no load 3.3 3.6 ma r cb = 10k, no load 1.75 2 v cc default undervoltage lockout v uvlo v cc rising 2.35 2.5 2.65 v v cc default undervoltage- lockout hysteresis v uvlo_hys 0.1 v reg regulator voltage v reg no load, v cc > 4v 3 3.3 3.5 v uv turn-on threshold v uv_th v uv rising 1.18 1.2 1.22 v uv turn-on threshold hysteresis v uv_hys v uv falling 0.1 v ov turn-on threshold v ov_th v ov rising 1.18 1.2 1.22 v ov turn-on threshold hysteresis v ov_hys v ov falling 0.1 v en threshold v en_th v en rising 0.95 1 1.05 v en threshold hysteresis v en_hys v en falling 0.1 v absolute maximum ratings package thermal characteristics (note 1) electrical characteristics note 1: package thermal resistances were obtained using the method described in jedec specification jesd51-7, using a four-layer board. for detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial . thermal resistance can be lowered with improved board design. stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. maxim integrated 2 max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output www.maximintegrated.com
(v in = v cc = 2.7v to 18v, t a = t j = -40c to +85c, unless otherwise noted. typical values are at v in = 12v, r cb = 25k, and t a = +25c.) (note 2) parameter symbol conditions min typ max units ov, uv, en input leakage current i leak v ov = v uv = v en = 0 to 5v -1 +1 a cb source current i thcb_norm power-on mode 12 a current limit circuit-breaker accuracy (note 3) i cb,th v in = 12v r cb = 25k 8 9 10 a r cb = 8.33k 2.7 3 3.3 circuit-breaker accuracy deviation r cb = 8.33k to 25k, compared to nominal current-limit value -10 +10 % slow-comparator response time (note 4) t scd 0.6% overcurrent 2.7 ms 30% overcurrent 200 s maximum current limit during startup i lim (see figure 2) i cb,th a fast-comparator threshold i fc_th 1.5 x i cb,th a fast-comparator response time t fcd 200 ns minimum cb voltage reference during foldback (note 5) v thcb_min v in - v out > 10v, r cb = 25k 35 mv maximum cb voltage reference during foldback (note 5) v thcb_max v in - v out < 2v, r cb = 25k 150 mv timing startup maximum time duration t su 43 48 53 ms autorestart delay time t restart 3.2 s time delay comparator high threshold v dly_th 1.85 2 2.15 v time delay pullup current i dly 1.6 1.9 2.2 a output short detection at startup t short 10.8 12 13.2 ms mosfet total on-resistance r on t a = +25c 18 23 m? t a = -40c to +85c 27 gate charge current i gate 4.56 5.7 6.84 a electrical characteristics (continued) maxim integrated 3 max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output www.maximintegrated.com
(v in = v cc = 2.7v to 18v, t a = t j = -40c to +85c, unless otherwise noted. typical values are at v in = 12v, r cb = 25k, and t a = +25c.) (note 2) note 2: all devices are 100% production tested at t a = +25c. limits over temperature are guaranteed by design. note 3: 25k is the maximum allowed external resistance value to be connected at cb pin to gnd for safe operation. all devices are tested with 8.33k, the parameter specified at r cb = 25k is guaranteed by bench characterization and correlation, with respect to the tested parameter at r cb = 8.33k. the formula that describes the relationship between r cb and the circuit-breaker current threshold is: i cb = r cb /2777.8. note 4: the current-limit slow-comparator response time is weighed against the amount of overcurrent so the higher the overcurrent condition, the faster the response time. note 5: foldback is active during the startup phase so the internal power mosfet operates within soa. parameter symbol conditions min typ max units outputs fault , pg output low voltage v ol low-impedance state, i fault = +5ma, i pg = +5ma 0.4 v fault , pg output high leakage current i oh high-impedance state, v fault = 16v, v pg = 16v 1 a current report isense full-scale current i isense 1.53 ma isense gain ratio isense/i out 170 a/a isense voltage range v isense v in = 12v 0 2.5 v isense offset error i isense_off t a = +25c -32 +32 a t a = -40c to +85c -45 +45 isense gain error i isense_error t a = +25c -3 +3 % t a = -40c to +85c -5.5 +5.5 pg threshold pg threshold v pg measured at v out , v in = 12v 0.9 x v in v pg assertion delay t pg from v out > v pg and (v gate - v in ) > 3v 12 16 20 ms out to in short-circuit detection threshold v iosht measured at v out , v in = 12v 0.9 x v in v out precharge threshold v pc measured at v out , v in = 12v 0.5 x v in v thermal shutdown thermal shutdown t sd t j rising +150 c thermal-shutdown hysteresis t j falling 20 c electrical characteristics (continued) maxim integrated 4 max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output www.maximintegrated.com
(v in = v cc = 2.7v to 18v, t j = -40c to +85c, unless otherwise noted. typical values are at v in = 12v, r cb = 25k, and t j = +25c.) (note 3) in supply current vs. temperature max15091 toc01 temperature (c) i in supply current (ma) 60 35 10 -15 3.15 3.20 3.25 3.30 3.10 -40 85 v in = 12v circuit-breaker threshold vs. temperature max15091 toc03 temperature (c) circuit-breaker threshold (a) 60 35 10 -15 2 4 8 6 10 12 14 0 -40 85 v in = 12v r cb = 25k r cb = 20k r cb = 15k r cb = 8.2k turn-on waveform max15091 toc05 10ms /div v uv 2v/div v out 10v/div v pg 10v/div i load 5a/div 0v 0v 0v 0a i load = 3.5a normal turn-off waveform max15091 toc06 10ms /div v uv 2v/div v out 10v/div v pg 10v/div i load 5a/div 0v 0v 0v 0a i load = 3.5a circuit-breaker threshold vs. circuit-breaker resistance max15091 toc02 r cb () circuit-breaker threshold (a) 20 15 10 2 4 6 8 10 12 0 5 25 v in = 12v on-resistance vs. temperature max15091 toc04 temperature (c) on-resistance (m) 603510-15 15 20 25 10 -40 85 v in = 12v i load = 1a typical operating characteristics maxim integrated 5 www.maximintegrated.com max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output
(v in = v cc = 2.7v to 18v, t j = -40c to +85c, unless otherwise noted. typical values are at v in = 12v, r cb = 25k, and t j = +25c.) (note 3) typical operating characteristics (continued) fault-shutdown waveform overload (slow trip) max15091 toc07 1ms /div v out 10v/div v pg 10v/div i load 10a/div v fault 10v/div 0v 0a 0v 0v circuit-breaker threshold vs. temperature max15091 toc09 temperature (c) circuit-breaker threshold (a) 60 35 10 -15 1.1 1.2 1.3 1.4 1.0 -40 85 v in = 12v v uv rising v uv falling autoretry functionality max15091 toc11 1s /div v out 10v/div i load 10a/div v pg 10v/div v fault 10v/div 0v 0a 0v 0v circuit-breaker threshold time vs. overcurrent max15091 toc12 overcurrent (%) circuit-breaker threshod time (ms) 25 20 15 10 5 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 0 0.2 0 30 v in = 12v fault-shutdown waveform overload (short circuit) max15091 toc08 1ms /div v out 10v/div v pg 10v/div i load 5a/div v fault 10v/div 0v 0a 0v 0v pg assertion delay max15091 toc10 10ms /div v uv 1v/div v out 5v/div v pg 5v/div 0v 0v 0v maxim integrated 6 www.maximintegrated.com max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output
max15091 MAX15091A tqfn top view 26 27 25 24 10 9 11 in in in in in 12 in out out out out out out 1 2 gnd 4 5 6 7 2021 19 17 16 15 gnd cb fault en cdly gate in out 3 18 28 8 isense v cc + reg 23 13 pg uv 22 14 gnd ov *connect exposed paddle to gnd. *ep pin name function 1C7 in supply voltage input. in is connected to the drain of the internal 18m mosfet. bypass in with a transient voltage-suppressor diode to gnd for clamping inductive kick transients in the case of fast output short-circuit to gnd. 8 v cc power-supply input. connect v cc to a voltage between 2.7v and 18v. connect a schottky diode (or 10 resistor) from in to v cc and a 1f bypass capacitor to gnd to guarantee full operation in the event v in collapses during a strong short from out to gnd. 9 gate gate of internal mosfet. during startup, a 5.7a current is sourced to enhance the internal mosfet with a 10v/ms slew rate. connect an external capacitance from ga te to gnd to reduce the output slew rate during startup. pin description pin confguration maxim integrated 7 max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output www.maximintegrated.com
detailed description enable logic and undervoltage/ overvoltage-lockout threshold the max15091/MAX15091A ics enable the output, as shown in table 1 . the devices are ready to drive the out - put when the v cc supply rises above the v uvlo thresh- old. the devices turn on the output when v cc > v uvlo , v uv is high (v uv > 1.2v) and v ov is low (v ov < 1.2v). the devices turn off the output when v uv falls below (1.2v - v uv_hys ) or v ov rises above 1.2v. an external resistive divider from in to uv, ov, and ground provide the flexibility to set the undervoltage/overvoltage-lockout threshold to any desired level between v uvlo and 18v. see figure 1 and the setting the undervoltage threshold and setting the overvoltage threshold sections. pin name function 10 cdly enable timer input. connect a capacitor between cdly and gnd to set a 1s/f duration timeout delay. the en input has to be pulled low before the timeout delay elapses, to prevent internal mosfet shutdown after power-up. 11 en enable input. externally pulled up to logic-high state through a resistor normally connected to reg. the en input must be pulled down (for at least 1ms) by the external circuit before a programmable timeout delay has elapsed, otherwise a shutdown occurs. the timeout timer starts counting when the internal mosfet is turned on. connect a capacitor between cdly and gnd to program the duration of the timeout delay. connect en to gnd to disable this feature. 12 fault fault status output. fault is an open-drain, active-low output. fault asserts low when an overcurrent or overtemperature condition triggers a shutdown. fault is disabled during startup. 13 pg power-good output. pg is an open-drain, active-high output. pg pulls low until the internal power mosfet is fully enhanced. 14, 25, 26 gnd ground 15C21 out load output. source of the internal power mosfet. 22 ov overvoltage enable input. pull ov high to turn off the internal mosfet. connect ov to an external resistive divider to set the overvoltage-disable threshold. see the setting the overvoltage threshold section. 23 uv active-high enable comparator input. pulling uv high enables the internal mosfet to turn on. uv also sets the undervoltage threshold. see the setting the undervoltage threshold section. 24 reg internal regulator output. bypass to ground with a 1f capacitor . do not power external circuitry using the reg output (except a resistor > 50k connected from reg to en). 27 cb current-limit threshold set. connect a resistor from cb to gnd to set the circuit-breaker threshold. maximum value of 25k can be accepted for safe operation. having the cb pin connected to gnd sets the circuit- breaker threshold at 0a. 28 isense current-sense output. the isense output sources a current that is proportional to the output current. connect a resistor between isense and gnd to produce a scaled voltage. ep exposed pad. connect ep to gnd externally. do not use ep as an electrical connection to gnd. ep is internally connected to gnd through a resistive path and must be connected to gnd externally . t o optimize power dissipation, solder the exposed pad to a large copper power plane. do not leave ep unconnected. pin description (continued) maxim integrated 8 max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output www.maximintegrated.com
startup once the device output is enabled, the device provides controlled application of power to the load. the voltage at out begins to rise at approximately 10v/ms default until the programmed circuit-breaker current level is reached, while the devices actively limit the inrush current at the circuit-breaker setting. an external capacitor connected to the gate pin allows the user to program the slew rate to a value lower than the default. the inrush current can be pro grammed by selecting the appropriate value of r cb . during startup, a foldback current limit is active to protect the internal mosfet to operate within the soa ( figure 2 ). an internal 48ms timer starts counting when the devices enter the startup phase. the devices complete the startup phase and enter normal operation mode if the voltage at out rises above the precharge threshold (0.9 x v in ) and (v gate - v out ) > 3v. an open-drain power-good output (pg) goes high-impedance 16ms after the startup successfully completes. the thermal-protection circuit is always active and the internal mosfet immediately turned off when the thermal-shutdown threshold condition is reached. variablespeed/bilevel fault protection variablespeed/bilevel fault protection incorporates com - parators with different thresholds and response times to monitor the load current ( figure 3 ). protection is provided in normal operation (after the startup period has expired) by discharging the mosfet gate in response to a fault condition. during a fault condition, the MAX15091A enters autoretry mode, while the max15091 latches off (see the autoretry and latch-off fault management section). enable input ( en) after a startup phase is successfully completed and the power-good output asserted, the en input has to be pulled low (for at least 1ms) before the t dly delay elapses. if the input is not pulled low before the t dly elapses, then the devices turn off the internal mosfet immediately and a new cycle is required for entering power-up mode. connect a capacitor between cdly and gnd to set a 1s/ f duration timeout delay. if this function in is not imple - mented, connect en to gnd for proper operation. table 1. output enable truth table x = dont care. v uv_th and v ov_th = 1.2v (typ). figure 1. undervoltage/overvoltage-threshold setting power supply precision analog inputs out v cc uv ov v cc > v uvlo v uv > v uv_th v ov < v ov_th on v cc < v uvlo x x off x v uv < (v uv_th - v uv_hys ) x off x x v ov > v ov_th off max15091 MAX15091A in uv ov gnd 1.2v r1 r2 r3 control logic maxim integrated 9 max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output www.maximintegrated.com
figure 2. startup inrush current foldback characteristics figure 3. variablespeed/bilevel response i inrush 2v 10v 4.5a 1.5a 1a 0.25a v in - v out r cb = 25k ? r cb = 8.33k ? 2.7ms 200ns turn-off time out current slow comparator fast comparator 0.6% overcurrent 30% overcurrent 50% overcurrent 200s maxim integrated 10 max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output www.maximintegrated.com
charge pump an integrated charge pump provides the gate-drive volt - age for the internal power mosfet. the charge pump generates the proper gate drive voltage above v in to fully enhance the internal power mosfet and guarantee low r on operation during normal state conditions. during startup, the internal charge pump drives the gate of the mosfet with a fixed 5.7a current to enhance the internal mosfet with 10v/ms slew rate (typ). connect an external capacitor (c gate ) from gate to gnd to reduce the output slew rate during startup. c gate can be calculated according to the following formula: c gate = (i gate x ?t)/?v gate where i gate is 5.7a (typ), dt is the desired slew-rate time, and ?v gate is the voltage at the gate of the internal mosfet at turn-on. the slew rate of the out pin during startup can be controlled by i gate /c gate under light-load driving conditions, or by the limited inrush current and the exter - nal capacitive load, whichever is less. (?v out /?t) = i lim /c load circuit-breaker comparator and current limit the current that passes through the internal power mosfet is com pared to a circuit-breaker threshold. an external resistor between cb and gnd sets this threshold according to the following formula: i cb = r cb /2777.8 where i cb is in amps and r cb (the resistor between cb and gnd) is in ohms. the circuit-breaker comparator is designed so the load current can exceed the threshold for some amount of time before tripping. the time delay varies inversely with the overdrive above the threshold. the greater the over - current condition, the faster the response time, allow ing the devices to tolerate load transients and noise near the circuit-breaker threshold. the maximum allowed external resistor value is 25k, which corresponds to a 9a cb threshold setting. programming the cb threshold to a value higher than 9a could cause unsafe operating condi - tions, resulting in damage to the devices. the devices also feature catastrophic short-circuit protec - tion. during normal operation, if out is shorted directly to gnd, a fast protection circuit forces the gate of the internal mosfet to discharge quickly and disconnect the output from the input. autoretry and latch-off fault management during a fault condition, the devices turn off the inter nal mosfet, disconnecting the output from the input. the MAX15091A enters autoretry mode and restarts after a t restart time delay has elapsed. the max15091 latches off and remains off until the enable logic is cycled off and on after a t restart delay. the delay prevents the latch-off device to restart and operate with an unsafe power-dissipation duty cycle. fault-status output ( fault) fault is an open-drain output that asserts low when a current-limit or an overtemperature-fault shutdown occurs. fault remains low until the next startup cycle. is capable of sinking up to 5ma current when asserted. power-good (pg) delay the devices feature an open-drain, power-good output that asserts after a t pg delay, indicating that the out volt - age has reached (0.9 x v in ) voltage and (v gate - v out ) > 3v. internal regulator output (reg) the devices include a linear regulator that outputs 3.3v at reg. reg provides power to the internal circuit blocks of the devices and must not be loaded externally (except for a resistor > 50k connected from reg to ). reg requires at least a 1f capacitor to ground for proper operation. current report output (isense) the isense pin is the output of an accurate current- sense amplifier and provides a source current that is pro - portional to the load current flowing into the main switch. the factory-trimmed current ratio is set to 170a/a. this produces a scaled voltage by connecting a resistor between isense and ground. this voltage signal then goes to an adc and provides digitized information of the current supplied to the powered system. maxim integrated 11 max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output www.maximintegrated.com
thermal protection the devices enter a thermal-shutdown mode in the event of overheating caused by excessive power dissipation or high ambient temperature. when the junction tem perature exceeds t j = +150c (typ), the internal thermal-protec - tion circuitry turns off the internal power mosfet. the devices recover from thermal-shutdown mode once the junction temperature drops by 20c (typ). in to out short-circuit protection at startup, after all the input conditions are satisfied (uv, ov, v uvlo ), the devices immediately check for an in to out short-circuit fault. if v out is greater than 90% of v in , the internal mosfet cannot be turned on so fault is asserted and the MAX15091A enters autoretry mode in 3.2s, while the max15091 latches off. if v out is lower than 90% of v in but greater than 50% of v in , the internal mosfet still cannot be turned on. no fault is asserted and the mosfet can turn on as soon as v out is lower than 50% of v in . applications information setting the undervoltage threshold the devices feature an independent on/off control (uv) for the internal mosfet. the devices operate with a 2.7v to 18v input voltage range and have a default 2.5v (typ) undervoltage-lockout threshold. the internal mosfet remains off as long as v cc < 2.5v or v uv < v uv_th . the undervoltage-lockout threshold is pro grammable using a resistive divider from in to uv, ov, and gnd ( figure 1 ). when v cc is greater than 2.7v and v uv exceeds the 1.2v (typ) threshold, the internal mosfet turns on and goes into normal operation. use the following equation to calculate the resistor values for the desired undervoltage threshold: ( ) - in uv _th v r1 1 r2 r3 ?? ?? = + ?? ?? where v in is the desired turn-on voltage for the output and v uv_th is 1.2v. r1 and (r2 + r3) create a resistive divider from in to uv. during normal operating conditions, v uv must remain above its 1.2v (typ) threshold. if v uv falls 100mv (v uv_hys ) below the threshold, the internal mosfet turns off, disconnecting the load from the input. setting the overvoltage threshold the devices also feature an independent overvoltage- enable control (ov) for the internal mosfet. when v ov exceeds the 1.2v (typ) threshold, the internal mosfet turns off. the overvoltage-lockout threshold is pro grammable using a resistive divider from in to uv, ov, and gnd (figure 1). use the following equation to calculate the resistor values for the desired overvoltage threshold: ( ) - in ov _th v r1 r2 1 r3 v ?? ?? += ?? ?? where v in is the desired turn-off voltage for the output and v ov_th is 1.2v. r1 and (r2 + r3) create a resistive divider from in to ov. during normal operating conditions, v ov must remain below its 1.2v (typ) threshold. if v ov rises above the v ov_th threshold, the internal mosfet turns off and disconnects the load from the input. maxim integrated 12 max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output www.maximintegrated.com
functional diagram maxim integrated 13 max15091 MAX15091A uv ov cdly 1.2v 2v 1.9a temp sense startup control and foldback control logic 2 x i slew i pd i gate i ref m s1 v cc gate in out isense fault pg 12a cb gate_ok reference generator reg en ldo regulator dly ctrl i load /5882 cb_slow_comp fast_comp m pow charge pump 0.9 x v in v cc 1.2v gate i load gnd max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output www.maximintegrated.com
+denotes a lead(pb)-free/rohs-compliant package. *ep = exposed pad. part temp range pin- package fault management max15091 eti+ -40nc to +85nc 28 tqfn- ep* latched off MAX15091A eti+ -40nc to +85nc 28 tqfn- ep* autoretry package type package code outline no. land pattern no. 28 tqfn t2855+8 21-0140 90-0028 max15091 MAX15091A r in r cb r pg c in tvs in v cc uv 12v ov en gnd cb reg r fault r1 r2 r3 c reg gate out pg fault isense dc-dc regulator 3.3v output a/d converter c gate cdly c cdly r isense ordering information chip information process: bicmos typical application circuit package information for the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. maxim integrated 14 max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output www.maximintegrated.com
revision number revision date description pages changed 0 3/13 initial release 1 9/13 removed future product marking from MAX15091A 14 revision history ? 2013 maxim integrated products, inc. 15 maxim integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim integrated product. no circuit patent licenses are implied. maxim integrated reserves the right to change the circuitry and specifcations without notice at any time. the parametric values (min and max limits) shown in the electrical characteristics table are guaranteed. other parametric values quoted in this data sheet are provided for guidance. maxim integrated and the maxim integrated logo are trademarks of maxim integrated products, inc. max15091/MAX15091A 2.7v to 18v, 9a, integrated hot-swap solution with current report output for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim integrateds website at www.maximintegrated.com.

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