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| SI9988 New Product Vishay Siliconix Buffered H-Bridge FEATURES D D D D D D D 0.65-A H-Bridge 200-kHz Switching Rate Shoot-Through Limited TTL Compatible Inputs 3.8- to 13.2-V Operating Range Surface Mount Packaging Total rDS(on) for N- and P-Channel: 1.8 W @ VDD = 4.5 V and TA = 85_C APPLICATIONS D D D D D D D VCM Driver Brushed Motor Driver Stepper Motor Driver Power Converter Optical Disk Drives Power Supplies High Performance Servo DESCRIPTION The SI9988 is an integrated, buffered H-bridge with TTL compatible inputs and the capability of delivering a continuous 0.65 A @ VDD = 5 V (room temperature) at switching rates up to 200 kHz. Internal logic prevents the upper and lower outputs of either half-bridge from being turned on simultaneously. Both outputs may be forced low (for motor braking) by pulling EN to logic high. The SI9988 is available in an 8-Pin TSSOP package, specified to operate over a voltage range of 3.8 V to 13.2 V, and the industrial temperature range of -40 to 85_C (D suffix). FUNCTIONAL BLOCK DIAGRAM, PIN CONFITURATION AND TRUTH TABLE TSSOP-8 GND VDD PWM EN 1 2 3 4 Top View (3) PWM 8 OUTB SB SA OUTA EN Shoot-Through Protection Logic (4) (2) VDD SI9988 7 6 5 TRUTH TABLE EN 0 0 1 1 (1) PWM 0 1 0 1 OUTA 0 1 0 0 OUTB 1 0 0 0 GND (6) SA (5) (8) OUTPUT A B (7) SB ORDERING INFORMATION Part Number SI9988DQ-T1 Document Number: 71326 S-02304--Rev. A, 09-Oct-00 Marking 988 Temperature Range -40 to 85_C Package Tape and Reel www.vishay.com 1 SI9988 Vishay Siliconix ABSOLUTE MAXIMUM RATINGSa VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V Voltage on any pin with respect to ground . . . . . . . . . . . -0.3 V to VDD +0.3 V Voltage on pins 5, 8 with respect to GND . . . . . . . . . . . . . . -1 V to VDD +1 V Voltage on pins 6, 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 V to GND +1 V Peak Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to 150_C Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150_C Notes a. Device mounted with all leads soldered or welded to PC board. b. Derate 8.3 mW/_C above 25_C. c. TJ = TA + (PD)(qJA), PD = Power Dissipation. Continous Iout current (TJ = 135_C, YDD = 5V) TA = 25_C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.67A TA = 85_C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.47A Power Dissipationb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.83 W qJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120_C/W Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to 85_C New Product Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings 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. RECOMMENDED OPERATING RANGE VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.8 V to 13.2 V Maximum Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . . . . . . . . . . 135_C SPECIFICATIONS Test Conditions Unless Otherwise Specified Parameter Input (EN, PWM) Input Voltage High Input Voltage Low Input Current with Input Voltage High Input Current with Input Voltage Low VINH VINL IINH IINL VIN = 13.2 V VIN = 0 V -1 2 1 1 V mA m Limits D Suffix, -40 to 85_C Symbol VDD = 3.8 to 13.2 V SA @ GND, SB @ GND Mina Typb Maxa Unit Output Output Voltage Highc VOUTH IOUT = -300 mA VDD = 10.8 V VDD = 4.5 V VDD = 3.8 V Output Voltage Lowc IOUT = 300 mA VDD = 10.8 V VDD = 4.5 V VDD = 3.8 V Output V Clamp High Output V Clamp Low VCLH VCLL EN = PWM w 2 V IOUT = 100 mA IOUT = -100 mA -1.0 10.55 4.20 3.40 10.70 4.35 3.62 0.09 0.12 0.14 VDD +0.7 -0.7 0.20 0.25 0.30 VDD +1.0 V V VOUTL Supply EN = 0V, PWM = 100 kHz, VDD = 5 V VDD Supply Current IDD EN = 4.5 V, PWM = 100 kHz, VDD = 5.5 V EN = PWM = 4.5 V, VDD = 5.5 V 1.0 60 55 1.5 140 110 mA mA m www.vishay.com 2 Document Number: 71326 S-02304--Rev. A, 09-Oct-00 SI9988 New Product SPECIFICATIONS Test Conditions Unless Otherwise Specified Parameter Dynamic Propogation Delay - OUTAd Propogation Delay - OUTBd Break-Before-Maked TPLH TPHL TPLH TPHL BBMPLH BBMPHL VDD = 5 V, EN = 0 V 300 115 75 330 225 215 nS Vishay Siliconix Limits D Suffix, -40 to 85_C Symbol VDD = 3.8 to 13.2 V SA @ GND, SB @ GND Mina Typb Maxa Unit Notes a. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. b. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing, measured TA = 25_C. c. Min and Max value mesaured at TJ = 135_C. d. PLH = PWM low to high, PHL = PWM high to low. TYPICAL CHARACTERISTICS (25_C UNLESS NOTED) Output High Voltage vs. Output Current 15 VDD = 13.2 V 12 10.8 V VOUTH (V) 9 250 VDD = 3.8 V 5V 200 VOUTL (mV) 300 Output Low Voltage vs. Output Current 150 13.2 V 100 10.8 V 6 5V 3 3.8 V 50 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Output Current (A) Output Current (A) 150 Standby Current vs. Supply Voltage 5 EN = 4.5 V Supply Current vs. Supply Voltage f = 100 kHz EN = 0 V 4 120 I DD - Standby ( m A) 60 I DD (mA) 90 3 2 30 1 0 3 5 7 9 11 13 15 0 3 5 7 9 11 13 15 VDD - Supply Voltage (V) VDD - Supply Voltage (V) Document Number: 71326 S-02304--Rev. A, 09-Oct-00 www.vishay.com 3 SI9988 Vishay Siliconix New Product TYPICAL CHARACTERISTICS (25_C UNLESS NOTED) Standby Current vs. Temperature 160 EN = 4.5 V 140 4 120 I DD - Standby ( m A) 100 80 60 40 20 0 -50 0 -50 5.0 V VDD = 13.3 V I DD (mA) 3 VDD = 13.3 V 5 f = 100 kHz EN = 0 V Supply Current vs. Temperature 2 5V 1 3.8 V 3.8 V 0 50 Temperature (_C) 100 150 -20 10 40 70 100 130 Temperature (_C) Supply Current vs. Frequency 16 14 Propagation Time (PWM to OUTA) vs. Supply Voltage 500 400 VDD = 13.2 V Delay Time (ns) 12 10 8 6 5.0 V 4 100 2 0 0 100 200 300 400 500 3.8 V 0 3.0 4.5 6.0 7.5 9.0 10.5 12.0 I DD (mA) 300 TPHL 200 TPLH f - Frequency (kHz) VDD - Supply Voltage (V) Propagation Time (PWM to OUTB) vs. Supply Voltage 500 350 300 400 Delay Time (ns) 250 300 TPLH Brake Time (ns) 200 Brake_Before_Make Time vs. Supply Voltage TPLH 150 TPHL 100 200 100 TPHL 50 0 3.0 0 3.0 4.5 6.0 7.5 9.0 10.5 12.0 4.5 6.0 7.5 9.0 10.5 12.0 VDD - Supply Voltage (V) VDD - Supply Voltage www.vishay.com 4 Document Number: 71326 S-02304--Rev. A, 09-Oct-00 SI9988 New Product TIMING WAVEFORMS Vishay Siliconix PWM: OUT B: TPLH BBM PLH OUT A: BBM PHL TPHL EN PWM OUTA OUTB FIGURE 1. Document Number: 71326 S-02304--Rev. A, 09-Oct-00 www.vishay.com 5 |
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