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| NJU7702/03 VOLTAGE DETECTOR ! GENERAL DESCRIPTION The NJU7702/03 is a high precision and low quiescent current voltage detector. The detection voltage is internally fixed with an accuracy of 1.0%. The NJU7702/03 are useful for preventing malfunction of microcomputer or DSP etc. through detect a drop in voltage of battery or power supply. NJU7702 is Nch. Open Drain and NJU7703 is a C-MOS output type. Small packaging makes NJU7702 and NJU7703 suitable for space conscious applications. ! FEATURES " High Precision Detection Voltage " Low Quiescent Current " Detection Voltage Range " Output Configuration " CMOS Technology " Package Outline ! PIN CONFIGURATION NJU7702/03F 5 4 ! PACKAGE OUTLINE NJU7702/03F 1.0% 0.8A typ. (VDET =3V version) 1.36.0V(0.1V Step) NJU7702: Nch. Open Drain type NJU7703: C-MOS Output type SOT-23-5 123 1. NC 2. Sub (*1) 3. VSS 4. VOUT 5. VDD (*1): Connect Sub terminal to GND. ! EQUIVALENT CIRCUIT VDD VDD VOUT VREF VREF VOUT VSS VSS NJU7702 NJU7703 Ver.2005-02-28 -1- NJU7702/03 ! DETECTION VOLTAGE RANK LIST 3Device Name NJU7702/03F13 NJU7702/03F27 NJU7702/03F28 NJU7702/03F03 NJU7702/03F31 NJU7702/03F42 NJU7702/03F06 VDET 1.3V 2.7V 2.8V 3.0V 3.1V 4.2V 6.0V ! NJU7702 ! ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VDD Output Voltage VOUT Output Current IOUT Power Dissipation PD Operating Temperature Topr Storage Temperature Tstg (*2) : Device itself ! ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL Detection Voltage VDET Hysteresis Voltage Quiescent Current Output Current VHYS ISS IOUT VDD=VDET+1V Nch,VDS=0.5V (Ta=25C) RATINGS +10 VSS-0.3+10 50 200(*2) -40 +85 -40 +125 UNIT V V mA mW C C TEST CONDITION VDET=1.3V1.7V Version VDET=1.8V6.0V Version VDD=1.2V VDD=2.4V (2.7V Version) Output Leak Current ILEAK VDD=VOUT=9V Detection Voltage Temperature 100 ppm/C VDET /Ta Ta=0 +85C - - Coefficient Operating Voltage 0.8 9 V VDD RL=100k - (*3) (*3): The minimum Operating Voltage(VOPL) indicates the same value of the input voltage(VDD) on condition that VOUT becomes 10% or less of the input voltage(VDD). MIN. -1.0% VDET x0.03 - - 0.75 4.5 - TYP. - VDET x0.05 0.5 0.8 2.0 7.0 - (Ta=25C) MAX. UNIT +1.0% V VDET V x0.08 1.0 A 1.6 A mA - mA - 0.1 A -2- Ver.2005-02-28 NJU7702/03 ! TEST CIRCUIT 1 COMMOM TEST CIRCUIT RL ISS A NJU7702 VDD VOUT VOUT VDD V VDET / VOPL VSS /Sub V 2 OUTPUT CURRENT/OUTPUT LEAK CURRENT TEST CIRCUIT NJU7702 VDD VDD VSS /Sub VOUT IOUT / ILEAK A VDS / VOUT Ver.2005-02-28 -3- NJU7702/03 ! TYPICAL APPLICATION 1 In case of using one power supply. VDD RL 100k NJU7702 VDD VOUT CPU Micro Processor etc. RESET SIGNAL INPUT VSS /Sub VSS 2In case of using two power supply. VDD1 VDD2 RL 100k NJU7702 VDD VOUT CPU Micro Processor etc. RESET SIGNAL INPUT VSS /Sub VSS -4- Ver.2005-02-28 NJU7702/03 ! NJU7703 ! ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VDD Output Voltage VOUT Output Current IOUT Power Dissipation PD Operating Temperature Topr Storage Temperature Tstg (*4) : Device itself ! ELECTRICAL CHARACTERISTICS PARAMETER SYMBOL Detection Voltage VDET Hysteresis Voltage Quiescent Current VHYS ISS VDD=VDET+1V Nch,VDS=0.5V Output Current IOUT Pch,VDS=0.5V VDET=1.3V1.7V Version VDET=1.8V6.0V Version VDD=1.2V VDD=2.4V (2.7V Version) VDD=4.8V (3.9V Version) VDD=6.0V (4.0V5.6V Version) VDD=8.4V (5.7V Version) (Ta=25C) MAX. UNIT +1.0% V VDET V x0.08 1.0 A 1.6 A mA - mA - mA - - mA (Ta=25C) UNIT V V mA mW C C RATINGS +10 VSS-0.3 VDD+0.3 50 200(*4) -40 +85 -40 +125 TEST CONDITION MIN. -1.0% VDET x0.03 - - 0.75 4.5 2.0 2.5 TYP. - VDET x0.05 0.5 0.8 2.0 7.0 3.5 4.0 3.0 5.0 mA - Detection Voltage Temperature VDET /Ta Ta=0 +85C 100 ppm/C - - Coefficient Operating Voltage 0.8 9 V VDD RL=100k - (*5) (*5): The minimum Operating Voltage(VOPL) indicates the same value of the input voltage(VDD) on condition that VOUT becomes 10% or less of the input voltage(VDD). Ver.2005-02-28 -5- NJU7702/03 ! TEST CIRCUIT 1 COMMON TEST CIRCUIT ISS A NJU7703 VDD VOUT VDD V VDET VSS /Sub V VOUT 2 Nch OUTPUT CURRENT TEST CIRCUIT NJU7703 VDD VDD VSS /Sub VOUT IOUT A VDS 3 Pch OUTPUT CURRENT TEST CIRCUIT VDS NJU7703 VDD VDD VSS /Sub VOUT IOUT A -6- Ver.2005-02-28 NJU7702/03 4 MINUMUM OPERATING VOLTAGE TEST CIRCUIT RL NJU7703 VDD VOPL VSS /Sub VOUT VDD V V VOUT ! TYPICAL APPLICATION VDD CPU Micro Processor etc. VOUT RESET SIGNAL INPUT NJU7703 VDD VSS /Sub VSS Ver.2005-02-28 -7- NJU7702/03 ! FUNCTIONAL DESCRIPTION (1) Basic operation Supply voltage (VDD) Detection voltage (VDET) Minimum operation voltage (VOPL) VSS Hysteresis voltage (VHYS) Release voltage (VDET + VHYS) Output voltage (VOUT) (1) When supply voltage(VDD) drops below detection voltage(VDET), Output voltage(VOUT) changes "H" to "L" to alert reset state. (2) The reset state is kept while VDD is lower than release voltage. The release voltage is a sum of VDET and Hysterisis voltage (VHYS). Please refer to the (*7) below. (3) When VDD becomes higher than the release voltage, then VOUT changes from "L" to "H" to resume normal state. (*7) VHYS is to avoid unstable VOUT state caused by rapid voltage change at nearby VDET. VSS (*8): C-MOS output product (NJU7703) : When VDD less than VOPL, VOUT is free of the shaded region. [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. -8- Ver.2005-02-28 |
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