S71xxN 7 Semiconductor Standard Voltage Detector Description * The S71xx prevents the error of system from supply voltage below normal voltage level at the time the power on and instantaneous power off in systems. Features * Super low current consumption * High current of output transistor * Hysteresis Voltage is Provided Applications * As Control Circuit of Battery-Backed Memory * As Measure Against Erroneous Operations at Power On-Off * As Resetting Function for the CPU-Mounted Equipment --- PC, Printer, VTR, Fax, C-TV etc. * As Measure Against System Runaway at Instantaneous Break of Power Supply etc. Ordering Information Type NO. Marking S71xxN S71 Package Code TO-92N : Detecting Voltage Code Outline Dimensions Unit : mm 4.20~4.40 4.20~4.40 2.25 Max. 2.14 Typ. 13.50~14.50 0.52 Max. 0.90 Max. 1.27 Typ. 1 2 3 0.40 Max. 3.55 Typ 3.09~3.29 PIN Connections 1. Vcc 2. GND 3. OUT KSD-I0C002-000 1 S71xxN Equivalent Circuit Diagram Maximum ratings Characteristic (Ta=25C) Unit Symbol Ratings Supply Voltage VCC -0.3 ~ +10 V Power Dissipation PD 500 mW Output Voltage VOUT -0.3 ~ +10 V Operating Temperature Range TOPR -30 ~ +75 Storage Temperature Range TSTG -55 ~ +150 Electrical Characteristics (VCC=5V, Ta=25C) Symbol Test Circuit Detecting Voltage VS 1 Hysteresis Voltage VS 1 RL=200, VCC = LHL VS/T 1 Low Level Output voltage VOL Leakage Current When OFF Characteristic Typ. Max. Unit - - 0.4 V RL =200, Ta= -30~75 - 0.01 - %/ 1 RL =200, VCC = VS Min - 0.1 0.4 V ILEAK 1 VCC=10V, RL=200 - - 0.1 A Circuit current at ON ICCL 1 VCC = VS Min - - 500 A Circuit current at OFF ICCH 1 VCC = VS Max +0.1V - - 50 A Operating Voltage VOPR 1 RL =200, VOL0.4V - 0.8 1.6 V Output Current at ON I IOL I 1 RL =0, VCC = VS Min 10 20 - mA Output Current at ON II IOL II 1 RL =0, VCC = VS Min, Ta= -30~75 8 - - mA LH Transmission delay time tPLH 2 RL =1.0 , CL=100 - 15 - HL Transmission delay time tPHL 2 RL =1.0 , CL=100 - 10 - Temperature Coefficient of Detecting Voltage Test Condition Min. * See Table 1 VS : Standard Detection Voltage KSD-I0C002-000 2 S71xxN * Table 1 Electrical Characteristics Characteristic Detecting voltage (VCC=5V, Ta=25C) Symbol VS Test Circuit 1 Test Condition RL=200 VCC=HL VOL0.4V KSD-I0C002-000 Min. Typ. Max. S7145N 4.35 4.5 4.65 S7142N 4.05 4.2 4.35 S7139N 3.75 3.9 4.05 S7136N 3.45 3.6 3.75 S7133N 3.15 3.3 3.45 S7131N 2.95 3.1 3.25 S7129N 2.75 2.9 3.05 S7127N 2.55 2.7 2.85 S7125N 2.35 2.5 2.65 S7123N 2.15 2.3 2.45 S7121N 1.95 2.1 2.25 Unit V 3 S71xxF Test Circuit 1 Test Circuit 2 Application Circuit (1) Battery Low Indicator Note 1. : Connecting of LED and R2 obtains a voltage drop indicator. (2) Resetting for CPU KSD-I0C002-000 4 S71xxN Electrical Characteristic Curves Fig. 2 VS - Ta Fig. 1 VO - VCC Fig. 3 VS - Ta Fig. 4 VOL - Ta Fig. 5 IOL - Ta KSD-I0C002-000 5 S71xxN The AUK Corp. products are intended for the use as components in general electronic equipment (Office and communication equipment, measuring equipment, home appliance, etc.). Please make sure that you consult with us before you use these AUK Corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, transportation, combustion control, all types of safety device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equipments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice. KSD-I0C002-000 6