S71xxSF Semiconductor 7 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 • Current Consumption is Low (ICCL=300 ㎂ Typ. ICCH =30 ㎂ Typ.) • Resetting Output Minimum Guarantee Voltage is Low (0.8V Typ.) • Hysteresis Voltage is Provided (50 ㎷ Typ.) 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 S71xxSF Package Code SOT-23F 7□□ □□: Detecting Voltage Code Outline Dimensions Unit : mm Equivalent Circuit Diagram 2.30~2.50 1.50~1.70 1.90 Typ. 0.20 Max. 2 0.80~1.00 0.45 Max. 3 0.10 Max. 2.80~3.00 1 PIN Connections 1. OUT 2. Vcc 3. GND KSD-I5C008-001 1 S71xxSF Maximum ratings Characteristic (Ta=25°C) Unit Symbol Ratings Supply Voltage VCC -0.3 ~ +15 V Power Dissipation PD * 300 mW Output Voltage VOUT -0.3 ~ +15 V Operating Temperature Range TOPR -30 ~ +75 ℃ Storage Temperature Range TSTG -55 ~ +150 ℃ * With PCB(8×8 ㎜Copper Area) at Glass Epoxy Board (t=1.7 ㎜, Area; 20×20 ㎜) Electrical Characteristics Characteristic Detecting Voltage Hysteresis Voltage (VCC=5V, Ta=25°C) Symbol VS Test Circuit 1 Test Condition RL=200Ω VCC=H→L VOL≤0.4V Min. Typ. Max. S7145SF 4.35 4.5 4.65 S7142SF 4.05 4.2 4.35 S7139SF 3.75 3.9 4.05 S7136SF 3.45 3.6 3.75 S7133SF 3.15 3.3 3.45 S7131SF 2.95 3.1 3.25 S7129SF 2.75 2.9 3.05 S7127SF 2.55 2.7 2.85 S7125SF 2.35 2.5 2.65 S7123SF 2.15 2.3 2.45 Unit V ΔVS 1 RL=200Ω, VCC = L→H→L 30 50 100 ㎷ VS /ΔT 1 RL =200Ω, Ta= -30 ~ +75℃ - ±0.01 - %/℃ Low Level Output voltage VOL 1 RL =200Ω, VCC = VS Min - - 0.4 V Leakage Current When OFF ILEAK 1 VCC=15V, RL=200Ω - - 0.1 µA Circuit current at ON ICCL 1 VCC = VS Min - 300 500 µA Circuit current at OFF ICCH 1 VCC = VS Max +0.1V - 30 50 µA Threshold operating Voltage VOPR 1 RL =200Ω, VOL≤0.4V - 0.8 1.6 V Output Current at ON I IOL I 1 RL =0Ω, VCC = VS Min - 0.05V 20 - - mA Output Current at ON II IOL II 1 RL =0Ω, VCC = VS Min - 0.05V Ta= -30 ~ +75℃ 16 - - mA L→H Transmission delay time tPLH 2 RL =1.0 ㏀, CL=100 ㎊ - 15 - ㎲ H→L Transmission delay time tPHL 2 RL =1.0 ㏀, CL=100 ㎊ - 10 - ㎲ Temperature Coefficient of Detecting Voltage VS : Standard Detection Voltage KSD-I5C008-001 2 S71xxSF 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-I5C008-001 3 S71xxSF Electrical Characteristic Curves Fig. 1 VOUT – VCC Fig. 2 ICC - VCC Fig. 3 ICCH – Ta Fig. 4 IOL – RL KSD-I5C008-001 4 S71xxSF 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-I5C008-001 5