TS836 MICROPOWER VOLTAGE SUPERVISOR RESET ACTIVE HIGH ■ ULTRA LOW POWER CONSUMPTION: 12µA max. at Vcc = 5V ■ PRECISION RESET THRESHOLD (guaranteed over Temperature) ■ THRESHOLD VOLTAGE: 4.50V typ. FOR TS836-4 ■ GUARANTEED RESET OPERATION FOR VCC DOWN TO 1V ■ OPEN DRAIN OUTPUT COMPARATOR WITH Vol = 450mV typ. @ I ol = 8mA & Vcc = 4V ■ FAST RESPONSE TIME: 20µs FOR A 10mV D SO8 (Plastic Micropackage) Z TO92 (Plastic Package) OVERDRIVE ■ 100mV INTERNAL HYSTERESIS DESCRIPTION The TS836 ultra low power integrated circuit incorporates a high stability band-gap voltage reference and a comparator with open drain output. P TSSOP8 (Thin Shrink Small Outline Package) The threshold voltage is set at 4.5V for TS836-4 by internal thermally matched resistances. The comparator exhibits a 20µs response (with 10mV overdrive) and has an open drain output active when input voltage is lower than the threshold. An internal hysteresis of 100mV increases the comparator’s noise margin and prevents false reset operation. PIN CONNECTIONS (top view) SO8-TSSOP8 NC 8 NC 7 NC 6 NC 5 2 IN 3 NC 4 GND APPLICATION ■ Power-on reset generator for micro controller ■ Power failure detector 1 OUT TO92 ORDER CODE Package Part Number TS836-4I Temperature Range -40, +85°C D Z P • • • Z= TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT) and Ammo Pack (AP) D = Small Outline Package (SO) - also available in Tape & Reel (DT) P = Thin Shrink Small Outline Package (TSSOP) - only available in Tape & Reel (PT) May 2003 1 OUT 2 IN 3 GND 1/10 TS836 ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Supply Voltage VOUT Output Voltage IOUT Output Current 1) Unit 7 V -0.3 to Vcc Power Dissipation2) Storage Temperature + V 0.3 20 mA 700 625 625 mW -65 to +150 °C Value Unit SO8 TSSOP8 TO92 PD TSTG Value 1. All voltages values, except differential voltage are with respect to network ground terminal. 2. PD is calculated with T AMB=+25°C, TJ=+150°C and RTHJA= 175°C/W for SO8 package RTHJA= 200°C/W for TSSOP8 package RTHJA= 200°C/W for TO92 package OPERATING CONDITIONS Symbol VCC TOPER Parameter Supply Voltage Operating Free Air Temperature Range 1 to 5.5 V -40 to +85 °C TS836-4 ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit VTHIi Threshold Voltage - VCC Increasing Tmin. ≤ Tamb ≤ Tmax. 4.17 4.5 4.66 V VTHD Threshold Voltage - VCC Decreasing Tmin. ≤ Tamb ≤ Tmax. 4.17 4.4 4.66 V VHYS Hysteresis Voltage 50 100 200 mV 12 µA ICC Current Consumption VCC = 5V VOL Low Level Output Voltage IOL = 8mA, Tmin. ≤ Tamb ≤ Tmax. VCC = 4V 450 800 1000 mV IOH Output Off-state Leakage Tmin. ≤ Tamb ≤ Tmax. VCC = 5V 2 100 1000 nA TPHL 2/10 Response Time High to Low RL = 10kΩ, CL = 15pF, VCC = Vthd -10mV 20 µs TS836 EQUIVALENT SCHEMATIC DIAGRAM INPUT (Vcc) OUTPUT 1.2V Vref GND TIMING DIAGRAM V cc V thi V thd V cc m in t R e set A ctiv e In activ e t 3/10 TS836 Vth vs Temperature while VCC increasing Vth vs Temperature while VCC decreasing 4.60 4.44 VTHD (Volts) VTHI (Volts) 4.56 4.52 4.48 4.40 4.36 4.44 4.40 -40 -20 0 20 40 60 80 100 4.32 -40 120 -20 0 Temperature (°C) 200 10.0 150 9.5 Icc (µA) Hysteresis (mV) 60 80 100 120 80 100 120 ICC vs Temperature 100 50 9.0 8.5 -20 0 20 40 60 80 100 8.0 -40 120 -20 0 20 40 60 Temperature (°C) Temperature (°C) Reset Output Voltage vs Input Voltage Voltage Output Low vs Sink Current 1.00 5 4 0.75 VOL (Volts) Output voltage (Volts) 40 Temperature (°C) Hysteresis vs Temperature 0 -40 20 3 RL=10kΩ T=+25°C 2 0.50 T=+25°C 0.25 1 0 4.3 0.00 4.4 4.5 Input voltage (Volts) 4/10 4.6 0 5 10 ISINK (mA) 15 20 TS836 Reset Output Voltage vs Input Voltage 5V Input signal 2V/div 0.5ms/div TS836-4 RL=10Kohms T=25°C Supply Failing down: Reset Delay Time 5V Input signal 0.5V/div 10 µs/div 0V 3.5V 5V 3.5V Reset output 2V/div 0.5ms/div 0V Reset output 2V/div 10 µs/div 0V Supply Failing Down: Extended Reset Delay Time with an Additional Capacitor 5V Input signal 0.5V/div 0.1 ms/div TS836-4 RL=10 Kohms CL=10 nF T=25°C 3.5V 3.5V Input signal 0.5V/div 0.5 µs/div TS836-4 RL=10 Kohms T=25°C 5V Input signal 6V 2 V/div 0.5 ms/div 4V 0V 5V Reset output 2V/div 0.5 µs/div 0V Reset Output Voltage vs Input Voltage (example) Reset output 2V/div 0.5 ms/div Supply Rising up: Output Delay Time 3.5V Reset output 2V/div 0.1 ms/div 0V 6V TS836-4 RL=10Kohms T=25°C TS836-4 RL=10 Kohms T=25°C Reset Output Voltage vs Input Voltage (example) Input signal 5V 2 V/div 0.5 ms/div 3V TS836-4 RL=10 Kohms T=25°C 5V Reset output 2V/div 0.5 ms/div 0V 5/10 TS836 Basic configuration Configuration with an additional Capacitive Load Load Resistor Vcc Input Voltage 6/10 Load Resistor Reset TS836 Output Voltage Vcc Input Voltage Reset TS836 Capacitive Load Output Voltage TS836 PACKAGE MECHANICAL DATA SO-8 MECHANICAL DATA DIM. mm. MIN. TYP inch MAX. MIN. TYP. MAX. A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.04 0.010 A2 1.10 1.65 0.043 0.065 B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.197 E 3.80 4.00 0.150 0.157 e 1.27 0.050 H 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 k ddd 8˚ (max.) 0.1 0.04 0016023/C 7/10 TS836 PACKAGE MECHANICAL DATA - TO92 TAPE AMMO PACK & TO92 TAPE & REEL TO-92 MECHANICAL DATA DIM. AL A T d I1 P PO P2 F1/F2 D h D P W W0 W1 W2 H H0 H1 DO L1 MIN. mm. TYP MAX. 5.0 5.0 4.0 MIN. 0.45 2.5 11.7 12.4 5.95 2.4 -1 -1 17.5 5.7 8.5 12.7 12.7 6.35 2.5 0 0 18.0 6 9 15.5 16 3.8 4.0 inches TYP. MAX. 0.197 0.197 0.157 0.018 13.7 13 6.75 2.8 1 1 19.0 6.3 9.75 0.5 20 16.5 25 4.2 11 0.098 0.461 0.488 0.234 0.094 -0.039 -0.039 0.689 0.224 0.335 0.500 0.500 0.250 0.098 0 0 0.709 0.236 0.354 0.610 0.630 0.150 0.157 0.539 0.512 0.266 0.110 0.039 0.039 0.748 0.248 0.384 0.020 0.787 0.650 0.984 0.165 0.433 Packing information are available at: http://www.st.com/stonline/prodpres/packages/stdlin.htm 8/10 TS836 PACKAGE MECHANICAL DATA - TO92 BULK TO-92 MECHANICA DATA mm. mils DIM. MIN. TYP MAX. MIN. TYP. MAX. A 4.32 4.95 170.1 194.9 b 0.36 0.51 14.2 20.1 D 4.45 4.95 175.2 194.9 E 3.30 3.94 129.9 155.1 e 2.41 2.67 94.9 105.1 e1 1.14 1.40 44.9 55.1 L 12.7 15.49 500.0 609.8 R 2.16 2.41 85.0 94.9 S1 0.92 1.52 36.2 59.8 W 0.41 0.56 16.1 22.0 0102782/C Packing information are available at: http://www.st.com/stonline/prodpres/packages/stdlin.htm 9/10 TS836 PACKAGE MECHANICAL DATA TSSOP8 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. 1.2 A1 0.05 A2 0.80 b MAX. 0.047 0.15 0.002 1.05 0.031 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.008 D 2.90 3.00 3.10 0.114 0.118 0.122 E 6.20 6.40 6.60 0.244 0.252 0.260 E1 4.30 4.40 4.50 0.169 0.173 0.177 e 0.65 K 0˚ L 0.45 L1 1.00 0.60 1 0.006 0.039 0.041 0.0256 8˚ 0˚ 0.75 0.018 8˚ 0.024 0.030 0.039 0079397/D Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. 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