TS836

TS836 MICROPOWER VOLTAGE SUPERVISOR RESET ACTIVE HIGH s ULTRA LOW POWER CONSUMPTION: 12µA max. at Vcc = 5V s PRECISION RESET THRESHOLD (guaranteed over Temperature) s THRESHOLD VOLTAGE: 4.50V typ. FOR TS836-4 s GUARANTEED RESET OPERATION FOR VCC DOWN TO 1V s OPEN DRAIN OUTPUT COMPARATOR WITH Vol = 450mV typ. @ I ol = 8mA & Vcc = 4V s FAST RESPONSE TIME: 20µs FOR A 10mV OVERDRIVE D SO8 (Plastic Micropackage) Z TO92 (Plastic Package) s 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. 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. APPLICATION PIN CONNECTIONS (top view) SO8-TSSOP8 NC 8 NC 7 NC 6 NC 5 P TSSOP8 (Thin Shrink Small Outline Package) s Power-on reset generator for micro controller s Power failure detector ORDER CODE Package Part Number TS836-4I Temperature Range D -40, +85°C • Z • P • 1 OUT 2 IN 3 NC 4 GND TO92 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 = T hin Shrink Small Outline Package (TSSOP) - only available in Tape & Reel (PT) 1 OUT 2 IN 3 GND May 2003 1/10 TS836 ABSOLUTE MAXIMUM RATINGS Symbol VCC VOUT IOUT PD TSTG Storage Temperature RTHJA= 175°C/W for SO8 package RTHJA= 200°C/W for TSSOP8 package RTHJA= 200°C/W for TO92 package Parameter Supply Voltage Output Voltage Output Current Power Dissipation2) SO8 TSSOP8 TO92 1) Value 7 -0.3 to Vcc 20 700 625 625 -65 to +150 + Unit V 0.3 V mA mW °C 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 OPERATING CONDITIONS Symbol VCC TOPER Supply Voltage Operating Free Air Temperature Range Parameter Value 1 to 5.5 -40 to +85 Unit V °C TS836-4 ELECTRICAL CHARACTERISTICS Tamb = 25°C (unless otherwise specified) Symbol VTHIi VTHD VHYS ICC VOL IOH TPHL Parameter Threshold Voltage - VCC Increasing Tmin. ≤ Tamb ≤ Tmax. Threshold Voltage - VCC Decreasing Tmin. ≤ Tamb ≤ Tmax. Hysteresis Voltage Current Consumption Low Level Output Voltage IOL = 8mA, Tmin. ≤ Tamb ≤ Tmax. Output Off-state Leakage Tmin. ≤ Tamb ≤ Tmax. VCC = 5V VCC = 4V VCC = 5V 450 2 Min. 4.17 4.17 50 Typ. 4.5 4.4 100 Max. 4.66 4.66 200 12 800 1000 100 1000 Unit V V mV µA mV nA µs Response Time High to Low RL = 10kΩ, CL = 15pF, VCC = Vthd -10mV 20 2/10 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 4.60 Vth vs Temperature while VCC decreasing 4.44 4.56 4.52 4.48 VTHD (Volts) -20 0 20 40 60 80 100 120 VTHI (Volts) 4.40 4.36 4.44 4.40 -40 4.32 -40 -20 0 20 40 60 80 100 120 Temperature (°C) Temperature (°C) Hysteresis vs Temperature ICC vs Temperature 10.0 200 Hysteresis (mV) 150 9.5 Icc (µA) -20 0 20 40 60 80 100 120 100 9.0 50 8.5 0 -40 8.0 -40 -20 0 20 40 60 80 100 120 Temperature (°C) Temperature (°C) Reset Output Voltage vs Input Voltage 5 Voltage Output Low vs Sink Current 1.00 Output voltage (Volts) 4 0.75 3 RL=10kΩ T=+25°C 2 VOL (Volts) 0.50 T=+25°C 0.25 1 0 4.3 0.00 4.4 4.5 4.6 0 5 10 15 20 Input voltage (Volts) ISINK (mA) 4/10 TS836 Reset Output Voltage vs Input Voltage TS836-4 TS836-4 RL=10Kohms T=25°C Supply Failing down: Reset Delay Time 5V 5V Input signal 2V/div 0.5ms/div Input signal 0.5V/div 10 µs/div 0V 5V TS836-4 RL=10Kohms T=25°C 3.5V 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 Supply Rising up: Output Delay Time 5V Input signal 0.5V/div 0.1 ms/div 3.5V 3.5V TS836-4 RL=10 Kohms CL=10 nF T=25°C 5V Input signal 0.5V/div 0.5 µs/div 3.5V 5V TS836-4 RL=10 Kohms T=25°C Reset output 2V/div 0.1 ms/div 0V Reset output 2V/div 0.5 µs/div 0V Reset Output Voltage vs Input Voltage (example) Reset Output Voltage vs Input Voltage (example) Input signal 6V 2 V/div 0.5 ms/div 4V TS836-4 RL=10 Kohms T=25°C Input signal 5V 2 V/div 0.5 ms/div 3V 6V TS836-4 RL=10 Kohms T=25°C 5V Reset output 2V/div 0.5 ms/div 0V Reset output 2V/div 0.5 ms/div 0V 5/10 TS836 Basic configuration Configuration with an additional Capacitive Load Load Resistor Load Resistor Vcc Input Voltage TS836 Output Voltage Reset Vcc Input Voltage TS836 Capacitive Load Reset Output Voltage 6/10 TS836 PACKAGE MECHANICAL DATA SO-8 MECHANICAL DATA DIM. A A1 A2 B C D E e H h L k ddd 0.1 5.80 0.25 0.40 mm. MIN. 1.35 0.10 1.10 0.33 0.19 4.80 3.80 1.27 6.20 0.50 1.27 8˚ (max.) 0.04 0.228 0.010 0.016 TYP MAX. 1.75 0.25 1.65 0.51 0.25 5.00 4.00 MIN. 0.053 0.04 0.043 0.013 0.007 0.189 0.150 0.050 0.244 0.020 0.050 inch TYP. MAX. 0.069 0.010 0.065 0.020 0.010 0.197 0.157 0016023/C 7/10 TS836 PACKAGE MECHANICAL DATA - TO92 TAPE AMMO PACK & TO92 TAPE & REEL TO-92 MECHANICAL DATA mm. TYP inches TYP. DIM. AL A T d I1 P PO P2 F1/F2 Dh DP W W0 W1 W2 H H0 H1 DO L1 MIN. MAX. 5.0 5.0 4.0 MIN. MAX. 0.197 0.197 0.157 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 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 0.018 0.500 0.500 0.250 0.098 0 0 0.709 0.236 0.354 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 15.5 3.8 16 4.0 0.610 0.150 0.630 0.157 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. DIM. MIN. A b D E e e1 L R S1 W 4.32 0.36 4.45 3.30 2.41 1.14 12.7 2.16 0.92 0.41 TYP MAX. 4.95 0.51 4.95 3.94 2.67 1.40 15.49 2.41 1.52 0.56 MIN. 170.1 14.2 175.2 129.9 94.9 44.9 500.0 85.0 36.2 16.1 TYP. MAX. 194.9 20.1 194.9 155.1 105.1 55.1 609.8 94.9 59.8 22.0 mils 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. DIM. MIN. A A1 A2 b c D E E1 e K L L1 0˚ 0.45 0.60 1 0.05 0.80 0.19 0.09 2.90 6.20 4.30 3.00 6.40 4.40 0.65 8˚ 0.75 0˚ 0.018 0.024 0.039 1.00 TYP MAX. 1.2 0.15 1.05 0.30 0.20 3.10 6.60 4.50 0.002 0.031 0.007 0.004 0.114 0.244 0.169 0.118 0.252 0.173 0.0256 8˚ 0.030 0.039 MIN. TYP. MAX. 0.047 0.006 0.041 0.012 0.008 0.122 0.260 0.177 inch 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. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. © The ST logo is a registered trademark of STMicroelectronics © 2003 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom © http://www.st.com 10/10