ASM1233D-L/D/M March 2005 rev 1.3 Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output General Description Applications The ASM1233D-L/1233D/1233M are voltage supervisors with • Set-top boxes low-power, 5/3.3V µP Reset, with an active LOW, open-drain • Cellular phones output. Maximum supply current over temperature is 15µA for • PDAs 3.3V devices and 20µA for 5V devices. • Energy management systems • Embedded control systems The ASM1233D-L/1233D/1233M generates an active LOW • Printers reset signal whenever the monitored supply is out of tolerance. • Single board computers A precision reference and comparator circuit monitors power supply (VCC) level. The tolerance are 5%,10% and 15%. When Typical Operating Circuit an out-of-tolerance condition is detected, an internal power-fail signal is generated which forces an active LOW reset signal. VCC ASM1233D-L/D/M After VCC returns to an in-tolerance condition, the reset signal remains active for 350ms to allow the power supply and system microprocessor to stabilize. The ASM1233D-L/1233D/1233M is designed with an opendrain output stage and operates over the extended industrial temperature range. These devices are available in compact SOT-223, SO-8 and TO-92 packages. Microprocessor RESET RESET GND Other low power products in this family include ASM1810/11/ 12/15/16/17. Block Diagram VCC Key Features • Low Supply Current • 15µA maximum (<=3.6V), 20µA maximum (5.5V) • Automatically restarts a microprocessor after power failure • 350ms reset delay after VCC returns to an in-tolerance condition • Active LOW power-up reset, 5kΩ internal pull-up • Precision temperature-compensated voltage reference and • Eliminates external components • Low-cost SOT-223/SO-8/TO-92 packages • Operating temperature: -40°C to +85°C ASM1233D-L,ASM1233D,ASM1233M 5.0kΩ Supply Tolerance Bias + comparator - RESET Delay 350ms Typical Reference GND Alliance Semiconductor 2575 Augustine Drive . Santa Clara, CA 95054 . Tel: 408.855.4900 . Fax: 408.855.4999 . www.alsc.com Notice: The information in this document is subject to change without notice ASM1233D-L/D/M March 2005 rev 1.3 Pin Configuration GND 4 VCC 3 SO-8 1 RESET 1 VCC 2 NC 3 GND 4 GND TO-92 ASM1233M 2 ASM1233D RESET ASM1233D-L SOT-223 8 NC 7 NC 6 NC 5 NC ASM1233D-L ASM1233D ASM1233M 1 2 3 Pin Description Pin# TO-92 ASM1233D-L ASM1233D TO-92 ASM1233M SO-8 SOT-223 1 3 4 1,4 GND 2 1 1 2 RESET 3 2 2 3 VCC Power supply input. - - 3,5,6,7&8 - NC No connection Pin Name Description Ground. Active LOW reset output. Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output Notice: The information in this document is subject to change without notice 2 of 11 ASM1233D-L/D/M March 2005 rev 1.3 Application Information tF VCC Operation - Power Monitor VHTL The ASM1233D-L/1233D/1233M detects out-of-tolerance VCCTP power supply conditions. It resets a processor during power- VLTL up, power-down and generates a reset to the system the reset threshold. When an out-of-tolerance VCC voltage is detected, the RESET signal is asserted. On power-up, tRPD RESET ~ ~ processor when the monitored power supply voltage is below RESET is kept active (LOW) for approximately 350ms after the power supply voltage has reached the selected tolerance. This allows the power supply and microprocessor to stabilize before RESET is released. VOL tR Figure 2: Timing Diagram: Power-Down VHTL VLTL ~ VCC VCCTP tRPU VOH ~ RESET Figure 1: Timing Diagram: Power-Up Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output Notice: The information in this document is subject to change without notice 3 of 11 ASM1233D-L/D/M March 2005 rev 1.3 Absolute Maximum Ratings Parameter Min Max Unit Voltage on VCC -0.5 7 V Voltage on RESET -0.5 VCC + 0.5 V Operating Temperature Range -40 85 °C 260 °C 125 °C 2 200 KV V Soldering Temperature (for 10 sec) Storage Temperature -55 ESD rating HBM MM NOTE: These are stress ratings only and functional use is not implied. Exposure to absolute maximum ratings for prolonged periods of time may affect device reliability. Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output Notice: The information in this document is subject to change without notice 4 of 11 ASM1233D-L/D/M March 2005 rev 1.3 Electrical Characteristics Unless otherwise noted, VCC = 5V+10% and specifications are over the operating temperature range of -40°C to +85°C. All voltages are referenced to ground. Parameter Symbol Conditions VCC Supply Voltage RESET asserted VOH Output Current IOL Operating Current ICC VCC Trip Point VCCTP Voltage High Trip Level Voltage Low Trip Level Internal Pull-up Resistor VHTL VLTL COUT VCC Detect to RESET Low tRPD VCC Detect to RESET High tRPU VCC Slew Rate (VHTL - VLTL) VCC Slew Rate (VLTL - VHTL) - - IOUT < 500 µA VCC-0.5V VCC-0.1V Output = 0.4V 8 Max Unit 5.5 V 0.4 V mA VCC < 5.5V, RESET output open 8 20 VCC < =3.6V, RESET output open 6 15 µA ASM1233D-LZ-5 2.98 3.06 3.15 ASM1233D-LZ-10 2.8 2.88 2.97 ASM1233D-LZ-15 2.64 2.72 2.8 ASM1233DZ-5 4.5 4.625 4.74 ASM1233DZ-10 4.25 4.375 4.49 ASM1233DZ-15 4.0 4.125 4.24 ASM1233M-5 4.25 4.375 4.49 ASM1233M-55 4.5 4.625 4.75 ASM1233M-3 2.64 2.72 2.8 ASM1233D, ASM1233MS-5, ASM1233MS-55 4.75 ASM1233MS-3 3.14 ASM1233D-L 3.06 ASM1233D, ASM1233MS-5, ASM1233MS-55 4.00 ASM1233MS-3 2.48 ASM1233D-L 2.3 RP Output Capacitance Typ 1.2 VOL Output Voltage Min 3.5 5.0 V V V 7.5 kΩ 10 pF 2 10 µs ASM1233D-L, ASM1233M 200 350 500 ASM1233D 250 350 450 ms tF 300 µs tR 0 ns Note: A 1kΩ resistor maybe required in some applications for proper operation of the microprocessor reset control circuit. Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output Notice: The information in this document is subject to change without notice 5 of 11 ASM1233D-L/D/M March 2005 rev 1.3 Family Selection Guide Part # RESET Voltage (V) RESET Time (ms) Output Stage RESET Polarity ASM1810 4.620, 4.370, 4.120 150 Push-Pull LOW ASM1811 4.620, 4.350, 4.130 150 Open-Drain LOW ASM1812 4.620, 4.350, 4.130 150 Push-Pull HIGH ASM1815 3.060, 2.880, 2.550 150 Push-Pull LOW ASM1816 3.060, 2.880, 2.550 150 Open-Drain LOW ASM1817 3.060, 2.880, 2.550 150 Push-Pull HIGH ASM1233D 4.625, 4.375, 4.125 350 Open-Drain LOW ASM1233M 4.625, 4.375, 2.720 350 Open-Drain LOW ASM1233D-L 3.06, 2.880, 2.720 350 Open-Drain LOW Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output Notice: The information in this document is subject to change without notice 6 of 11 ASM1233D-L/D/M March 2005 rev 1.3 Package Information SOT-223 Dimensions in Inches Dimensions in millimeters Symbol Min Max Min Max A 0.061 0.071 1.55 1.80 A1 0.0008 0.004 0.02 0.10 B 0.024 0.031 0.60 0.80 B1 0.114 0.122 2.90 3.10 C 0.009 0.013 0.24 0.32 D 0.248 0.264 6.30 6.70 E 0.130 0.146 3.30 e 0.090BSC e1 H 0.181 BSC 0.264 3.70 2.30 BSC 4.60 BSC 0.287 6.70 7.30 L 0.036 MIN 0.91 MIN L2 0.0024 MIN 0.06 BSC α 0° 6° 0° 6° Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output Notice: The information in this document is subject to change without notice 7 of 11 ASM1233D-L/D/M March 2005 rev 1.3 Plastic SO-8 (8-Pin) H E D A2 A C A1 D θ e L B Dimensions in Inches Min Max Dimensions in Millimeters Min Max Plastic SO-8 (8-Pin) A 0.053 0.069 1.35 1.75 A1 0.004 0.010 0.10 0.25 A2 0.049 0.059 1.25 1.50 B 0.012 0.020 0.31 0.51 C 0.007 0.010 0.18 0.25 D 0.193 BSC 4.90 BSC E 0.154 BSC 3.91 BSC e 0.050 BSC 1.27 BSC H 0.236 BSC 6.00 BSC L 0.016 0.050 0.41 1.27 θ 0° 8° 0° 8° Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output Notice: The information in this document is subject to change without notice 8 of 11 ASM1233D-L/D/M March 2005 rev 1.3 To-92 (3-Pin) Dimensions in Inches Min Max Dimensions in Millimeters Min Max TO-92 A 0.175 0.185 4.445 4.699 b 0.016 0.020 0.406 0.508 C 0.014 0.016 0.356 0.406 φD 0.175 0.185 4.445 4.699 E 0.138 0.144 3.505 3.658 e 0.098 0.102 2.489 2.591 e1 0.045 0.055 1.143 1.397 j 0.168 0.174 4.269 4.420 L 0.500 0.585 12.7 14.86 s 0.095 0.099 2.413 2.515 Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output Notice: The information in this document is subject to change without notice 9 of 11 ASM1233D-L/D/M March 2005 rev 1.3 Ordering Information RESET Output Voltage Part Number** TIN - LEAD DEVICES ASM1233D-L-5 ASM1233D-L-10 ASM1233D-L-15 ASM1233D-LZ-5 ASM1233D-LZ-10 ASM1233D-LZ-15 ASM1233D-5 ASM1233D-10 ASM1233D-15 ASM1233DZ-5 ASM1233DZ-10 ASM1233DZ-15 RESET Time Open Drain Output Stage* RESET Polarity Package Package Marking 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW 3L TO-92 3L TO-92 3L TO-92 4L SOT-223 4L SOT-223 4L SOT-223 3L TO-92 3L TO-92 3L TO-92 4L SOT-223 4L SOT-223 4L SOT-223 ASM1233D-L-5 ASM1233D-L-10 ASM1233D-L-15 RVLL RWLL RXLL ASM1233D-5 ASM1233D-10 ASM1233D-15 RSLL RTLL RULL 350 ms LOW 3L TO-92 ASM1233M-55 ASM1233M-55 4.625 5% 10% 15% 5% 10% 15% 5% 10% 15% 5% 10% 15% 5% ASM1233M-5 4.375 10% 350 ms LOW 3L TO-92 ASM1233M-5 ASM1233M-3 2.72 15% 350 ms LOW 3L TO-92 ASM1233M-3 ASM1233MS-55 4.625 5% 350 ms LOW 8L SOIC ASM1233MS-55 ASM1233MS-5 4.38 10% 350 ms LOW 8L SOIC ASM1233MS-5 2.72 15% 350 ms LOW 8L SOIC ASM1233MS-3 3.06 2.88 2.72 3.06 2.88 2.72 4.625 4.375 4.125 4.625 4.375 4.125 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms 350 ms LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW LOW 3L TO-92 3L TO-92 3L TO-92 4L SOT-223 4L SOT-223 4L SOT-223 3L TO-92 3L TO-92 3L TO-92 4L SOT-223 4L SOT-223 4L SOT-223 ASM1233D-L-5F ASM1233D-L-10F ASM1233D-L-15F KVLL KWLL KXLL ASM1233D-5F ASM1233D-10F ASM1233D-15F KSLL KTLL KULL 350 ms LOW 3L TO-92 ASM1233M-5F ASM1233MS-3 LEAD FREE DEVICES ASM1233D-L-5F ASM1233D-L-10F ASM1233D-L-15F ASM1233D-LZ-5F ASM1233D-LZ-10F ASM1233D-LZ-15F ASM1233D-5F ASM1233D-10F ASM1233D-15F ASM1233DZ-5F ASM1233DZ-10F ASM1233DZ-15F 3.06 2.88 2.72 3.06 2.88 2.72 4.625 4.375 4.125 4.625 4.375 4.125 RESET Tolerance ASM1233M-5F 4.375 5% 10% 15% 5% 10% 15% 5% 10% 15% 5% 10% 15% 5% ASM1233M-55F 4.625 10% 350 ms LOW 3L TO-92 ASM1233M-55F ASM1233M-3F 2.72 15% 350 ms LOW 3L TO-92 ASM1233M-3F ASM1233MS-5F 4.38 5% 350 ms LOW 8L SOIC ASM1233MS-5F 4.625 10% 350 ms LOW 8L SOIC ASM1233MS-55F 2.72 15% 350 ms LOW 8L SOIC ASM1233MS-3F ASM1233MS-55F ASM1233MS-3F Low Power, 5V/3.3V, µP Reset, Active LOW, Open-Drain Output Notice: The information in this document is subject to change without notice 10 of 11 ASM1233D-L/D/M Alliance Semiconductor Corporation 2575, Augustine Drive, Santa Clara, CA 95054 Tel: 408 - 855 - 4900 Fax: 408 - 855 - 4999 www.alsc.com Copyright © Alliance Semiconductor All Rights Reserved Part Number: ASM1233D-L/D/M Document Version: 1.3 © Copyright 2003 Alliance Semiconductor Corporation. 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