AAT3511

AAT3510/1/2/3/4/5/6/7/8/9 Micropower µP Reset with Watchdog Timer General Description The AAT351x PowerManager products are members of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. This family of microprocessor reset circuits provides the ultimate in versatility, allowing system designers full customization of the µP monitor and reset function without any additional components. The AAT351x family offers several combinations of threshold voltage, watchdog timeout period, reset active period, and output drive configurations, which are all factory-programmed options. All devices are available in 32 reset threshold voltages from 2.6V up to 5V, with three watchdog timeout periods from 6.3ms to 1600ms and three reset timeouts from 1ms up to 140ms. Available output configurations are active low push-pull, active low open drain, active low bi-directional, and active high push-pull. The AAT351x family is designed to ignore fast negative transients on VDD and to ensure that reset outputs remain valid down to 1V. The AAT351x family is available in the Pb-free, space-saving 5-pin SOT23 surface mount package and is specified over the -40 to +85°C temperature range. Features • • • • • • • PowerManager™ SmartSwitch ™ • • Tight Voltage Tolerance: ±1.5% Low Quiescent Current: 5µA Guaranteed Reset Valid Down to 1V 32 Voltage Options from 2.6V to 5.0V Three Reset Active Period Options: — 1ms, 20ms, 140ms Three Watchdog Timeout Period Options: — 6.3ms, 102ms, 1600ms Four Output Options: — Open Drain — Inverting — Non-Inverting — Bi-Directional Low Temperature Coefficient: 100ppm/°C 5-Pin SOT23 Package Applications • • • • • • • Critical µP and µC Supply Monitoring Embedded Control Systems Industrial Controllers Intelligent Instruments Notebook Computers Portable Electronics Power-On Reset Circuits Typical Application V DD VCC RESET (RESET) RESET INPUT VDD AAT351x µP I/O LINE WDI GND 3510.2006.03.1.7 1 AAT3510/1/2/3/4/5/6/7/8/9 Micropower µP Reset with Watchdog Timer Pin Descriptions Pin # AAT3510 AAT3512 AAT3513 AAT3511 AAT3514 AAT3517 AAT3518 1 N/A 1 AAT3515 AAT3516 AAT3519 1 Symbol RESET Function AAT3510/13/15: RESET output goes low whenever VDD falls below the reset threshold. CMOS push-pull output. AAT3511/14/16: RESET output goes low whenever VDD falls below the reset threshold. Bidirectional CMOS pushpull output intended to interface directly to microprocessors with bi-directional resets. AAT3517/18/19: RESET output goes low whenever VDD falls below the reset threshold. Open drain output. Connect a pull-up resistor to any supply voltage up to 5.5V. Ground connection pin. RESET active-high output. This CMOS push-pull signal is the logical inverse of RESET. Manual reset input pin. Active low. Pull low to force a reset. Watchdog input pin. Triggers a reset if it remains in a steady state for the duration of the watchdog timer period. Input voltage pin. 2 N/A 3 4 5 2 1 3 4 5 2 3 N/A 4 5 2 3 4 N/A 5 GND RESET MR WDI VCC Pin Configuration 5-lead SOT23 (Top View) RESET GND MR 1 5 5-lead SOT23 (Top View) VCC RESET GND 1 5 VCC 2 2 3 4 WDI MR 3 4 WDI AAT3510 AAT3511 AAT3517 AAT3512 5-lead SOT23 (Top View) RESET GND RESET 1 5 5-lead SOT23 (Top View) VCC RESET GND 1 5 VCC 2 2 3 4 WDI RESET 3 4 MR AAT3513 AAT3514 AAT3518 AAT3515 AAT3516 AAT3519 3510.2006.03.1.7 2 AAT3510/1/2/3/4/5/6/7/8/9 Micropower µP Reset with Watchdog Timer Absolute Maximum Ratings1 TA = 25°C, unless otherwise noted. Symbol VCC VMR, VWDI VRESET IVCC, IMR, IWDI IRESET dVCC/dt TJ Description VCC to GND MR, WDI to GND RESET to GND (Push-Pull or Bidirectional Output) RESET to GND (Open Drain Output) Maximum Continuous Input Current RESET/RESET Output Current Rate of Rise of VCC Operating Junction Temperature Range (-40°C to +150°C) Max -0.3 to 6 -0.3 to VCC + 0.3 -0.3 to VCC + 0.3 -0.3 to 6 20 20 100 150 Units V V V mA mA V/µs °C Thermal Information2 Symbol ΘJA PD Description Maximum Thermal Resistance Maximum Power Dissipation Value 190 526 Units °C/W mW 1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at conditions other than the operating conditions specified is not implied. Only one Absolute Maximum Rating should be applied at any one time. 2. Mounted on an FR4 board. 3510.2006.03.1.7 3 AAT3510/1/2/3/4/5/6/7/8/9 Micropower µP Reset with Watchdog Timer Electrical Characteristics VCC = 2.5V to 5.5V, TA = -40°C to +85°C1, unless otherwise noted. Typical values are at TA = 25°C. Symbol Description VCC Operating Voltage Range Conditions TA = -40°C to +85°C AAT3510/1/2/3/4/7/8: MR & WDI Unconnected AAT3515/6/9: MR Unconnected TA = 25°C TA = -40 to +85°C -40°C < TA < +85°C AAT351xIGV-xx-A-x-T1 AAT351xIGV-xx-B-x-T1 AAT351xIGV-xx-C-x-T1 VCC Falling at 1mV/µs VCC ≥ 1.0V, ISINK = 50µA VCC ≥ 1.2V, ISINK = 100µA VCC ≥ 2.7V, ISINK = 1.2mA VCC ≥ 4.5V, ISINK = 3.2mA VCC ≥ 2.7V, ISOURCE = 500µA VCC ≥ 4.5V, ISOURCE = 800µA VCC ≥ 2.7V, ISINK = 1.2mA VCC ≥ 4.5V, ISINK = 3.2mA VCC ≥ 1.8V, ISOURCE = 150µA VCC ≥ 2.7V, ISOURCE = 500µA VCC ≥ 4.5V, ISOURCE = 800µA VCC = 3.6V VCC = 5.5V VCC = 3.6V VCC = 5.5V Min 1 Typ 5 6 Max 5.5 15 18 15 18 VTHNOM+1.5% VTHNOM+2.5% Units V ICC Supply Current µA VTH TC tRP TRD Reset Threshold Voltage Reference Voltage Temperature Coefficient Reset Active Timeout Period VCC to RESET Delay VTHNOM-1.5% VTH VTHNOM-2.5% VTH ±40 1 20 140 1.4 28 200 40 V ppm/°C 2 40 280 ms µs Push/Pull RESET Output (AAT3510, 3512, 3513, 3514, 3515, 3516, 3518, 3519) VOL RESET Low Output Voltage 0.3 0.3 0.3 0.4 0.8 x VCC VCC - 1.5 0.3 0.4 0.8 x VCC 0.8 x VCC VCC - 1.5 400 V VOH RESET High Output Voltage RESET Low Output Voltage V VOH RESET High Output Voltage V Bidirectional RESET Output (AAT3511, 3514, 3516) tS Transition Flip-Flop Setup Time2 VCC = 3.0V, CL = 120pF VCC = 5.0V, CL = 200pF VCC = 3.0V, CL = 250pF VCC = 5.0V, CL = 400pF 0.4 ns 333 333 666 666 tR RESET Output Rise Time3 ns VPTH Active Pull-Up Enable VCC = 5.0V Threshold RESET Active Pull-Up VCC = 5.0V Current RESET Pull-Up Resistance 0.65 20 V mA 5.2 kΩ 4.2 4.7 1. Over-temperature limits are guaranteed by design, not production tested. 2. This is the minimum time RESET must be held low by an external pull-down source to set the active pull-up flip-flop. 3. Measured from RESET VOL to (0.8 x VCC), open circuit output. 4 3510.2006.03.1.7 AAT3510/1/2/3/4/5/6/7/8/9 Micropower µP Reset with Watchdog Timer Electrical Characteristics VCC = 2.5V to 5.5V, TA = -40°C to +85ºC1, unless otherwise noted. Typical values are at TA = 25°C. Symbol Description Conditions VCC VCC VCC VCC ≥ ≥ ≥ ≥ 1.0V, 1.2V, 2.7V, 4.5V, ISINK ISINK ISINK ISINK = = = = 50µA 100µA 1.2mA 3.2mA Min Typ Max 0.3 0.3 0.3 0.4 1.0 Units Open-Drain RESET Output (AAT3517, 3518, 3519) VOL ID(OFF) RESET Low Output Voltage V Reset Leakage Current AAT351xIGV-xx-x-A-T1 AAT351xIGV-xx-x-B-T1 AAT351xIGV-xx-x-C-T12 VIL = 0.3 x VCC, VIH = 0.7 x VCC 4.3 71 1.12 0.3 x VCC WDI = VCC, Time Average VWDI = 0, Time Average 120 -15 6.3 102 1.6 50 µA Watchdog Input (AAT3510, 3511, 3512, 3513, 3514, 3517, 3518) tWD tWDI VIL VIH IWDI Watchdog Timeout Period WDI Minimum Pulse Width WDI Input Threshold3 WDI Input Threshold3 WDI Input Current4 9.3 153 2.4 ms s ns V µA 0.8 x VCC 160 -20 0.3 x VCC Manual RESET Input (AAT3510, 3511, 3512, 3515, 3516, 3517, 3519) VIL VIH MR MR MR MR MR MR Input Threshold Input Threshold Input Pulse Width Glitch Rejection Internal Pull-Up Resistance to Reset Delay 0.7 x VCC 1 TA = 25°C VCC = 5V 35 100 52 230 75 V µs ns kΩ ns 1. Over-temperature limits are guaranteed by design, not production tested. 2. Watchdog timeout period C is not available on AAT3513, AAT3514, and AAT3518. 3. WDI is internally serviced within the watchdog period if WDI is left unconnected. 4. The WDI input current is specified as the average input current when the WDI input is driven high or low. The WDI input is designed for a three-stated-output device with a 10µA maximum leakage current and capable of driving a maximum capacitive load of 200pF. The three-state device must be able to source and sink at least 200µA when active. 3510.2006.03.1.7 5 AAT3510/1/2/3/4/5/6/7/8/9 Micropower µP Reset with Watchdog Timer Typical Characteristics Unless otherwise noted, VIN = 3V, TA = 25°C. Supply Current vs. Temperature 10 VCC Falling to RESET Propagation Delay vs. Temperature Propagation Delay (µs) 160 140 120 100 80 60 40 20 0 -40 -20 0 20 40 60 80 100 9 Supply Current (µA) 8 7 6 5 4 3 2 1 0 -40 VCC = 5V VCC Falling at 1mV/µs V RST - VCC = 100mV VCC = 3V VCC = 1V -20 0 20 40 60 80 100 Temperature (°C) Temperature (°C) Manual Reset to RESET Propagation Delay vs. Temperature Normalized Timeout Period Propagation Delay (ns) 500 450 400 350 300 250 200 -40 -20 0 20 40 60 80 100 1.05 1.04 1.03 1.02 1.01 1.00 0.99 0.98 0.97 0.96 0.95 -40 Normalized Reset Timeout Period vs. Temperature V CC = 5V -20 0 20 40 60 80 100 Temperature (°C) Temperature (°C) Normalized Watchdog Timeout Period vs. Temperature Normalized Timeout Period 1.05 1.04 1.03 1.02 1.01 1.00 0.99 0.98 0.97 0.96 0.95 -40 Maximum VCC Transient Duration vs. Reset Threshold Overdrive Transient Duration (µs) 80 70 60 50 40 30 20 10 0 10 100 1000 V RST = 2.63V -20 0 20 40 60 80 100 Temperature (°C) Reset Threshold Overdrive (mV) VRST - VCC 6 3510.2006.03.1.7 AAT3510/1/2/3/4/5/6/7/8/9 Micropower µP Reset with Watchdog Timer Typical Characteristics Unless otherwise noted, VIN = 3V, TA = 25°C. Bidirectional Pullup Characteristic +5V PASSIVE 4.7kΩ PULLUP 2V/div 74HC05 INPUT 4.7k 100pF RESET, ACTIVE PULLUP 2V/div RESET, INPUT 5V/div +5V 74HC05 INPUT 100pF VCC RESET MR GND Time (200ns/div) 3510.2006.03.1.7 7 AAT3510/1/2/3/4/5/6/7/8/9 Micropower µP Reset with Watchdog Timer Functional Block Diagram VCC VCC Reset Generator RESET3 RESET4 VREF MR1 Watchdog Timer Detector Watchdog Timer WDI2 GND 1. 2. 3. 4. MR pin available on AAT3510/1/2/5/6/7/9. WDI pin avaliable on AAT3510/1/2/3/4/7/8. RESET pin available on AAT3510/1/3/4/5/6/7/8/9. RESET pin available on AAT3512/3/4/5/6/8/9. 3510.2006.03.1.7 8 AAT3510/1/2/3/4/5/6/7/8/9 Micropower µP Reset with Watchdog Timer Factory-Trimmed Reset Thresholds1 and Ordering Information AAT351x IGV - X.XX-X- X-T1 Watchdog Timeout (if applicable) Reset Active Period Threshold Voltage Reset Active Period A: TR(MIN) = 1ms B: TR(MIN) = 20ms C: TR(MIN) = 140ms Watchdog Timeout Period A: TWD(NOM) = 6.3ms B: TWD(NOM) = 102ms C: TWD(NOM) = 1600ms1 VDD Threshold Voltage 2.63: 2.70: 2.80: 2.93: 3.00: 3.08: 3.20: 3.30: 3.40: 3.50: 3.60: 3.70: 3.80: VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) = = = = = = = = = = = = = 2.63V 2.7V 2.8V 2.93V 3.0V 3.08V 3.2V 3.3V 3.4V 3.5V 3.6V 3.7V 3.8V 3.90: 4.00: 4.10: 4.20: 4.38: 4.40: 4.50: 4.63: 4.70: 4.80: 4.90: 5.00: VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) VTH(NOM) = = = = = = = = = = = = 3.9V 4.0V 4.1V 4.2V 4.3V 4.38V 4.5V 4.63V 4.7V 4.8V 4.9V 5.0V 1. Watchdog timeout period C is not available on AAT3513, AAT3514, and AAT3518. 3510.2006.03.1.7 9 AAT3510/1/2/3/4/5/6/7/8/9 Micropower µP Reset with Watchdog Timer Ordering Information Package SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 SOT23-5 HEXYY HIXYY KLXYY JNXYY KMXYY MFXYY INXYY LZXYY IQXYY Marking1 HVXYY HUXYY HGXYY HHXYY EWXYY MYXYY Part Number (Tape and Reel)2 AAT3510IGV-2.63-C-C-T1 AAT3510IGV-2.93-C-C-T1 AAT3510IGV-3.08-C-C-T1 AAT3510IGV-4.38-C-C-T1 AAT3511IGV-2.63-C-C-T1 AAT3512IGV-2.63-A-C-T1 AAT3512IGV-2.63-C-C-T1 AAT3515IGV-2.63-C-T1 AAT3515IGV-2.93-B-T1 AAT3515IGV-2.93-C-T1 AAT3515IGV-3.08-C-T1 AAT3515IGV-4.38-C-T1 AAT3515IGV-4.63-C-T1 AAT3517IGV-2.63-C-C-T1 AAT3517IGV-2.8-B-C-T1 AAT3517IGV-2.93-C-C-T1 All AnalogicTech products are offered in Pb-free packaging. The term “Pb-free” means semiconductor products that are in compliance with current RoHS standards, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. For more information, please visit our website at http://www.analogictech.com/pbfree. 1. XYY = date and assembly code. 2. Sample stock is generally held on part numbers listed in BOLD. 10 3510.2006.03.1.7 AAT3510/1/2/3/4/5/6/7/8/9 Micropower µP Reset with Watchdog Timer Package Information SOT23-5 2.85 ± 0.15 1.90 BSC 0.95 BSC 1.575 ± 0.125 1.10 ± 0.20 0.60 REF 2.80 ± 0.20 1.20 ± 0.25 0.15 ± 0.07 4° ± 4° GAUGE PLANE 10° ± 5° 0.40 ± 0.10 0.075 ± 0.075 0.60 REF 0.45 ± 0.15 0.10 BSC All dimensions in millimeters. © Advanced Analogic Technologies, Inc. AnalogicTech cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in an AnalogicTech product. No circuit patent licenses, copyrights, mask work rights, or other intellectual property rights are implied. AnalogicTech reserves the right to make changes to their products or specifications or to discontinue any product or service without notice. Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. AnalogicTech warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with AnalogicTech’s standard warranty. Testing and other quality control techniques are utilized to the extent AnalogicTech deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed. Advanced Analogic Technologies, Inc. 830 E. Arques Avenue, Sunnyvale, CA 94085 Phone (408) 737-4600 Fax (408) 737-4611 3510.2006.03.1.7 11