DATA SHEET AAT3510/3515/3517/3518 Micropower P Reset with Watchdog Timer General Description Features The AAT351x PowerManager products are members of Tight Voltage Tolerance: 1.5% Skyworks Total Power Management IC (TPMIC) prod- Low Quiescent Current: 5A uct family. This family of microprocessor reset circuits Guaranteed Reset Valid Down to 1V provides the ultimate in versatility, allowing system 32 Voltage Options from 2.6V to 5.0V designers full customization of the P monitor and reset Three Reset Active Period Options: function without any additional components. The AAT351x 1ms, 20ms, 140ms family offers several combinations of threshold voltage, Three Watchdog Timeout Period Options: watchdog timeout period, reset active period, and output 6.3ms, 102ms, 1600ms drive configurations, which are all factory-programmed Four Output Options: options. All devices are available in 32 reset threshold Open Drain voltages from 2.6V up to 5V, with three watchdog time- Inverting out periods from 6.3ms to 1600ms and three reset tim- Non-Inverting eouts from 1ms up to 140ms. Available output configura- Bi-Directional tions are active low push-pull, active low open drain, Low Temperature Coefficient: 100ppm/C active low bi-directional, and active high push-pull. 5-Pin SOT23 Package The AAT351x family is designed to ignore fast negative transients on V and to ensure that reset outputs Applications DD remain valid down to 1V. Critical P and C Supply Monitoring The AAT351x family is available in the Pb-free, space- Embedded Control Systems saving 5-pin SOT23 surface mount package and is Industrial Controllers specified over the -40 to +85C temperature range. Intelligent Instruments Notebook Computers Portable Electronics Power-On Reset Circuits Typical Application V DD VCC VDD RESET RESET INPUT (RESET) P AAT351x WDI I/O LINE GND Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 1 202243A Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice. August 8, 2012 DATA SHEET AAT3510/3515/3517/3518 Micropower P Reset with Watchdog Timer Pin Descriptions Pin Number Symbol Function AAT3510 AAT3515 AAT3518 AAT3517 AAT3510/15: RESET output goes low whenever V falls below the DD reset threshold. CMOS push-pull output. AAT3517: RESET output goes low whenever V falls below the reset DD threshold. Open drain output. Connect a pull-up resistor to any supply 1 1 1 RESET voltage up to 5.5V. AAT3518: 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. 2 2 2 GND Ground connection pin. RESET active-high output. This CMOS push-pull signal is the logical N/A 3 3 RESET inverse of RESET. 3 4 N/A MR 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 4 N/A 4 WDI the duration of the watchdog timer period. 5 5 5 VCC Input voltage pin. Pin Configuration 5-lead SOT23 (Top View) 5 1 RESET VCC 2 GND 3 4 MR WDI AAT3510 AAT3517 5-lead SOT23 5-lead SOT23 (Top View) (Top View) 1 5 1 5 VCC VCC RESET RESET 2 2 GND GND 3 3 4 4 MR WDI RESET RESET AAT3515 AAT3518 Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 202243A Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice. August 8, 2012