AAT3500/AAT3501 MicroPowera a 3-Pin Microprocessor Reset Features The AAT3500 family of Microprocessor Reset Circuits provides the ultimate in versatility, allowing system designers full customization of the Reset function without any additional components. Threshold voltage, reset active period and output drive type are all factory programmed options. *= *= *= *= *= The AAT3501 includes an over-temperature shutdown function in addition to all of the features included in the AAT3500. *= *= Tight voltage tolerance: 1.5% Low quiescent current: 3A 32 voltage options from 1.5V to 5.0V 8 Reset active period options 3 output options: *= Open drain *= Inverting *= Non-inverting Low Tempco: 100ppm/C 3-pin SOT-23 package The AAT3500/AAT3501 are available in the space saving 3-pin SOT-23 surface mount package. Applications *= *= *= *= *= *= Computers Industrial Controllers Portable Electronics Intelligent Instruments Critical P and C Supply Monitoring Power-On reset circuits Pin Configuration Typical Application VDD VDD VDD AAT3500 AAT3501 P RESET (RESET) 3-lead SOT-23 (Top View) GND 1 RESET 2 RESET INPUT 3 GND Advanced Analogic Technologies, Inc. 1250 Oakmead Pkwy, Suite 310, Sunnyvale, CA 94086 (408)524-9684 Fax (408)524-9689 4-1 VDD TM Advanced Information General Description PowerManager AAT3500/AAT3501 MicroPowera a 3-Pin Microprocessor Reset Absolute Maximum Ratings (TA=25C unless otherwise noted) Symbol VIN TJ JA PD TLEAD Description Input Voltage Operating Junction Temperature Range Maximum Thermal Resistance (SOT-23-3) Maximum Power Dissipation (SOT-23-3) Maximum Soldering Temperature (at leads, 10 sec) Value Units 6 -40 to 150 260 380 300 V C C/W mW C Note: 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. Electrical Characteristics (TJ=25C unless otherwise noted) Symbol VRANGE IDD ISD VTH Description Input Voltage Range Supply Current Shutdown Current Pull-up Internal Resistance RDSON(DN) Pull-down Internal Resistance TRESET TSD THYS TC VDD to Reset Delay Min Reference Voltage Temp Coeff Max V 1 A A VTHNOM +1.5% 200 100 200 100 VTHNOM -1.5% VDD = 1.6V VDD = 5.0V VDD = 1.6V VDD = 5.0V 100mV overdrive mV s 40 TRNOM +35% TRNOM -35% Units 5.5 3 Reset Active Period Over Temp Shutdown Threshold Over Temp Shutdown Hysteresis Typ 1 VDD = 3.0V VIN = 5V, EN = low Reset Threshold Voltage RDSON(UP) TDELAY Conditions s AAT3501 only AAT3501 only 80 20 C C 0C < TA < 70C 100 ppm/C Advanced Analogic Technologies, Inc. 1250 Oakmead Pkwy, Suite 310, Sunnyvale, CA 94086 (408)524-9684 Fax (408)524-9689 4-2