DATASHEET ISL88001, ISL88002, ISL88003 FN6174 Rev 2.00 Ultra Low Power 3 Ld Voltage Supervisors in SC-70 and SOT-23 Packages May 29, 2012 The ISL88001, ISL88002, ISL88003 supervisors are Features extremely low power 160nA voltage supervisors that help to Single Voltage Monitoring Supervisors monitor the power supply voltages in a wide variety of applications. By providing Power-On Reset and supply Fixed-Voltage Options Allow Precise Monitoring of +1.8V, voltage supervision in small 3 Ld SC-70 and SOT-23 +2.5V, +3.0V, +3.3V and +5.0V Power Supplies packages, the ISL88001, ISL88002, ISL88003 devices can Ultra Low 160nA Supply Current help to lower system cost, reduce board space requirements 1.2% Voltage Threshold Accuracy and increase the reliability of systems. 190ms Power-On Reset Timeout The most popular voltage trip points are available for standard power supplies from 1.8V to 5.0V (see Ordering Reset Signal Valid Down to V = 1V DD Information on page 3). These reset threshold voltages are No External Components Necessary accurate to within 1.2% and the reset signal is valid down to 1V. Active high and active low reset outputs are available in Immune to Power-Supply Transients push-pull and open drain configurations (see Functional Available in Small 3 Ld SC-70 and 3 Ld SOT-23 Pb-free Block Diagrams on page 2). Packages The ISL88001, ISL88002, ISL88003 devices are specifically Pin Compatible with MAX803, MAX809, MAX810 designed for low power consumption and high threshold Pb-Free (RoHS Compliant) accuracy, making them especially suitable for electronic devices and portable equipment. Applications Microprocessor/Microcontroller Systems Pinouts Intelligent Instruments ISL88001, ISL88002 (3 LD SC-70, 3 LD SOT-23) Controllers TOP VIEW Computer Systems GND 1 Portable/Battery-Powered Equipment ISL88001 PDA and Hand-Held PC Devices 3 V DD ISL88002 RST 2 ISL88001 has a push-pull RST output ISL88002 has an open-drain RST output ISL88003 (3 LD SC-70, 3 LD SOT-23) TOP VIEW GND 1 3 V ISL88003 DD RST 2 ISL88003 has a push-pull RST output FN6174 Rev 2.00 Page 1 of 11 May 29, 2012ISL88001, ISL88002, ISL88003 Pin Descriptions PIN ISL88001 ISL88002 ISL88003 PIN NAME PIN FUNCTION 1 1 GND Ground IC reference. 2RST The RST pin is an active-low reset output that is pulled to GND (LOW) when reset is asserted. The ISL88001 is push-pull while the ISL88002 is open drain. 2 RST The RST pin is a push-pull active-high reset output that is pulled to V (HIGH) when reset DD is asserted. 33 V Supply Voltage and Monitored Input. The V pin is the IC power supply terminal and also DD DD the monitored input. Functional Block Diagrams V DD V DD RST POR RST POR V V DD REF V V DD REF GND GND ISL88001 ISL88002 V DD POR RST V V DD REF GND ISL88003 FN6174 Rev 2.00 Page 2 of 11 May 29, 2012