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DATASHEET
ISL88001, ISL88002, ISL88003
Ultra Low Power 3 Ld Voltage Supervisors in SC-70 and SOT-23 Packages
FN6174 Rev 3.00 Feb 10, 2021
The ISL88001, ISL88002, ISL88003 supervisors are extremely low power 160nA voltage supervisors that help to monitor the power supply voltages in a wide variety of applications. By providing Power-On Reset and supply voltage supervision in small 3 Ld SC-70 and SOT-23 packages, the ISL88001, ISL88002, ISL88003 devices can help to lower system cost, reduce board space requirements and increase the reliability of systems.
The most popular voltage trip points are available for standard power supplies from 1.8V to 5.0V (see “Ordering Information” on page 3). These reset threshold voltages are accurate to within ±1.2% and the reset signal is valid down to 1V. Active high and active low reset outputs are available in push-pull and open drain configurations (see “Functional Block Diagrams” on page 2).
The ISL88001, ISL88002, ISL88003 devices are specifically designed for low power consumption and high threshold accuracy, making them especially suitable for electronic devices and portable equipment.
Pinouts
ISL88001, ISL88002 (3 LD SC-70, 3 LD SOT-23)
TOP VIEW
GND 1
ISL88001 ISL88002
3 VDD
Features
• Single Voltage Monitoring Supervisors • Fixed-Voltage Options Allow Precise Monitoring of +1.8V,
+2.5V, +3.0V, +3.3V, and +5.0V Power Supplies • Ultra Low 160nA Supply Current • ±1.2% Voltage Threshold Accuracy • 190ms Power-On Reset Timeout • Reset Signal Valid Down to VDD = 1V • No External Components Necessary • Immune to Power-Supply Transients • Available in Small 3 Ld SC-70 and 3 Ld SOT-23 Pb-free
Packages • Pin Compatible with MAX803, MAX809, MAX810 • Pb-Free (RoHS Compliant)
Applications
• Microprocessor/Microcontroller Systems • Intelligent Instruments • Controllers • Computer Systems • Portable/Battery-Powered Equipment • PDA and Hand-Held PC Devices
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
ISL88003
3 VDD
RST 2 ISL88003 has a push-pull RST output
FN6174 Rev 3.00 Feb 10, 2021
Page 1 of 15
ISL88001, ISL88002, ISL88003
Pin Descriptions
PIN
ISL88001 ISL88002
ISL88003
1
1
2
PIN NAME GND RST
2
RST
3
3
VDD
Functional Block Diagrams
PIN FUNCTION Ground IC reference. 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. The RST pin is a push-pull active-high reset output that is pulled to VDD (HIGH) when reset is asserted. Supply Voltage and Monitored Input. The VDD pin is the IC power supply terminal and also the monitored input.
VDD
± VREF
POR VDD
RST
VDD
GND
ISL88001
± VREF
POR VDD
RST GND
ISL88002
VDD
POR
± VREF
VDD
ISL88003
RST GND
FN6174 Rev 3.00 Feb 10, 2021
Page 2 of 15
ISL88001, ISL88002, ISL88003
Ordering Information
PART NUMBER (Notes 1, 5)
PART MARKING
(Note 6)
ISL88001IE46Z-T (Note 3) 146
ISL88001IE46Z-T7A (Note 3) 146
ISL88001IE46Z-TK (Note 3) 146
ISL88001IE44Z-T (Note 3) 144
ISL88001IE44Z-T7A (Note 3) 144
ISL88001IE44Z-TK (Note 3) 144
ISL88001IE31Z-T (Note 3) 131
ISL88001IE31Z-T7A (Note 3) 131
ISL88001IE31Z-TK (Note 3) 131
ISL88001IE29Z-T (Note 3) 129
ISL88001IE29Z-T7A (Note 3) 129
ISL88001IE29Z-TK (Note 3) 129
ISL88001IE26Z-T (Note 3) 126
ISL88001IE26Z-T7A (Note 3) 126
ISL88001IE26Z-TK (Note 3) 126
ISL88001IE23Z-T (Note 3) 123
ISL88001IE23Z-T7A (Note 3) 123
ISL88001IE23Z-TK (Note 3) 123
ISL88001IE22Z-T (Note 3) 122
ISL88001IE22Z-T7A (Note 3) 122
ISL88001IE22Z-TK (Note 3) 122
ISL88001IE17Z-T (Note 3) 117
ISL88001IE17Z-T7A (Note 3) 117
ISL88001IE17Z-TK (Note 3) 117
ISL88001IE16Z-T (Note 3) 116
ISL88001IE16Z-T7A (Note 3) 116
ISL88001IE16Z-TK (Note 3) 116
ISL88001IH46Z-T (Note 4) 1H46
ISL88001IH46Z-T7A (Note 4) 1H46
ISL88001IH46Z-TK (Note 4) 1H46
ISL88001IH44Z-T (Note 4) 1H44
ISL88001IH44Z-T7A (Note 4) 1H44
ISL88001IH44Z-TK (Note 4) 1H44
ISL88001IH31Z-T (Note 4) 1H31
ISL88001IH31Z-T7A (Note 4) 1H31
ISL88001IH31Z-TK (Note 4) 1H31
ISL88001IH29Z-T (Note 4) 1H29
ISL88001IH29Z-T7A (Note 4) 1H29
RESET Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST Push-Pull RST
NOMINAL VTHVDD (V)
4.62 4.62 4.62 4.38 4.38 4.38 3.07 3.07 3.07 2.92 2.92 2.92 2.63 2.63 2.63 2.32 2.32 2.32 2.19 2.19 2.19 1.67 1.67 1.67 1.58 1.58 1.58 4.62 4.62 4.62 4.38 4.38 4.38 3.07 3.07 3.07 2.92 2.92
PACKAGE
TEMPERATURE TAPE .