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)
Description
The ISL88001, ISL88002, and 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, and 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. 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. The ISL88001, ISL88002, and ISL88003 devices are specifically designed for low power consumption and high threshold accuracy, making them especially suitable for electronic devices and portable equipment.
Parameters
| Attributes | Value |
|---|---|
| Voltage Monitors (#) | 1 |
| Input Voltage (Min) (V) | 1.8 |
| Input Voltage (Max) (V) | 5.5 |
| Adjustable POR Timeout | No |
| Adjustable Vtrip | No |
| Fixed Vtrip | Yes |
| Interface | N/A |
| Manual Reset | No |
| Monitor Voltage (Max) (V) | 5 - 5 |
| WDT | No |
| TwinPin™ MR#/RST# | No |
| Reset Output Type | Active Low (Open Drain) |
| VMONITOR | 5.0, 4.5, 3.3, 3.0, 2.7, 2.5, 2.3, 1.8, 1.7 |
| Advanced Features | Ultra Low 160nA Current |
| Qualification Level | Standard |
Application Block Diagrams
 | Wi-Fi-Connected Retail Scale Wi-Fi 6 retail scale offers fast transactions, stable connections, compact design, and efficient power use. |
 | Mbed-Based Image Processing System The Mbed-based system enables rapid prototyping for smart cameras with AI, IoT, and sensor integration. |
 | ROS Body Controller for Robotic Systems The centralized ROS body controller simplifies robot coordination with standardized control and efficient communication. |
 | Smart Terminal Backup Power System Smart backup power system with wide input voltage, efficient supercapacitor use, and full energy control. |
 | Low Power Backup with Supercapacitor This system uses a supercapacitor to offer reliable power management, as an alternative to batteries. |
 | Power System for Smart Power Meter with 4G Module Smart power meter system ensures always-on operation with efficient energy use. |
 | Smart Grid Fault Indicator Unit Low-power smart grid fault indicator with high-performance MCUs and efficient monitoring. |
Additional Applications
- Microprocessor/Microcontroller Systems
- Intelligent Instruments
- Controllers
- Computer Systems
- Portable/Battery-Powered Equipment
- PDA and Hand-Held PC Devices
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[RH850/F1KM]External voltage monitoring
Hello team In order to implement external voltage monitoring mentioned in the Safety Application Note, is there any recommended chip from Renesas? BR. Xianti
Mar 4, 2025
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