CAT808

CAT808 Low-Power Precision Voltage Detector FEATURES „ Ultra Low Current Consumption 2.4µA „ Accurate Voltage Detection Threshold „ Fine Voltage Detection Threshold Resolution „ Active Low Open Drain Output „ Available in 5-pin TSOT- 23 and 3-pin SOT- 89 RoHS compliant packages „ Industrial temperature range -40°C to +85°C The CAT808 open-drain output is active low until the VDD voltage exceeds the detection threshold. A low hysteresis is built into the device to minimize output “chatter”, while VDD passes through the detection threshold, and the output transitions high. After the CAT808 asserts the output high condition, it continues to monitor VDD until it drops below the detection threshold, when the output goes low until VDD once again exceeds the detection threshold. DESCRIPTION The CAT808 is a high-precision voltage detector designed for monitoring single cell and multi-cell batteries. Voltage detection thresholds between 2.0V and 3.2V are provided with 0.1V resolution and ±3.0% accuracy. APPLICATIONS „ Battery-Powered Systems „ Power Supply Monitoring „ Handheld and Portable Equipment „ Processor Supervisor Reset www.DataSheet4U.com For Ordering Information details, see page 7. PIN CONFIGURATION SOT-89 OUT 1 VDD 2 GND 3 TYPICAL APPLICATION 5-Lead Thin SOT-23 VDD IN CAT808 OUT DC-DC CONVERTER SHDN GND OUT OUT 1 VDD 2 GND 3 5 NC Battery Voltage 10kΩ 4 NC GND Note: The value of the pull-up resistor is not critical © 2006 Catalyst Semiconductor, Inc. Charact...