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CAT808NTFI-25T1 Datasheet(PDF) 1 Page - Catalyst Semiconductor |
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CAT808NTFI-25T1 Datasheet(HTML) 1 Page - Catalyst Semiconductor |
1 / 8 page CAT808 © 2006 Catalyst Semiconductor, Inc. 1 Doc. No. 3024 Rev. A Characteristics subject to change without notice GND 2 3 1 OUT VDD NC GND 2 3 1 NC 5 4 OUT VDD 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 APPLICATIONS Battery-Powered Systems Power Supply Monitoring Handheld and Portable Equipment Processor Supervisor Reset 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. 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. For Ordering Information details, see page 7. PIN CONFIGURATION TYPICAL APPLICATION SOT-89 5-Lead Thin SOT-23 Note: The value of the pull-up resistor is not critical OUT SHDN GND IN DC-DC CONVERTER OUT VDD GND Battery Voltage CAT808 10kΩ |
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