元器件交易网

AAT3526/7/8

MicroPower Supervisory Circuit

with Manual Reset

1. Stresses above those listed in Absolute Maximum Ratings may cause permanent damage to the device. Functional operation at condi-tions other than the operating conditions specified is not implied. Only one Absolute Maximum Rating should be applied at any one time.2. Mounted on an FR4 board.3526.2006.03.1.6

3

元器件交易网

AAT3526/7/8

MicroPower Supervisory Circuit

with Manual Reset

1. See Ordering Information for factory-trimmed reset thresholds.

4

3526.2006.03.1.6

元器件交易网

AAT3526/7/8

MicroPower Supervisory Circuit

with Manual Reset

3526.2006.03.1.6

5

元器件交易网

AAT3526/7/8

MicroPower Supervisory Circuit

with Manual Reset

Functional Description

General

During start-up, the reset pin on a microprocessorensures that it is fully reset and starts up in a knowncondition. The AAT3526/7/8 series of microproces-sor reset devices monitor the supply voltage to a

microprocessor and assert a reset signal wheneverthe VCCvoltage falls below a factory-programmedthreshold. This threshold is accurate within ±1.5%at 25ºC and within ±2.5% over the entire operatingtemperature range. The reset signal remainsasserted for a minimum of 150ms after VCChasrisen above the threshold, as shown in Figure 1.

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3526.2006.03.1.6