Datasheet > SP6337EK1-L-R-A-C/TR

SP6337EK1-L-R-A-C/TR

更新时间： 2023-08-15 00:00:00

品牌	Logo	应用领域
艾科嘉 - EXAR		光电二极管
页数	文件大小	规格书
33页	1432K
描述
Power Supply Management Circuit, Adjustable, 1 Channel, PDSO8, LEAD FREE, MO-193BA, TSOT-8

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SP6337EK1-L-R-A-C/TR 数据手册

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THEORY OF OPERATION

PFI

WDI

OSC

LOGIC

Band

Gap

Ref

RSTB (RST)

CONTROL

LOGIC

1.25V

0.5V

PFOB

GND

Block Diagram

The SP6336/ 6337 / 6338 family includes a

low-voltage precision bandgap reference,

three precision comparators, an oscillator,

a digital counter chain, a logic control block,

trimmed resistor divider chains and

additional supporting circuitry. The family is

designed to supervise up to 3 independent

supply voltages. V1 and V2 supply inputs

have their resistor dividers on the chip.

Their trip thresholds are factory trimmed.

V3 input allows users to customize an

additional supply threshold to be monitored

bymeansofexternalresistordividers. Each

part is furnished with power fail indication

and watchdog functionalities.

The watchdog timer is serviced internally

during the watchdog timeout period when

WDI is left unconnected. Thus, watchdog

functionality can be disabled via leaving the

WDI input floating.

Jun 4-06 Rev H

SP6336-SP6337-SP6338 Triple µPower Supervisory Circuit

1...3 4 567 8 9...33

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