DS273 Просмотр технического описания (PDF) - Maxim Integrated

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производитель

DS273

Cache-Memory Battery-Backup Management IC

Maxim Integrated 

Cache-Memory Battery-Backup Management IC

12V

INPUT

C

VIN

CGATE

STMR

MARGIN

THM

RSET

CBIAS

ENC

CIN

C

REF

DIV

ENS

LO_BATT

CHG1

GATE REGULATOR

0.4Ω MAX

GATE DRIVERS

CHG2

SAFETY TIMER

PRECONDITION

TIMER

INTERNAL

THERMAL SENSE

I

V

CCCV CONTROLLER

0.15Ω

MAX

10kΩ

BIAS

REGULATOR

BATT+

0.3Ω

2.93V REFERENCE

SNS

BATT+

CGND1

CGND2

AGND

CHARGE

FAULT

DONE

AUX

0.3Ω

1.238V

REFERENCE

UVLO

HYSTERESIS

SUPPLY CONTROL 0.6Ω

OCLP

0.7Ω

2MHz PWM

SWITCHING

REGULATOR

OCLN

1.0Ω

DS2731

LX

1MΩ

10pF

VREG

BATT+

4.5:1

SCALER

1MΩ

SGND

C

S

C

3.3V

INPUT

LOAD

S

Figure 2. Block Diagram

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