LTC4085EDE-3-TRPBF Ver la hoja de datos (PDF) - Linear Technology

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LTC4085EDE-3-TRPBF

USB Power Manager with Ideal Diode Controller and 3.95V Li-Ion Charger

Linear Technology 

LTC4085-3/LTC4085-4

BLOCK DIAGRAM

VBUS

1

IN

CURRENT LIMIT

ILIM_CNTL

CLPROG

3

IIN

1000 1V +

–CL

CURRENT CONTROL

SOFT-START

ILIM

ENABLE

2k

HPWR

4

500mA/100mA

2μA

DIE TEMP

105°C

IN OUT BAT

TA

PROG

12

100k

WALL

7

ACPR

10

1V

CHG

+–

– 25mV

+

+

4.25V –

SOFT-START2

ICHRG

CHARGE CONTROL

VOLTAGE DETECT

UVLO

BAT_UV

9 VNTC

100k

NTC

8

100k

–

TOO C0LD

+

– NTC

+

TOO HOT

RECHRG

NTCERR

CONTROL LOGIC

HOLD

RESET

+

NTC_ENABLE

2μA

0.1V –

GND

SUSP

CC/CV REGULATOR

CHARGER

ENABLE

OUT

2

+– 25mV

IDEAL_DIODE

25mV

+

GATE

–EDA

13

BAT

14

0.25V

2.9V

BATTERY UVLO

3.85V

RECHARGE

OSCILLATOR

CLK

COUNTER

STOP

C/10 EOC

TIMER

6

CHRG

11

408534 BD

10

408534fb

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