LTC4150IMS View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC4150IMS

Coulomb Counter/Battery Gas Gauge

Linear Technology 

LTC4150

BLOCK DIAGRAM

CHARGER

RSENSE

IBAT

LOAD

VDD

8

SENSE+

2k

1

CF+

3

CF

4

CF–

2k

2

SENSE–

GND 7

REFHI

S3

1.7V

+

100pF

S1

200k

–

–

200k

AMPLIFIER

+

+

200k

–

S2

REFLO

0.95V

CONTROL

LOGIC

POLARITY

DETECTION

OFLOW/

UFLOW

COUNTER

UP/DN

SQ

R

Figure 1. Block Diagram

10 INT

9 CLR

CHARGE

6 POL

DISCHARGE

5 SHDN

4150 F01

TIMING DIAGRAMS

CLR

50% 50%

tCLR

INT

4150 F02

Figure 2. CLR Pulse Width to Reset INT,

CLR and INT Not Connected

INT

50% 50%

tINT

4150 F03

Figure 3. INT Minimum Pulse Width, CLR and INT Connected

4150fc

6

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