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廬

L6902

1A CONSTANT CURRENT BATTERY CHARGER

PRODUCT PREVIEW

UP TO 1A BATTERY CHARGER

OPERATING INPUT VOLTAGE FROM 8V TO

36V

PRECISE 3.3V (鹵2%) REFERENCE VOLT-

AGE

5% CHARGING CURRENT ACCURACY

OUTPUT VOLTAGE ADJUSTABLE FROM

1.235V TO 34V

250KHz INTERNALLY FIXED FREQUENCY

VOLTAGE FEEDFORWARD

ZERO LOAD CURRENT OPERATION

INTERNAL CURRENT LIMITING

PROTECTION AGAINST FEEDBACK DIS-

CONNECTION

THERMAL SHUTDOWN

APPLICATION

CHARGES FOR NiCd, NiMH AND LITHIUM

BATTERIES

SIMPLE, SMALLER & EFFICIENT STEP-

DOWN CONVERTERS

BATTERY EQUIPPED SYSTEMS

TEST AND APPLICATION CIRCUIT

SO8

ORDERING NUMBERS:

L6902D

MINIDIP

L6902N

DISTRIBUTED POWER SUPPLY

MOBILE PC & SUBNOTEBOOK

DESCRIPTION

The L6902 is a complete and simplest IC for bat-

teries charging application.

Based a voltage mode structure it is a step down

switching converter integrating a current error am-

Vi = 8 V t o 3 6 V

5

8

L6902

6

V

r ef

C

1

10 0

R

1

5K

C

2

22 n

( 3 . 3 V)

Vo ( A d j )

1

4

7

3

2

D

1

L

1

56

R

s en s e

0.1

C

3

47

Ocober 2000

This is preliminary information on a new product now in development. Details are subject to change without notice.

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L6902N相關(guān)型號PDF文件下載

• 型號
  版本
  描述
  廠商
  下載
• L6902
  英文版
  1A CONSTANT CURRENT BATTERY CHARGER
  ETC
  L6902
• L6902D
  英文版
  UP TO 1A SWITCHING REGULATOR WITH ADJUSTABLE CURRENT LIMIT
  
  L6902D
• L6902D
  英文版
  Buck Switching Regulator IC Positive Adjustable 1.235V 1 Out...
  L6902D
• L6902D
  英文版
  UP TO 1A SWITCHING REGULATOR WITH ADJUSTABLE CURRENT LIMIT
  STMICROELECTRON...
  L6902D
• L6902N
  英文版
  Analog IC
  ETC
  L6902N
• L6902D_04
  英文版
  UP TO 1A SWITCHING REGULATOR WITH ADJUSTABLE CURRENT LIMIT
  STMICROELECTRON...
  L6902D_04
• L6902D013T...
  英文版
  UP TO 1A SWITCHING REGULATOR WITH ADJUSTABLE CURRENT LIMIT
  
  L6902D013TR
• L6902D013T...
  英文版
  Buck Switching Regulator IC Positive Adjustable 1.235V 1 Out...
  L6902D013TR
• L6902D013T...
  英文版
  UP TO 1A SWITCHING REGULATOR WITH ADJUSTABLE CURRENT LIMIT
  STMICROELECTRON...
  L6902D013TR

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