參數(shù)資料
型號: TLED2043
廠商: Texas Instruments, Inc.
英文描述: 4-CHANNEL WHITE LED DRIVER(四通道白色LED驅(qū)動器)
中文描述: 4通道白光LED驅(qū)動器(四通道白色發(fā)光二極管驅(qū)動器)
文件頁數(shù): 1/15頁
文件大?。?/td> 221K
代理商: TLED2043
TLED2043
4-CHANNEL WHITE LED DRIVER
SLDS147C – JUNE 2002 – REVISED NOVEMBER 2002
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Integrated FETs with Low R
DS-ON
. . .
6
Max
Current-Controlled Output Drives That Are
Proportional to Battery Voltage to Save
Power
Integrated Power-Supply Switches for
Power Savings During OFF State . . .
1
μ
A Max
Up to 89% Efficiency
Applications: LCD Display for Cell Phones,
PDAs, Palmtops, etc.
terminal assignments
1
2
3
4
A
D1
S1
S4
D4
B
VIN1
IN+
VOUT2
VOUT1
NC
SW
VIN2
GND
C
VIN3
IN–
D
FB
VOUT3
S3
E
D2
S2
D3
NC – No internal connection
TERMINAL
DESCRIPTION
D1, D2, D3, D4
Drain of FETs 1, 2, 3, and 4, respectively
S1, S2, S3, S4
Source of FETs 1, 2, 3, and 4, respectively
VIN1, VIN2, VIN3
VOUT1, VOUT2, VOUT3
Input of switches 1, 2, and 3, respectively
Output of switches 1, 2, and 3, respectively
SW
Operates switches 1, 2, and 3 in unison
Low input = switches are closed
High input or Open = switches are open
IN+
Noninverting input to current-control amplifier
IN–
Inverting input to current-control amplifier
FB
Provides feedback connection to IN– of
current-control amplifier
GND
Device ground
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright
2002, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
S1
D1
SW
V
IN1
V
OUT1
IN+
IN–
FB
S2
D2
S4
D4
V
IN2
V
OUT2
GND
V
IN3
V
OUT3
NC
S3
D3
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
PW PACKAGE
(TOP VIEW)
NC – No internal connection
GQN PACKAGE
(TOP VIEW)
1
2
3
4
A
B
C
D
E
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