參數(shù)資料
型號: AN8041S
廠商: PANASONIC CORP
元件分類: 模擬信號調(diào)理
英文描述: Liquid crystal backlight control IC
中文描述: SPECIALTY ANALOG CIRCUIT, PDSO16
封裝: PLASTIC, SOP-16
文件頁數(shù): 1/15頁
文件大小: 153K
代理商: AN8041S
Voltage Regulators
AN8041S
Liquid crystal backlight control IC
1
I
Overview
The AN8041S is an inverter control IC for liquid
crystal backlight using PWM method. The output
voltage of DC-DC converter and the current of cath-
ode-ray tube can be controlled by using two error
amplifiers, so that the system is designed easily.
Since the n-channel MOSFET can be directly
driven, it is possible to construct a highly effective
power supply.
I
Features
Operating supply voltage: 3.6 V to 34 V
*
Totem pole output circuit: Output current of
±
500 mA
Built-in bootstrap circuit
N-channel power MOSFET can be directly driven
Built-in two error amplifier circuits allow both the
voltage and current control
Incorporating on/off functions (active-high control input, standby mode current is 5
μ
A or less)
Built-in timer latch short-circuit protection circuit
Maximum oscillation frequency: 500 kHz
Note)*: The voltage is limited to the range of 3.6 V to 17 V if used in a step-down circuit.
I
Applications
LCD displays, digital still cameras, and PDAs
I
Block Diagram
SOP016-P-0225A
Unit: mm
0.3
(0
°
to 10
°
)
(
Seating plane
10.1±0.3
4
6
1
8
16
9
1.27
(0.605)
Seating plane
0.40±0.25
0
1
CB
14
Out
13
FB1
IN
+
1
IN
1
8
6
7
S.C.P.
5
Off
16
D
4
V
R
1
G
1
S.C.P.
comp.
Q
Q
R
S
V
C
1
Bootstrap
C
3
Constant
current source
R
2
OSC
V
REF
2.57 V
On/off
active-high
PWM comp.
Error amp. 2
U.V.L.O.
Q
R
S
Latch
Error amp. 1
FB2
9
IN
+
2
IN
2
11
10
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