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參數(shù)資料
| 型號(hào)： | ML4877 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | LCD Desktop Backlight Lamp Driver(LCD桌面背光燈驅(qū)動(dòng)器) |
| 中文描述： | 液晶背光燈驅(qū)動(dòng)器桌面（液晶桌面背光燈驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 2/11頁 |
| 文件大?。?/td> | 288K |
| 代理商： | ML4877 |
ML4877
2
PIN CONFIGURATION
PIN DESCRIPTION
PIN
NAME
FUNCTION
1
LEA+
Positive input for lamp error amp
2
AZR
Connection to gate of external FET for
high voltage regulator. Internally a
zener diode to ground.
3
SS CAP
Connection of optional external soft
start capacitor
4
R
T
Oscillator timing resistor
5
VREF
Voltage reference output
6
L ILIM
Input to current limit amplifier
7
LEA-
Negative input for lamp error
amplifier
8
LEA OUT
Output of lamp error amplifier.
External compensation capacitor
connects between this pin and LEA.
9
C
T
Oscillator timing capacitor
10
L RTD
Input to resonant threshold detector
PIN
NAME
FUNCTION
11
B SYNC
OUT
Output of MOSFET driver to gate of
synchronous FET catch diode.
12
HVDD
Battery power input to linear regulator
13
VDD
Output of linear regulator. Positive
power for IC.
14
L GATE1
Output of MOSFET driver. Connection
to gate of one side of inverter FET
drive pair.
15
ON/OFF
Logic input for chip
16
L GATE2
Output of MOSFET driver. Connection
to gate of one side of inverter FET
drive pair.
17
PGND
Power ground
18
GND
Signal ground
19
B ON
Connection to primary side of gate
pulse transformer
20
B OFF
Output of MOSFET driver. Connection
to gate of FET that disables the input
power.
B OFF
B ON
GND
PGND
L GATE 2
ON/OFF
L GATE 1
VDD
HVDD
B SYNC OUT
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
LEA+
AZR
SS CAP
RT
VREF
L ILIM
LEA–
LEA OUT
CT
L RTD
TOP VIEW
ML4877
20-Pin SSOP (R20)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4877CR | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:LCD Desktop Backlight Lamp Driver |
| ML4877ER | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:LCD Desktop Backlight Lamp Driver |
| ML4880 | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Portable PC/PCMCIA Power Controller |
| ML4880CS | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Portable PC/PCMCIA Power Controller |
| ML4880ES | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Portable PC/PCMCIA Power Controller |
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