參數(shù)資料
型號: ISL97522
廠商: Intersil Corporation
英文描述: 4-Channel TFT-LCD Supply
中文描述: 4通道的TFT - LCD電源
文件頁數(shù): 8/20頁
文件大小: 418K
代理商: ISL97522
8
FN7445.0
December 13, 2006
Pin Descriptions
PIN #
PIN NAME
PIN DESCRIPTION
1
DRVN
Negative LDO base drive; open drain of an internal P-Channel MOSFET.
2
DELB
Active low control output for optional delay control for external A
VDD
P-Channel FET; when fault is detected, this pin
goes to high.
3
FBW
Negative LDO voltage feedback input pin; regulates to 0.2V nominal.
4
VCC1
Supply input, connect to V
IN
.
5
FBB
A
VDD
regulator voltage feedback input pin; regulates to 1.2V nominal.
6
ISADJB
Current feedback adjust for A
VDD
.
7
ILADJB
With a resistor connected from this pin to GND sets the current limit of the external N-channel FET for A
VDD.
8
CINTB
A
VDD
integrator output, connect 2.2nF to analog GND.
9
DRVB
Gate driver output for the external N-Channel switch.
10
PGNDB
Power GND for A
VDD
.
11
VHIB
Internal Drive of Boost controller, Connect to VDCP.
12
NC
13
ISINB
Sense the drain voltage of the external N-channel FET and connected to the internal current limit comparator.
14
VIN
Main supply input.
15
EN
Enable pin; high enable, low disabled.
16
VHIL
V
LOGIC
boost strap mode.
17
LX
V
LOGIC
switch connection.
18
DRVL
Gate driver output for external N-channel switch.
19
PGNDP
Power GND.
20
FBL
V
LOGIC
regulator voltage feedback pin; regulates to 1.2V nominal.
21
ILADJL
With resistor connected from this pin to GND sets the current limit of the external N-channel FET.
22
CINTL
V
LOGIC
integrator output, connect 2.2nF to analog GND.
23
ISADJL
Current feedback adjust for V
LOGIC
.
24
VDC
Positive supply for all internal analog circuits.
25
VDCP
Positive supply for external N-Channel FET gate drives.
26
NC
27
DRVP
Positive LDO base drive; open drain of an internal N-Channel MOSFET.
28
NC
29
ACGND
Low noise signal ground.
30
VREF
Bandgap voltage bypass terminal; bypass with a 0.1μF to analog GND; can be used as charge pump reference.
31
FBP
Positive LDO voltage feedback input pin; regulates to 1.2V nominal.
32
CC2
Supply input, connect to V
IN
.
33
CDLY
With a capacitor connect from this pin to GND, sets the delay time for start-up sequence and fault detection timeout.
34
CTL
Input control for switch output.
35
ENL
Enable pin for V
LOGIC
high enable; low disabled.
36
DRN
Lower reference voltage for switch output.
37
COM
Switch output; when CTL = 1, COM is connected to SRC through a 15
Ω
resistor, when CT: = 0, COM is connected
to DRN through a 30
Ω
resistor.
38
SRC
Upper reference voltage for switch output.
ISL97522
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