ISL97642 Intersil Corporation, ISL97642 Datasheet - Page 6

• Manufacturer Part Number: ISL97642
• Description: TFT-LCD DC/DC
• Manufacturer: Intersil Corporation

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Pin Descriptions
PIN NAME
COMP
AGND
PGND
BGND
DRVN
OUT1
NEG1
POS1
OUT2
NEG2
POS2
POS3
NEG3
OUT3
POS3
NEG3
OUT3
DRVP
COM
SRC
SUP
DRN
REF
FBP
FBN
DEL
CTL
NC
NC
NC
LX
FB
IN
ISL97642
6
10
15
16
17
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
11
1
2
3
4
5
6
7
8
9
Upper reference voltage for switch output
Internal reference bypass terminal
Analog ground for boost converter and control circuitry
Power ground for boost switch
Operational amplifier 1 output
Operational amplifier 1 inverting input
Operational amplifier 1 non-inverting input
Operational amplifier 2 output
Operational amplifier 2 inverting input
Operational amplifier 2 non-inverting input
Operational amplifier ground
Operational amplifier 3 non-inverting input
Operational amplifier 3 inverting input
Operational amplifier 3 output
Amplifier positive supply rail. Bypass to BGND with 0.1µF capacitor
Operational amplifier 3 non-inverting input
Operational amplifier 3 inverting input
Operational amplifier 3 output
Main boost regulator switch connection
Main supply input; bypass to AGND with 1µF capacitor
Main boost feedback voltage connection
Error amplifier compensation pin
Positive LDO feedback connection
Positive LDO transistor drive
Negative LDO feedback connection
Negative LDO transistor driver
Connection for switch delay timing capacitor
Input control for switch output
Lower reference voltage for switch output
Switch output; when CTL = 1, COM is connected to SRC through a 15Ω resistor; when CTL = 0,
COM is connected to DRN through a 30Ω resistor
ISL97642
PIN FUNCTION
June 18, 2007
FN6436.0