el7641 Intersil Corporation, el7641 Datasheet - Page 6

• Manufacturer Part Number: el7641
• Description: Tft-lcd Dc/dc With Integrated Amplifiers
• Manufacturer: Intersil Corporation

Pin Descriptions
PIN NAME
AGND
PGND
BGND
COMP
DRVP
DRVN
OUT1
NEG1
POS1
OUT2
NEG2
POS2
POS3
NEG3
OUT3
POS4
NEG4
OUT4
POS5
NEG5
OUT5
COM
DRN
SRC
REF
SUP
FBN
FBP
DEL
CTL
FB
LX
IN
EL7642
10
12
13
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
-
6
EL7641
10
15
16
17
14
21
22
23
24
25
26
27
28
29
30
31
32
11
1
2
3
4
5
6
7
8
9
-
-
-
-
-
-
EL7640, EL7641, EL7642
EL7640
11
14
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
-
-
-
-
-
-
-
-
-
-
-
-
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 4 non-inverting input
Operational amplifier 4 inverting input
Operational amplifier 4 output
Operational amplifier 5 non-inverting input
Operational amplifier 5 inverting input
Operational amplifier 5 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
PIN FUNCTION
February 22, 2006
FN7415.2