ISL78022_14 Datasheet, PDF (6/19 Pages) Intersil Corporation – Automotive Grade TFT-LCD DC/DC with Integrated Amplifiers

Pin Descriptions
PIN NAME
SRC
REF
AGND
PGND
ISL78022
1
2
3
4
OUT1
5
NEG1
6
POS1
7
OUT2
8
NEG2
9
POS2
10
BGND
11
POS3
12
NEG3
-
OUT3
13
SUP
14
POS4
15
NEG4
16
OUT4
17
POS5
18
NEG5
19
OUT5
20
LX
21
IN
22
FB
23
COMP
24
FBP
25
DRVP
26
FBN
27
DRVN
28
DEL
29
CTL
30
DRN
31
COM
32
ISL78020, ISL78022
ISL78020
1
2
3
4
5
6
7
-
-
-
11
-
-
-
14
-
-
-
-
-
-
21
22
23
24
25
26
27
28
29
30
31
32
PIN FUNCTION
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
6
FN6386.3
December 23, 2013