ISL78022_14 Datasheet, PDF (18/19 Pages) Intersil Corporation – Automotive Grade TFT-LCD DC/DC with Integrated Amplifiers

Typical Application Circuit
ISL78020, ISL78022
D11
0.1µF
V_CP
V_IN
(2.6V TO 5.5V)
10µF
C1
10Ω
IN
470nF
V_CN
700Ω
0.1µF _Q21
180Ω COMP
2.2nF
DRVN
V_{NEG R22} 82kΩ
(-8V)
10kΩ
470nF _R21
0.1µF
CONTROL
INPUT
100nF
FBN
REF
CTL
DEL
V_CN
NEG
REG
REF
V_MAIN
V_{GAMMA FB4}
V_GAMMA4
V_{GAMMA SET4}
V_{GAMMA FB2}
V_GAMMA2
V_{GAMMA SET2}
A_VDD
NEG4
OUT4
POS4
-
OP4 ⁺
NEG2
OUT2
POS2
-
OP2 ⁺
D21
0.1µF
D12
0.1µF
0.1µF
L1 6.8µH
BOOST
D1
LX
C2-C3
A_VDD
(9V)
10µFx2
FB
R2
R1
10.2kΩ
PGND
64.9kΩ
R₇ OPEN
C₇ OPEN
POS
REG
GND
DRVP
FBP
700Ω
Q11
V_CP
0.1µF _VON
(24.5V)
R12 _182kΩ
470nF
R11 _9.76kΩ
SRC
SW
CTL
-
+ _OP3
TO GATE
COM _{DRIVER IC}
R₁₀
DRN
1kΩ
R₈
68kΩ
R₉
1kΩ
OUT3
POS3
C₈
0.1µF
V_COM
V_{COM SET}
A_VDD
NEG5
-
+ _OP5
OUT5
POS5
NEG1
-
+ _OP1
OUT1
POS1
V_{GAMMA FB3}
V_GAMMA3
V_{GAMMA SET3}
V_{GAMMA FB1}
V_GAMMA1
V_{GAMMA SET1}
AGND
18
FN6386.3
December 23, 2013