TPS65142
www.ti.com
SLVSAX5 –JULY 2011
DEVICE INFORMATION
PIN ASSIGNMENT
TOP VIEW (6×3 32-PIN QFN PACKAGE)
27
26
25
24
23
22
21
20
19
18
17
1
2
DRVP
FBP
SW
VIN
3
AGND
DRVN
FBN
VGH
4
VGHM
RE
5
6
VDET
XAO
REF
VFLK
VDPM
IFB 3
IFB 2
IFB 1
DCTRL
PGND
(ePAD)
7
8
9
IFB 4
IFB 5
EN
10
11
PIN FUNCTIONS
PIN
NAME
SW
I/O
DESCRIPTION
NO.
1
Switch pin of the AVDD boost converter
Input supply pin
VIN
2
I
AGND
DRVN
FBN
3
Analog ground
4
O
I
Voltage driver of the negative charge pump
Negative charge pump feedback pin
Reset IC threshold pin (Voltage divider)
5
VDET
XAO
6
I
7
O
O
I
Reset IC output pulling down XAO pin when active.
Reference voltage for the negative charge pump
Channel 4 of the WLED backlight current sink
Channel 5 of the WLED backlight current sink
Backlight enable input
REF
8
IFB4
9
IFB5
10
11
12
13
14
15
16
17
18
I
EN
I
IFB6
I
Channel 6 of the WLED backlight current sink
The backlight boost converter switching node
Input of the backlight boost converter
BL_SW
VBAT
VO
I
O
I
The output of the backlight boost converter
WLED current sink level programming input
Backlight PWM dimming control input
ISET
DCTRL
IFB1
I
I
Channel 1 of the WLED backlight current sink
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