LP3958 Datasheet, PDF (2/36 Pages) National Semiconductor (TI) – Lighting Management Unit with High Voltage Boost Converter

LP3958
SNVS423C – JANUARY 2006 – REVISED MARCH 2013
CONNECTION DIAGRAMS
25-Bump Thin DSBGA Package, Large Bump, Package Number YZR0025
www.ti.com
5
KEY3
KEY2
KEY1
FB
SW
4
GND_
KEY
IKEY
SCL
NRST
GND
_SW
3
GPIO
[0]
GPIO
[2]
SDA VDDIO VDD2
2
GPIO
[1]
VREF
VDD1
GNDT
GND_
WLED
1
IRT
GND
VDDA
SUB
MAIN
A
B
C
D
E
Figure 1. Top View
SW
FB
KEY1
KEY2
KEY3
5
GND
_SW
NRST
SCL
IKEY
GND_
KEY
4
VDD2 VDDIO
SDA
GPIO
[2]
GPIO
[0]
3
GND_
WLED
GNDT
VDD1
VREF
GPIO
[1]
2
MAIN
SUB
VDDA
GND
IRT
1
E
D
C
B
A
Figure 2. Bottom View
2
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