SNOSCS3A – SEPTEMBER 2013 – REVISED OCTOBER 2013
1
INA
A
A1
CFA
B
B1
CFB
C
C1
S2+
D
D1
S1+
E
E1
2
INB
A2
P2
B2
P5
C2
S-
D2
SWDRV
E2
3
TEMP+
A3
TEMP-
B3
P4
C3
GND
D3
EXT B
E3
4
CBY
A4
P1
B4
P3
C4
LED
D4
V+/EXT E
E4
4
CBY
A4
P1
B4
P3
C4
LED
D4
V+/EXT E
E4
3
TEMP+
A3
TEMP-
B3
P4
C3
GND
D3
EXT B
E3
2
INB
A2
P2
B2
P5
C2
S-
D2
SWDRV
E2
1
INA
A1
CFA
B1
CFB
C1
S2+
D1
S1+
E1
E
D
C
B
A
Top View
Bottom View
Figure 5. LMP91300 DSBGA Pinout
Table 2. LMP91300 DSBGA Pin Functions
Pin Number
A1
A2
A3
A4
B1
B2
B3
B4
C1
C2
C3
C4
D1
D2
D3
D4
E1
E2
E3
E4
Name
INA
INB
TEMP+
CBY
CFA
P2
TEMP-
P1
CFB
P5
P4
P3
SENSE2+/SWIF RX
SENSE-
GND
LED
SENSE1+
SWDRV
EXT B
V+/EXT E
Type
I
I
I
O
I
G
G
G
I
G
G
G
I
I
G
O
I
O
P
P
Description
External LC tank
External LC tank
Analog Temperature Sensor Input
Bypass capacitor (56nF)
Filter capacitor value based on sensor oscillation frequency
Connect to Ground
NTC ground, connect to board ground
Connect to Ground
Filter capacitor value based on sensor oscillation frequency
Connect to Ground
Connect to Ground
Connect to Ground
Positive Sense Input and Single Wire Interface receive
Negative Sense Input
Board ground
LED Driver Output
Positive Sense Input
Drive for external transistor switch
External transistor, base
Chip V+/External transistor, emitter
4
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