SNOSCS3A – SEPTEMBER 2013 – REVISED OCTOBER 2013
PINOUT
TEMP+
TEMP-
CBY
INB
21
INA
20
24
P1
P2
P3
P4
P5
GND
LED
1
2
3
4
5
6
7
10
11
12
8
9
DAP
(GND)
23
22
19
18
17
16
15
14
13
GND
CFA
CFB
NC
GND
NC
SENSE2+/SWIF RX
Figure 4. LMP91300 WQFN Pinout
Table 1. LMP91300 WQFN Pin Functions
Pin Number
1-5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
DAP
Name
P1-5
GND
LED
V+/EXT E
EXT B
SWDRV
SENSE-
SENSE1+
SENSE2+/SWIF RX
NC
GND
NC
CFB
CFA
GND
INA
INB
TEMP-
TEMP+
CBY
DAP
Type
G
G
O
P
P
O
I
I
I
N/A
G
N/A
I
I
G
I
I
G
I
O
G
Description
Connect to Ground
Board Ground
LED Driver Output
Chip V+/External transistor, emitter
External transistor, base
Drive for external transistor switch
Negative Sense Input
Positive Sense Input
Positive Sense Input and Single Wire Interface receive
No connect
Board ground
No connect
Filter capacitor value based on sensor oscillation frequency
Filter capacitor value based on sensor oscillation frequency
Board ground
External LC tank
External LC tank
NTC ground, connect to board ground
Analog Temperature Sensor Input
Bypass capacitor (56nF)
Connect to Ground
SENSE1+
SWDRV
V+/EXT E
SENSE-
EXT B
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