SI8250 Datasheet, PDF (23/30 Pages) Silicon Laboratories – DIGITAL POWER CONTROLLER

7. Pin Descriptions—Si8250/1/2
32-pin LQFP
Si8250/1/2
28-pin QFN
RST/C2CK 1
IPK ₂
VSENSE ₃
GNDA 4
VDDA 5
VREF 6
P1.0/VIN/AIN0 7
P1.1/AIN1 8
Si8250/1/2
Top View
24 P0.0
23 P0.1
22 P0.2
21 P0.3 / XCLK
20 P0.4
19 P0.5
18 P0.6
17 P0.7
GND
RST / C2CK 1
IPK 2
VSENSE 3
GND 4
VDD 5
VREF 6
P1.0/VIN/AIN0 7
Si8250/1/2
Top View
GND
21 P0.1
20 P0.2
19 P0.3/XCLK
18 P0.4
17 P0.5
16 P0.6
15 P0.7
Name
RST/C2CK
IPK
VSENSE
GND
GNDA
VDD
VDDA
VREF
P1.0/VIN or AIN0
P1.1/AIN1
P1.2/AIN2
P1.3/AIN3
P1.4/AIN4
GND
VDD
P1.5/AIN5
P1.6/AIN6
P1.7/ AIN7/C2D
Figure 12. Example Pin Configurations
Table 17. Pin Descriptions
QFN-28
Pin #
1
2
3
4
—
5
—
6
7
8
9
10
11
—
—
12
13
14
LQFP-32
Pin#
1
2
3
—
4
—
5
6
7
8
9
10
11
12
13
14
15
16
Type
Description
D I/O
AIN
AIN
AIN
AIN
AIN
AIN
AIN
D I/O or AIN
D I/O or AIN
D I/O or AIN
D I/O or AIN
D I/O or AIN
AIN
AIN
D I/O or AIN
D I/O or AIN
D I/O, DIN or
AIN
Reset input or bidirect debug clock
Inductor current input
Output voltage feedback input
Ground
Ground
Power supply input
Power supply input
External voltage reference input
Port 1 I/O or scaled power supply input voltage or
ADC input 0
Port 1 I/O or ADC input 1
Port 1 I/O or ADC input 2
Port 1 I/O or ADC input 3
Port 1 I/O or ADC input 4
Ground
Power supply input
Port 1 I/O or ADC input 5
Port 1 I/O or ADC input 6
Port 1 I/O or ADC input 7 or C2 Data
Preliminary Rev. 0.8
23