Specifications

Si3216
112 Rev. 1.0
Not Recommended
f
o
r N
e
w
D
e
si
g
n
s
24 28 ITIPP Positive TIP Current Control.
Analog current output driving Q1.
25 29 ITIPN
Negative TIP Current Control.
Analog current output driving Q4.
26 30 VDDD
Digital Supply Voltage.
Digital power supply for internal digital circuitry.
27 31 GNDD
Digital Ground.
Ground connection for internal digital circuitry.
28 32 TEST
Test.
Enables test modes for Silicon Labs internal testing. This pin should always be tied
to ground for normal operation.
29 33 DCFF
DC Feed-Forward/High Current General Purpose Output.
Feed-forward drive of external bipolar transistors to improve dc-dc converter
efficiency.
30 34 DCDRV
DC Drive/Battery Switch.
DC-DC converter control signal output which drives external bipolar transistor.
31 35 SDITHRU
SDI Passthrough.
Cascaded SDI output signal for daisy-chain mode.
32 36 SDO
Serial Port Data Out.
Serial port control data output.
33 37 SDI
Serial Port Data In.
Serial port control data input.
34 38 SCLK
Serial Port Bit Clock Input.
Serial port clock input. Controls the serial data on SDO and latches the data on SDI.
Pin #
QFN
Pin #
TSSOP
Name Description