HV892
Pin Functions
Pin
Name
GND1
VIN
Description
1
Ground for the DC–DC converter. Connect GND1 and GND2 together close to the IC.
Input voltage. Bypass with a 2.2µF capacitor to GND1.
Clock for the I2C interface. The HV892 is a Fast Mode device (fSCL ≤ 400kHz).
2
3
SCL
Serial data for the I2C interface. The HV892 is a write-only device, with a single 8-bit command byte
(AMP, see page 4).
4
SDA
5
6
7
8
9
VDD
GND2
OUT2
OUT1
NC
Externally supplied reference voltage for the I2C logic levels. Connect to the I2C bus supply.
Ground for the IC except the DC-DC converter. Connect GND1 and GND2 together close to the IC.
Outputs of the H-bridge driver. The liquid lens connects between these two pins.
When disabled (AMP = 00h), both of these outputs are held at ground.
Not connected.
High voltage DC output of the internal boost converter. Connect a 4.7nF, 100V ceramic capacitor to
ground close to the IC.
10
HV
Exposed backside pad is at ground potential and should be connected to circuit ground.
5
SIRECTIFIER [ SIRECTIFIER SEMICONDUCTORS ]
