HV506PG SUTEX [Supertex, Inc], HV506PG Datasheet - Page 8

• Manufacturer Part Number: HV506PG
• Description: 275V 40-Channel Row Driver with SCR Outputs
• Manufacturer: SUTEX [Supertex, Inc]

To drive a TFEL row with a negative pulse: The desired sink SCR
is enabled and V
switch. After holding the output at the -HV level, the switch is
opened in order to set the sink SCR current to zero. The row is
*
HV Switching Waveforms and Operation
Notes internal device handling current flow. Refer to Typical Output Circuit Connections for schematic.
Output n+1
SS
Output n
is connected to -HV via a current limited
V
SS
High Impedance
SCR
- HV
Sink*
Drive Current
Disabled
t
D
OFF
2
*
(Sink SCR)
0V
t
OFF
+ HV - (V
(D
2
)
Source*
SCR
DD
8
- V
Drive Current
Disabled
SS
then discharged through a discharge diode when D
to GND. The application of a positive pulse to a row operates in
a similar manner using the selected source SCR and D
)
D
High Impedance
1
(Source SCR)
*
t
OFF
t
OFF
(D
1
)
High Impedance
2
is switched
1
HV506
.