Microchip HV264DB1 Bedienungsanleitung
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Supertex inc.
Supertex inc.
www.supertex.com
HV264DB1
Doc.# DSDB-HV264DB1
NR060613
Quad, High Voltage
Amplier Array Demo Board
Specications
The Supertex HV264TS-G is a quad high voltage amplier
array device in a 24-pin TSSOP package. The HV264DB1
demo board provides a platform to evaluate this device.
This demoboard requires only a minimum setup including
a VDDlow voltage supply, a VPP high voltage supply, and
a signal source. The demoboard provides the input/output
connections through two 6-pin headers.
For detailed electrical performance, please refer to the
HV264 datasheet.
General Description
Board Layout
Parameter Value
VPP high voltage supply200V
VDD
low voltage supply4.5 to 5.5V
HVOUT output voltage swing1.0V to VPP - 10V
VIN Input signal range0 to VDD - 1.5V
AV
closed loop gain66.7V/V with internal
feedback resistors
Typical SR output slew rate9.0V/µs
IPEAK output peak current3.0mA
Power Up/Down Sequence
The device can be damaged due to an improper power up /
down sequence. To prevent damage, please follow the ac-
ceptable power up / down sequences. An external diode
across VPP and VDD in included on the board, where the
anode of the diode is connected to VDD and the cathode is
connected to VPP. Any low current high voltage diode will be
adequate.
Acceptable Power Up Sequences
1) VDD 2) VPP 3) Inputs
1) VDD 2) Inputs 3) VPP
Acceptable Power Down Sequences
1) Inputs, 2) VPP ) VDD
1) VPP ) Inputs) VDD
Gain Setting
The HV264 quad amplier array has the internal built-in gain
setting resistors available with a xed gain of 66.7V/V +/- 5%.
External gain setting resistors can be used for applications
that require better tolerance or a different closed loop gain. An
example is shown in the following schematics. Fig. 1 shows
the schematics of the demoboard. The external resistor val-
ues and tolerances can be selected to meet different gain set-
ting and precision requirements as shown in Fig. 2.
Pin NameDescription
VPPHigh voltage positive supply
VDDLow voltage positive supply
IN1 to IN4Amplier inputs
HVOUT1 to HVOUT4Amplier outputs
GNDDevice ground
Produktspezifikationen
| Marke: | Microchip |
| Kategorie: | Nicht kategorisiert |
| Modell: | HV264DB1 |
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