Microchip HV264DB1 Handleiding

Microchip Niet gecategoriseerd HV264DB1

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Supertex inc.
Supertex inc.
www.supertex.com
HV264DB1
Doc.# DSDB-HV264DB1
NR060613
Quad, High Voltage
Amplier Array Demo Board
Specications
The Supertex HV264TS-G is a quad high voltage amplier
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 VDD low 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 supply 200V
VDD
low voltage supply 4.5 to 5.5V
HVOUT output voltage swing 1.0V to VPP - 10V
VIN Input signal range 0 to VDD - 1.5V
AV
closed loop gain 66.7V/V with internal
feedback resistors
Typical SR output slew rate 9.0V/µs
IPEAK output peak current 3.0mA
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 amplier 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 Name Description
VPP High voltage positive supply
VDD Low voltage positive supply
IN1 to IN4 Amplier inputs
HVOUT1 to HVOUT4 Amplier outputs
GND Device ground
Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives
an adequate “product liability indemnification insurance agreement.” does not assume responsibility for use of devices described, and limits its liabilit Supertex inc. y
to the replacement of the devices determined defective due to workmanship. No responsibility is assumed for possible omissions and inaccuracies. Circuitry and
specifications are subject to change without notice. For the latest product specifications refer to the (website: http//wwwSupertex inc. .supertex.com)
©2013 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited. Supertex inc.
1235 Bordeaux Drive, Sunnyvale, CA 94089
Tel: 408-222-8888
www.supertex.com
2
HV264DB1
Doc.# DSDB-HV264DB1
NR060613
Schematics
VDD VPP
HVOUT1
HVOUT2
HVOUT3
HVOUT4
R3
0
R4
0
R2
0
R11
0
R7
NA
R12
0
R8
NA
R10
0
R6
NA
VDD VPP
6 19
GND HVGND
7 18
D1
+
-
R
65.7R
R1
0
R9
0
R5
NA
C1 C2
23
22
3
21
20
5
17
16
9
15
14
11
2
4
8
10
VIN1
VIN2
VIN3
VIN4
VOUT
1
FB1
RGND1
VOUT
2
FB2
RGND2
VOUT
3
FB3
RGND3
VOUT
4
FB4
RGND4
HV264
+
-
R
65.7R
+
-
R
65.7R
+
-
R
65.7R
R1
R3
R4
R2
R9
R5
0Ω
R11
R7
0Ω
R12
R8
0Ω
R10
R6
0Ω
HV OUT1 = IN1 R9 + 1
R1
HV
OUT2 = IN2
R10
+ 1
R2
HV
OUT3 = IN3
R11
+ 1
R3
HV OUT4 = IN4
R12
+ 1
R4
VDD VPP
VDD VPP
6 19
GND HVGND
7 18
D1
+
-
R
65.7R
C1 C2
23
22
3
21
20
5
17
16
9
15
14
11
2
4
8
10
VIN 1
VIN 2
VIN 3
VIN 4
VOUT1
FB1
RGND1
VOUT2
FB2
RGND2
VOUT3
FB3
RGND3
VOUT4
FB4
RGND4
HV264
+
-
R
65.7R
+
-
R
65.7R
+
-
R
65.7R
Fig. 1. Demo Board Resistor Settings Fig. 2. High Precision Gain Settings
Using External Resistors
Bill of Materials
Item PackageRefDes Description Manufacturer Part #
1 C1 0.1µF +/-10%, 25V X7R
chip capacitor 0805 Any ---
2 C2 1.0nF +/-10%, 250V X7R
chip capacitor 0805 Any ---
3 D1 400V, 1.0A,
general purpose diode SMA Any USIG
4R1 ,R2, R3, R4, R9,
R10, R11, R12 0Ω chip resistors 0805 Any ---
5 R5, R6, R7, R8 chip resistors (not installed) 0805 Any ---
6 U1 225V, 3.0mA amplier array 24-pin TSSOP Supertex HV264TS-G

Product specificaties

Merk: Microchip
Categorie: Niet gecategoriseerd
Model: HV264DB1

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