HV257DB2 Supertex, HV257DB2 Datasheet - Page 2

• Manufacturer Part Number: HV257DB2
• Manufacturer: Supertex

Specifications of HV257DB2

• Lead Free Status / RoHS Status: Supplier Unconfirmed

The output current source and sink for all 32 channels can
be adjusted using R1 and R2. The limit is approximately
12.5V divided by the resistor value. The demo board uses
24.9KΩ for ±500µA limiting.
Circuit Diagram
Bill of Materials
081710
©2010
Supertex inc.
an adequate “product liability indemnification insurance agreement.”
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
C2-C9
Part
C10
Supertex inc.
C1
R1
R2
R3
D1
D2
U1
Description
X7R chip capacitor
X7R chip capacitor
X7R chip capacitor
Chip resistor
Chip resistor
Chip resistor
Rectifier diode
Schottky diode
Amplifier array
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
All rights reserved. Unauthorized use or reproduction is prohibited.
AGND
DGND
AV
AV
DV
DV
V
DD
NN
DD
PP
NN
0.1µF
0.1µF
10nF
C1
C2
C3
Control
Inputs
Logic
Analog
Input
500V, 0.01µF±10%
+
-
25V, 0.1µF±10%
10V, 1.0µF±10%
D1
D2
24.9KΩ, ±1%
24.9KΩ, ±1%
0.1µF
400V, 1.0A
20V, 20mA
C4
Value
300V
0Ω
Supertex inc.
24.9KΩ
24.9KΩ
R2
R1
0.1µF
C9
0.1µF
0.1µF
C6
C5
2
100-Lead MQFP
Temperature Diode
The HV257FG has an integrated silicon diode to help moni-
tor the die temperature if desired. Pin 95 is the anode and
pin 96 is the cathode. Pads are available on the board for
these connections.
Byp-AVPP
VPP
AVDD
AVNN
RSINK
RSOURCE
DVDD
DVNN
A0
A1
A2
A3
A4
EN
VSIG
does not assume responsibility for use of devices described, and limits its liability
SOD-323
Package
AGND
0805
0805
0805
0805
0805
0805
SMA
0.1µF
C8
HV257FG
Byp-AVDD
0.1µF
C10
Supertex inc.
AGND
0.1µF
C7
Byp-AVNN
CATHODE
R3
0Ω
Manufacturer
HV
HV
ANODE
HV
HV
HV
Diodes Inc
Diodes Inc
DGND
Supertex
OUT
OUT
OUT
OUT
OUT
Tecate
Tecate
(website: http//www.supertex.com)
30
31
Any
Any
Any
Any
0
1
2
1235 Bordeaux Drive, Sunnyvale, CA 94089
Supertex inc.
High
Voltage
Outputs
CMC-500103KX0805T
CMC-025104KX0805T
Part Number
SD103CWS
HV257DB2
HV257FG
www.supertex.com
US1G
Tel: [phone]
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