HV9901NG データシートの表示（PDF） - Supertex Inc
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HV9901NG Datasheet PDF : 6 Pages
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Functional Block Diagram and Typical Application
Notes: 1. This diode and bridge rectifier required only for AC operation.
2. For non-isolated AC operation the entire circuit must be floating.
3. All comparators have open drain outputs.
1N4148
See Note 1.
1
VIN
VDD
16
100nF
UVLO
C
A
Bandgap 1.25 V
Reference
VREF
15
HV9901
4.7µF
100nF
RHDa
LED
10K
VN2460N8
VDD
GT
4
100ns
Delay
CS
5.5kΩ
5
RS
COM
6
SYNC
7
R
2R
S
Q
R
R
C
Low Limit
High Limit
C
VDD
VDD
40µA
Oscillator
shut down
High Duty
Cycle
Oscillator
14
HOLD/DELAY
CHD
RHDb
FB
13
VDD
RFBb
1.25V
RFBa
12
VCC
100nF
5V
µP
ENI
11
ENO
10
Rosc
RT
8
©2002 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.
6
POL
9
06/26/02rev.4
1235 Bordeaux Drive, Sunnyvale, CA 94089
TEL: (408) 744-0100 • FAX: (408) 222-4895
www.supertex.com
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