SI9102 Vishay, SI9102 Datasheet

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SI9102

Manufacturer Part Number
SI9102
Description
Si9102 - Vishay Power Ics
Manufacturer
Vishay
Datasheet

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SI9102DN02-E3
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DESCRIPTION
The Si9102 high-voltage switchmode regulator is a mono-
lithic BiC/DMOS integrated circuit which contains most of the
components necessary to implement a high-efficiency dc-to-
dc converter up to 3 watts. It can either be operated from
a low-voltage dc supply, or directly from a 10 to 120 V un-
regulated dc power source.
This device may be used with an appropriate transformer to
implement most single-ended isolated power converter
topologies (i.e., flyback and forward).
The Si9102 is available in both standard and lead (Pb)-free
14-pin plastic DIP and 20-pin PLCC packages which are
specified to operate over the industrial temperature range of
- 40 °C to 85 °C.
FUNCTIONAL BLOCK DIAGRAM
Document Number: 70001
S-70497-Rev. H, 19-Mar-07
V
+V
BIAS
V
REF
CC
IN
10 (14)
1 (2)
6 (9)
2 (3)
Current
Sources
Gen
3-W High-Voltage Switchmode Regulator
Ref
FB
-
+
14 (20)
4 V (1 %)
-
+
Amplifier
8.8 V
Note: Figures in parenthesis represent pin numbers for 20-pin package.
Error
9.4 V
Internal
Circuits
To
COMP
13 (18)
2 V
-
+
1.2 V
Undervoltage
DISCHARGE
Comparator
-
+
+
-
9 (12)
Current-Mode
Comparator
Comparator
C/L
8 (11)
FEATURES
OSC
• 10 to 120 V Input Range
• Current-Mode Control
• On-chip 200 V, 7 Ω MOSFET Switch
• SHUTDOWN and RESET
• High Efficiency Operation (> 80 %)
• Internal Start-Up Circuit
• Internal Oscillator (1 MHz)
IN
OSC
OSC
OUT
Clock (
7 (10)
R
S
1
/
2
Q
f
OSC
)
Q
S
R
V
CC
11 (16)
12 (17)
Vishay Siliconix
3 (5)
5 (8)
4 (7)
SHUTDOWN
RESET
www.vishay.com
DRAIN
SOURCE
Si9102
(BODY)
- V
IN
1

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SI9102 Summary of contents

Page 1

... This device may be used with an appropriate transformer to implement most single-ended isolated power converter topologies (i.e., flyback and forward). The Si9102 is available in both standard and lead (Pb)-free 14-pin plastic DIP and 20-pin PLCC packages which are specified to operate over the industrial temperature range ° ...

Page 2

... Si9102 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Parameter Voltages Referenced < (Peak) (Note: 300 µs pulse duty cycle (rms) D Logic Inputs (RESET, SHUTDOWN, OSC IN) Linear Inputs (FEEDBACK, SOURCE) HV Pre-Regulator Input Current (continuous) Storage Temperature Operating Temperature ...

Page 3

... Room 7.8 9.4 CC Room 7.0 8.8 Room 0.3 0.6 Room 0.45 0.6 Room 10 15 Room 50 Room 50 Room 50 Room 25 Room Room 8.0 Room 1 Room - Full 200 220 Room Room 5 Room 35 Si9102 d Unit 4.04 V 500 nA dB MHz Ω - 1.4 mA ± 1.4 V 200 ns 120 V 10 µA mA 9.7 V 9.2 1 µA 100 ns 2 µA V Ω ...

Page 4

... Si9102 Vishay Siliconix TIMING WAVEFORMS 1 SOURCE DRAIN 0 Figure SHUTDOWN RESET 0 - TYPICAL CHARACTERISTICS 140 120 100 (mA) IN Figure vs www.vishay.com 4 ≤ Figure 3. 100 k 20 ...

Page 5

... Top View DETAIL DESCRIPTION Pre-Regulator/Start-Up Section Due to the low quiescent current requirement of the Si9102 control circuitry, bias power can be supplied from the unreg- ulated input power source, from an external regulated low- voltage supply, or from an auxiliary "bootstrap" winding on the output inductor or transformer. ...

Page 6

... Nominal reference output voltage The trimming proce- dure that is used on the Si9102 brings the output of the error amplifier (which is configured for unity gain during trimming) to within ± This automatically compensates for the input offset voltage in the error amplifier ...

Page 7

... Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and reliability data, see http://www.vishay.com/ppg?70001. Document Number: 70001 S-70497-Rev. H, 19-Mar-07 20 µF 18 kΩ 240 kΩ 0.022 µ 0.1 µF 12 kΩ Si9102 Vishay Siliconix 1N5819 2 3 300 µH 0.1 µ 0.1 µF 1N5819 6 8 0.1 µF 1N4148 www ...

Page 8

... Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right ...

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