SI9105DN02-T1 VISHAY [Vishay Siliconix], SI9105DN02-T1 Datasheet

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SI9105DN02-T1

Manufacturer Part Number
SI9105DN02-T1
Description
1-W High-Voltage Switchmode Regulator
Manufacturer
VISHAY [Vishay Siliconix]
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
SI9105DN02-T1-E3
Manufacturer:
Vishay Siliconix
Quantity:
10 000
DESCRIPTION
The Si9105 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/dc
converter in ISDN terminals up to 3 watts. A 0.5 mA max
supply current makes possible the design of a dc/dc con-
verter with 60 % efficiency at 25 mW, therefore meeting the
recommended performance under the CCITT I.430 specifi-
cations.
This device may be used with an appropriate transformer to
implement isolated flyback power converter topologies to
provide single or multiple regulated dc outputs (i.e., ± 5 V).
The Si9105 is available in both standard and lead (Pb)-free
16-pin wide-body SOIC, 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: 70003
S-70497-Rev. I, 19-Mar-07
V
BIAS
+V
V
REF
CC
IN
Current
Sources
1-W High-Voltage Switchmode Regulator
Gen
Ref
FB
-
+
4 V (1 %)
-
+
Amplifier
8.7 V
Error
9.3 V
Internal
Circuits
To
COMP
2 V
-
+
1.2 V
DISCHARGE
-
+
+
-
Undervoltage Comparator
Current-Mode
Comparator
Comparator
C/L
OSC
FEATURES
IN
• CCITT Compatible
• Current-Mode Control
• Low Power Consumption (less than 5 mW)
• 10 to 120 V Input Range
• 200 V, 250 mA MOSFET
• Internal Start-Up Circuit
• Current-Mode Control
• SHUTDOWN and RESET
OSC
OSC
OUT
Clock (½ f
R
S
Q
OSC
Q
)
R
S
V
CC
Vishay Siliconix
SHUTDOWN
RESET
DRAIN
SOURCE
www.vishay.com
(BODY)
- V
Si9105
IN
1

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SI9105DN02-T1 Summary of contents

Page 1

High-Voltage Switchmode Regulator DESCRIPTION The Si9105 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/dc converter in ISDN terminals watts. A 0.5 mA ...

Page 2

Si9105 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Parameter Voltages Referenced < (Peak) (300 µs pulse duty cycle (rms) D Logic Inputs (RESET, ...

Page 3

SPECIFICATIONS Parameter Error Amplifier Feedback Input Voltage Input BIAS Current e Open Loop Voltage Gain Input OFFSET Voltage e Unity Gain Bandwidth Dynamic Output Impedance Output Current Power Supply Rejection Current Limit V Threshold Voltage e Delay to Output ...

Page 4

Si9105 Vishay Siliconix TIMING WAVEFORMS 1 SOURCE DRAIN 0 Figure SHUTDOWN RESET 0 - TYPICAL CHARACTERISTICS www.vishay.com 4 ≤ ...

Page 5

... Lead (Pb)-free Temperature Range Part Number Si9105DJ02-E3 Si9105DW-T1-E3 (With Tape and Reel °C Si9105DN02-E3 Si9105DN02-T1-E3 (With Tape and Reel) Si9105 Vishay Siliconix PLCC- Top View 20-Pin PLCC ...

Page 6

Si9105 Vishay Siliconix DETAILED DESCRIPTION Pre-Regulator/Start-Up Section Due to the low quiescent current requirement of the Si9105 control circuitry, bias power can be supplied from the unreg- ulated input power source, from an external regulated low- voltage supply, or from ...

Page 7

DETAILED DESCRIPTION (CONT’D) SHUTDOWN and RESET SHUTDOWN and RESET are intended for overriding the output MOSFET switch via external control logic. The two inputs are fed through a latch preceding the output switch. Depending on the logic state of RESET, ...

Page 8

SOIC (WIDE-BODY): 16-LEAD (POWER IC ONLY) 0.2025$0.001 0.1475$0.001 0.070$0.005 0.055$0.005 0.405$0.001 0.091$0.001 0.041$0.001 0.050 TYP. All Dimensions In Inches Document Number: 72805 28-Jan-04 0.06$0.002D CAVITY NO. 0.010 9 0.295$0.001 ...

Page 9

PLCC: 2O-LEAD (POWER IC ONLY) D−SQUARE D −SQUARE Document Number: 72812 28-Jan-04 Package Information A 2 Dim ...

Page 10

PDIP: 14-LEAD (POWER IC ONLY Document Number: 72814 28-Jan- MILLIMETERS ...

Page 11

... Parameters provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s technical experts. Product specifications do not expand or otherwise modify Vishay’ ...

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