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參數(shù)資料
| 型號： | VB408FI |
| 廠商： | 意法半導體 |
| 英文描述： | HIGH VOLTAGE LINEAR REGULATOR POWER I.C. |
| 中文描述： | 高電壓線性穩(wěn)壓電源集成電路 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 57K |
| 代理商： | VB408FI |
September 1999
1/8
VB408
/
VB408B / VB408FI
HIGH VOLTAGE LINEAR REGULATOR
POWER I.C.
I
INPUT VOLTAGE UP TO 400 V DC OR 285 V
RMS RECTIFIED
I
OUTPUT VOLTAGE ADJUSTABLE FROM1.25
TO V
IN
-30V
I
OUTPUT CURRENT LIMITED TO 40 mA
I
THERMAL SHUT-DOWN PROTECTION
I
SHORT CIRCUIT PROTECTION
DESCRIPTION
The VB408, VB408B, VB408FI are fully protected
positive adjustable voltage regulators made using a
proprietary High Voltage VIPower
technology. The
device can beconnected toa D.C. source (upto 400V) or
in off-line application directly to the rectified main (110V/
230V). It is particularly suitable to be used in the
manufacture of DC/DC converters, AC/DC converters,
start-up circuits, pneumatic valve drivers and current
sources. The device is able to drive resistive or inductive
loads with an output voltage from 1.25V to V
IN
-30V
providing an internally limited output current; it has built in
short circuit and thermal shutdown protections. The
device does not provide galvanic insulation from main.
TYPE
VB408
VB408FI
VB408B
V
IN,OUT
I
LIM
V
OUT
400 V
40 mA
1.25 to V
IN
-30 V
1
PRELIMINARY DATA
BLOCK DIAGRAM
FC00410
V
OUT
V
IN
ADJ
BIAS
CIRCUIT
CURRENT
SENSE
+
_
+
_
REF 1
+
_
Thermal
Protection
Control
Signal
Power
Stage
Current
Limitation
REF 2
REF 3
TO-220
1
2
3
2
3
ISOWATT220
ORDER CODES :
ISOWATT220
D2PAK
VB408FI
VB408B
TO-220
VB408
1
3
D2PAK
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