参数资料
型号: SI9104DW-E3
厂商: Vishay Siliconix
文件页数: 1/7页
文件大小: 0K
描述: IC REG MULTI CONFIG 4V 16SOIC
标准包装: 528
类型: 回扫,正向转换器,隔离式
输出类型: 固定
输出数: 1
输出电压: 4V
输入电压: 10 V ~ 120 V
PWM 型: 电流模式
频率 - 开关: 40kHz ~ 1MHz
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
包装: 带卷 (TR)
供应商设备封装: 16-SOIC
Product is End of Life 3/2014
Si9104
Vishay Siliconix
High-Voltage Switchmode Regulator
DESCRIPTION
FEATURES
The Si9104 high-voltage switchmode regulator is a
monolithic BiC/DMOS integrated circuit which contains most
of the components necessary to implement a high-efficiency
DC-to-DC converter up to 3 W. It can either be operated from
a low-voltage DC supply, or directly from a 10 to 120 V
unregulated 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 Si9104 is available in a 16-pin wide-body SOIC and is
specified over the D suffix (- 40 to 85 °C) temperature range.
FUNCTIONAL BLOCK DIAGRAM
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10 to 120 V Input Range
Current-Mode Control
On-Chip 200 V, 5 Ω MOSFET Switch
SHUTDOWN and RESET
High Efficiency Operation (> 80 %)
Internal Start-Up Circuit
Internal Oscillator (1 MHz)
OSC
OSC
FB
COMP
DISCHARGE
IN
OUT
Error
-
Amplifier
OSC
V REF
Ref
+
4 V (2.5 %)
2V
-
+
Current-Mode
Comparator
Clock ( 1 / 2 f OSC )
R
Q
Gen
+
-
C/L
S
DRAIN
1.2 V
Comparator
- V IN
(BODY)
BIAS
Current
Sources
To
Internal
V CC
Circuits
V CC
SOURCE
+V IN
8.8 V
-
+
Undervoltage Comparator
Q
S
R
SHUTDOWN
RESET
-
Document Number: 70002
S-60752-Rev. E, 05-Apr-99
+
9.4 V
www.vishay.com
1
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