参数资料
型号: SI9113DY-E3
厂商: Vishay Siliconix
文件页数: 1/13页
文件大小: 0K
描述: IC CONTROLLER PWM/LDO 14SOIC
标准包装: 550
应用: 控制器,ISDN 电源
输入电压: 23.5 V ~ 200 V
输出数: 1
输出电压: 可调至 1.3V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
供应商设备封装: 14-SOIC
包装: 散装
Si9113
Vishay Siliconix
High-Voltage Current Mode PWM Controller for
ISDN Power Supplies
FEATURES
D
D
D
D
D
BiC/DMOS Technology
Current Mode Control
Max 50% Duty Cycle Operation
1.3-MHz Error Amp
Up to 500-kHz Internal Oscillator
D
D
D
D
D
Soft-Start
0.6-V Fast Over-Current Protection
<5- m A Supply Current for +V IN <18 V
23.5-V to 200-V Input Voltage Range
Programmable Start/Stop Capability
D Internal Start-Up Circuit
D Power_Good Output
DESCRIPTION
Si9113 is a current mode PWM controller for ISDN power
supplies. In a 14-pin SOIC package, it provides all necessary
functions to implement a single-switch PWM with a minimum
of external parts. To maximize the circuit integration, the
Si9113 is designed with a 200-V depletion mode MOSFET
capable of powering directly off the high input bus without an
external start-up circuit. The Start and Stop input voltage
thresholds can be programmed within the operating input
voltage range by means of a resistor divider, provided +V IN
(Start) > +V IN (Stop). The internal clock frequency is set with
a single external resistor and is capable of capacitor-coupled
external synchronization. In order to satisfy the stringent
ambient temperature requirements, the Si9113 is rated to
handle the industrial range of ? 40 _ C to 85 _ C.
The Si9113 is available in both standard and lead (Pb)-free
packages.
FUNCTIONAL BLOCK DIAGRAM
V IN (23.5 V to 200 V)
V OUT
Start-Up
Stop/Start
Power_Good
V REF = 1.3 V
Drive
Current
Comparator
Fast
Current
Limit
Comparator
See Detailed Block Diagram, page 7 .
Applications information see AN728.
A Demonstration Borad data sheet is available for this product.
Document Number: 71093
S-40746—Rev. B. 19-Apr-04
www.vishay.com
1
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