参数资料
| 型号： | SI9112DY-E3 |
| 厂商： | Vishay Siliconix |
| 文件页数： | 1/10页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBK CUK CM 14SOIC |
| 标准包装： | 550 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 3MHz |
| 占空比： | 50% |
| 电源电压： | 9 V ~ 13.5 V |
| 降压： | 无 |
| 升压： | 无 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 是 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
Si9112
Vishay Siliconix
High-Voltage Switchmode Controller
FEATURES
D 9- to 80-V Input Range
D Current-Mode Control
D High-Speed, Source-Sink Output Drive
DESCRIPTION
D High Efficiency Operation (> 80%)
D Internal Start-Up Circuit
D Internal Oscillator (1 MHz)
D SHUTDOWN and RESET
The Si9112 is a BiC/DMOS integrated circuit designed for use
in high-efficiency switchmode power converters. A
high-voltage DMOS input allows this controller to work over a
wide range of input voltages (9- to 80-VDC). Current-mode
PWM control circuitry is implemented in CMOS to reduce
internal power consumption to less than 10 mW.
A CMOS output driver provides high-speed switching of
MOSPOWER devices large enough to supply 50 W of output
FUNCTIONAL BLOCK DIAGRAM
power. When combined with an output MOSFET and
transformer, the Si9112 can be used to implement
single-ended power converter topologies (i.e., flyback,
forward, and cuk).
The Si9112 is available in both standard and lead (Pb)-free
14-pin plastic DIP and SOIC packages which are specified to
operate over the industrial temperature range of ? 40 _ C to
85 _ C.
FB
14
COMP
13
DISCHARGE
9
OSC
IN
8
OSC
OUT
7
V REF
10
?
+
Error
Amplifier
OSC
Clock
( 1 / 2 f OSC )
To
V CC
4 V (2%)
Ref
Gen
2V
?
+
Current-Mode
Comparator
R
S
Q
4
5
OUTPUT
? V IN
+
?
C/L
Comparator
BIAS
V CC
1
6
Current
Sources
To
Internal
Circuits
1.2 V
V CC
3
SENSE
+V IN
2
8.1 V
?
+
Undervoltage Comparator
Q
S
R
11
12
SHUTDOWN
RESET
?
+
8.7 V
Pre-Regulator/Start-Up
Applications information, see AN703.
sDocument Number: 70005
S-42036—Rev. H, 15-Nov-04
www.vishay.com
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SI9112DY-T1 | 功能描述:开关变换器、稳压器与控制器 Hi-Eff/Hi-Voltage Switchmode RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| SI9112DY-T1-E3 | 功能描述:开关变换器、稳压器与控制器 Hi-Eff/Hi-Voltage Switchmode RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| SI9113 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:High-Voltage Current Mode PWM Controller for ISDN Power Supplies |
| SI9113_04 | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:High-Voltage Current Mode PWM Controller for ISDN Power Supplies |
| SI9113DB | 制造商:VISHAY 制造商全称:Vishay Siliconix 功能描述:SI9113 Demonstration Board |
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