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參數資料
| 型號： | SI9112DY-T1-E3 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | High-Voltage Switchmode Controller |
| 中文描述： | 高電壓開關模式控制器 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 71K |
| 代理商： | SI9112DY-T1-E3 |
Si9112
Vishay Siliconix
sDocument Number: 70005
S-42036—Rev. H, 15-Nov-04
www.vishay.com
1
High-Voltage Switchmode Controller
FEATURES
9- to 80-V Input Range
Current-Mode Control
High-Speed, Source-Sink Output Drive
High Efficiency Operation (> 80%)
Internal Start-Up Circuit
Internal Oscillator (1 MHz)
SHUTDOWN and RESET
DESCRIPTION
The Si9112 is a BiC/DMOS integrated circuit designed for use
in
high-efficiency
switchmode
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.
power
converters. A
A CMOS output driver provides high-speed switching of
MOSPOWER devices large enough to supply 50 W of output
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.
FUNCTIONAL BLOCK DIAGRAM
+
+
+
+
+
FB
COMP
DISCHARGE
OSC
14
13
9
8
7
2 V
Ref
Gen
R
S
Q
R
S
Q
SENSE
3
11
12
Current-Mode
Comparator
C/L
1.2 V
Undervoltage Comparator
RESET
8.1 V
8.7 V
BIAS
Current
Sources
To
Internal
Circuits
10
1
6
2
Comparator
Error
Amplifier
V
REF
V
CC
+V
IN
V
CC
SHUTDOWN
4 V (2%)
OSC
OUT
OSC
IN
Pre-Regulator/Start-Up
5
4
V
IN
OUTPUT
To
V
CC
Clock (
1
/
2
f
OSC
)
Applications information, see AN703.
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| SI9113DY | 功能描述:電流型 PWM 控制器 HV Currentmode Cont RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| SI9113DY-E3 | 功能描述:電流型 PWM 控制器 Hi-V PWM Controller For ISDN Pwr Supply RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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