- 您现在的位置：买卖IC网 > PDF目录15465 > SI9112DY-T1-E3 (Vishay Siliconix)IC REG CTRLR FLYBK CUK CM 14SOIC PDF资料下载
参数资料
| 型号： | SI9112DY-T1-E3 |
| 厂商： | Vishay Siliconix |
| 文件页数： | 6/10页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBK CUK CM 14SOIC |
| 标准包装： | 2,500 |
| 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
DETAILED DESCRIPTION (CONT’D)
Oscillator Section
Table 1: Truth Table for the SHUTDOWN and RESET Pins
The oscillator consists of a ring of CMOS inverters, capacitors,
and a capacitor discharge switch. Frequency is set by an
external resistor between the OSC IN and OSC OUT pins.
(See Typical Characteristics for details of resistor value vs.
frequency.) The DISCHARGE pin should be tied to ? V IN for
normal internal oscillator operation. A frequency divider in the
logic section limits switch duty cycle to v 50% by locking the
switching frequency to one half of the oscillator frequency.
SHUTDOWN
H
H
L
L
RESET
H
H
L
L
Output
Normal Operation
Normal Operation (No Change)
Off (Not Latched)
Off (Latched)
Off (Latched, No Change)
Remote synchronization can be accomplished by capacitive
coupling of a SYNC pulse into the OSC IN (pin 8) terminal. For
a 5-V pulse amplitude and 0.5- m s pulse width, typical values
would be 100 pF in series with 3 k W to pin 8.
SHUTDOWN and RESET
SHUTDOWN (pin 11) and RESET (pin 12) are intended for
overriding the output MOSFET switch via external control
logic. The two inputs are fed through a latch preceding the
output switch. Depending on the logic state of RESET,
SHUTDOWN can be either a latched or unlatched input. The
output is off wheneve r SHUTDOWN is low. By simultaneously
having SHUTDOWN and RESET low, the latch is set and
SHUTDOWN has no effect until RESET goes high. The truth
table for these inputs is given in Table 1.
Both pins have internal current source pull-ups and should be
left disconnected when not in use. An added feature of the
current sources is the ability to connect a capacitor and an
open-collector driver to the SHUTDOWN or RESET pins to
provide variable shutdown time.
Output Driver
The push-pull driver output has a typical on-resistance of 20 W .
Maximum switching times are specified at 75 ns for a 500 pF
load. This is sufficient to directly drive 60-V, 25-A MOSFETs.
Larger devices can be driven, but switching times will be
longer, resulting in higher switching losses.
For applications information refer to AN703.
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and
Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and reliability data, see
http://www.vishay.com/ppg?70005 .
www.vishay.com
6
sDocument Number: 70005
S-42036—Rev. H, 15-Nov-04
相关PDF资料 |
PDF描述 |
|---|---|
| GCM24DCMT-S288 | CONN EDGECARD 48POS .156 EXTEND |
| EBC49DRAH | CONN EDGECARD 98POS R/A .100 SLD |
| V48C5T100B2 | CONVERTER MOD DC/DC 5V 100W |
| MCP1650ST-E/MS | IC REG CTRLR BST FLYBK PWM 8MSOP |
| EB43-S0C2260W | CONN EDGEBOARD DUAL 44POS 3A |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| SI9113DY | 功能描述:电流型 PWM 控制器 HV Currentmode Cont RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| SI9113DY-E3 | 功能描述:电流型 PWM 控制器 Hi-V PWM Controller For ISDN Pwr Supply RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
发布紧急采购，3分钟左右您将得到回复。