- 您现在的位置：买卖IC网 > PDF目录53674 > LX1681CDMT 1 A SWITCHING CONTROLLER, 230 kHz SWITCHING FREQ-MAX, PDSO8 PDF资料下载
参数资料
| 型号： | LX1681CDMT |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 230 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | PLASTIC, SOIC-8 |
| 文件页数： | 4/9页 |
| 文件大小： | 145K |
| 代理商： | LX1681CDMT |
V O L T AGE -M ODE PWM C ONTROLLERS
LX1681/1682
PRODUCT DA T ABOOK 1996/1997
Copyright 1999
Rev. 1.0 5/99
4
P RODUCTION D AT A S HEET
V
FB
Voltage feedback — 1.25V reference is connected to a resistor divider to set desired
1
output voltage.
SS
Soft-start and hiccup capacitor pin. During start up the voltage of this pin controls the
2
output voltage. An internal 20k
resistor and the external capacitor set the time constant
for soft-startup. Soft-start does not begin until the supply voltage exceeds the UVLO
threshold. When over-current occurs, this capacitor is used for timing hiccup.
The PWM can be disabled by pulling the SS pin below 0.3V.
GND
Ground for IC
43
TDRV
Gate drive for upper MOSFET
5
4
BDRV
Gate drive for lower MOSFET
5
V
C1
Separate supply for MOSFET gate drive. Connect to 12V
6
CS
Over-current set. Connect resistor between CS pin and the source of the upper MOSFET to
7
set current-limit point.
V
CC
IC supply voltage (nominal 5V) and high side drain sense voltage.
8
Pin
Pin Number
Name
Description
LX1681
LX1682
FUNCTIONAL PIN DESCRIPTION
相关PDF资料 |
PDF描述 |
|---|---|
| LX1734-CSET | 1 A SWITCHING CONTROLLER, 1400 kHz SWITCHING FREQ-MAX, PDSO5 |
| LX432CSCTR | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO3 |
| LX432ISC-TR | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO3 |
| LX432ISCTR | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO3 |
| LXM1618-03-22 | SPECIALTY ANALOG CIRCUIT, XMA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LX1681CDM-TR | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:Voltage-Mode PWM Controllers |
| LX1681IDM | 功能描述:IC REG CTRLR DIVIDER PWM 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| LX1682 | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:VOLTAGE - MODE PWM CONTROLLERS |
| LX1682CDM | 功能描述:IC REG CTRLR DIVIDER PWM 8-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| LX1682CDMT | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:Voltage-Mode SMPS Controller |
发布紧急采购，3分钟左右您将得到回复。