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LTC1157CS8#PBF PDF预览

LTC1157CS8#PBF

更新时间: 2024-09-25 20:08:55
品牌 Logo 应用领域
凌特 - Linear 驱动光电二极管接口集成电路驱动器
页数 文件大小 规格书
8页 197K
描述
LTC1157 - 3.3V Dual Micropower High-Side/Low-Side MOSFET Driver; Package: SO; Pins: 8; Temperature Range: 0°C to 70°C

LTC1157CS8#PBF 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:SOIC包装说明:SOP,
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:7.66高边驱动器:YES
输入特性:STANDARD接口集成电路类型:BUFFER OR INVERTER BASED MOSFET DRIVER
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:4.9 mm湿度敏感等级:1
功能数量:2端子数量:8
最高工作温度:70 °C最低工作温度:
输出特性:TOTEM-POLE输出极性:TRUE
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.75 mm表面贴装:YES
技术:CMOS温度等级:COMMERCIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30断开时间:60 µs
接通时间:750 µs宽度:3.9 mm
Base Number Matches:1

LTC1157CS8#PBF 数据手册

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LTC1157  
3.3V Dual Micropower  
High-Side/Low-Side MOSFET Driver  
U
DESCRIPTIO  
EATURE  
S
F
Allows Lowest Drop 3.3V Supply Switching  
Operates on 3.3V or 5V Nominal Supplies  
3 Microamps Standby Current  
The LTC1157 dual 3.3V micropower MOSFET gate driver  
makes it possible to switch either supply or ground  
reference loads through a low RDS(ON) N-channel switch  
(N-channel switches are required at 3.3V because P-  
channel MOSFETs do not have guaranteed RDS(ON) with  
80 Microamps ON Current  
Drives Low Cost N-Channel Power MOSFETs  
No External Charge Pump Components  
Controlled Switching ON and OFF Times  
Compatible with 3.3V and 5V Logic Families  
Available in 8-Pin SOIC  
V
GS 3.3V). The LTC1157 internal charge pump boosts  
the gate drive voltage 5.4V above the positive rail (8.7V  
above ground), fully enhancing a logic level N-channel  
switch for 3.3V high-side applications and a standard N-  
channel switch for 3.3V low-side applications. The gate  
drive voltage at 5V is typically 8.8V above supply (13.8V  
above ground), so standard N-channel MOSFET switches  
can be used for both high-side and low-side applications.  
O U  
PPLICATI  
S
A
Notebook Computer Power Management  
Palmtop Computer Power Management  
P-Channel Switch Replacement  
Battery Charging and Management  
Mixed 5V and 3.3V Supply Switching  
Stepper Motor and DC Motor Control  
Cellular Telephones and Beepers  
Micropower operation, with 3µA standby current and  
80µA operating current, makes the LTC1157 well suited  
for battery-powered applications.  
The LTC1157 is available in both 8-pin DIP and SOIC.  
U
O
TYPICAL APPLICATI  
Ultra Low Voltage Drop 3.3V Dual High-Side Switch  
Gate Voltage Above Supply  
12  
3.3V  
10  
8
+
10µF  
6
V
S
(8.7V)  
(8.7V)  
IN1  
IN2  
G1  
G2  
IRLR024  
3.3V  
LOGIC  
LTC1157  
GND  
4
3.3V  
LOAD  
IRLR024  
2
3.3V  
LOAD  
LTC1157 • TA01  
0
5.0 5.5  
2.0 2.5 3.0 3.5 4.0 4.5  
SUPPLY VOLTAGE (V)  
6.0  
LTC1157 • TA02  
1

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