参数资料
型号: MAX893LESA+T
厂商: Maxim Integrated Products
文件页数: 1/8页
文件大小: 0K
描述: IC SW P-CH HS 8-SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 高端
输入类型: 非反相
输出数: 1
导通状态电阻: 70 毫欧
电流 - 输出 / 通道: 1.2A
电流 - 峰值输出: 1.8A
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
19-1450; Rev 0; 7/99
1.2A, Current-Limited, High-Side
P-Channel Switch with Thermal Shutdown
General Description
The MAX893L smart, low-voltage, P-channel, MOSFET
power switch is intended for high-side load-switching
applications. This switch operates with inputs from
+2.7V to +5.5V, making it ideal for both +3V and +5V
systems. Internal current-limiting circuitry protects the
input supply against overload. Thermal overload pro-
tection limits power dissipation and junction tempera-
ture.
The MAX893L’s maximum programmed current limit is
1.2A. The typical short-circuit current is 1.5 times the
programmed current; therefore, a 1.2A programmed
limit will result in a 1.8A short-circuit current limit. The
current limit through the switch is programmed with a
resistor from SET to ground. The quiescent supply cur-
rent is a low 13μA. When the switch is off, the supply
current decreases to 0.1μA.
The MAX893L is available in an 8-pin SO package.
________________________Applications
____________________________Features
o +2.7V to +5.5V Input Range
o Programmable Current Limit
0.2A to 1.2A Range
±20% Accuracy
o 1.2A Continuous Load Current
o 1.8A Short-Circuit Current
o Low Quiescent Current
13μA at V IN = 3.3V
0.1μA with Switch Off
o Thermal Shutdown
o FAULT Indicator Output
o 0.07 ? On-Resistance
Ordering Information
USB Ports
USB Hubs
PART
MAX893LESA
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
8 SO
PCMCIA Slots
Access Bus Slots
Portable Equipment
Typical Operating Circuit
TOP VIEW
Pin Configuration
INPUT
IN
OUT
OUTPUT
0.1 μ F *
IN
MAX893L
OUT
IN 1
8 FAULT
1 μ F
100k
FAULT
GND
ON
SET
ON/OFF
IN 2
ON 3
MAX893L
7 OUT
6 OUT
* USB SPECIFICATIONS REQUIRE HIGHER CAPACITANCE.
R SET
GND 4
SO
5 SET
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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