MAX890LESA Datasheet Download

Part No.:
MAX890LESA
Download:
Download Datasheet
Description:
[1A, Current-Limited, High-Side P-Channel Switch with Thermal Shutdown]
File Size:
137 K
Page:
8 Pages
Logo:
Manufacturer:
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
PCB Prototype
 MAX890LESA Datasheet Page:2MAX890LESA Datasheet Page:3MAX890LESA Datasheet Page:4MAX890LESA Datasheet Page:5MAX890LESA Datasheet Page:6MAX890LESA Datasheet Page:7MAX890LESA Datasheet Page:8 
19-1146; Rev 2; 11/98
1A, Current-Limited, High-Side
P-Channel Switch with Thermal Shutdown
General Description
The MAX890L 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 sup-
ply against overload. Thermal-overload protection limits
power dissipation and junction temperatures.
The MAX890L’s maximum current limit is 1A. The cur-
rent limit through the switch is programmed with a
resistor from SET to ground. The quiescent supply cur-
rent is a low 10µA. When the switch is off, the supply
current decreases to 0.1µA.
The MAX890L is available in an 8-pin SO package.
____________________________Features
o
2.7V to 5.5V Input Range
o
Programmable Current Limit
o
Low Quiescent Current
10µA (typ) at V
IN
= 3.3V
0.1µA (typ) with Switch Off
o
Thermal Shutdown
o
FAULT
Indicator Output
o
0.09Ω (typ) On-Resistance
MAX890L
________________________Applications
PCMCIA Slots
Access Bus Slots
Portable Equipment
PART*
MAX890LC/D
MAX890LESA
Ordering Information
TEMP.
RANGE
0°C to +70°C
-40°C to +85°C
PIN-
PACKAGE
Dice**
8 SO
CURRENT
LIMIT
1A
1A
*
To order this unit in tape and reel, add (-T) to the end of the part
number.
**
Dice are tested at T
A
= +25°C.
Typical Operating Circuit
Pin Configuration
TOP VIEW
INPUT
IN
IN
100kΩ
FAULT
1µF
GND
ON
SET
R
SET
ON/OFF
OUT
OUTPUT
0.1µF
IN
1
IN
2
ON
3
GND
4
8
FAULT
MAX890L
OUT
MAX890L
7
OUT
6
OUT
5
SET
SO
________________________________________________________________
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.