MAX890LESA-T Maxim Integrated Products, MAX890LESA-T Datasheet

no-image

MAX890LESA-T

Manufacturer Part Number
MAX890LESA-T
Description
Current Limit SW 1-IN 1-OUT 2.7V to 5.5V 1.2A 8-Pin SOIC N T/R
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX890LESA-T

Package
8SOIC N
Input Voltage
2.7 to 5.5 V
Maximum Output Current
1.2(Typ) A
Number Of Outputs
1
Operating Temperature
-40 to 85 °C

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX890LESA-T
Manufacturer:
BCD
Quantity:
5 000
Part Number:
MAX890LESA-TG974
Manufacturer:
MAXIM/美信
Quantity:
20 000
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 supply against overload. Thermal-overload pro-
tection limits power dissipation and junction tempera-
tures.
The MAX890L’s maximum current limit is 1.2A. 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.
________________________Applications
19-1146; Rev 3; 3/00
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
INPUT
1µF
PCMCIA Slots
Access Bus Slots
Portable Equipment
100kΩ
P-Channel Switch with Thermal Shutdown
Typical Operating Circuit
________________________________________________________________ Maxim Integrated Products
IN
IN
FAULT
GND
MAX890L
General Description
OUT
OUT
SET
ON
1.2A, Current-Limited, High-Side
ON/OFF
R
SET
0.1µF
OUTPUT
____________________________Features
o +2.7V to +5.5V Input Range
o Programmable Current Limit
o Low Quiescent Current
o Thermal Shutdown
o FAULT Indicator Output
o 0.09Ω (typ) On-Resistance
* To order this unit in tape and reel, add (-T) to the end of the part
** Dice are tested at T
number.
MAX890LC/D
MAX890LESA
TOP VIEW
PART*
10µA (typ) at V
0.1µA (typ) with Switch Off
GND
-40°C to +85°C
ON
IN
IN
0°C to +70°C
A
RANGE
1
2
3
4
TEMP.
= +25°C.
IN
Ordering Information
= +3.3V
MAX890L
SO
Pin Configuration
PIN-
PACKAGE
Dice**
8 SO
8
7
6
5
FAULT
OUT
OUT
SET
CURRENT
LIMIT
1.2A
1.2A
1

Related parts for MAX890LESA-T

MAX890LESA-T Summary of contents

Page 1

... V 0.1µA (typ) with Switch Off o Thermal Shutdown o FAULT Indicator Output o 0.09Ω (typ) On-Resistance PART* MAX890LC/D MAX890LESA * To order this unit in tape and reel, add (-T) to the end of the part number. ** Dice are tested at T TOP VIEW OUTPUT 0.1µF ...

Page 2

... FAULT Logic Output Low Voltage FAULT Logic Output High Leakage Current Slow-Current-Loop Response Time Fast-Current-Loop Response Time Turn-On Time Turn-Off Time 2 _______________________________________________________________________________________ Operating Temperature Range MAX890LESA ....................................................-40°C to +85°C + 0.3V) Storage Temperature Range ........................... -65°C to +150°C IN Lead Temperature (soldering, 10s) . ...............................+300°C = +25°C.) A CONDITIONS = 5V GND, I ...

Page 3

P-Channel Switch with Thermal Shutdown ELECTRICAL CHARACTERISTICS (V = +3V -40°C to +85°C, unless otherwise noted.) (Note PARAMETER Operating Voltage Quiescent Current Off-Supply Current Off-Switch Current Undervoltage Lockout On-Resistance Current-Limit-Amplifier Threshold Current ...

Page 4

Current-Limited, High-Side P-Channel Switch with Thermal Shutdown __________________________________________Typical Operating Characteristics (T = +25°C, unless otherwise noted.) A QUIESCENT CURRENT vs. INPUT VOLTAGE GND OUT ...

Page 5

P-Channel Switch with Thermal Shutdown ____________________________Typical Operating Characteristics (continued +25°C, unless otherwise noted.) A OUTPUT OVER-LOAD (SLOW LOOP RESPONSE 0V, 0A 2µs/div C = 100µ 0.1µF IN OUT 1V/div, AC-COUPLED ...

Page 6

Current-Limited, High-Side P-Channel Switch with Thermal Shutdown PIN NAME Input. P-channel MOSFET source. Bypass IN with a 1µF capacitor to ground Active-Low Switch On Input. A logic low turns the switch on. 4 GND ...

Page 7

P-Channel Switch with Thermal Shutdown MAX890L SET GND Figure 2. Setting the Current Limit Slow-Loop Response in the Typical Operating Characteristics. Thermal Shutdown The MAX890L features thermal shutdown. The switch turns off when the junction temperature exceeds +135°C. Once the ...

Page 8

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2000 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

Related keywords