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LT1910ES8 Datasheet

  • LT1910ES8

  • Protected High Side MOSFET Driver

  • 12頁

  • LINER

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LT1910
Protected High Side
MOSFET Driver
FEATURES
s
s
s
s
s
s
s
DESCRIPTIO
s
s
s
8V to 48V Power Supply Range
Protected from 鈥?5V to 60V Supply Transients
Short-Circuit Protected
Automatic Restart Timer
Open-Collector Fault Flag
Fully Enhances N-Channel MOSFET Switches
Programmable Current Limit, Delay Time and
Autorestart Period
Voltage Limited Gate Drive
Defaults to OFF State with Open Input
Available in SO-8 Package
The LT
廬
1910 is a high side gate driver that allows the use
of low cost N-channel power MOSFETs for high side
switching applications. It contains a completely self-con-
tained charge pump to fully enhance an N-channel MOSFET
switch with no external components.
When the internal drain comparator senses that the switch
current has exceeded the preset level, the switch is turned
off and a fault flag is asserted. The switch remains off for
a period of time set by an external timing capacitor and
then automatically attempts to restart. If the fault still
exists, this cycle repeats until the fault is removed, thus
protecting the MOSFET. The fault flag becomes inactive
once the switch restarts successfully.
The LT1910 has been specifically designed for harsh
operating environments such as industrial, avionics and
automotive applications where poor supply regulation
and/or transients may be present. The device will not
sustain damage from supply transients of 鈥?5V to 60V.
The LT1910 is available in the SO-8 package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
Industrial Control
Avionics Systems
Automotive Switches
Stepper Motor and DC Motor Control
Electronic Circuit Breaker
TYPICAL APPLICATIO
5V
5.1k
FAULT OUTPUT
OFF ON
Fault Protected High Side Switch
24V
LT1910
8
V
+
FAULT
4
6
IN
SENSE
2
5
TIMER GATE
3
GND
0.1碌F
1
0.50
0.45
Switch Drop vs Load Current
0.01鈩?/div>
TOTAL DROP (V)
0.40
0.35
0.30
0.25
0.20
0.15
0.10
IRFZ34
+
10碌F
50V
LOAD
1910 TA01
0.05
0
0
1
3
2
LOAD CURRENT (A)
4
5
1910 TA02
U
sn1910 1910fs
U
U
1

LT1910ES8 產(chǎn)品屬性

  • LT1910

  • 100

  • 集成電路 (IC)

  • PMIC - MOSFET，電橋驅(qū)動器 - 外部開關(guān)

  • -

  • 高端

  • 非反相

  • 220µs

  • -

  • 1

  • 1

  • -

  • 8 V ~ 48 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOIC

  • 管件

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