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IR2121 Datasheet

  • IR2121

  • CURRENT LIMITING LOW SIDE DRIVER

  • 15頁

  • IRF

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Data Sheet No. PD-6.018D
IR2121
CURRENT LIMITING LOW SIDE DRIVER
Features
n
Gate drive supply range from 12 to 18V
n
Undervoltage lockout
n
Current detection and limiting loop to limit driven
power transistor current
n
Error lead indicates fault conditions and programs
shutdown time
n
Output in phase with input
Product Summary
V
OFFSET
I
O
+/-
V
OUT
V
CSth
t
on/off
(typ.)
5V max.
1A / 2A
12 - 18V
230 mV
150 & 150 ns
Description
The IR2121 is a high speed power MOSFET and
IGBT driver with over-current limiting protection cir-
cuitry. Latch immune CMOS technology enables rug-
gedized monolithic construction. Logic inputs are
compatible with standard CMOS or LSTTL outputs.
The output driver features a high pulse current buffer
stage designed for minimum cross-conduction. The
protection circuitry detects over-current in the driven
power transistor and limits the gate drive voltage.
Cycle-by-cycle shutdown is programmed by an ex-
ternal capacitor which directly controls the time in-
terval between detection of the over-current limiting
condition and latched shutdown. The output can be
used to drive an N-channel power MOSFET or IGBT
in the low side configuration.
Package
Typical Connection
TO
LOAD
V
CC
IN
V
CC
IN
ERR
COM
V
CC
OUT
CS
V
S
To Order
C
ONTROL
I
NTEGRATED
C
IRCUIT
D
ESIGNERS聮
M
ANUAL
B-91

IR2121 產(chǎn)品屬性

  • 50

  • 集成電路 (IC)

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

  • -

  • 低端

  • 非反相

  • 150ns

  • 1.6A

  • 1

  • 1

  • -

  • 12 V ~ 18 V

  • -40°C ~ 125°C

  • 通孔

  • 8-DIP（0.300"，7.62mm）

  • 8-DIP

  • 管件

  • *IR2121

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