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IRS21271STRPBF

CURRENT SENSING SINGLE CHANNEL DRIVER

International Rectifier 

Data Sheet No. PD60299

IRS212(7, 71, 8, 81)(S)PbF

CURRENT SENSING SINGLE CHANNEL DRIVER

Features

Product Summary

• Floating channel designed for bootstrap operation

Fully operational to +600 V

Tolerant to negative transient voltage dV/dt immune

• Application-specific gate drive range:

Motor Drive: 12 V to 20 V (IRS2127/IRS2128)

Automotive: 9 V to 20 V (IRS21271/IRS21281)

• Undervoltage lockout

• 3.3 V, 5 V, and 15 V input logic compatible

• FAULT lead indicates shutdown has occured

• Output in phase with input (IRS2127/IRS21271)

• Output out of phase with input (IRS2128/IRS21281)

• RoHS compliant

VOFFSET

600 V max.

IO+/-

200 mA / 420 mA

VOUT 12 V - 20V 9 V - 20 V

(IRS2127/IR2128) (IRS21271/IR21281)

VCSth

250 mV or 1.8 V

ton/off (typ.) 150 ns & 150 ns

Description

The IRS2127/IRS2128/IRS21271/IRS21281 are

high voltage, high speed power MOSFET and IGBT

drivers. Proprietary HVIC and latch immune CMOS

technologies enable ruggedized monolithic construc-

tion. The logic input is compatible with standard

Packages

CMOS or LSTTL outputs, down to 3.3 V. The protec-

tion circuity detects over-current in the driven power

transistor and terminates the gate drive voltage. An

open drain FAULT signal is provided to indicate that

8-Lead PDIP

8-Lead SOIC

an over-current shutdown has occurred. The output

driver features a high pulse current buffer stage designed for minimum cross-conduction. The floating chan-

nel can be used to drive an N-channel power MOSFET or IGBT in the high-side or low-side configuration which

operates up to 600 V.

Typical Connection

V CC

IN

FAULT

V CC

VB

IN

HO

FAULT

CS

COM

VS

IRS2127/IRS21271

V CC

IN

FAULT

(Refer to Lead Assignments for correct pin configuration).

These diagrams show electrical connections only. Please

refer to our Application Notes and DesignTips for proper

circuit board layout.

V CC

IN

FAULT

COM

VB

HO

CS

VS

IRS2128/IRS21281

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