Data Sheet No. PD 60299
IRS212(7, 71, 8, 81)(S)PbF
CURRENT SENSING SINGLE CHANNEL DRIVER
Features
? Floating channel designed for bootstrap operation
Product Summary
?
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)
V OFFSET
I O +/-
600 V max.
200 mA / 420 mA
?
?
?
?
?
?
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
V OUT 12 V - 20V 9 V - 20 V
V CSth 250 mV or 1.8 V
(IRS2127/IR2128) (IRS21271/IR21281)
t on/off (typ.) 15 0 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
CMOS or LSTTL outputs, down to 3.3 V. The protec-
tion circuity detects over-current in the driven power
Packages
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
IN
FAULT
COM
V B
HO
CS
V S
IRS2127/IRS21271
V CC
V CC
V B
(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.
www.irf.com
IN
FAULT
IN
FAULT
COM
HO
CS
V S
IRS2128/IRS21281
1
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