• Floating channel designed for bootstrap operation
Fully operational to +600V
Tolerant to negative transient voltage dV/dt immune
• Application- specific gate drive range:
Motor Drive: 12 to 20V (IR2127/IR2128)
Automotive: 9 to 20V (IR21271)
• Undervoltage lockout
• 3.3V, 5V and 15V input logic compatible
FAULT
•
• Output in phase with input (IR2127/IR21271)
• Output out of phase with input (IR2128)
Description
The IR2127/IR2128/IR21271(S) is a high voltage, high
speed power MOSFET and IGBT driver. Proprietar y
HVIC and latch immune CMOS technologies enable
ruggedized monolithic construction. The logic input is
compatible with standard CMOS or LSTTL outputs,
down to 3.3V. The protection circuity detects over-current in the driven power transistor and terminates the
gate drive voltage . An open drain
vided to indicate that an over-current shutdown has occurred. The output driver features a high pulse current
buffer stage designed for minimum cross-conduction.
The floating channel 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 volts.
lead indicates shutdown has occured
signal is pro-
FAULT
IR2127(S) / IR2128(S
IR21271(S
Product Summary
V
OFFSET
IO+/-200 mA / 420 mA
V
OUT
V
t
on/off
Packages
8-Lead PDIP
(IR2127/IR2128) (IR21271)
CSth
(typ.)200 & 150 ns
)
)
600V max.
12 - 20V 9 - 20V
250 mV or 1.8V
8-Lead SOIC
T ypical Connection
V
CC
IN
FAULT
(Refer to Lead Assignments for correct pin
configuration). This/These diagram(s) show
electrical connections only. Please refer to
our Application Notes and DesignTips for
proper circuit board layout.
www.irf.com1
V
CC
IN
FAULT
COM
HO
V
B
CS
V
S
IR2127/IR21271
FAULT
V
CC
IN
V
CC
IN
FAULT
COM
HO
V
B
CS
V
S
IR2128
IR2127(S) / IR21271(S) / IR2128(S)
Absolute Maximum Ratings
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to COM. The Thermal Resistance and Power Dissipation ratings are measured
under board mounted and still air conditions.
SymbolDefinitionMin.Max.Units
V
B
V
S
V
HO
V
CC
V
IN
V
FLT
V
CS
dVs/dtAllowable Offset Supply Voltage Transient—50V/ns
P
D
Rth
JA
T
J
T
S
T
L
High Side Floating Supply Voltage-0.3625
High Side Floating Offset VoltageVB - 25VB + 0.3
High Side Floating Output VoltageVS - 0.3V
The Input/Output logic timing diagram is shown in Figure 1. For proper operation the device should be used within the
recommended conditions. The VS offset rating is tested with all supplies biased at 15V differential.
SymbolDefinitionMin.Max.Units
V
B
V
S
V
HO
V
CC
V
IN
V
FLT
V
CS
T
A
Note 1: Logic operational for VS of -5 to +600V. Logic state held for VS of -5V to -VBS. (Please refer to the Design Tip
DT97-3 for more details).
2www.irf.com
High Side Floating Supply Voltage (IR2127/IR2128)VS + 12VS + 20
(IR21271)VS + 9VS + 20
High Side Floating Offset VoltageNote 1600
High Side Floating Output VoltageV
S
Logic Supply Voltage1020
Logic Input Voltage0V
FAULT Output Voltage0V
Current Sense Signal VoltageV
S
V
B
V
CC
CC
V
+ 5
S
Ambient Temperature-40125° C
IR2127(S) / IR21271(S) / IR2128(S)
Dynamic Electrical Characteristics
V
(VCC, VBS) = 15V, CL = 1000 pF and TA = 25°C unless otherwise specified. The dynamic electrical characteristics
BIAS
are measured using the test circuit shown in Figure 3.
SymbolDefinitionMin.T yp . Max. Units T est Conditions
t
on
t
off
t
t
t
bl
t
cs
t
flt
Static Electrical Characteristics
V
(VCC, VBS) = 15V and TA = 25°C unless otherwise specified. The VIN, VTH and IIN parameters are referenced to
BIAS
COM. The VO and IO parameters are referenced to VS.
SymbolDefinitionMin.T yp . Max. Units Test Conditions