Data Sheet No. PD60143K
IR2127/IR2128
IR21271/IR21281
CURRENT SENSING SINGLE CHANNEL DRIVER
Features
•
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/IR21281)
Undervoltage lockout
5V Schmitt-triggered input logic
FAULT
lead indicates shutdown has occured
Output in phase with input (IR2127/IR21271)
Product Summary
V
OFFSET
I
O
+/-
V
OUT
V
CSth
t
on/off
(typ.)
600V max.
200 mA / 420 mA
12 - 20V or 9 - 20V
250 mV or 1.8V
200 & 150 ns
•
•
•
•
•
Output out of phase with input (IR2128/IR21281)
Description
The IR2127/IR2128/IR21271/IR21281 is a high volt-
age, high speed power MOSFET and IGBT driver. Pro-
prietary HVIC and latch immune CMOS technologies
enable ruggedized monolithic construction. The logic
input is compatible with standard CMOS or LSTTL out-
puts. The protection 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 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.
Packages
8 Lead PDIP
8 Lead SOIC
Typical Connection
V
CC
IN
FAULT
V
CC
IN
FAULT
COM
V
B
HO
CS
V
S
IR2127/IR21271
V
CC
IN
FAULT
V
CC
IN
FAULT
COM
V
B
HO
CS
V
S
IR2128/IR21281
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1
IR2127/IR2128
IR21271/IR21281
Absolute Maximum Ratings
Absolute Maximum Ratings indicate sustained limits beyond which damage to the device may occur. All voltage param-
eters are absolute voltages referenced to COM. The Thermal Resistance and Power Dissipation ratings are measured
under board mounted and still air conditions.
Symbol
V
B
V
S
V
HO
V
CC
V
IN
V
FLT
V
CS
dV
s
/dt
P
D
Rth
JA
T
J
T
S
T
L
Definition
High Side Floating Supply Voltage
High Side Floating Offset Voltage
High Side Floating Output Voltage
Logic Supply Voltage
Logic Input Voltage
FAULT Output Voltage
Current Sense Voltage
Allowable Offset Supply Voltage Transient
Package Power Dissipation @ T
A
≤
+25°C
Thermal Resistance, Junction to Ambient
Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 seconds)
(8 Lead DIP)
(8 Lead SOIC)
(8 Lead DIP)
(8 Lead SOIC)
Min.
-0.3
V
B
- 25
V
S
- 0.3
-0.3
-0.3
-0.3
V
S
- 0.3
—
—
—
—
—
—
-55
—
Max.
625
V
B
+ 0.3
V
B
+ 0.3
25
V
CC
+ 0.3
V
CC
+ 0.3
V
B
+ 0.3
50
1.0
0.625
125
200
150
150
300
Units
V
V/ns
W
°C/W
°C
Recommended Operating Conditions
The Input/Output logic timing diagram is shown in Figure 1. For proper operation the device should be used within the
recommended conditions. The V
S
offset rating is tested with all supplies biased at 15V differential.
Symbol
V
B
V
S
V
HO
V
CC
V
IN
V
FLT
V
CS
T
A
Definition
High Side Floating Supply Voltage
High Side Floating Offset Voltage
High Side Floating Output Voltage
Logic Supply Voltage
Logic Input Voltage
FAULT Output Voltage
Current Sense Signal Voltage
Ambient Temperature
(IR2127/IR2128)
(IR21271/IR21281)
Min.
V
S
+ 12
V
S
+ 9
Note 1
V
S
10
0
0
V
S
-40
Max.
V
S
+ 20
V
S
+ 20
600
V
B
20
V
CC
V
CC
V
S
+ 5
125
Units
V
°C
Note 1: Logic operational for V
S
of -5 to +600V. Logic state held for V
S
of -5V to -V
BS
.
2
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IR2127/IR2128
IR21271/IR21281
Dynamic Electrical Characteristics
V
BIAS
(V
CC
, V
BS
) = 15V, C
L
= 1000 pF and T
A
= 25°C unless otherwise specified. The dynamic electrical characteristics
are measured using the test circuit shown in Figure 3.
Symbol
t
on
t
off
t
r
t
f
t
bl
t
cs
t
flt
Definition
Turn-On Propagation Delay
Turn-Off Propagation Delay
Turn-On Rise Time
Turn-Off Fall Time
Start-Up Blanking Time
CS Shutdown Propagation Delay
CS to FAULT Pull-Up Propagation Delay
Min.
—
—
—
—
500
—
—
Typ. Max. Units Test Conditions
200
150
80
40
700
240
340
250
200
130
65
900
360
510
ns
V
S
= 0V
V
S
= 600V
Static Electrical Characteristics
V
BIAS
(V
CC
, V
BS
) = 15V and T
A
= 25°C unless otherwise specified. The V
IN
, V
TH
and I
IN
parameters are referenced to
COM. The V
O
and I
O
parameters are referenced to V
S
.
Symbol
V
IH
V
IL
V
CSTH+
V
OH
V
OL
I
LK
I
QBS
I
QCC
I
IN+
I
IN-
I
CS+
I
CS-
V
BSUV+
V
BSUV-
I
O+
I
O-
Ron, FLT
Definition
Logic “1” Input Voltage
Logic “0” Input Voltage
Logic “0” Input Voltage
Logic “1” Input Voltage
CS Input Positive
Going Threshold
Low Level Output Voltage, V
O
Offset Supply Leakage Current
Quiescent V
BS
Supply Current
Quiescent V
CC
Supply Current
Logic “1” Input Bias Current
Logic “0” Input Bias Current
“High” CS Bias Current
“High” CS Bias Current
V
BS
Supply Undervoltage
Positive Going Threshold
V
BS
Supply Undervoltage
Negative Going Threshold
(IR2127/IR2128)
(IR21271/IR21281)
(IR2127/IR2128)
(IR21271/IR21281)
(IR2127/IR21271)
(IR2128/IR21281)
(IR2127/IR21271)
(IR2128/IR21281)
(IR2127/IR2128)
(IR21271/IR21281)
Min.
3.0
—
180
—
—
—
—
—
—
—
—
—
—
8.8
6.3
7.5
6.0
200
420
—
Typ. Max. Units Test Conditions
—
—
250
1.8
—
—
—
200
60
7.0
—
—
—
10.3
7.2
9.0
6.8
250
500
125
—
V
0.8
320
—
100
100
50
400
120
15
1.0
1.0
1.0
11.8
8.2
10.6
7.7
—
mA
—
—
Ω
V
O
= 0V, V
IN
= 5V
PW
≤
10 µs
V
O
= 15V, V
IN
= 0V
PW
≤
10 µs
µA
mV
V
mV
I
O
= 0A
I
O
= 0A
V
B
= V
S
= 600V
V
IN
= 0V or 5V
V
IN
= 5V
V
IN
= 0V
V
CS
= 3V
V
CS
= 0V
V
CC
= 10V to 20V
High Level Output Voltage, V
BIAS
- V
O
V
Output High Short Circuit Pulsed Current
Output Low Short Circuit Pulsed Current
FAULT - Low on Resistance
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3
IR2127/IR2128
IR21271/IR21281
Functional Block Diagram IR2127/IR21271
V
CC
UV
DETECT
UP
SHIFTERS
IN
PULSE
GEN
V
B
DELAY
FAULT
PULSE
FILTER
DOWN
SHIFTER
PULSE
GEN
Q
R
S
-
+
CS
V
S
HV
LEVEL
SHIFT
V
B
R
R
S
Q
BUFFER
PULSE
FILTER
HO
Q
R
S
COM
Functional Block Diagram IR2128/IR21281
V
B
UV
DETECT
UP
SHIFTERS
IN
PULSE
GEN
V
B
DELAY
FAULT
PULSE
FILTER
DOWN
SHIFTER
PULSE
GEN
Q
R
S
-
+
CS
V
S
HV
LEVEL
SHIFT
V
CC
5V
R
R
S
Q
BUFFER
PULSE
FILTER
HO
Q
R
S
COM
4
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IR2127/IR2128
IR21271/IR21281
Lead Definitions
Symbol
V
CC
IN
FAULT
COM
V
B
HO
V
S
CS
Description
Logic and gate drive supply
Logic input for gate driver output (HO), in phase with HO (IR2127/IR21271)
out of phase with HO (IR2128/IR21281)
Indicates over-current shutdown has occurred, negative logic
Logic ground
High side floating supply
High side gate drive output
High side floating supply return
Current sense input to current sense comparator
Lead Assignments
8 Lead PDIP
8 Lead SOIC
IR2127/IR21271
IR2127S/IR21271S
8 Lead PDIP
8 Lead SOIC
IR2128/IR21281
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IR2128S/IR21281S
5
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