Data Sheet No. PD60299
IRS212(7, 71, 8, 81)(S)PbF
CURRENT SENSING SINGLE CHANNEL DRIVER
Features
•
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
Product Summary
V
OFFSET
I
O
+/-
V
OUT
V
CSth
t
on/off
(typ.)
600 V max.
200 mA / 420 mA
12 V - 20V
(IRS2127/IR2128)
9 V - 20 V
(IRS21271/IR21281)
250 mV or 1.8 V
150
ns & 150 ns
Packages
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
transistor and terminates the gate drive voltage. An
8-Lead PDIP
8-Lead SOIC
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 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
Description
V
CC
IN
FAULT
V
CC
IN
FAULT
COM
V
B
HO
CS
V
S
IRS2127/IRS21271
(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
V
CC
IN
FAULT
COM
V
B
HO
CS
V
S
IRS2128/IRS21281
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1
IRS212(7, 71, 8, 81)(S)PbF
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 Fig. 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 15 V 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
(IRS2127/IRS2128)
(IRS21271/IRS21281)
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 V to +600 V. Logic state held for V
S
of -5 V to -V
BS
. (Please refer to the Design Tip
DT97-3 for more details).
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2
IRS212(7, 71, 8, 81)(S)PbF
Dynamic Electrical Characteristics
V
BIAS
(V
CC
, V
BS
) = 15 V, C
L
= 1000 pF and T
A
= 25 °C unless otherwise specified. The dynamic electrical characteristics
are measured using the test circuit shown in Fig. 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.
—
—
—
—
550
—
—
Typ. Max. Units Test Conditions
150
150
80
40
750
65
270
200
200
130
65
950
360
510
ns
V
S
= 0 V
V
S
= 600 V
Static Electrical Characteristics
V
BIAS
(V
CC
, V
BS
) = 15 V 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
(IRS2127/IRS21271)
(IRS2128/IRS21281)
(IRS2127/IRS21271)
(IRS2128/IRS21281)
(IRS2127/IRS2128)
(IRS21271/IRS21281)
Min.
2.5
—
180
1.5
—
—
—
—
—
—
—
—
—
(IRS2127/IRS2128)
(IRS21271/IRS21281)
(IRS2127/IRS2128)
(IRS21271/IRS21281)
8.8
6.3
7.5
6.0
200
420
—
Typ. Max. Units Test Conditions
—
—
250
1.8
0.05
0.02
—
300
60
7.0
—
—
—
10.3
7.2
9.0
6.8
290
600
125
—
V
0.8
320
2.1
0.2
0.1
50
800
120
15
5.0
5.0
5.0
11.8
8.2
10.6
7.7
—
mA
—
—
Ω
V
O
= 0 V, V
IN
= 5 V
PW
≤
10 µs
V
O
= 15 V, V
IN
= 0 V
PW
≤
10 µs
µA
V
I
O
= 2 mA
V
B
= V
S
= 600 V
V
IN
= 0 V or 5 V
V
IN
= 5 V
V
IN
= 0 V
V
CS
= 3 V
V
CS
= 0 V
mV
V
CC
= 10 V to 20 V
High level output voltage, V
BIAS
- V
O
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
V
Output high short circuit pulsed current
Output low short circuit pulsed current
FAULT - low on resistance
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3
IRS212(7, 71, 8, 81)(S)PbF
Functional Block Diagram IRS2127/IRS21271
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 IRS2128/IRS21281
V
B
5V
UP
SHIFTERS
IN
PULSE
GEN
V
B
DELAY
FAULT
PULSE
FILTER
DOW N
SHIFTER
PULSE
GEN
Q
R
S
-
+
CS
V
S
UV
DETECT
HV
LEVEL
SHIFT
V
CC
R
R
S
Q
BUFFER
PULSE
FILTER
HO
Q
R
S
COM
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4
IRS212(7, 71, 8, 81)(S)PbF
Lead Definitions
Symbol
V
CC
IN
FAULT
Description
Logic and gate drive supply
Logic input for gate driver output (HO), in phase with HO (IRS2127/IRS21271)
out of phase with HO (IRS2128/IRS21281)
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
COM
V
B
HO
V
S
CS
Lead Assignments
1
2
3
4
VCC
IN
FAULT
COM
VB
HO
CS
VS
8
7
6
5
1
2
3
4
VCC
IN
FAULT
COM
VB
HO
CS
VS
8
7
6
5
8 Lead PDIP
8 Lead SOIC
IRS2127/IRS21271
IRS2127S/IRS21271S
1
2
3
4
VCC
IN
FAULT
COM
VB
HO
CS
VS
8
7
6
5
1
2
3
4
VCC
IN
FAULT
COM
VB
HO
CS
VS
8
7
6
5
8 Lead PDIP
8 Lead SOIC
IRS2128/IRS21281
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IRS2128S/IRS21281S
5
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