Features
•Floating channel designed for bootstrap operation
Fully operational to +500V
Tolerant to negative transient voltage
dV/dt immune
•Gate drive supply range from 12 to 18V
•Undervoltage lockout
•Current detection and limiting loop to limit driven
power transistor current
•Error lead indicates fault conditions and programs
shutdown time
•Output in phase with input
•2.5V, 5V and 15V input logic compatible
•Also available LEAD-Free
Description
The IR2125(S) is a high voltage, high speed power
MOSFET and IGBT driver with over-current limiting
protection circuitry. Proprietary HVIC and latch im-
mune CMOS technologies enable ruggedized mono-
lithic construction. Logic inputs are compatible with
standard CMOS or LSTTL outputs, down to 2.5V
logic. The output driver features a high pulse current
CURRENT LIMITING SINGLE CHANNEL DRIVER
Product Summary
VOFFSET 500V max.
IO+/- 1A / 2A
VOUT 12 - 18V
VCSth 230 mV
ton/off (typ.) 150 & 150 ns
Packages
Typical Connection
buffer stage designed for minimum driver cross-conduction. The protection circuitry detects over-current in the
driven power transistor and limits the gate drive voltage. Cycle by cycle shutdown is programmed by an external
capacitor which directly controls the time interval between detection of the over-current limiting conditions and
latched shutdown. The floating channel can be used to drive an N-channel power MOSFET or IGBT in the high
or low side configuration which operates up to 500 volts.
IR2125(S) & (PbF)
Data Sheet No. PD60017 Rev.Q
www.irf.com 1
(Refer to Lead Assignments
for correct pin configura-
tion). This/These diagram(s)
show electrical connections
only. Please refer to our
Application Notes and
DesignTips for proper circuit
board layout.
8-Lead PDIP 16-Lead SOIC
(Wide Body)
IR2125(S) & (PbF)
2www.irf.com
Symbol Definition Min. Max. Units
VBHigh Side Floating Supply Voltage -0.3 525
VSHigh Side Floating Offset Voltage VB - 25 VB + 0.3
VHO High Side Floating Output Voltage VS - 0.3 VB + 0.3
VCC Logic Supply Voltage -0.3 25 V
VIN Logic Input Voltage -0.3 VCC + 0.3
VERR Error Signal Voltage -0.3 VCC + 0.3
VCS Current Sense Voltage VS - 0.3 VB + 0.3
dVs/dt Allowable Offset Supply Voltage Transient — 50 V/ns
PDPackage Power Dissipation @ TA ≤ +25°C (8 lead PDIP) — 1.0
(16 lead SOIC) — 1.25
RthJA Thermal Resistance, Junction to Ambient (8 lead PDIP) — 125
(16lLead SOIC) — 100
TJJunction Temperature — 150
TSStorage Temperature -55 150
TLLead Temperature (Soldering, 10 seconds) — 300
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 Definition Min. Max. Units
VBHigh Side Floating Supply Voltage VS + 12 VS + 18
VSHigh Side Floating Offset Voltage Note 1 500
VHO High Side Floating Output Voltage VSVB
VCC Logic Supply Voltage 0 18
VIN Logic Input Voltage 0 VCC
VERR Error Signal Voltage 0 VCC
VCS Current Sense Signal Voltage VSVB
TAAmbient Temperature -40 125 °C
Note 1: Logic operational for VS of -5 to +500V. Logic state held for VS of -5V to -VBS. (Please refer to the Design Tip
DT97-3 for more details).
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 VS offset rating is tested with all supplies biased at 15V differential.
W
°C/W
°C
V
www.irf.com 3
IR2125(S) & (PbF)
Symbol Definition Figure Min. Typ. Max. Units Test Conditions
VIH Logic “1” Input Voltage 14 2.2 — —
VIL Logic “0” Input Voltage 15 — — 0.8
VCSTH+ CS Input Positive Going Threshold 16 150 230 320
VCSTH- CS Input Negative Going Threshold 17 130 210 300
VOH High Level Output Voltage, VBIAS - VO18 — — 100 IO = 0A
VOL Low Level Output Voltage, VO19 — — 100 IO = 0A
ILK Offset Supply Leakage Current 20 — — 50 VB = VS = 500V
IQBS Quiescent VBS Supply Current 21 — 400 1000 VIN = VCS = 0V or 5V
IQCC Quiescent VCC Supply Current 22 — 700 1200 VIN = VCS = 0V or 5V
IIN+ Logic “1” Input Bias Current 23 — 4.5 10 µAV
IN = 5V
IIN- Logic “0” Input Bias Current 24 — — 1.0 VIN = 0V
ICS+ “High” CS Bias Current 25 — 4.5 10 VCS = 3V
ICS- “Low” CS Bias Current 26 — — 1.0 VCS = 0V
VBSUV+ VBS Supply Undervoltage Positive Going 27 8.5 9.2 10.0
Threshold
VBSUV- VBS Supply Undervoltage Negative Going 28 7.7 8.3 9.0
Threshold
VCCUV+ VCC Supply Undervoltage Positive Going 29 8.3 8.9 9.6
Threshold
VCCUV- VCC Supply Undervoltage Negative Going 30 7.3 8.0 8.7
Threshold
IERR ERR Timing Charge Current 31 65 100 130 VIN = 5V, VCS = 3V
ERR < VERR+
IERR+ ERR Pull-Up Current 32 8.0 15 — VIN = 5V, VCS = 3V
ERR > VERR+
IERR- ERR Pull-Down Current 33 16 30 — VIN = 0V
IO+ Output High Short Circuit Pulsed Current 34 1.0 1.6 — VO = 0V, VIN = 5V
PW ≤ 10 µs
IO- Output Low Short Circuit Pulsed Current 35 2.0 3.3 — VO = 15V, VIN = 0V
PW ≤ 10 µs
V
mV
mA
V
µA
A
Static Electrical Characteristics
VBIAS (VCC, VBS) = 15V and TA = 25°C unless otherwise specified. The VIN, VTH and IIN parameters are referenced to
COM. The VO and IO parameters are referenced to VS.
Dynamic Electrical Characteristics
VBIAS (VCC, VBS) = 15V, CL = 3300 pF and TA = 25°C unless otherwise specified. The dynamic electrical characteristics
are measured using the test circuit shown in Figures 3 through 6.
Symbol Definition Figure Min. Typ. Max. Units Test Conditions
ton Turn-On Propagation Delay 7 — 170 240 VIN = 0 & 5V
VS = 0 to 600V
toff Turn-Off Propagation Delay 8 — 200 270
tsd ERR Shutdown Propagation Delay 9 — 1.7 2.2 µs
trTurn-On Rise Time 10 — 43 60
tfTurn-Off Fall Time 11 — 26 35
tcs CS Shutdown Propagation Delay 12 — 0.7 1.2
terr CS to ERR Pull-Up Propagation Delay 13 — 9.0 12 CERR = 270 pF
ns
µs
ns
IR2125(S) & (PbF)
4www.irf.com
Lead Definitions
Symbol Description
VCC Logic and gate drive supply
IN Logic input for gate driver output (HO), in phase with HO
ERR Serves multiple functions; status reporting, linear mode timing and cycle by cycle logic
shutdown
COM Logic ground
VBHigh side floating supply
HO High side gate drive output
VSHigh side floating supply return
CS Current sense input to current sense comparator
Functional Block Diagram
Lead Assignments
8 Lead PDIP
IR2125
16 Lead SOIC (Wide Body)
IR2125S
Part Number
VCC
IN
ERR
COM
VB
HO
CS
VS
1
2
3
4
8
7
6
5
1
2
7
6
5
4
3
8
16
15
14
13
12
11
10
9
Vcc
IN
ERR
COM VS
CS
HO
VB
www.irf.com 5
IR2125(S) & (PbF)
tsd
HV=10 to 600V
ERR
HO
IR2125(S) & (PbF)
6www.irf.com
0.00
1.00
2.00
3.00
4.00
5.00
-50 -25 0 25 50 75 100 125
Temperature (°C)
ERR to Output Shutdown Delay Time (µs)
Max.
Typ.
0
100
200
300
400
500
-50 -25 0 25 50 75 100 125
Temperature (°C)
Turn-Off Delay Time (ns)
Max.
Typ.
0
100
200
300
400
500
-50 -25 0 25 50 75 100 125
Temperature (°C)
Turn-On Delay Time (ns)
Max.
Typ.
Figure 8A. Turn-Off Time vs. Temperature Figure 8B. Turn-Off Time vs. Voltage
Figure 7A. Turn-On Time vs. Temperature Figure 7B. Turn-On Time vs. Voltage
Figure 9B. ERR to Output Shutdown vs. Voltage
Figure 9A. ERR to Output Shutdown vs. Temperature
0
100
200
300
400
500
10 12 14 16 18 20
VBIAS Supply Voltage (V)
Turn-On Time (ns)
Max.
Typ.
0
100
200
300
400
500
10 12 14 16 18 20
VBIAS Supply Voltage (V)
Turn-Off Time (ns)
Max.
Typ.
0.00
1.00
2.00
3.00
4.00
5.00
10 12 14 16 18 20
VBIAS Supply Voltage (V)
ERR to Output Shutdown Delay Time (µs)
Max.
Typ.
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IR2125(S) & (PbF)
0.00
0.40
0.80
1.20
1.60
2.00
-50 -25 0 25 50 75 100 125
Temperature (°C)
CS to Output Shutdown Delay Time (µs)
Max.
Typ.
0
20
40
60
80
100
-50 -25 0 25 50 75 100 125
Temperature (°C)
Turn-On Rise Time (ns)
Max.
Typ.
Figure 11A. Turn-Off Fall Time vs. Temperature Figure 11B. Turn-Off Fall Time vs. Voltage
Figure 10A. Turn-On Rise Time vs. Temperature Figure 10B. Turn-On Rise Time vs. Voltage
Figure 12A. CS to Output Shutdown vs. Temperature Figure 12B. CS to Output Shutdown vs. Voltage
0
20
40
60
80
100
10 12 14 16 18 20
VBIAS Supply Voltage (V)
Turn-On Rise Time (ns)
Max.
Typ.
0
20
40
60
80
100
-50 -25 0 25 50 75 100 125
Temperature (°C)
Turn-Off Fall Time (ns)
Max.
Typ.
0
20
40
60
80
100
10 12 14 16 18 20
VBIAS Supply Voltage (V)
Turn-Off Fall Time (ns)
Max.
Typ.
0.00
0.40
0.80
1.20
1.60
2.00
10 12 14 16 18 20
VBIAS Supply Voltage (V)
CS to Output Shutdown Delay Time (µs)
Max.
Typ.
IR2125(S) & (PbF)
8www.irf.com
0.00
1.00
2.00
3.00
4.00
5.00
-50 -25 0 25 50 75 100 125
Temperature (°C)
Logic "1" Input Threshold (V)
Min.
Figure 14A. Logic “1” Input Threshold vs.
Temperature
Figure 14B. Logic “1” Input Threshold vs. Voltage
Figure 13B. CS to ERR Pull-Up vs. VoltageFigure 13A. CS to ERR Pull-Up vs. Temperature
Figure 15A. Logic “0” Input Threshold vs.
Temperature
Figure 15B. Logic “0” Input Threshold vs. Voltage
0.0
4.0
8.0
12.0
16.0
20.0
10 12 14 16 18 20
VBIAS Supply Voltage (V)
CS to ERR Pull-Up Delay Time (µs)
Max.
Typ.
0.0
4.0
8.0
12.0
16.0
20.0
-50 -25 0 25 50 75 100 125
Temperature (°C)
CS to ERR Pull-Up Delay Time (µs)
Max.
Typ.
0.00
1.00
2.00
3.00
4.00
5.00
10 12 14 16 18 20
VCC Logic Supply Voltage (V)
Logic "1" Input Threshold (V)
Min.
0.00
1.00
2.00
3.00
4.00
5.00
10 12 14 16 18 20
VCC Logic Supply Voltage (V)
Logic "0" Input Threshold (V)
Max.
0.00
1.00
2.00
3.00
4.00
5.00
-50 -25 0 25 50 75 100 125
Temperature (°C)
Logic "0" Input Threshold (V)
Max.
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IR2125(S) & (PbF)
0.00
0.20
0.40
0.60
0.80
1.00
-50 -25 0 25 50 75 100 125
Temperature (°C)
High Level Output Voltage (V)
Max.
0
100
200
300
400
500
-50 -25 0 25 50 75 100 125
Temperature (°C)
CS Input Positive Going Threshold (mV)
Min.
Typ.
Max.
Figure 17A. CS Input Threshold (-) vs. Temperature Figure 17B. CS Input Threshold (-) vs. Voltage
Figure 16A. CS Input Threshold (+) vs.
Temperature
Figure 16B. CS Input Threshold (+) vs. Voltage
Figure 18A. High Level Output vs. Temperature Figure 18B. High Level Output vs. Voltage
0
100
200
300
400
500
10 12 14 16 18 20
VBS Floating Supply Voltage (V)
CS Input Positive Going Threshold (mV)
Min.
Typ.
Max.
0
100
200
300
400
500
-50 -25 0 25 50 75 100 125
Temperature (°C)
CS Input Negative Going Threshold (mV)
Max.
Typ.
Min.
0
100
200
300
400
500
10 12 14 16 18 20
VBS Floating Supply Voltage (V)
CS Input Negative Going Threshold (mV)
Min.
Typ.
Max.
0.00
0.20
0.40
0.60
0.80
1.00
10 12 14 16 18 20
VBS Floating Supply Voltage (V)
High Level Output Voltage (V)
Max.
IR2125(S) & (PbF)
10 www.irf.com
0.00
0.40
0.80
1.20
1.60
2.00
-50 -25 0 25 50 75 100 125
Temperature (°C)
VBS Supply Current (mA)
Max.
Typ.
0
100
200
300
400
500
-50 -25 0 25 50 75 100 125
Temperature (°C)
Offset Supply Leakage Current (µA)
Max.
0.00
0.20
0.40
0.60
0.80
1.00
-50 -25 0 25 50 75 100 125
Temperature (°C)
Low Level Output Voltage (V)
Max.
Figure 20A. Offset Supply Current vs. Temperature Figure 20B. Offset Supply Current vs. Voltage
Figure 19A. Low Level Output vs. Temperature Figure 19B. Low Level Output vs. Voltage
Figure 21A. VBS Supply Current vs. Temperature Figure 21B. VBS Supply Current vs. Voltage
0.00
0.20
0.40
0.60
0.80
1.00
10 12 14 16 18 20
VBS Floating Supply Voltage (V)
Low Level Output Voltage (V)
Max.
0
100
200
300
400
500
0 100 200 300 400 500
VB Boost Voltage (V)
Offset Supply Leakage Current (µA)
Max.
0.00
0.40
0.80
1.20
1.60
2.00
10 12 14 16 18 20
VBS Floating Supply Voltage (V)
VBS Supply Current (mA)
Max.
Typ.
www.irf.com 11
IR2125(S) & (PbF)
0.00
1.00
2.00
3.00
4.00
5.00
-50 -25 0 25 50 75 100 125
Temperature (°C)
Logic "0" Input Bias Current (µA)
Max.
0
5
10
15
20
25
-50 -25 0 25 50 75 100 125
Temperature (°C)
Logic "1" Input Bias Current (µA)
Max.
Typ.
0.00
0.40
0.80
1.20
1.60
2.00
-50 -25 0 25 50 75 100 125
Temperature (°C)
VCC Supply Current (mA)
Max.
Typ.
Figure 23A. Logic “1” Input Current vs.
Temperature
Figure 23B. Logic “1” Input Current vs. Voltage
Figure 22A. VCC Supply Current vs. Temperature Figure 22B. VCC Supply Current vs. Voltage
Figure 24A. Logic “0” Input Current vs.
Temperature
Figure 24B. Logic “0” Input Current vs. Voltage
0.00
0.40
0.80
1.20
1.60
2.00
10 12 14 16 18 20
VCC Logic Supply Voltage (V)
VCC Supply Current (mA)
Max.
Typ.
0
5
10
15
20
25
10 12 14 16 18 20
VCC Logic Supply Voltage (V)
Logic "1" Input Bias Current (µA)
Max.
Typ.
0.00
1.00
2.00
3.00
4.00
5.00
10 12 14 16 18 20
VCC Logic Supply Voltage (V)
Logic "0" Input Bias Current (µA)
Max.
IR2125(S) & (PbF)
12 www.irf.com
6.0
7.0
8.0
9.0
10.0
11.0
-50 -25 0 25 50 75 100 125
Temperature (°C)
VBS Undervoltage Lockout + (V)
Max.
Typ.
Min.
0.00
1.00
2.00
3.00
4.00
5.00
-50 -25 0 25 50 75 100 125
Temperature (°C)
"Low" CS Bias Current (µA)
Max.
0.0
5.0
10.0
15.0
20.0
25.0
-50 -25 0 25 50 75 100 125
Temperature (°C)
"High" CS Bias Current (µA)
Max.
Typ.
Figure 26A. “Low” CS Bias Current vs. Temperature Figure 26B. “Low” CS Bias Current vs. Voltage
Figure 25A. “High” CS Bias Current vs.
Temperature
Figure 25B. “High” CS Bias Current vs. Voltage
Figure 27. VBS Undervoltage (+) vs. Temperature Figure 28. VBS Undervoltage (-) vs. Temperature
0.0
5.0
10.0
15.0
20.0
25.0
10 12 14 16 18 20
VBS Floating Supply Voltage (V)
"High" CS Bias Current (µA)
Max.
Typ.
0.00
1.00
2.00
3.00
4.00
5.00
10 12 14 16 18 20
VBS Floating Supply Voltage (V)
"Low" CS Bias Current (µA)
Max.
6.0
7.0
8.0
9.0
10.0
11.0
-50 -25 0 25 50 75 100 125
Temperature (°C)
VBS Undervoltage Lockout - (V)
Max.
Typ.
Min.
www.irf.com 13
IR2125(S) & (PbF)
0
50
100
150
200
250
-50 -25 0 25 50 75 100 125
Temperature (°C)
ERR Timing Charge Current (µA)
Max.
Typ.
Min.
6.0
7.0
8.0
9.0
10.0
11.0
-50 -25 0 25 50 75 100 125
Temperature (°C)
VCC Undervoltage Lockout + (V)
Max.
Typ.
Min.
Figure 31A. ERR Timing Charge Current vs.
Temperature
Figure 31B. ERR Timing Charge Current vs.
Voltage
Figure 29. VCC Undervoltage (+) vs. Temperature Figure 30. VCC Undervoltage (-) vs. Temperature
Figure 32A. ERR Pull-Up Current vs. Temperature Figure 32B. ERR Pull-Up Current vs. Voltage
6.0
7.0
8.0
9.0
10.0
11.0
-50 -25 0 25 50 75 100 125
Temperature (°C)
VCC Undervoltage Lockout - (V)
Max.
Typ.
Min.
0
50
100
150
200
250
10 12 14 16 18 20
VCC Logic Supply Voltage (V)
ERR Timing Charge Current (µA)
Min.
Typ.
Max.
0.0
5.0
10.0
15.0
20.0
25.0
-50 -25 0 25 50 75 100 125
Temperature (°C)
ERR Pull-Up Current (mA)
Typ.
Min.
0.0
5.0
10.0
15.0
20.0
25.0
10 12 14 16 18 20
VCC Logic Su pply Vol ta ge (V)
ERR Pull-Up Current (mA
)
Min.
Typ.
IR2125(S) & (PbF)
14 www.irf.com
0.00
1.00
2.00
3.00
4.00
5.00
-50 -25 0 25 50 75 100 125
Temperature (°C)
Output Sink Current (A)
Typ.
Min.
0.00
0.50
1.00
1.50
2.00
2.50
-50 -25 0 25 50 75 100 125
Temperature (°C)
Output Source Current (A)
Typ.
Min.
0
10
20
30
40
50
-50 -25 0 25 50 75 100 125
Temperature (°C)
ERR Pull-Down Current (mA)
Typ.
Min.
Figure 34A. Output Source Current vs.
Temperature
Figure 34B. Output Source Current vs. Voltage
Figure 33A. ERR Pull-Down Current vs.Temperature Figure 33B. ERR Pull-Down Current vs. Voltage
Figure 35A. Output Sink Current vs.Temperature Figure 35B. Output Sink Current vs. Voltage
0
10
20
30
40
50
10 12 14 16 18 20
VCC Logic Su pply Volta ge ( V)
ERR Pull-Down Current (mA)
Max.
Typ.
0.00
0.50
1.00
1.50
2.00
2.50
10 12 14 16 18 20
VBS Floating Supply Voltage (V)
Output Source Current (A)
Min.
Typ.
0.00
1.00
2.00
3.00
4.00
5.00
10 12 14 16 18 20
VBS Floating Supply Voltage (V)
Output Sink Current (A)
Min.
Typ.
www.irf.com 15
IR2125(S) & (PbF)
Figure 37. Maximum VS Negative Offset vs. Supply
Voltage
-15.00
-12.00
-9.00
-6.00
-3.00
0.00
10 12 14 16 18 20
VBS Floating Supply Voltage (V)
VS Offset Supply Voltage (V)
Typ.
Figure 36A. Turn-On Time vs. Input Voltage Figure 36B. Turn-Off Time vs. Input Voltage
0
50
100
150
200
250
300
0 2 4 6 8 101214161820
Input Voltage (V)
Turn-On Delay Time (ns)
0
50
100
150
200
250
300
0246810121416182
0
Max.
Typ.
Input Voltage (V)
Turn-Off Delay Time (ns)
IR2125(S) & (PbF)
16 www.irf.com
01-6014
01-3003 01 (MS-001AB)
8-Lead PDIP
Case outlines
16-Lead SOIC (wide body) 01 6015
01-3014 03 (MS-013AA)
www.irf.com 17
IR2125(S) & (PbF)
LEADFREE PART MARKING INFORMATION
ORDER INFORMATION
Basic Part (Non-Lead Free)
8-Lead PDIP IR2125 order IR2125
16-Lead SOIC IR2125S order IR2125S
Leadfree Part
8-Lead PDIP IR2125 order IR2125PbF
16-Lead SOIC IR2125S order IR2125SPbF
Lead Free Released
Non-Lead Free
Released
Part number
Date code
IRxxxxxx
YWW?
?XXXX
Pin 1
Identifier
IR logo
Lot Code
(Prod mode - 4 digit SPN code)
Assembly site code
Per SCOP 200-002
P
?MARKING CODE
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105
This product has been qualified per industrial level
Data and specifications subject to change without notice. 9/12/2004
