Preliminary Data Sheet No. PD60034-J
IR2151
Features
•
Floating channel designed for bootstrap operation
Fully operational to +600V
Tolerant to negative transient voltage
dV/dt immune
Undervoltage lockout
Programmable oscillator frequency
(NOTE: For new designs, we
recommend IR’s new products IR2153 and IR21531)
SELF-OSCILLATING HALF-BRIDGE DRIVER
Product Summary
V
OFFSET
Duty Cycle
I
O
+/-
V
OUT
Deadtime (typ.)
600V max.
50%
100 mA / 210 mA
10 - 20V
1.2 µs
•
•
f
=
•
Matched propagation delay for both channels
•
Low side output in phase with R
T
1
1.4
×
(R
T
+
75
Ω
)
×
C
T
Description
The IR2151 is a high voltage, high speed, self-os-
cillating power MOSFET and IGBT driver with both
high and low side referenced output channels. Pro-
prietary HVIC and latch immune CMOS technologies
enable ruggedized monolithic construction. The front
end features a programmable oscillator which is simi-
lar to the 555 timer. The output drivers feature a high
pulse current buffer stage and an internal deadtime
designed for minimum driver cross-conduction. Propa-
gation delays for the two channels are matched to sim-
plify use in 50% duty cycle applications. The floating
channel can be used to drive an N-channel power
MOSFET or IGBT in the high side configuration that
operates off a high voltage rail up to 600 volts.
Packages
8 Lead PDIP
8 Lead SOIC
Typical Connection
up to 600V
V
CC
R
T
C
T
COM
V
B
HO
V
S
LO
TO
LOAD
(Refer to Lead Assignment diagram for correct pin configuration)
1
IR2151
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
LO
V
RT
V
CT
I
CC
I
RT
dV
s
/dt
P
D
R
θJA
T
J
T
S
T
L
Definition
High side floating supply voltage
High side floating supply offset voltage
High side floating output voltage
Low side output voltage
R
T
voltage
C
T
voltage
Supply current (note 1)
R
T
output current
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
—
-5
—
—
—
—
—
—
-55
—
Max.
625
V
B
+ 0.3
V
B
+ 0.3
V
CC
+ 0.3
V
CC
+ 0.3
V
CC
+ 0.3
25
5
50
1.0
0.625
125
200
150
150
300
Units
V
mA
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
LO
I
CC
T
A
Note 1:
Definition
High side sloating supply absolute voltage
High side floating supply offset voltage
High side floating output voltage
Low side output voltage
Supply current (note 1)
Ambient temperature
Min.
V
S
+ 10
—
V
S
0
—
-40
Max.
V
S
+ 20
600
V
B
V
CC
5
125
Units
V
mA
°C
Because of the IR2151’s application specificity toward off-line supply systems, this IC contains a zener clamp
structure between the chip V
CC
and COM which has a nominal breakdown voltage of 15.6V. Therefore, the IC
supply voltage is normally derived by forcing current into the supply lead (typically by means of a high value
resistor connected between the chip V
CC
and the rectified line voltage and a local decoupling capacitor from
V
CC
to COM) and allowing the internal zener clamp circuit to determine the nominal supply voltage. There-
fore, this circuit should not be driven by a DC, low impedance power source of greater than V
CLAMP
.
2
IR2151
Dynamic Electrical Characteristics
V
BIAS
(V
CC
, V
BS
) = 12V, C
L
= 1000 pF and T
A
= 25°C unless otherwise specified.
Symbol
t
r
t
f
DT
D
Turn-on rise time
Turn-off fall time
Deadtime
R
T
duty cycle
Definition
Min. Typ. Max. Units Test Conditions
—
—
0.50
48
80
40
1.20
50
120
70
2.25
52
ns
µs
%
Static Electrical Characteristics
V
BIAS
(V
CC
, V
BS
) = 12V, C
L
= 1000 pF, C
T
= 1 nF 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 COM and are applicable to the
respective output leads: HO or LO.
Symbol
f
OSC
V
CLAMP
V
CT+
V
CT-
V
CTUV
V
RT+
V
RT-
V
RTUV
V
OH
V
OL
I
LK
I
QBS
I
QCC
I
CT
V
CCUV+
V
CCUV-
V
CCUVH
I
O+
I
O-
Definition
Oscillator frequency
V
CC
zener shunt clamp voltage
2/3 V
CC
threshold
1/3 V
CC
threshold
C
T
undervoltage lockout
R
T
high level output voltage, V
CC
- R
T
R
T
Low Level Output Voltage
R
T
Undervoltage Lockout, V
CC
- R
T
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
C
T
Input Current
V
CC
Supply Undervoltage Positive Going
Threshold
V
CC
Supply Undervoltage Negative Going
Threshold
V
CC
Supply Undervoltage Lockout Hysteresis
Output High Short Circuit Pulsed Current
Output Low Short Circuit Pulsed Current
Min. Typ. Max. Units Test Conditions
19.4
94
14.4
7.8
3.8
—
—
—
—
—
—
—
—
—
—
—
—
7.7
7.4
200
100
210
20.0
100
15.6
8.0
4.0
20
0
200
20
200
0
—
—
—
10
400
0.001
8.4
8.1
500
125
250
20.6
106
16.8
8.2
4.2
50
100
300
50
300
100
100
100
50
50
950
1.0
9.2
V
8.9
—
—
—
mV
mA
V
O
= 0V
V
O
= 15V
µA
mV
2.5V<V
CC
<V
CCUV+
I
RT
= -100 µA
I
RT
= -1 mA
I
RT
= 100 µA
I
RT
= 1 mA
2.5V<V
CC
<V
CCUV+
I
O
= 0A
I
O
= 0A
V
B
= V
S
= 600V
V
kHz
R
T
= 35.7 kΩ
R
T
= 7.04 kΩ
I
CC
= 5 mA
3
IR2151
Functional Block Diagram
V
B
R
R
T
-
+
R
-
+
R
UV
DETECT
R
S
Q
Q
V
CC
15.6V
DEAD
TIME
DELAY
LO
HV
LEVEL
SHIFT
Q
PULSE
FILTER
R
S
HO
DEAD
TIME
PULSE
GEN
V
S
C
T
COM
Lead Definitions
Symbol Description
R
T
C
T
Oscillator timing resistor input,in phase with LO for normal IC operation
Oscillator timing capacitor input, the oscillator frequency according to the following equation:
f
=
V
B
HO
V
S
V
CC
LO
COM
1
1.4
×
(R
T
+
75
Ω
)
×
C
T
where 75Ω is the effective impedance of the R
T
output stage
High side floating supply
High side gate drive output
High side floating supply return
Low side and logic fixed supply
Low side gate drive output
Low side return
Lead Assignments
8 Lead DIP
8 Lead SOIC
IR2151
4
IR2151S
IR2151
8 Lead PDIP
01-3003 01
8 Lead SOIC
5
01-0021 08
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
