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
IRF [ INTERNATIONAL RECTIFIER ]
