IR3220 查看數據表（PDF） - International Rectifier
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IR3220 Datasheet PDF : 10 Pages
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IR3220
Switching Electrical Characteristics
Vcc = 14V, Resistive Load = 3.0Ω, Tj = 25oC, (unless otherwise specified).
Symbol
Parameter
Min. Typ. Max. Units
Tdon
Tr1
Tr2
dV/dt (on)
Tdoff
Tf
Turn-on delay time
Rise time to Vout = Vcc -5V
Rise time from the end of Tr1 to
Vout = 90% of Vcc
Turn ON dV/dt
Turn-off delay time
Fall time to Vout = 10% of Vcc
—
5
—
4
— 65
—
3
— 65
—
8
—
— µs
—
— V/µs
—
—
µs
dV/dt (off)
Turn OFF dV/dt
IN1 (2) max. freq. Max. frequency on IN1 (IN2)
Soft-Start freq. Soft-Start oscillator frequency
—
5
— 500
15 20
— V/µs
— Hz
30 kHz
Ig1 (2) min.
Min. Gate 1 (Gate 2) current
50 —
— mA
Trd
Min. IN1 (2) OFF time to reset SS
2.0 —
— ms
Vg1
Gate 1 (gate 2) voltage
—
7
—V
Test Conditions
see figure 3
see figure 4
low side driver
C=3.0µF, IN1 = IN2
Protection Characteristics
Symbol
Tsd
Isd
Treset
Parameter
Over-temperature threshold
Over-current threshold
Minimum time to reset protections
Min.
—
25
—
Typ.
165
30
100
Max. Units
—
oC
35 A
— µS
Test Conditions
See figure 2
See figure 2
IN1 = IN2 = 0V
Note: The low side switches present sufficient cooling capability in order to have the whole H Bridge function protected
by the IR3220 inner temperature sensor.
Functional Block Diagram
SS
Vrc
VCC
IN 1
Soft Start duty cycle
Ref.
+
-
Oscillator
uvlo
Gnd
H Bridge logic control
& status feedback
40 V Active Clamp
40 V Active Clamp
S S reset
VCC
IN 2
DG
G1
4
Shoot-through
protection
Over current
shutdown
Over temp.
protection
Over current
shutdown
Low Side
Driver
M1
Low Side
Driver
M2
Shoot-through
protection
G2
Gnd
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