參數(shù)資料
型號: IR3220
廠商: International Rectifier
英文描述: FULLY PROTECTED H-BRIDGE FOR D.C. MOTOR
中文描述: 充分保護(hù)H型直流電橋
文件頁數(shù): 4/10頁
文件大?。?/td> 395K
代理商: IR3220
IR3220
4
WWW.IRF.COM
Symbol Parameter
Tsd
Over-temperature threshold
Isd
Over-current threshold
Treset
Minimum time to reset protections
Min.
25
Typ.
165
30
100
Max. Units Test Condition
s
See figure 2
35
A
See figure 2
μ
S
IN1 = IN2 = 0V
o
C
Protection Characteristics
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
Switching Electrical Characteristics
Vcc = 14V, Resistive Load = 3.0
, T
j
= 25
o
C, (unless otherwise specified).
Symbol
Parameter
Tdon
Turn-on delay time
Tr1
Rise time to Vout = Vcc -5V
Tr2
Rise time from the end of Tr1 to
Vout = 90% of Vcc
dV/dt (on)
Turn ON dV/dt
Tdoff
Turn-off delay time
Tf
Fall time to Vout = 10% of Vcc
dV/dt (off)
Turn OFF dV/dt
IN1 (2) max. freq. Max. frequency on IN1 (IN2)
Soft-Start freq.
Soft-Start oscillator frequency
Ig1 (2) min.
Min. Gate 1 (Gate 2) current
Trd
Min. IN1 (2) OFF time to reset SS
Vg1
Gate 1 (gate 2) voltage
Min. Typ. Max. Units
5
4
Test Conditions
15
50
2.0
65
3
65
8
5
500
20
7
30
V/
μ
s
V/
μ
s
Hz
kHz
mA
ms
V
low side driver
C=3.0
μ
F, IN1 = IN2
see figure 3
μ
s
μ
s
see figure 4
H Bridge logic control
& status feedback
VCC
VCC
SS
DG
IN 1
IN 2
Shoot-through
protection
M 2
G 1
M 1
G 2
Oscillator
Gnd
+
-
Soft Start duty cycle
S S reset
Over current
shutdown
Over temp.
protection
Vrc
Ref.
Over current
shutdown
Shoot-through
protection
Low Side
Driver
Low Side
Driver
40 V Active Clamp
40 V Active Clamp
uvlo
Gnd
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