參數(shù)資料
型號(hào): IR3221
廠商: International Rectifier
英文描述: FULLY PROTECTED H-BRIDGE for DC MOTOR
中文描述: 充分保護(hù)H型直流電橋
文件頁數(shù): 6/10頁
文件大?。?/td> 96K
代理商: IR3221
6
IR3221
www.irf.com
Permanent Switching Operation
(Without external RC time constant)
Micro
Controller
Speed
Direction &
Braking
+5V
0V
+Bat
-Bat
IR 3221
In1
ss
DC Motor
Over-voltage
protection
Additional
Schottky diodes
Additional Schottky diodes
have to be implemented if
the I.C temperature appears
too high.
A over-voltage protection
may be needed depending
on the power supply wire
length
Star Connection
Gnd
Vcc
Note:
SS pin ( through a resistor ) can either drive the PWM duty cycle of the inner 20 kHz oscillator or force the
switching frequency ( 5V external clock signal ).
IN 1(2)
M1 (2)
Vcc - 5 V
90%
Vcc
10%
Td on
Tr 1
Tr 2
dV/dt on
IN1(2)
M1(2)
90%
10%
Td off
Tf
dV/dt off
Figure 4 - Switching times definition (turn-off)
Figure 3 - Switching times definition (turn-on)
相關(guān)PDF資料
PDF描述
IR3310 PROGRAMMABLE CURRENT SENSING HIGH SIDE SWITCH
IR3310S PROGRAMMABLE CURRENT SENSING HIGH SIDE SWITCH
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IR3314SPBF PROGRAMMABLE CURRENT SENSE HIGH SIDE SWITCH
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