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IR3221 の電気的特性と機能

IR3221のメーカーはInternational Rectifierです、この部品の機能は「FULLY PROTECTED H-BRIDGE for DC MOTOR」です。


製品の詳細 ( Datasheet PDF )

部品番号 IR3221
部品説明 FULLY PROTECTED H-BRIDGE for DC MOTOR
メーカ International Rectifier
ロゴ International Rectifier ロゴ 




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IR3221 Datasheet, IR3221 PDF,ピン配置, 機能
Preliminary Data Sheet No. PD60205
IR3221
FULLY PROTECTED H-BRIDGE for DC MOTOR
Features
Over temperature shutdown
Over current shutdown
Ιnrush current limited by Soft-Start
sequence
E.S.D protection
Sleep mode for direct battery connection
Braking / non-braking operation
Internal switching oscillator
Direct interface for End switches
Product Summary
Rdson
Vcc.op.
I cont. ( heat sink )
I shutdown
Oper. Freq.
15 mmax.
5.5 to 35 V
20.0 A
50 A
20 kHz
Description
Packages
The IR3221 is a Fully Protected Dual High Side Switch
I.C. With two additional Low Side switches (IRL1404),
the IR3221 drives and controls the whole H bridge
topology. It provides shoot-through protection for each
leg, H bridge logic control, soft-start sequence and
over-current /over-temp. protections. The signals IN1
and IN2 select the operation modes and the PWM
Soft-Start sequence cycles the corresponding active
low side switch in order to limit the motor inrush cur-
rent. By using the recommended part number and the
SIP 15
TO220 - IRL1404
proper cooling, the inner High Side IPS protects the
whole H-bridge function. The Soft-Start sequence is programmed by an RC time constant and reset itself
automatically.
Block Diagram
+ Bat.
VCC
SS
IR 3221
Gnd
IN 1 LS gate 1
M1
M 2 LS gate 2 IN 2
R
5V
C
G
TO 220 Mosfet
D
S
D
G
S TO 220 Mosfet
+5V
Clockwise motion
10 k
Counter clockwise motion
10 k
Debouncing
RC networks
( e;g 10 nF )
Micro
Controller
Electrical stop
Electrical stop
0V

1 Page





IR3221 pdf, ピン配列
IR3221
Static Electrical Characteristics
Tj = 25oC, VCC = 14V unless otherwise specified.
Symbol
Parameter
Min. Typ. Max. Unit Test Conditions
Rds on @ Tj = 25°C
Rds on @ Tj = 150°C
Vcc oper.
ON state resistance Tj = 25 °C
ON state resistance Tj = 150 °C
Operating voltage range
- 12 16 mVin1,2 = 5 V ; Im1,2 = 5 A
- 20 - mVin1,2 = 5 V ; Im1,2 = 5 A
5.5 - 35 V
V clamp1 (2)
Vcc to M1 (M2) clamp voltage
37 40 48
V Id = 10 mA see Fig. 1 & 2
Vf1(2)
Body diode 1(2)forward voltage
- 0.9 -
V Id = 5 A ; Vin1,2 = 0 V
I M1(2) leakage
Icc off
Icc on
M1 (M2) output leakage current
Supply current when off (sleep mode )
Supply current when on
- 10 50 µA Vm1,2 = 0 V ; Tj = 25 °c
- 10 50 µA Vin1,2 = 0 V, Tj = 25 °c
- 8 - mA
Vin1 = 5 V
V ih1(2) threshold IN1 (IN2) high threshold voltage
- 2.6 -
V
V il1 (2) threshold IN1 (IN2) low threshold voltage
- 2.0 -
V
I in1(2)
ON state IN1 (IN2) positive current
- 35 -
µA
Vin1,2 = 5 V
Vccuv+
Vcc UVLO positive going threshold
- 4.5 -
V
Vccuv-
Vcc UVLO negative going threshold - 4.2 -
V
Vss +
SS high level threshold
- 4.2 -
V
Vss -
SS low level threshold
- 1.2 -
V
I ss leakage
SS pin leakage current
- - 10 uA
Switching Electrical Characteristics
VCC =14V, Resistive Load =2.8, R input = 10k, and Tj = 25oC for each high side switch (unless otherwise specified).
Symbol
Parameter
Min. Typ. Max. Unit Test Conditions
td-on
Turn-on delay time
- 5 - µS
see fig. 3
Tr 1
Rise time to Vout = Vcc - 5 V
- 4 - µS
see fig. 3
Tr 2
Rise time to Vout = 90% of Vcc
- 65 -
µS
see fig. 3
dV/dt ( on )
Turn-ON dV/dt
-3
- V/µs
see fig. 3
Eon Turn-ON energy
- 3 - mJ
td-off
Turn-off delay time
- 65 -
µS
see fig. 4
Tf
Fall time to Vout = 10% of Vcc
- 8 - µS
see fig. 4
dV/dt ( off )
Turn-OFF dV/dt
-5
- V/µs
see fig. 4
Eoff Turn-OFF energy
- 0.75 -
mJ
IN1(2) Max. Freq.
Max. Frequency on IN1 (IN2 )
- 500 -
Hz
Soft-Start freq.
Soft-Start oscillator frequency
15 20 30 kHz
I g1 (2) Max.
Max. Gate 1 ( Gate 2 ) current
50 -
- mA low side driver
Trd
Min. IN1(2) OFF time to reset SS
2.0 -
- mS C=3.0 uF,IN1=IN2
www.irf.com
3


3Pages


IR3221 電子部品, 半導体
IR3221
Permanent Switching Operation
(Without external RC time constant)
+5V
Additional Schottky diodes
have to be implemented if
the I.C temperature appears
too high.
Micro Vcc
Controller
Direction &
Braking
A over-voltage protection
may be needed depending
on the power supply wire
Speed
Gnd
length
0V
Additional
Schottky diodes
In1
In2
IR 3221
ss
Star Connection
Over-voltage
protection
+Bat
DC Motor
-Bat
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)
Vcc
90%
Vcc - 5 V
M1 (2)
10%
Td on
dV/dt on
Tr 1
Tr 2
Figure 3 - Switching times definition (turn-on)
IN1(2)
90%
M1(2)
dV/dt off
10%
Td off
Tf
Figure 4 - Switching times definition (turn-off)
6 www.irf.com

6 Page



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共有リンク

Link :


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