参数资料
| 型号： | IR3220S |
| 厂商： | International Rectifier |
| 文件页数： | 5/15页 |
| 文件大小： | 0K |
| 描述： | IC H-BRIDGE 45V 6A 20SOIC |
| 标准包装： | 36 |
| 类型： | 半桥 |
| 输入类型： | 非反相 |
| 输出数： | 4 |
| 导通状态电阻： | 11 毫欧 |
| 电流 - 输出 / 通道： | 2A |
| 电流 - 峰值输出： | 15A |
| 电源电压： | 8 V ~ 28 V |
| 工作温度： | -40°C ~ 150°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC（宽型） |
| 包装： | 管件 |
| 其它名称： | *IR3220S |
IR3220S
The PWM generator is based on a 3V saw-tooth oscillator. The soft-start sequence takes advantage of the RC
charge profile in order to perform a smooth duty cycle variation. When the SS pin is below 1.2V, no PWM signal
is sent to the low side MOSFETs. When it exceeds 4.2V, they are permanently ON. By designing the proper RC
network, the start-up can either be very slow without any in-rush current or, fast and efficient by shortening the
PWM sequence. In addition to the quiescent braking mode, the IR 3220S is able to open the four MOSFETs
simultaneously if the mechanical load requires its natural slow-down (stand-by mode without braking). The
four modes and their corresponding DC motor current profiles are summarized in the Timing Diagram.
Over-load protection is achieved thanks to the I.C temperature shutdown protection. By using the recom-
mended part number and the proper cooling, the whole H-bridge is protected by the IR 3220S’s inner over-
temperature circuitry (see AN 1032). A micro-controller is able to directly drive the PWM duty cycle by forcing
a 0 to 5V voltage on the SS pin (e.g. through a 10K resistor). Thus, closing a speed or torque control loop for
advanced applications becomes very easy. Since the low side MOSFETs are the only ones switching, the
IR 3220S body diodes offer the freewheeling path to the motor. The power dissipated in each body diode while
switching may appear high enough to trip the over-temperature protection. For permanent switching operation,
external Schottky diodes should be implemented between each output (M1 & M2) and the VCC pin.
Permanent Switching Operation
(without external RC time constant)
+5V
Additional
+Bat
Additional Schottky diodes
have to be implemented if
the I.C temperature appears
too high.
Micro
Controller
Vcc
Diagnostic
Direction &
Schottky diodes
Dg
In1
In2
ss
IR 3220 S
Over-voltage
protection
A over-voltage protection
Braking
DC Motor
may be needed depending
on the power supply wire
length
0V
Gnd
Speed
Star Connection
IRF 7484
IRF 7484
-Bat
Copper plates added to the footprints will improve the cooling.
However, the low side MOSFETs should always remain colder
and thermally independent from the IR 3220S. The power path
has to be designed carefully and shall include both a decoupling
capacitor (e.g. 100 nF ceramic) and a reservoir capacitor (e.g.
Cres ( uF). = I pk soft-start (A) x 25). The window-lifter is a
good example where the IR 3220S’s PWM ability greatly en-
hances the application. The current is monitored thanks to a
shunt and sent back to the micro-controller which takes over
the torque control loop (anti-pinch function).
WWW.IRF.COM
5
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PDF描述 |
|---|---|
| IR3310STRR | IC SWITCH HI-SIDE 1CH D2-PAK-5 |
| IR3311STRR | IC SWITCH HI SIDE D2PAK |
| IR3312STRR | IC SWITCH HI-SIDE 4TERM D2-PAK-5 |
| IR3313STRLPBF | IC SW PROGR CURR SENS D2PAK |
| IR3314STRLPBF | IC SW PROGR CURR SENS D2PAK-5 |
相关代理商/技术参数 |
参数描述 |
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| IR3220STR | 功能描述:IC H-BRIDGE 45V 6A 20SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - MOSFET，电桥驱动器 - 内部开关 系列:- 标准包装:1,000 系列:- 类型:高端/低端驱动器 输入类型:SPI 输出数:8 导通状态电阻:850 毫欧，1.6 欧姆 电流 - 输出 / 通道:205mA，410mA 电流 - 峰值输出:500mA，1A 电源电压:9 V ~ 16 V 工作温度:-40°C ~ 150°C 安装类型:表面贴装 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 供应商设备封装:PG-DSO-20-45 包装:带卷 (TR) |
| IR3221 | 制造商:IRF 制造商全称:International Rectifier 功能描述:FULLY PROTECTED H-BRIDGE for DC MOTOR |
| IR323 | 功能描述:LED IR 5MM GAA1AS BLUE TH RoHS:是 类别:光电元件 >> 红外发射极 系列:- 标准包装:1,200 系列:- 电流 - DC 正向(If):100mA 辐射强度(le)最小值@正向电流:27mW/sr @ 100mA 波长:940nm 正向电压:1.6V 视角:40° 方向:顶视图 安装类型:通孔 封装/外壳:径向 包装:带卷 (TR) |
| IR323/H0-A | 功能描述:LED IR 5MM GAA1AS BLUE TH RoHS:是 类别:光电元件 >> 红外发射极 系列:- 标准包装:1,200 系列:- 电流 - DC 正向(If):100mA 辐射强度(le)最小值@正向电流:27mW/sr @ 100mA 波长:940nm 正向电压:1.6V 视角:40° 方向:顶视图 安装类型:通孔 封装/外壳:径向 包装:带卷 (TR) |
| IR3230SPBF | 功能描述:马达/运动/点火控制器和驱动器 3-Phase DC CTRL 50 KHz PWM E-Bike RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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