- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377500 > IR3220S (International Rectifier) FULLY PROTECTED H-BRIDGE FOR D.C. MOTOR PDF資料下載
參數(shù)資料
| 型號(hào)： | IR3220S |
| 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)： | 5/15頁 |
| 文件大小： | 558K |
| 代理商： | IR3220S |
IR3220S
WWW.IRF.COM
5
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 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
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).
Micro
Controller
Speed
Direction &
Braking
Diagnostic
0V
+Bat
-Bat
IR 3220
Dg
In1
ss
DC Motor
Over-voltage
protection
Additional
Schottky diodes
Star Connection
Gnd
Vcc
IRF 7484
IRF 7484
S
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IR3221 | FULLY PROTECTED H-BRIDGE for DC MOTOR |
| IR3310 | PROGRAMMABLE CURRENT SENSING HIGH SIDE SWITCH |
| IR3310S | PROGRAMMABLE CURRENT SENSING HIGH SIDE SWITCH |
| IR3313PBF | PROGRAMMABLE CURRENT SENSE HIGH SIDE SWITCH |
| IR3314PBF | PROGRAMMABLE CURRENT SENSE HIGH SIDE SWITCH |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IR3220STR | 功能描述:IC H-BRIDGE 45V 6A 20SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動(dòng)器 - 內(nèi)部開關(guān) 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:高端/低端驅(qū)動(dòng)器 輸入類型:SPI 輸出數(shù):8 導(dǎo)通狀態(tài)電阻:850 毫歐，1.6 歐姆 電流 - 輸出 / 通道:205mA，410mA 電流 - 峰值輸出:500mA，1A 電源電壓:9 V ~ 16 V 工作溫度:-40°C ~ 150°C 安裝類型:表面貼裝 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:PG-DSO-20-45 包裝:帶卷 (TR) |
| IR3221 | 制造商:IRF 制造商全稱: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 類別:光電元件 >> 紅外發(fā)射極 系列:- 標(biāo)準(zhǔn)包裝:1,200 系列:- 電流 - DC 正向(If):100mA 輻射強(qiáng)度(le)最小值@正向電流:27mW/sr @ 100mA 波長:940nm 正向電壓:1.6V 視角:40° 方向:頂視圖 安裝類型:通孔 封裝/外殼:徑向 包裝:帶卷 (TR) |
| IR323/H0-A | 功能描述:LED IR 5MM GAA1AS BLUE TH RoHS:是 類別:光電元件 >> 紅外發(fā)射極 系列:- 標(biāo)準(zhǔn)包裝:1,200 系列:- 電流 - DC 正向(If):100mA 輻射強(qiáng)度(le)最小值@正向電流:27mW/sr @ 100mA 波長:940nm 正向電壓:1.6V 視角:40° 方向:頂視圖 安裝類型:通孔 封裝/外殼:徑向 包裝:帶卷 (TR) |
| IR3230SPBF | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 3-Phase DC CTRL 50 KHz PWM E-Bike RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。