參數(shù)資料
型號(hào)： TD340ID
廠商： STMICROELECTRONICS
元件分類： 運(yùn)動(dòng)控制電子
英文描述： BRUSH DC MOTOR CONTROLLER, PDSO20
封裝： MICRO, PLASTIC, SO-20
文件頁(yè)數(shù)： 19/21頁(yè)
文件大?。?/td> 229K
代理商： TD340ID
TD340
7/21
FUNCTIONAL DESCRIPTION
Speed and Direction Control:
The TD340 IC provides the necessary interface between an H-Bridge DC-Motor Control configuration and
a micro controller. The speed and direction are given by two input signals coming from the
microprocessor.
Speed Control:
Speed control is achieved by Pulse Width Modulation (PWM).
The TD340 provides an internal PWM generator, but can accept an external PWM waveform.
IN1 can accept two different types of inputs:
- an analog input between 0 and 5V (CF must be connected to set the PWM frequency) gives an analog
value of the Internal PWM duty cycle
- a digital input (CF must be grounded) gives directly the PWM
Figure 1 represents the Duty Cycle curve versus the IN1 analog voltage.
Figure 2 shows how to use the TD340 with an analog input or a digital input.
The speed control (or duty cycle) is achieved by the Low Side Drivers which impose the PWM function
while the cross-corresponding High Side MOSFETS is kept fully ON.
Direction Control:
IN2 accepts a digital value of the rotation direction.
Brake mode:
Brake mode is achieved by a zero level on the IN1 input.
The IN2 input selects low side or high side braking.
Brake mode is activated when the IN1 is at zero volt level for more than 200 us.
Figure 1 : Duty Cycle versus IN1 voltage
100%
Voltage
Duty Cycle
1.2V
3.6V
IN1
0%
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TD340IDT 制造商:STMicroelectronics 功能描述:
TD-35.328MBD-T 功能描述:標(biāo)準(zhǔn)時(shí)鐘振蕩器 35.328MHz 3.3V 25ppm -40C to 85C RoHS:否 制造商:AVX 產(chǎn)品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負(fù)載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列:
TD-35.328MBE-T 制造商:TXC Corporation 功能描述:OSC MEMS 35.328 MHZ 3.3V SMD
TD-35.328MCD-T 功能描述:標(biāo)準(zhǔn)時(shí)鐘振蕩器 35.328MHz 2.5V 25ppm -40C to 85C RoHS:否 制造商:AVX 產(chǎn)品:Standard Clock Oscillators 封裝 / 箱體:7 mm x 5 mm 頻率:75 MHz 頻率穩(wěn)定性:50 PPM 電源電壓:2.5 V 負(fù)載電容: 端接類型:SMD/SMT 最小工作溫度:0 C 最大工作溫度:+ 70 C 輸出格式:LVDS 尺寸: 封裝:Reel 系列:
TD-35.328MCE-T 制造商:TXC Corporation 功能描述:OSC MEMS 35.328 MHZ 2.5V SMD
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