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參數(shù)資料
| 型號： | TA8435HQ |
| 廠商： | Toshiba Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | PWM CHOPPER TYPE BIPOLAR STEPPING MOTOR DRIVER |
| 中文描述： | 脈寬調(diào)制斬波型雙極步進電機驅(qū)動器 |
| 文件頁數(shù)： | 21/28頁 |
| 文件大?。?/td> | 480K |
| 代理商： | TA8435HQ |
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TA8435H/HQ
2001-06-13
21
When using TA8435H/HQ
0.
Introduction
The TA8435H/HQ controls PWM to set the stepping motor winding current to constant current. The device is a
micro
step driver IC used to efficiently drive the stepping motor at low vibration.
1.
About micro
step drive
The TA8435H/HQ drives a stepping motor in micro steps with a maximum resolution of 1 / 8 of the 2
phase
stepping angle (in 2W1
2 phase mode).
In micro steps, A
phase and B
phase current levels are set inside the IC so that the composite vector size and
the rotation angle are even. Just inputting clock signals rotates the stepping motor in micro steps.
2.
About PWM control and output current setting
(1)
Output current path (PWM control)
The TA8435H/HQ controls PWM by turning the upper power transistor on / off.
In such a case, current flows as shown in the figure below.
(2)
Setting of output current by REF
IN input and current detection resistor
The motor current (maximum current for micro
step drive) I
O
is set as shown in the following
equation, using REF
IN input and the external current detection resistor R
NF
.
I
O
= V
REF
/ R
NF
where,
REF
IN = High,
V
REF
= 0.8 V
REF
IN = Low,
V
REF
= 0.5 V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TA8440HQ | Full-bridge Driver (H-Switch) for DC Motor (Driver for Switching between Forward and Reverse Rotation) |
| TA8445K | POWER AMPLIFIER FOR DRIVING A DEFLECTION CIRCUIT OF A COLOR TELEVISION |
| TA8449P | QUAD POWER OP. AMP |
| TA8461F | DUAL POWER OPERATIONAL AMPLIFIER |
| TA8462F | FAN MOTOR DRIVER IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TA8435HQ(5) | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Stepping Motor 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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| TA8440 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:DC MOTOR FULL BRIDGE DRIVER |
| TA8440F | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:DC MOTOR FULL BRIDGE DRIVER F TYPE: UNDER DEVELOPMENT |
| TA8440H | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Full-bridge Driver (H-Switch) for DC Motor (Driver for Switching between Forward and Reverse Rotation) |
| TA8440HQ | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Full-bridge Driver (H-Switch) for DC Motor (Driver for Switching between Forward and Reverse Rotation) |
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