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參數(shù)資料
| 型號： | TB6607FLG |
| 元件分類： | 運動控制電子 |
| 英文描述： | STEPPER MOTOR CONTROLLER, 0.8 A, PQCC36 |
| 封裝： | 6 X 6 MM, 0.50 MM PITCH, LEAD FREE, PLASTIC, QON-36 |
| 文件頁數(shù)： | 17/18頁 |
| 文件大?。?/td> | 262K |
| 代理商： | TB6607FLG |
TB6607FLG
2008-01-15
8
Constant-Current Bridges (Channels D and E): PWM constant-current choppers
The TB6607FLG has PWM choppers with a constant turn-off period.
The TB6607FLG measures the turn-off period by counting the number of rising edges of the externally
applied CLK signal. The turn-off period can be changed by changing either the CLK frequency or the
number of its rising edges counted (three or five counts; the default is five counts).
Turning on the power supply causes a current to flow into the motor coils. The peak current through the
winding is sensed via an external current-sensing resistor. As the current increases, a voltage (VRF)
develops across the resistor, which is fed back to the comparator. At the predetermined reference voltage
(Vlimit), the comparator turns off (chops) the power supply.
When high-side output transistors are turned off, the TB6607FLG, by default, counts five rising edges of
the internal CK signal as turn-off period. (The counter resets at the sixth rising edge of CK.)
Based on this turn-off period, the TB6607FLG generates a PWM signal that turns on and off the output
transistors.
Timing Diagram of the PWM Constant-Current Chopper Circuit with the Default Turn-Off Period
Input Pins
All input pins (CK, DATA, LD, PWMA-PWME, STBY) have a pull-down resistor of about 200 k
Ω.
1 2 3
OFF
ON
Power on
Power off
Internal clock
Off timer
(5-bit counter)
Generated PWM signal
Vlimit
Coil current
Counts 5 rising edges of CK.
(The upper limit of the coil current (IO peak) can be calculated as: IO
= Vlimit/RNF.)
CK
45 6
OFF
ON
OFF
ON
VRF
GND
200 k
Ω
VCC
Input
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TB6607FLG(O,EL) | 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 Combination Motor Driver 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 |
| TB6608FNG | 制造商:Toshiba America Electronic Components 功能描述:STEPPER MOTOR DRIVE 13V 0.8A SSOP20 制造商:Toshiba America Electronic Components 功能描述:STEPPER MOTOR DRIVE, 13V 0.8A SSOP20 制造商:Toshiba America Electronic Components 功能描述:Stepper Motor Drive 13V 0.8A,TB6608FNG |
| TB6608FNG(C8,EL,HJ | 制造商:Toshiba 功能描述:Cut Tape 制造商:Toshiba America Electronic Components 功能描述:2ph stepping motor driver 制造商:Toshiba 功能描述:Stepper Motor Driver 3.3V T/R |
| TB6608FNG(C8OEL,HZ | 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 2-phase stepping motor Drvr 15V 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 |
| TB6608FNG(O,EL) | 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 Stepping Motor Driver 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 |
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