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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)： | 6/21頁(yè) |
| 文件大?。?/td> | 229K |
| 代理商： | TD340ID |
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TD340
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Standby mode
The TD340 can be put in standby mode under software control. When the STBY pin is driven low, the
MOS drivers are switched off and internal charge pump oscillator is stopped. The 5V regulator, the
watchdog and reset circuits are still active.
There is no pull up/down resistor on the STBY pin. STBY must not be left open.
Power consumption (not including the current drained from the 5V regulator) is reduced to about 200uA.
To achieve this standby current, the 5.6k resistor on the OSC pin has to be disconnected with an external
low power MOS controlled by the STBY signal (see figure 10 for an application example)
Standby mode should be only activated when IN1=IN2=0V and after that the motor is actually stopped
because the four MOS are switched off. On exit from the standby mode, a delay of up to 20ms (depending
upon the bootstrap capacitor value) must be given before applying signals to the IN1 and IN2 inputs to
allow proper startup of the charge pump (it is also true for power-up). Figure 8 shows the voltage across
the Cb bootstrap capacitor at powerup or at standby exit as a function of time.
Figure 8 : Charge pump voltage at startup
Fig. 8a : Cb = 10nF
Fig. 8c : Cb = 100nF
Fig. 8b : Cb = 47nF
相關(guān)PDF資料 |
PDF描述 |
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| TD6358N | PLL FREQUENCY SYNTHESIZER, 1000 MHz, PDIP20 |
| TD6381P | PLL FREQUENCY SYNTHESIZER, 1200 MHz, PDIP20 |
| TD6381Z | PLL FREQUENCY SYNTHESIZER, 1200 MHz, PZIP21 |
| TD7603F | PLL FREQUENCY SYNTHESIZER, 1300 MHz, PDSO20 |
| TD7623AFN | PLL FREQUENCY SYNTHESIZER, PDSO16 |
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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