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參數(shù)資料
| 型號： | TPD4112K |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, PZFM23 |
| 封裝： | 1.27 MM PITCH, LEAD FREE, PLASTIC, HZIP-23 |
| 文件頁數(shù)： | 3/27頁 |
| 文件大?。?/td> | 412K |
| 代理商： | TPD4112K |
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TPD4112K
2006-06-30
11
by forcing the motor to turn externally and creating an edge at a Hall sensor output. In order to
ensure reboot after a system lock, the motor specification must be such that maximum duty is less
than 100%.
Description of Protection Function
(1)
Over-current protection
The IC incorporates an over-current protection circuit to protect itself against over current at startup
or when a motor is locked. This protection function detects voltage generated in the current-detection
resistor connected to the IS1/IS2 pin. When this voltage exceeds VR = 0.5 V (typ.), the high-side IGBT
output, which is on, temporarily shuts down after a mask period, preventing any additional current
from flowing to the IC. The next PWM ON signal releases the shutdown state.
(2)
Under-voltage protection
The IC incorporates an under-voltage protection circuit to prevent the IGBT from operating in
unsaturated mode when the VCC voltage or the VBS voltage drops.
When the VCC power supply falls to the IC internal setting (VCCUVD = 11 V typ.), all IGBT outputs
shut down regardless of the input. This protection function has hysteresis. When the VCCUVR (= 11.5
V typ.) reaches 0.5 V higher than the shutdown voltage, the IC is automatically restored and the
IGBT is turned on/off again by the input.
When the VBS supply voltage drops (VBSUVD = 10 V typ.), the high-side IGBT output shuts down.
When the VBSUVR (= 10.5 V typ.) reaches 0.5 V higher than the shutdown voltage, the IGBT is
turned on/off again by the input signal.
(3)
Thermal shutdown
The IC incorporates a thermal shutdown circuit to protect itself against excessive rise in temperature.
When the temperature of this chip rises to the internal setting TSD due to external causes or internal
heat generation , all IGBT outputs shut down regardless of the input. This protection function has
hysteresis (
ΔTSD = 50°C typ.). When the chip temperature falls to TSD ΔTSD, the chip is
automatically restored and the IGBT is turned on/off again by the input.
Because the chip contains just one temperature-detection location, when the chip heats up due to the
IGBT for example, the distance between the detection location and the IGBT (the source of the heat)
can cause differences in the time taken for shutdown to occur. Therefore, the temperature of the chip
may rise higher than the initial thermal shutdown temperature.
Duty ON
Over-current setting value
PWM reference voltage
Duty OFF
tOFF
tON
Mask period
+ tOFF
Over-current shutdown
Retry
Triangle wave
Output current
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPD4112K(LB2,Q) | 制造商:Toshiba 功能描述:3-Phase Brushless DC Motor Driver 15V 23-Pin (23+Tab) HZIP 制造商:Toshiba 功能描述:3-Phase Brushless DC Motor Driver 15V 23-Pin (23+Tab) HZIP Bulk |
| TPD4112K(LB2Q) | 制造商:Toshiba America Electronic Components 功能描述:IC DRIVER MOTOR 500V 1A 4112 |
| TPD4113AK | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:High Voltage Monolithic Silicon Power IC |
| TPD4113AK(LB2,Q) | 制造商:Toshiba America Electronic Components 功能描述: |
| TPD4113AK_07 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:High Voltage Monolithic Silicon Power IC |
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