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| 型号： | TPD4124K |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 3 A, PDIP26 |
| 封装： | 13 X 32 MM, 2 MM PITCH, PLASTIC, DIP-26 |
| 文件页数： | 4/23页 |
| 文件大小： | 360K |
| 代理商： | TPD4124K |
TPD4124K
2008-11-26
12
Description of Protection Function
(1) Over-current protection
This product incorporates a 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 RS pin. When this voltage exceeds VR (=0.5 V typ.), the IGBT
output, which is on, temporarily shuts down after a dead time , preventing any additional current
from flowing to this product. The next all “L” signal releases the shutdown state.
(2) Under voltage protection
This product incorporates under voltage protection circuits 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 this product internal setting VCCUVD (=11 V typ.), all IGBT
outputs shut down regardless of the input. This protection function has hysteresis. When the VCC
power supply reaches 0.5 V higher than the shutdown voltage (VCCUVR (=11.5 V typ.)), this product is
automatically restored and the IGBT is turned on again by the input. DIAG output is reversed at the
time of VCC under-voltage protection. When the VCC power supply is less than 7 V, DIAG output isn't
sometimes reversed. When the VBS supply voltage drops VBSUVD (=9 V typ.), the high-side IGBT
output shuts down. When the VBS supply voltage reaches 0.5 V higher than the shutdown voltage
(VBSUVR (=9.5 V typ.)), the IGBT is turned on again by the input signal.
(3) Thermal shutdown
This product incorporates a thermal shutdown circuit to protect itself against the abnormal state
when its temperature rises excessively.
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 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 differences in distance from the detection location in the IGBT (the source of
the heat) cause differences in the time taken for shutdown to occur. Therefore, the temperature of the
chip may rise higher than the thermal shutdown temperature when the circuit started to operate.
Timing Chart of Under voltage protection
Note: The above timing chart is considering the delay time
Safe Operating Area
Note 1: The above safe operating areas are Tj
= 135 °C (Figure 1).
LIN
HO
HIN
VBS
VCC
LO
DIAG
ton
toff
ton
toff
1.9
Peak
winding
current
(A
)
Power supply voltage VBB (V)
Figure 1 SOA at Tj
= 135 °C
0
450
0
400
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPD4124K(Q) | 功能描述:马达/运动/点火控制器和驱动器 Intelligent Power Device, 500V, 2A, BLDC motor drive, DIP26 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TPD4125AK | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Intelligent Power Device High Voltage Monolithic Silicon Power IC |
| TPD4125AK(Q) | 功能描述:马达/运动/点火控制器和驱动器 Intelligent Power Device, 500V, 3A, BLDC motor drive, DIP26 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| TPD4125K | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Intelligent Power Device High Voltage Monolithic Silicon Power IC |
| TPD4125K(Q) | 功能描述:马达/运动/点火控制器和驱动器 Intelligent Power Device, 500V, 3A, BLDC motor drive, DIP26 RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
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