参数资料
| 型号： | ATA6823C-PHQW |
| 厂商： | Atmel |
| 文件页数： | 5/27页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DVR H-BRIDGE 32QFN |
| 标准包装： | 4,000 |
| 应用： | H 桥，PWM 电机控制器 |
| 评估套件： | 可供 |
| 输出数： | 1 |
| 电流 - 输出： | 100mA |
| 电压 - 负载： | 7 V ~ 21.2 V |
| 电源电压： | 7 V ~ 21.2 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN（7x7） |
| 包装： | 带卷 (TR) |
| 其它名称： | ATA6823C-PHQW-ND |
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3.
3.1
3.1.1
Functional Description
Power Supply Unit with Supervisor Functions
Power Supply
The IC is supplied by a reverse-protected battery voltage. To prevent it from destruction, proper external protection circuitry has
to be added. It is recommended to use at least a capacitor combination of storage and HF caps behind the reverse protection
circuitry and closed to the VBAT pin of the IC (see Figure 1-1 on page 2 ).
A fully-internal low-power and low-drop regulator, stabilized by an external blocking capacitor provides the necessary low-
voltage supply needed for the wake-up process. The low-power band gap reference is trimmed and is used for the bigger VCC
regulator, too. All internal blocks are supplied by the internal regulator.
Note:
The internal supply voltage V INT must not be used for any other supply purpose!
Nothing inside the IC except the logic interface to the microcontroller is supplied by the 5V/3.3V VCC regulator.
A power-good comparator checks the output voltage of the V INT regulator and keeps the whole chip in reset as long as the
voltage is too low.
There is a high-voltage switch which brings out the battery voltage to the pin VBATSW for measurement purposes. This switch
is switched ON for VCC = HIGH and stays ON in case of a watchdog reset going to sleep mode, VBATSW turns OFF. The
signal can be used to switch on external voltage regulators, etc.
3.1.2
3.1.3
3.2
Voltage Supervisor
This block is intended to protect the IC and the external power MOS transistors against overvoltage on battery level and to
manage undervoltage on it.
Function: in case of both overvoltage alarm (V THOV ) and of undervoltage alarm (V THUV ) the external NMOS motor bridge
transistors will be switched off. The failure state will be flagged via DG2. No other actions will be carried out. The voltage
supervision block is connected to VBAT and filtered by a first-order low pass with a corner frequency of typical 15kHz.
Temperature Supervisor
There is a temperature sensor integrated on-chip to prevent the IC from overheating due to a failure in the external circuitry and
to protect the external NMOSFET transistors.
In case of detected overtemperature (150°C), the diagnostic pin DG3 will be switched to “ H” to signalize this event to the
microcontroller. It should undertake actions to reduce the power dissipation in the IC. In case of detected overtemperature
(165°C), the V CC regulator and all drivers including the LIN transceiver will be switched OFF immediately and /RESET will go
LOW.
Both temperature thresholds are correlated. The absolute tolerance is ±10°C and there is a built-in hysteresis of about 10°C to
avoid fast oscillations. After cooling down below the 155°C threshold; the IC will go into Active mode.
The LIN interface has a separate thermal shutdown with disabled the low-side driver at typically 165°C.
Sleep Mode
To be able to guarantee the low quiescent current of the inactive IC, a Sleep mode is established. In Sleep mode it is possible
to wake-up the IC by using the pins EN2 or LIN. In Sleep mode, the following blocks are active:
●
●
●
●
Band gap
Internal 5V regulator (VINT) with external blocking capacitor of 220nF
Input structure for detecting the EN2 pins threshold
Wake-up block of the LIN receive part
Atmel ATA6823C [DATASHEET]
9209E–AUTO–03/12
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ATA6823C-PHQW-1 | 功能描述:Motor Driver Power MOSFET LIN, PWM 32-QFN (7x7) 制造商:atmel 系列:- 包装:剪切带（CT） 零件状态:有效 电机类型 - 步进:- 电机类型 - AC，DC:有刷直流 功能:控制器 - 换向，方向管理 输出配置:前置驱动器 - 半桥（2） 接口:LIN，PWM 技术:功率 MOSFET 步进分辨率:- 应用:通用 电流 - 输出:- 电压 - 电源:6.5 V ~ 22.7 V 电压 - 负载:- 工作温度:-40°C ~ 125°C（TA） 安装类型:表面贴装 封装/外壳:32-VQFN 裸露焊盘 供应商器件封装:32-QFN（7x7） 标准包装:1 |
| ATA6823C-PHQW-19 | 制造商:Atmel Corporation 功能描述:GATE DRIVER IC 制造商:Atmel Corporation 功能描述:GATE DRIVER IC - Tape and Reel |
| ATA6823-DK | 功能描述:电源管理IC开发工具 H-Bridge Gate Driver Board RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| ATA6823-PHQW | 功能描述:马达/运动/点火控制器和驱动器 Gate Driver IC 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 |
| ATA6823-PHQY | 功能描述:马达/运动/点火控制器和驱动器 Gate Driver IC 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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