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| 型号： | KIT33982CEVBE |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 18/36页 |
| 文件大小： | 0K |
| 描述： | KIT EVAL 33982 HIGH SIDE SWITCH |
| 标准包装： | 1 |
| 主要目的： | 电源管理，高端驱动器（内部 FET） |
| 嵌入式： | 否 |
| 已用 IC / 零件： | MC33982 |
| 主要属性： | 输出电流监控，2 个 SPI 可选电流比 |
| 次要属性： | 过电流限制SPI控制，开路负载侦测，输出开/关，转换速率 |
| 已供物品： | 板，CD |
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FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
MC33982 - Functional Block Diagram
Power Supply
MCU Interface and Output Control
Self-protected
High Side Switch
HS
SPI Interface
Parallel Control Inputs
Power Supply
MCU Interface and Output Control
Figure 9. Functional Internal Block Diagram
High Side Switch
POWER SUPPLY
The 33982 is designed to operate from 4.0 to 28 V on the
VPWR pin. Characteristics are provided from 6.0 to 20 V for
the device. The VPWR pin supplies power to internal
regulator, analog, and logic circuit blocks. The VDD supply is
used for Serial Peripheral Interface (SPI) communication in
order to configure and diagnose the device. This IC
architecture provides a low quiescent current sleep mode.
Applying V PWR and V DD to the device will place the device in
the Normal Mode. The device will transit to Fail-safe mode in
case of failures on the SPI (watchdog timeout).
HIGH SIDE SWITCH: HS
This pin is the high side output controlling multiple
automotive loads with high inrush current, as well as motors
and all types of resistive and inductive loads. This N-channel
MOSFET with a 2.0 m ? RDS(ON), is self-protected and
presents extended diagnostics in order to detect load
disconnections and short-circuit fault conditions. The HS
output is actively clamped during a turn-off of inductive loads.
MCU INTERFACE AND OUTPUT CONTROL
In Normal mode, the load is controlled directly from the
MCU through the SPI. With a dedicated SPI command, it is
possible to independently turn on and off several loads that
are PWM’d at the same frequency, and duty cycles with only
one PWM signal. An analog feedback output provides a
current proportional to the load current. The SPI is used to
configure and to read the diagnostic status (faults) of high
side output. The reported fault conditions are: open load,
short-circuit to ground (OCLO-resistive and OCHI-severe
short-circuit), thermal shutdown, and under/over-voltage.
In Fail-safe mode, the load is controlled with dedicated
parallel input pins. The device is configured in default mode.
33982
Analog Integrated Circuit Device Data ?
18
Freescale Semiconductor
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| KIT33982PNAEVB | 功能描述:电源管理IC开发工具 SPSS HIGH-SIDE SWTCH 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 |
| KIT33984CEVBE | 功能描述:电源管理IC开发工具 4.0 M HIGH-SIDE SW 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 |
| KIT33984PNAEVB | 功能描述:电源管理IC开发工具 33984 - SPD4 EVAL KIT 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 |
| KIT33988CEVBE | 功能描述:电源管理IC开发工具 HIGH SIDE SWITCH (8.0M) 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 |
| KIT33989DWEVB | 功能描述:界面开发工具 33989DW HS SBC EVAL KIT RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
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