- 您现在的位置：买卖IC网 > PDF目录1223 > KIT33982CEVBE (Freescale Semiconductor)KIT EVAL 33982 HIGH SIDE SWITCH PDF资料下载
参数资料
| 型号： | KIT33982CEVBE |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 16/36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 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页当前第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页
FUNCTIONAL DESCRIPTION
INTRODUCTION
FUNCTIONAL DESCRIPTION
INTRODUCTION
The 33982 is a self-protected silicon 2.0 m ? high side
switch used to replace electromechanical relays, fuses, and
discrete devices in power management applications. The
33982 is designed for harsh environments, including self-
recovery features. The device is suitable for loads with high
inrush current, as well as motors and all types of resistive and
inductive loads.
Programming, control, and diagnostics are implemented
via the Serial Peripheral Interface (SPI). A dedicated parallel
input is available for alternate and pulse width modulation
(PWM) control of the output. SPI programmable fault trip
thresholds allow the device to be adjusted for optimal
performance in the application.
The 33982 is packaged in a power-enhanced 12 x 12
nonleaded PQFN package with exposed tabs.
FUNCTIONAL PIN DESCRIPTION
OUTPUT CURRENT MONITORING (CSNS)
The CSNS pin outputs a current proportional to the high
side output current and used externally to generate a ground-
referenced voltage for the microcontroller to monitor output
current.
WAKE (WAKE)
This pin is used to input a Logic [1] signal in order to enable
the watchdog timer function. An internal clamp protects this
pin from high damaging voltages when the output is current
limited with an external resistor. This input has a passive
internal pull-down.
RESET (RST)
This input pin is used to initialize the device configuration
and fault registers, as well as place the device in a low-
current sleep mode. The pin also starts the watchdog timer
when transitioning from logic LOW to logic HIGH. This pin
should not be allowed to be logic HIGH until V DD is in
regulation. This pin has a passive internal pull-down.
DIRECT IN (IN)
The Input pin is used to directly control the output. This
input has an active internal pulldown current source and
requires CMOS logic levels. This input may be configured via
SPI.
FAULT STATUS (FS)
This is an open drain configured output requiring an
external pull-up resistor to V DD for fault reporting. When a
device fault condition is detected, this pin is active LOW.
Specific device diagnostic faults are reported via the SPI SO
pin.
FAIL-SAFE INPUT (FSI)
The value of the resistance connected between this pin
and ground determines the state of the output after a
watchdog timeout occurs. Depending on the resistance
value, either the output is OFF or ON. When the FSI pin is
connected to GND, the watchdog circuit and fail-safe
operation are disabled. This pin incorporates an active
internal pull-up current source.
CHIP SELECT (CS)
This input pin is connected to a chip select output of a
master microcontroller (MCU). The MCU determines which
device is addressed (selected) to receive data by pulling the
CS pin of the selected device logic LOW, enabling SPI
communication with the device. Other unselected devices on
the serial link having their CS pins pulled up logic HIGH
disregard the SPI communication data sent. This pin
incorporates an active internal pull-up current source.
SERIAL CLOCK (SCLK)
This input pin is connected to the MCU providing the
required bit shift clock for SPI communication. It transitions
one time per bit transferred at an operating frequency, f SPI ,
defined by the communication interface. The 50 percent duty
cycle CMOS-level serial clock signal is idle between
command transfers. The signal is used to shift data into and
out of the device. This input has an active internal pull-down
current source.
SERIAL INTERFACE (SI)
This is a command data input pin connected to the SPI
Serial Data Output of the MCU or to the SO pin of the
previous device in a daisy chain of devices. The input
requires CMOS logic level signals and incorporates an active
internal pull-down current source. Device control is facilitated
by the input's receiving the MSB first of a serial 8-bit control
command. The MCU ensures data is available upon the
falling edge of SCLK. The logic state of SI present upon the
rising edge of SCLK loads that bit command into the internal
command shift register.
DIGITAL DRAIN VOLTAGE POWER (VDD)
This is an external voltage input pin used to supply power
to the SPI circuit. In the event V DD is lost, an internal supply
provides power to a portion of the logic, ensuring limited
functionality of the device. All device configuration registers
are reset.
33982
Analog Integrated Circuit Device Data ?
16
Freescale Semiconductor
相关PDF资料 |
PDF描述 |
|---|---|
| KIT33984CEVBE | KIT EVAL 33984 HIGH SIDE SWITCH |
| KIT33988CEVBE | KIT EVAL 33988 HIGH SIDE SWITCH |
| KIT33996EKEVB | KIT EVAL 33996 16OUTPUT SW W/SPI |
| KIT34673EPEVBE | KIT EVALUATION FOR MC34673 |
| KIT34674EPEVBE | KIT EVAL BOARD 10CH LED BACKLGHT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
发布紧急采购，3分钟左右您将得到回复。