|Category||Analog & Mixed-Signal Processing => Switches & Multiplexers => Power Low Side Switches|
|Title||Power Low Side Switches|
|Description||Six-output Lo-side Switch|
|Company||Motorola Semiconductor Products|
|Datasheet||Download MC33882DH datasheet
Advance Information Six-Output Low-Side Switch with SPI and Parallel Input Control
The is a smart six-output low-side switch able to control system loads 1.0 A. The six outputs can be controlled via both serial peripheral interface (SPI) and parallel input control, making the device attractive for faulttolerant system applications. There are two additional 30 mA low-side switches with SPI diagnostic reporting (with parallel input control only). The 33882 is designed to interface directly with industry-standard microcontrollers via SPI to control both inductive and incandescent loads. Outputs are configured as open-drain power MOSFETs incorporating internal dynamic clamping and current limiting. The device has multiple monitoring and protection features, including low standby current, fault status reporting, internal 52 V clamp on each output, output-specific diagnostics, and protective shutdown. In addition, it has a mode select pin affording a dual means of input control. Features Outputs Clamped for Switching Inductive Loads Very Low Operational Bias Currents 2.0 mA) CMOS Input Logic Compatible with 5.0 V Logic Levels Load Dump Robust (60 V Transient at VPWR and OUT0OUT7) Daisy Chain Operation of Multiple Devices Possible Switch Outputs Can Be Paralleled for Higher Currents RDS(ON) of 0.4 per Output 13 V VPWR SPI Operation Guaranteed to 2.0 MHzDevice MC33882DH/R2 MC33882FC/R2 Temperature Range (TA) to 125°C Package 30 HSOP 32 QFN
Low-Power LED Outputs Optional Control of Paired Outputs
This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Motorola, Inc. 20033 (MODE) Gate 7 Gate 6 Gate 5 Gate 4 Gate 3 Gate 2 Gate 0
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
Note Pin numbers shown in this figure are applicable only to the 30-lead HSOP package.
Pin Name VPWR & IN5 Formal Name Load Supply Voltage Input 0 & Input 1, Input 2 & Input 3, Input 4 & Input 5 Definition This pin is connected to battery voltage. A decoupling cap is required from VPWR to ground. These input pins control two output channels each when the MODE pin is pulled high. These pins may be connected to pulse width modulated (PWM) outputs of the control IC while the MODE pin is high. The states of these pins are ignored during normal operation (MODE pin low) and override the normal inputs (serial or parallel) when the MODE pin is high. These pins have internal active 25 µA pull-downs. The MODE pin is connected to the MODE pin of the control IC. This pin has an internal active 25 µA pull-up. These are parallel control input pins. These pins have internal 25 µA active pull-downs. Each pin is one channel's drain, sinking current for the respective load. Not connected. The Serial Input pin is connected to the SPI Serial Data Output pin of the control IC from where it receives output command data. This input has an internal active 25 µA pull-down and requires CMOS logic levels. The SCLK pin of the control is a bit (shift) clock for the SPI port. It transitions one time per bit transferred when in operation. It is idle between command transfers. is 50% duty cycle, and has CMOS levels. This pin is connected to a chip select output of the control IC. This input has an internal active 25 µA pull-up and requires CMOS logic levels. This pin is connected to the SPI Serial Data Input pin of the control or to the SI pin of the next device in a daisy chain. This output will remain tri-stated unless the device is selected by a low CS pin or the MODE pin goes low. The output signal generated will have CMOS logic levels and the output data will transition on the falling edges of SCLK. The serial output data provides fault information for each output and is returned MSB first when the device is addressed. This pin is connected to the 5.0 V power supply of the system. A decoupling capacitor is required from VDD to ground. The tab on the 30-lead HSOP package provides the circuit ground connection for this IC. Ground continuity is required for the outputs to turn on.Mode Select Input 0Input7 Output 0Output7 No Connect Serial Input
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