33982B Datasheet, PDF (1/34 Pages) Freescale Semiconductor, Inc – Single Intelligent High-Current Self-Protected Silicon High-Side Switch (2.0 mohm)

Freescale Semiconductor
Advance Information
Document Number: MC33982
Rev. 12.0, 1/2007
Single Intelligent High-Current
Self-Protected Silicon High-Side
Switch (2.0 mΩ)
33982B
The 33982B is a self-protected silicon 2.0 mΩ high-side switch used
to replace electromechanical relays, fuses, and discrete devices in
power management applications. The 33982B is designed for harsh
environments, and it includes 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.
HIGH-SIDE SWITCH
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 33982B is packaged in a power-enhanced 12 x 12 nonleaded
PQFN package with exposed tabs.
Features
Bottom View
S₉C^P8NAA^ARL_LS1UE_0F5F21^I1X:_D1
16-PIN PQFN
• Single 2.0 mΩ Max High-Side Switch with Parallel Input or SPI
Control
ORDERING INFORMATION
• 6.0 V to 27 V Operating Voltage with Standby Currents < 5.0 µA
• Output Current Monitoring with Two SPI-Selectable Current
Ratios
Device
Temperature
Range (T_A)
Package
• SPI Control of Overcurrent Limit, Overcurrent Fault Blanking
MC33982BPNA/R2
-40°C to 125°C 16 PQFN
Time, Output-OFF Open Load Detection, Output ON/OFF
Control, Watchdog Time-out, Slew Rates, and Fault Status
Reporting
• SPI Status Reporting of Overcurrent, Open and Shorted Loads, Overtemperature Shutdown, Undervoltage and
Overvoltage Shutdown, Fail-Safe Pin Status, and Program Status
• Enhanced -16 V Reverse Polarity V_PWR Protection
V_DD
V_DD
I/O
I/O
SO
SCLK
MCU CS
SI
I/O
I/O
A/D
V_DD
V_PWR
33982B
VDD
VPWR
FS
WAKE
SI
SCLK
CS
HS
SO
RST
IN
CSNS
FSI
GND
GND
LOAD
GND
PWR GND
Figure 1. 33982B Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2007. All rights reserved.