33892 Datasheet, PDF (1/28 Pages) Freescale Semiconductor, Inc – Quad Intelligent High-Side Switch

Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC33892
Rev 1.0, 03/2004
Preliminary Information
Quad Intelligent High-Side Switch
(Dual 10 mΩ and Dual 35 mΩ)
33892
The 33892 is one in a family of devices designed for low-voltage automotive
and industrial lighting and motor control applications. Its four low R_DS(ON)
MOSFETs (two 10 mΩ, two 35 mΩ) can control the high sides of four separate
resistive or inductive loads or serve as high-side switches for a pair of DC
motors.
Programming, control, and diagnostics are accomplished using a 16-bit SPI
interface. Additionally, each output has its own parallel input for PWM control
if desired. The 33892 allows the user to program via the SPI the fault current
trip levels and duration of acceptable lamp inrush or motor stall intervals. Such
programmability allows tight control of fault currents and can protect wiring
harnesses and circuit boards as well as loads.
The 33892 is packaged in a power-enhanced 10 x 10 nonleaded Power
QFN package with exposed tabs.
Features
• Dual 10 mΩ and Dual 35 mΩ High-Side Switches
• Operating Voltage Range of 6.0 V to 27 V with Standby Current < 5.0 µA
• SPI Control of Overcurrent Limit, Overcurrent Fault Blanking Time,
Output-OFF Open Load Detection, Output ON/OFF Control, Watchdog
Timeout, Slew Rates, and Fault Status Reporting
• SPI Status Reporting of Overcurrent, Open and Shorted Loads,
Overtemperature, Undervoltage and Overvoltage Shutdown, Fail-Safe
Terminal Status, and Program Status
• Analog Current Feedback with Selectable Ratio
• Enhanced 16 V Reverse Polarity V_PWR Protection
QUAD INTELLIGENT
HIGH-SIDE SWITCH
PNC SUFFIX
CASE 1558-02
24-TERMINAL PQFN
ORDERING INFORMATION
Device
Temperature
Range (T_A)
Package
PC33892PNC/R2 -40°C to 125°C 24 PQFN
Simplified Application Diagram
33892 Simplified Application Diagram
VPWR
VDD
VDD
VDD
VPWR
SO
SCLK
CS
SI
I/O
MCU
I/O
I/O
I/O
I/O
I/O
A/D
GND
33892
VDD
VPWR
WAKE
HS0
SI
SCLK
CS
HS1
SO
RST
FS
IN0
HS2
IN1
IN2
IN3
HS3
CSNS
FSI _GND
LOAD 0
LOAD 1
LOAD 2
LOAD 3
This document contains information on a product under development.
Motorola reserves the right to change or discontinue this product without notice.
© Motorola, Inc. 2004
For More Information On This Product,
Go to: www.freescale.com