Freescale Semiconductor, Inc.
Document order number: MC33892
Rev 1.0, 03/2004
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Preliminary Information
33892
Quad Intelligent High-Side Switch
(Dual 10 mΩ and Dual 35 mΩ)
The 33892 is one in a family of devices designed for low-voltage automotive
and industrial lighting and motor control applications. Its four low RDS(ON)
QUAD INTELLIGENT
HIGH-SIDE SWITCH
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 10x 10 nonleaded Power
QFN package with exposed tabs.
PNC SUFFIX
CASE 1558-02
Features
24-TERMINAL PQFN
• 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
ORDERING INFORMATION
Temperature
Device
Package
Range (TA)
• 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 VPWR Protection
PC33892PNC/R2
24 PQFN
-40°C to 125°C
Simplified Application Diagram
33892 Simplified Application Diagram
V
PWR
V
V
V
V
V
DD
DD
DD
PWR
33892
V
DD
PWR
HS0
WAKE
SI
SO
SCLK
CS
LOAD 0
LOAD 1
SCLK
CS
HS1
HS2
HS3
SI
SO
I/O
RST
FS
MCU
I/O
I/O
IN0
IN1
IN2
IN3
CSNS
LOAD 2
LOAD 3
I/O
I/O
I/O
A/D
FSI
GND
GND
This document contains information on a product under development.
Motorola reserves the right to change or discontinue this product without notice.
For More Information On This Product,
© Motorola, Inc. 2004
Go to: www.freescale.com