Freescale Semiconductor
Advance Information
Document Number: MC33888
Rev. 6.0, 2/2007
Quad High-Side and Octal
Low-Side Switch for Automotive
The 33888 is a single-package combination of a power die with four
discrete high-side MOSFETs (two 10 mΩ and two 40 mΩ) and an
integrated IC control die consisting of eight low-side drivers (600 mΩ
each) with appropriate control, protection, and diagnostic features.
Programming, control, and diagnostics are accomplished using a
16-bit SPI interface. Additionally, each high-side output has its own
parallel input for pulse-width modulation (PWM) control if desired. The
low sides share a single configurable direct input.
Features
• Dual 10 mΩ High Side, Dual 40 mΩ High Side, Octal 600 mΩ
Low Side
• Full Operating Voltage of 6.0 V to 27 V
• SPI Control of High-Side Overcurrent Limit, High-Side Current
Sense, Output OFF Open Load Detection, Output ON/OFF
Control, Watchdog Timeout
• SPI Reporting of Program Status and Fault
• High-Side Analog Current Feedback with Selectable Ratio
• Enhanced 16 V Reverse Polarity V
PWR
Protection
33888
33888A
HIGH-SIDE/LOW-SIDE SWITCH
Bottom View
PNB SUFFIX
98ARL10544D
36-PIN PQFN
Top View
FB SUFFIX
98ARH99043A
64-PIN PQFP
ORDERING INFORMATION
Device
MC33888APNB/R2
MC33888FB/R2
-40°C to 125°C
64 PQFP
Temperature
Range (T
A
)
Package
36 PQFN
V
PWR
+5.0 V
+5.0 V
8 x Relay or LED
33888
4
MCU
A/D
A/D
V
PWR
FS V
DD
IHS0:IHS3
LS4:LS11
ILS
RST
HS3
SPI
HS2
WDIN
HS1
CSNS2-3
HS0
CSNS0-1
FSI
GND
Loads
4
Figure 1. 33888 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.
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
