MC33981 Datasheet, PDF (1/24 Pages) Motorola, Inc – High-Frequency, High-Current, Self-Protected High-Side Switch (4.0 mΩ up to 60 kHz)

Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC33981
Rev 2.0, 10/2004
Preliminary Information
High-Frequency, High-Current,
Self-Protected High-Side Switch
(4.0 mΩ up to 60 kHz)
The 33981 is a high-frequency, self-protected 4.0 mΩ R_DS(ON) high-side
switch used to replace electromechanical relays, fuses, and discrete devices
in power management applications.
The 33981 can be controlled by pulse-width modulation (PWM) with a
frequency up to 60 kHz. It is designed for harsh environments, and it includes
self-recovery features. The 33981 is suitable for loads with high inrush current,
as well as motors and all types of resistive and inductive loads.
The 33981 is packaged in a 12 x 12 nonleaded power-enhanced Power
QFN package with exposed tabs.
Features
• Single 4.0 mΩ R_DS(ON) Maximum High-Side Switch
• PWM Capability up to 60 kHz with Duty Cycle from 5% to 100%
• Very Low Standby Current
• Slew Rate Control with External Capacitor
• Overcurrent and Overtemperature Protection, Undervoltage Shutdown
and Fault Reporting
• Reverse Battery Protection
• Gate Drive Signal for External Low-Side N-Channel MOSFET with
Protection Features
• Output Current Monitoring
• Temperature Feedback
33981
HIGH-SIDE SWITCH
4.0 mΩ
Bottom View
SCC^PANASAEL^S1UE4F02F1-I0X:21
16-TERMINAL PQFN (12 X 12)
ORDERING INFORMATION
Device
Temperature
Range (T_A)
Package
PC33981PNA/R2 -40°C to 125°C 16 PQFN
33981 Simplifie^Sd^imA^plp^ifp^iel^dic^Aa^pt^pio^lin^caD^tioiaⁿg^Drⁱa^am^gram
V_DD
V_DD
V_PWR
I/O
I/O
MCU ^I/O
I/O
A/D
A/D
33981
SR
V_PWR
CONF
FS
C_BOOT
OUT
INLS
EN
DLS
INHS
TEMP
CSNS
GLS
M
OCLS
GND
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