Freescale Semiconductor
Advance Information
Document Number: MC33981
Rev. 6.0, 5/2007
Single High-Side Switch
(4.0 mΩ), PWM clock up to 60kHz
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 in-rush current, as well as motors and all types of resistive and
inductive loads.
The 33981 is packaged in a 12 x 12 non-leaded 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
• Pb-Free Packaging Designated by Suffix Code PNA
33981B
HIGH-SIDE SWITCH
PNA (Pb-Free Suffix)
98ARL10521D
16-PIN PQFN (12 X 12)
SCALE 1:1
Bottom View
ORDERING INFORMATION
Device
MC33981BPNA/R2
Temperature
Range (T
A
)
- 40°C to 125°C
Package
16 PQFN
V
DD
V
DD
V
PWR
33981
CONF
I/O
I/O
VPWR
CBOOT
OUT
DLS
FS
INLS
EN
INHS
TEMP
CSNS
MCU
I/O
I/O
A/D
A/D
M
GLS
OCLS SR GND
Figure 1. 33981 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 ]
