MC33984 Datasheet, PDF (1/28 Pages) Motorola, Inc – Dual Intelligent High-Current Self-Protected Silicon High-Side Switch (4.0 mΩ)

Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC33984
Rev 4.0, 09/2004
Advance Information
Dual Intelligent High-Current
Self-Protected Silicon High-Side
Switch (4.0 mΩ)
The 33984 is a dual self-protected 4.0 mΩ silicon switch used to replace
electromechanical relays, fuses, and discrete devices in power management
applications. The 33984 is designed for harsh environments, and it includes
self-recovery features. The device is suitable for loads with high inrush current,
as well as motors and all types of resistive and inductive loads.
Programming, control, and diagnostics are implemented via the Serial
Peripheral Interface (SPI). A dedicated parallel input is available for alternate
and pulse-width modulation (PWM) control of each output. SPI-programmable
fault trip thresholds allow the device to be adjusted for optimal performance in
the application.
The 33984 is packaged in a power-enhanced 12 x 12 nonleaded PQFN
package with exposed tabs.
Features
• Dual 4.0 mΩ Max High-Side Switch with Parallel Input or SPI Control
• 6.0 V to 27 V Operating Voltage with Standby Currents < 5.0 µA
• Output Current Monitoring with Two SPI-Selectable Current Ratios
• 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
Pin Status, and Program Status
• Enhanced -16 V Reverse Polarity V_PWR Protection
33984
DUAL HIGH-SIDE SWITCH
4.0 mΩ
Bottom View
S_CC^PANSA^AEL^S1UE_4F02F1_-I0X:₂1
16-TERMINAL PQFN (12 x 12)
ORDERING INFORMATION
Device
Temperature
Range (T_A)
Package
MC33984PNA/R2 -40°C to 125°C 16 PQFN
33^S9^im8^p4^lifS^iei^dm^Ap^ppli^lf^icie^atd^ionA^Dpⁱp^agli^rc^amation Diagram
V_DD
V_DD
I/O
I/O
SO
SCLK
MCU ^CS
SI
I/O
I/O
I/O
A/D
V_DD
V_PWR
33984
V_DD
V_PWR
FS
GND
WAKE
SI
HS1
SCLK
CS
SO
RST HS0
IN0
IN1
CSNS
FSI GND
LOAD
LOAD
GND
PWR GND
This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Motorola, Inc. 2004
For More Information On This Product,
Go to: www.freescale.com