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PC33879EK/R2 Datasheet

  • PC33879EK/R2

  • Configurable Octal Serial Switch with Open Load Detect Curre...

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Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC33879
Rev 3.0, 06/2004
Preliminary Information
Configurable Octal Serial Switch
with Open Load Detect Current
Disable
The 33879 device is an 8-output hardware-configurable, high-side/low-side
switch with 16-bit serial input control. Two of the outputs may be controlled
directly via microprocessor for PWM applications. The 33879 incorporates
SMARTMOS technology, with CMOS logic, bipolar/MOS analog circuitry, and
DMOS power MOSFETs. The 33879 controls various inductive, incandescent,
or LED loads by directly interfacing with a microcontroller. The circuit鈥檚
innovative monitoring and protection features include very low standby
currents, cascade fault reporting, internal +45 V clamp voltage for low-side
configuration, -20 V high-side configuration, output-specific diagnostics, and
independent overtemperature protection.
Features
鈥?Designed to Operate 5.5 V < V
PWR
< 26.5 V
鈥?16-Bit SPI for Control and Fault Reporting, 3.3 V/5.0 V Compatible
鈥?Outputs Are Current Limited (0.5 A to 1.0 A) to Drive Incandescent
Lamps
鈥?Output Voltage Clamp, +45 V (Low Side) and -20 V (High Side) During
Inductive Switching
鈥?On/Off Control of Open Load Detect Current (LED Application)
鈥?Internal Reverse Battery Protection on V
PWR
鈥?Loss of Ground or Supply Will Not Energize Loads or Damage IC
鈥?Maximum 5.0
碌A(chǔ)
I
PWR
Standby Current at 13.0 V V
PWR
鈥?R
DS(ON)
of 1.0
鈩?/div>
at 25擄C Typical
鈥?Short Circuit Detect and Current Limit with Automatic Retry
鈥?Independent Overtemperature Protection
鈥?Motorola Now Offers Pb-Free Packaging with the Suffix EK
Simplified Application Diagram
33879 Simplified Application Diagram
VPWR
+5.0 V
33879
CONFIGURABLE OCTAL SERIAL
SWITCH WITH OPEN LOAD
DETECT CURRENT DISABLE
Freescale Semiconductor, Inc...
EK (Pb-FREE) SUFFIX
DWB SUFFIX
CASE 1437-01
32-LEAD SOICW-EP
ORDERING INFORMATION
Device
PC33879DWB/R2
PC33879EK/R2
Temperature
Range (T
A
)
-40
擄
C to 125
擄
C
Package
32 SOICW-EP
33879
VDD VPWR
EN
DI
SCLK
CS
DO
IN5
IN6
D1
D2
D3
D4
S1
S2
S3
S4
VBAT
MCU
A0
MOSI
SCLK
CS
MISO
PWM1
PWM2
High-Side Drive
M
D5
D6
D7
D8
S5
S6
S7
S8
H-Bridge Configuration
VBAT
VBAT
Low-Side Drive
GND
This document contains information on a product under development.
Motorola reserves the right to change or discontinue this product without notice.
漏 Motorola, Inc. 2004
For More Information On This Product,
Go to: www.freescale.com

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