MC33999 Datasheet, PDF (1/16 Pages) Motorola, Inc – 16-Output Switch with SPI and PWM Control

Freescale Semiconductor, Inc.
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Document order number: MC33999
Rev 1.0, 01/2004
Preliminary Information
33999
16-Output Switch with SPI and PWM
Control
The 33999 is a 16-output low-side switch with a 24-bit serial input control.
It is designed for a variety of applications including inductive, incandescent,
and LED loads. The Serial Peripheral Interface (SPI) provides both input
control and diagnostic readout. Eight parallel inputs are also provided for direct
Pulse Width Modulation (PWM) control of eight dedicated outputs.
Additionally, an output-programmable PWM input provides PWM of any
combination of outputs. A dedicated reset input provides the ability to clear all
internal registers and turn all outputs off.
The 33999 directly interfaces with microcontrollers and is compatible with
both 3.3 V and 5.0 V CMOS logic levels. The 33999, in effect, serves as a bus
expander and buffer with fault management features that reduces the MCU’s
fault management burden.
Features
• Designed to Operate 5.0 V < V_PWR < 27 V
• 24-Bit SPI for Control and Fault reporting, 3.3 V/5.0 V Compatible
• Outputs Are Current Limited (0.9 A to 2.5 A) to Drive Incandescent
Lamps
• Output Voltage Clamp of +50 V During Inductive Switching
• On/Off Control of Open Load Detect Current (LED Application)
• V_PWR Standby Current < 10 µA
• R_DS(ON) of 0.55 Ω at 25°C Typical
• Independent Overtemperature Protection
• Output Selectable for PWM Control
• Output ON Short-to-V_BAT and OFF Short-to-Ground/Open Detection
• 54-Pin Exposed Pad Package for Thermal Performance
• Pb-Free Packaging Designated by Suffix Code EK
POWER DUAL OCTAL SERIAL
SWITCH WITH SERIAL
PERIPHERAL INTERFACE I/O
EK (Pb-FREE) SUFFIX
CASE 1390-01
54-LEAD SOICW EXPOSED PAD
ORDERING INFORMATION
Device
Temperature
Range (T_A)
Package
PC33999EK/R2 -40°C to 125°C 54 SOICW-EP
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3.3 V/5.0 V
VPWR
VBAT
33999
VDD
MCU
SCLK
CS
MISO
MOSI
PWM
RST
SOPWR
VPWR
SCLK
CS
SI
SO
PWM
RST
PWM0
PWM1
PWM6
PWM7
PWM8
PWM9
PWM14
PWM15
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
OUT9
OUT10
OUT11
OUT12
OUT13
OUT14
OUT15
GND
Solenoid/Relay
LED
Lamp
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