MC33999 Datasheet, PDF (1/21 Pages) Motorola, Inc – 16-Output Switch with SPI and PWM Control

Freescale Semiconductor
Advance Information
Document Number: MC33999
Rev. 4.0, 4/2007
16-Output Switch with SPI
and PWM Control
33999
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.
POWER DUAL OCTAL SERIAL SWITCH WITH
SERIAL PERIPHERAL INTERFACE I/O
EK SUFFIX (PB-FREE)
98ASA10506D
54-PIN SOICW EXPOSED PAD
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)
ORDERING INFORMATION
Device
Temperature
Range (T_A)
Package
MC33999EK/R2
MCZ33999EK/R2
-40°C to 125°C
54 SOICW-EP
• 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
3.3 V/5.0 V
33999
VPWR
VBAT
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
Figure 1. 33999 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.