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NXP Semiconductors Electronic Components Datasheet

MC33996 Datasheet

16-Output Switch

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Freescale Semiconductor
Advance Information
16 Output Switch with SPI
Control
The 33996 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. A Pulse Width
Modulation (PWM) control input is provided for pulse width
modulation of multiple outputs at the same duty cycle. A dedicated
reset input provides the ability to clear all internal registers and turn
all outputs off.
The 33996 directly interfaces with micro controllers and is
compatible with both 3.3 and 5.0V CMOS logic levels. The 33996, in
effect, serves as a bus expander and buffer with fault management
features that reduce the MCU’s fault management burden.
Features
• Designed to operate 5.0V < VPWR < 27V
• 24 Bit SPI for control and fault reporting, 3.3/5.0V compatible
• Outputs are current limited (0.9 to 2.5A) to drive incandescent
lamps
• Output voltage clamp of +50V during inductive switching
• On/Off control of open load detect current (LED application)
• VPWR standby current < 10μA
• RDS(ON) of 0.55Ω at 25°C typical
• Independent over-temperature protection
• Output selectable for PWM control
• Output ON short-to-VBAT and off short-to-ground/open detection
• Pb-free packaging designated by suffix code EK
Document Number: MC33996
Rev. 8.0, 8/2008
33996
LOW SIDE SWITCH
EK SUFFIX (PB-FREE)
98ARL10543D
32-PIN SOICW EXPOSED PAD
ORDERING INFORMATION
Device
MC33996EK/R2
MCZ33996EK/R2
Temperature
Range (TA)
Package
-40°C to 125°C 32 SOICW-EP
Vdd
3.3 V/5.0 V
VPWR
VBAT
33996
VDD
MCU
SCLK
CS
MISO
MOSI
PWM
RST
SOPWR
VPWR
SCLK
CS
SI
SO
PWM
RST
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
OUT9
OUT10
OUT11
OUT12
OUT13
OUT14
OUT15
GND
Solenoid/Relay
LED
/8 Lamp
Figure 1. 33996 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., 2007-2008. All rights reserved.


NXP Semiconductors Electronic Components Datasheet

MC33996 Datasheet

16-Output Switch

No Preview Available !

IINTERNAL BLOCK DIAGRAM
PWM
RST
CS
SCLK
SI
SO
SOPWR
IINTERNAL BLOCK DIAGRAM
VPWR
VDD
10μA
25μA
10μA
Input
Buffers
10μA
Over-voltage
Detect
OVD
VDD
RB
SFPDB
SFL
CS
SCLK
SI
SO
CSI
CSBI
Voltage
Regulator
GE
OT
SF
OF
Open
Load
Detect
Enable
10 μA
Serial D/O
Line Driver
SPI
Interface
Logic
VDD
Bias
50V
Gate
Control
To Gates
1 to 15
VRef
50μA
ILimit
RS
Short and
Open
Load
Detect
Over-temperature
Detect
From Detectors 1 to 15
OUT0
OUT1-15
GND (8)
Figure 2. 33996 Simplified Internal Block Diagram
33996
2
Analog Integrated Circuit Device Data
Freescale Semiconductor


Part Number MC33996
Description 16-Output Switch
Maker NXP
Total Page 3 Pages
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