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MC33996 Dataheets PDF



Part Number MC33996
Manufacturers NXP
Logo NXP
Description 16-Output Switch
Datasheet MC33996 DatasheetMC33996 Datasheet (PDF)

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.

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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. 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 PIN CONNECTIONS PIN CONNECTIONS OUT0 1 32 OUT1 2 31 SOPWR 3 30 OUT2 4 29 OUT3 5 28 VPWR 6 27 GND 7 26 GND 8 25 GND 9 24 GND 10 23 SCLK 11 22 OUT4 12 21 OUT5 13 20 CS 14 19 OUT6 15 18 OUT7 16 17 OUT15 OUT14 PWM OUT13 OUT12 RST GND GND GND GND SO OUT11 OUT10 SI OUT9 OUT8 Figure 3. 33996 Pin Locations Table 1. Pin Definitions A functional description of each pin can be found in the Functional Pin Description section beginning on page 10. Pin Pin Name Formal Name Definition 1, 2, 4, 5, 12, 13, 15 – 18, 20, 21, 28, 29, 31, 32 OUT0 – OUT15 3 SOPWR 6 VPWR 7– 10, 23 – 26 GND 11 SCLK 14 CS 19 SI 22 SO 27 RST 30 PWM 33 EP Output 0 – Output 15 SOPWR Supply Battery Input Ground System Clock Chip Select Serial Input Serial Output Reset PWM Control Exposed Pad Open drain output pin. Power supply pin to the SO output driver. Battery supply input pin. Ground for logic, analog, and power output devices. System Clock for internal shift registers of the 33996. SPI control chip select input pin from the MCU to the 33996. Serial data input pin to the 33996. Serial data output pin. Active low reset input pin. PWM control input pin. Supports PWM on any combination of outputs. Device will perform as specified with the Exposed Pad un-terminated (floating) however, it is recommended that the Exposed Pad be terminated to system ground. Analog Integrated Circuit Device Data Freescale Semiconductor 33996 3 ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS Table 2. Maximum Ratings All voltages are with respect to ground unless otherwise noted. Rating Symbol Value Unit ELECTRICAL RATINGS VPWR Supply Voltage (1) SO Output Driver Power Supply Voltage (1) SPI Interface Logic Input Voltage (CS, PWM, SI, SO, SCLK, RST) (1) Output Drain Voltage Frequency of SPI Operation (2) Output Clamp Energy (3) ESD Voltage (4) Human Body Model Machine Model THERMAL RATINGS Operating Temperature Ambient Junction Case Storage Temperature Power Dissipation (TA = 25°C) (5) Peak Package Reflow Temperature During Reflow (6), (7) Thermal Resistance Junction-to-Ambient (8) Junction- to-Lead (9) Junction-to-Flag VPWR SOPWR VIN VD fSPI ECLAMP VESD1 VESD2 .


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