mc33291l Freescale Semiconductor, Inc, mc33291l Datasheet

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mc33291l

Manufacturer Part Number
mc33291l
Description
Eight-output Switch With Serial Peripheral Interface I/o
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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Part Number
Manufacturer
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Price
Part Number:
mc33291lDW
Manufacturer:
FREESCALE
Quantity:
20 000
Part Number:
mc33291lEG
Manufacturer:
FREESCALE
Quantity:
20 000
Freescale Semiconductor
Technical Data
© Freescale Semiconductor, Inc., 2007. All rights reserved.
Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as
may be required, to permit improvements in the design of its products.
Eight-Output Switch with Serial
Peripheral Interface I/O
bit serial input control. The 33291L is a versatile circuit designed for
automotive applications, but is well suited for other environments. The
33291L incorporates SMARTMOS technology, with CMOS logic,
bipolar/MOS analog circuitry, and DMOS power MOSFETs. The
33291L interfaces directly with a microcontroller to control various
inductive or incandescent loads.
very low standby current, SPI cascade fault reporting capability,
internal 53 V clamp on each output, output-specific diagnostics, and
independent shutdown of outputs.
range of -40°C ≤ T
Features
• Designed to Operate Over Wide Supply Voltages of 5.5 V to 26.5 V
• Interfaces to Microprocessor Using 8-Bit SPI I/O Protocol up to 3.0
• 1.0 A Peak Current Outputs with Maximum R
• Outputs Current-Limited to Accommodate In-Rush Currents
• Output Voltages Clamped to 53 V During Inductive Switching
• Maximum Sleep Current (I
• Maximum of 4.0 mA I
• Pb-Free Packaging Designated by Suffix Code EG
The 33291L device is an eight-output, low-side power switch with 8-
The circuit’s innovative monitoring and protection features include
The device is parametrically specified over an ambient temperature
MHz
150°C
Associated with Switching Incandescent Loads
A
≤ 125°C and 9.0 V ≤ V
DD
During Operation
PWR
) of 25 µA
Figure 1. 33291L Simplified Application Schematic
MCU
PWR
V DD
≤ 16 V supply.
DS(ON)
of 1.6 Ω at T
VPWR
SFPD
VDD
CS
SCLK
SI
SO
RESET
33291L
GND
OP 0
OP 1
OP 2
OP 3
OP 4
OP 5
OP 6
OP 7
J
-
MCZ33291LEG/R2
MC33291LDW/R2
Device
ORDERING INFORMATION
V PWR
EG SUFFIX (PB-FREE)
LOW-SIDE SWITCH
Document Number: MC33291L
98ASB42344B
24-PIN SOICW
33291L
-40
DW SUFFIX
Temperature
Range (T
°
C to 125
A
)
°
C
Rev. 4.0, 11/2006
24 SOICW
Package

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mc33291l Summary of contents

Page 1

... V DD 33291L VPWR SFPD OP 2 VDD SCLK RESET GND Document Number: MC33291L Rev. 4.0, 11/2006 33291L LOW-SIDE SWITCH DW SUFFIX EG SUFFIX (PB-FREE) 98ASB42344B 24-PIN SOICW ORDERING INFORMATION Temperature Package Range ( ° ° - 125 C ...

Page 2

Over- voltage + PIN 16 SFPD 10 µA 15 RST 25 µ µ Fault Timers SCLK 10 µ µ Serial D/O Line Driver 9 Table 1. Fault Operation SERIAL ...

Page 3

Table 2. 33291L Pin Definitions PIN PIN NAME FORMAL NAME NUMBER 1 OP7 Output 7 2 OP6 Output 6 3 SCLK System Clock 4 SI Serial Input 5 – – 20 GND Ground 9 SO Serial Output 10 ...

Page 4

ELECTRICAL CHARACTERISTICS MAXIMUM RATINGS Table 3. Maximum Ratings All voltages are with respect to ground unless otherwise noted. Exceeding these ratings may cause a malfunction or permanent damage to the device. Rating Power Supply Voltage Normal Operation (Steady-State) (1) Transient ...

Page 5

Table 3. Maximum Ratings (continued) All voltages are with respect to ground unless otherwise noted. Exceeding these ratings may cause a malfunction or permanent damage to the device. Rating Peak Package Reflow Temperature During Reflow Thermal Resistance (12) All Outputs ...

Page 6

ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 4. Static Electrical Characteristics Characteristics noted under conditions 4.5 V Typical values noted reflect the approximate value with V Characteristic POWER INPUT Supply Voltage Range (14) Quasi-Functional Fully Operational Supply Current ...

Page 7

Table 4. Static Electrical Characteristics (continued) Characteristics noted under conditions 4.5 V Typical values noted reflect the approximate value with V Characteristic Notes 14. SPI inputs and outputs operational. Fault status reporting may not be fully operational within this voltage ...

Page 8

ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 5. Dynamic Electrical Characteristics Characteristics noted under conditions 4.5 V Typical values noted reflect the approximate parameter mean at T Characteristic POWER OUTPUT TIMING = 26 Ω) Output Rise Time (V ...

Page 9

33291L SCLK Under Test C represents the total capacitance of the test fixture and probe. L Figure 4. Valid Data Delay Time and Valid Time Test Circuit 33291L CS Under ...

Page 10

ELECTRICAL CHARACTERISTICS ELECTRICAL PERFORMANCE CURVES PWR 33291L CS Under Test C represents the total capacitance of the test fixture and probe. L Figure 8. Switching Time Test Circuit ...

Page 11

The 33291L was conceived, specified, designed, and developed for automotive applications eight-output low-side power switch having 8-bit serial control. The 33291L incorporates SMARTMOS technology having CMOS logic, bipolar/MOS analog circuitry, and independent state of the art double ...

Page 12

FUNCTIONAL DESCRIPTION INTRODUCTION SCLK Parallel Port CS MISO MC68XX SO Microcontroller SPI IRQ MOSI Multiple 33291L devices can also be controlled in a parallel input fashion using SPI, illustrated in figure shows a possible 24 loads being controlled by only ...

Page 13

CHIP SELECT (CS) The 33291L receives its MCU communication through the pin. Whenever this pin logic low state, data can be CS transferred from the MCU to the 33291L by way of the SI pin and from ...

Page 14

FUNCTIONAL DESCRIPTION FUNCTIONAL PIN DESCRIPTION SERIAL OUTPUT (SO) The serial output (SO) pin is the tri-stateable output from the Shift register. The SO pin remains in a high impedance state until the pin goes to a logic low state. The ...

Page 15

POWER CONSUMPTION The 33291L has extremely low power consumption in both the operating and standby modes. In the standby, or Sleep, ≤ 2.0 V, the current consumed by the VPWR mode, with V DD pin is less than 25 µA. ...

Page 16

FUNCTIONAL DESCRIPTION 33291L 16 Figure 17. Data Transfer Timing Analog Integrated Circuit Device Data Freescale Semiconductor ...

Page 17

FAULT LOGIC OPERATION INTRODUCTION The MCU can perform a parity check of the fault logic operation by comparing the command 8-bit word to the status 8-bit word. Assume after system reset, the MCU first sends an 8-bit command word to ...

Page 18

FUNCTIONAL DESCRIPTION 33291 Low = Fault MOSFET OFF + – V Thres 2 3.5 V Figure 18. Output OFF Open Load Fault An Output OFF Open Load Fault is indicates when the output voltage is less than the ...

Page 19

Grounding the SFPD pin will enable the short fault protection shutdown circuitry. Consider a load short (output short to supply) occurring on an output before, during, and after output turn ON. When the CS signal rises to the high logic ...

Page 20

FUNCTIONAL DESCRIPTION The eight output-off open-load faults are therefore most easily detected. If for a specific output the initial SI command bit were a logic low, when calling for the output to be programmed on, the next word command entered ...

Page 21

PC board placed horizontally cubic inch still air enclosure. The PC board was made of FR4 material measuring 2.5 by 2.5 inches, having double-sided circuit traces of 1.0 ounce ...

Page 22

FUNCTIONAL DESCRIPTION 3.0 1 Output ON (37°C/W) R DS(on) 2.5 2.0 4 Outputs ON (32°C/W) 1.5 1.0 8 Outputs ON (31°C/W) 0.5 0 -50 - Ambient Temperature (C°) A Figure 22. Maximum DIP Package Steady ...

Page 23

For the most current package revision, visit www.freescale.com and perform a keyword search using the “98A” listed below. Analog Integrated Circuit Device Data Freescale Semiconductor PACKAGING PACKAGE DIMENSIONS DW SUFFIX EG SUFFIX (PB-FREE) 20-PIN PLASTIC PACKAGE 98ASB42344B ISSUE F PACKAGING ...

Page 24

... Implemented Revision History page 8/2006 3.0 • Converted to Freescale format • Added EPP prefix suffix device • Removed MC33291LEG/R2 and replaced with MCZ33291LEG/R2 in the Ordering Information block • Removed Peak Package Reflow Temperature During Reflow (solder reflow) parameter 11/2006 4.0 from Maximum ratings on page page 5. Added note with instructions to obtain this information from www ...

Page 25

... Freescale Semiconductor Literature Distribution Center P.O. Box 5405 Denver, Colorado 80217 1-800-441-2447 or 303-675-2140 Fax: 303-675-2150 LDCForFreescaleSemiconductor@hibbertgroup.com MC33291L Rev. 4.0 11/2006 RoHS-compliant and/or Pb-free versions of Freescale products have the functionality and electrical characteristics of their non-RoHS-compliant and/or non-Pb-free counterparts. For further information, see http://www.freescale.com Freescale sales representative. For information on Freescale’ ...

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