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Eight-Output Switch. 33291L Datasheet

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Eight-Output Switch. 33291L Datasheet
















33291L Switch. Datasheet pdf. Equivalent













Part

33291L

Description

Eight-Output Switch



Feature


www.DataSheet4U.com Freescale Semiconduc tor Technical Data Document Number: M C33291L Rev. 4.0, 11/2006 Eight-Output Switch with Serial Peripheral Interfac e I/O The 33291L device is an eight-out put, low-side power switch with 8bit se rial input control. The 33291L is a ver satile circuit designed for automotive applications, but is well suited for ot her environments. .
Manufacture

Freescale Semiconductor

Datasheet
Download 33291L Datasheet


Freescale Semiconductor 33291L

33291L; The 33291L incorporates SMARTMOS technol ogy, with CMOS logic, bipolar/MOS analo g circuitry, and DMOS power MOSFETs. Th e 33291L interfaces directly with a mic rocontroller to control various inducti ve or incandescent loads. The circuit s innovative monitoring and protection features include very low standby curr ent, SPI cascade fault reporting capabi lity, internal 53 V .


Freescale Semiconductor 33291L

clamp on each output, output-specific di agnostics, and independent shutdown of outputs. The device is parametrically s pecified over an ambient temperature ra nge of -40°C ≤ TA ≤ 125°C and 9.0 V ≤ VPWR ≤ 16 V supply. Features Designed to Operate Over Wide Supply Voltages of 5.5 V to 26.5 V • Interf aces to Microprocessor Using 8-Bit SPI I/O Protocol up to 3.0 MHz • 1.0.


Freescale Semiconductor 33291L

A Peak Current Outputs with Maximum RDS (ON) of 1.6 Ω at TJ 150°C • Output s Current-Limited to Accommodate In-Rus h Currents Associated with Switching In candescent Loads • Output Voltages Cl amped to 53 V During Inductive Switchin g • Maximum Sleep Current (IPWR) of 2 5 µA • Maximum of 4.0 mA IDD During Operation • Pb-Free Packaging Designa ted by Suffix Code EG 33291L LO.





Part

33291L

Description

Eight-Output Switch



Feature


www.DataSheet4U.com Freescale Semiconduc tor Technical Data Document Number: M C33291L Rev. 4.0, 11/2006 Eight-Output Switch with Serial Peripheral Interfac e I/O The 33291L device is an eight-out put, low-side power switch with 8bit se rial input control. The 33291L is a ver satile circuit designed for automotive applications, but is well suited for ot her environments. .
Manufacture

Freescale Semiconductor

Datasheet
Download 33291L Datasheet




 33291L
www.DFaretaeSshceeatl4eUS.ceommiconductor
Technical Data
Eight-Output Switch with Serial
Peripheral Interface I/O
Document Number: MC33291L
Rev. 4.0, 11/2006
33291L
The 33291L device is an eight-output, low-side power switch with 8-
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.
The circuit’s innovative monitoring and protection features include
very low standby current, SPI cascade fault reporting capability,
internal 53 V clamp on each output, output-specific diagnostics, and
independent shutdown of outputs.
The device is parametrically specified over an ambient temperature
range of -40°C TA 125°C and 9.0 V VPWR 16 V supply.
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
MHz
• 1.0 A Peak Current Outputs with Maximum RDS(ON) of 1.6 at TJ -
150°C
• Outputs Current-Limited to Accommodate In-Rush Currents
Associated with Switching Incandescent Loads
• Output Voltages Clamped to 53 V During Inductive Switching
• Maximum Sleep Current (IPWR) of 25 µA
• Maximum of 4.0 mA IDD During Operation
• Pb-Free Packaging Designated by Suffix Code EG
LOW-SIDE SWITCH
DW SUFFIX
EG SUFFIX (PB-FREE)
98ASB42344B
24-PIN SOICW
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33291LDW/R2
-40°C to 125°C
MCZ33291LEG/R2
24 SOICW
VDD
MCU
33291L
VPWR OP 0
SFPD OP 1
VDD OP 2
CS
SCLK
SI
SO
RESET
OP 3
OP 4
OP 5
OP 6
OP 7
GND
V PWR
Figure 1. 33291L Simplified Application Schematic
Freescale Semiconductor, Inc. reserves the right to change the detail specifications, as
may be required, to permit improvements in the design of its products.
© Freescale Semiconductor, Inc., 2007. All rights reserved.




 33291L
PIN
16
SFPD
15
RST
22
CS
10
SCLK
3
SI
4
SO
9
+
10 µA
25 µA
+
10 µA
Fault Timers
10 µA +
10 µA
Serial D/O
Line Driver
VPWR 21
Over-
voltage
Voltage
Regulator
OVD
GE
VDD
RB
OT
SF
SFPD
OF
SFL
CS
SCLK
SI
SO
SPI
Interface
Logic
CSI
CSBI
Bias
Gate
Control
Open
Load
Detect
Short
Circuit
Detect
53 V
To Gates
1–7
lLimit
+
-
RS
Over-
temperature
Detect
From Detectors 1–7
Output 0
24
Outputs
1, 2, 11–14, 23
Grounds
5–8, 17–20
Figure 2. 33291L Simplified Block Diagram
Table 1. Fault Operation
SERIAL OUTPUT (SO) PIN REPORTS
Overvoltage
Overtemperature
Overcurrent
Output ON, Open Load Fault
Output OFF, Open Load Fault
Overvoltage condition reported.
Fault reported by Serial Output (SO) pin.
SO pin reports short to battery/supply or overcurrent condition.
Not reported.
SO pin reports output OFF open load condition.
DEVICE SHUTDOWNS
Overvoltage
Overtemperature
Overcurrent
Total device shutdown at VPWR = 28 V to 36 V. All outputs are latched off while the SPI register is reset
(cleared). Outputs can be turned back on with a new SPI command after VPWR has decayed below 26.5 V.
Only the output experiencing an overtemperature condition turns OFF.
Only the output experiencing an overcurrent shuts down at 1.0 A to 3.0 A after a 70 µs to 250 µs delay, with
SFPD pin grounded. All other outputs will continue to operate in a current limit mode with no shutdown if the
SFPD pin is at 5.0 V (so long as the individual outputs are not experiencing thermal limit conditions).
33291L
2
Analog Integrated Circuit Device Data
Freescale Semiconductor




 33291L
PIN CONNECTIONS
PIN CONNECTIONS
OP7
OP6
SCLK
SI
GND
GND
GND
GND
SO
CS
OP5
OP4
1
2
3
4
5
6
7
8
9
10
11
12
24 OP0
23 OP1
22 RST
21 VPWR
20 GND
19 GND
18 GND
17 GND
16 VDD
15 SFPD
14 OP2
13 OP3
Figure 3. 33291L Pin Connections
Table 2. 33291L Pin Definitions
PIN
NUMBER
PIN NAME
FORMAL NAME
1 OP7
Output 7
2 OP6
Output 6
3 SCLK
System Clock
4 SI
Serial Input
5–8, 17–20
9
10
GND
SO
CS
Ground
Serial Output
Chip Select
11 OP5
Output 5
12 OP4
Output 4
13 OP3
Output 3
14 OP2
Output 2
15 SFPD
Short Fault
Protect Disable
16 VDD
Logic Supply
21 VPWR
Output MOSFET
Gate Drive Supply
22 RST
Reset
23 OP1
24 OP0
Output 1
Output 0
DEFINITION
Connection to drain of output MOSFET number seven.
Connection to drain of output MOSFET number six.
Clocks the internal Shift registers of the 33291L.
This pin is for the input of serial instruction data. SI information is read on the falling
edge of SCLK.
Connection to IC Power Ground and functions as part of heat sinking path.
Tri-stateable output from the Shift register.
Whenever this pin is in a logic low state, data can be transferred from the MCU to
the 33291L through the SI pin and from the 33291L to the MCU through the SO pin.
Connection to drain of output MOSFET number five.
Connection to drain of output MOSFET number four.
Connection to drain of output MOSFET number three.
Connection to drain of output MOSFET number two.
This pin is used to prevent the outputs from latching-OFF because of an overcurrent
condition.
Plus supply for logic.
Main power supply.
This pin is active low. It is used to clear the SPI Shift register, thereby setting all
output switches OFF.
Connection to drain of output MOSFET number one.
Connection to drain of output MOSFET number zero.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33291L
3




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