10XS3535 Datasheet PDF - Freescale Semiconductor

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10XS3535
Freescale Semiconductor

Part Number 10XS3535
Description Smart Front Corner Light Switch
Page 30 Pages


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Freescale Semiconductor
Technical Data
Document Number: MC10XS3535
Rev. 6.0, 6/2012
Smart Front Corner Light Switch
(Triple 10 mOhm and Dual
35 mOhm)
10XS3535
The 10XS3535 is designed for low voltage automotive and industrial
lighting applications. Its five low RDS(ON) MOSFETs (three 10 mΩ, two
35 mΩ) can control the high sides of five separate resistive loads
(bulbs, Xenon-HID modules and LEDs).
Programming, control and diagnostics are accomplished using a
16-bit SPI interface (3.3 V or 5.0 V). Each output has its own pulse-
width modulation (PWM) control via the SPI. The 10XS3535 has highly
sophisticated failure mode handling to provide high availability of the
outputs. Its multiphase control and output edge shaping improves
electromagnetic compatibility (EMC) behavior.
The 10XS3535 is packaged in a power-enhanced 12 x 12 mm
nonleaded PQFN package with exposed tabs.
Features
• Triple 10 mΩ and dual 35 mΩ high side switches
• 16-bit SPI communication interface with daisy chain capability
• Current sense output with SPI-programmable multiplex switch
and board temperature feedback
• Digital diagnosis feature
• PWM module with multiphase feature including prescaler
• LEDs control including accurate current sensing and low duty-
cycle capability
• Fully protected switches
• Over-current shutdown detection
• Power net and reverse polarity protection
• Low-power mode
• Fail mode functions including autorestart feature
• External smart power switch control including current recopy
HIGH SIDE SWITCH
Bottom View
FK SUFFIX
98ART10511D
24-PIN PQFN
PB FREE
ORDERING INFORMATION
Device
(For Tape and Reel,
add R2 Suffix)
Temperature
Range (TA)
Package
MC10XS3535HFK
-40 to 125 °C
24 PQFN
12V 5.0V
Watchdog
MCU
12V
10XS3535
VCC
VBAT
CP
LIMP
FLASHER
IGN
OUT1
OUT2
RST
CLOCK
CS
OUT3
OUT4
FOG
S0
SI
OUT5
FETIN
SCLK
FETOUT
CSNS GND
Smart
Switch
Figure 1. 10XS3535 Simplified Application Diagram
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., 2010-2012. All rights reserved.
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INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
RUP
CS
SO
SI
SCLK
CLOCK
LIMP
FOG
FLASHER
IGN
RST
VCC
Vcc failure
detection
VBAT
Internal
Regulator
OV/UV/POR
detections
CP
Charge
Pump
RDWN
Logic
LED Control
Open Load
Detection
Gate Drive
drain/gate clamp
Over-current
Detection
Over-temperature
Detection
OUT1
CSNS
RDWN
OUT2
Over-temperature
Prewarning
OUT3
OUT4
Temperature
Feedback
OUT5
Selectable Output Current
Recopy (Analog MUX)
Current Recopy
Synchronization
VCC
Driver for External
MOSFET
GND
Figure 2. 10XS3535 Simplified Internal Block Diagram
OUT1
OUT2
OUT3
OUT4
OUT5
FETIN
FETOUT
10XS3535
2
Analog Integrated Circuit Device Data
Freescale Semiconductor
Free Datasheet http://www.datasheet4u.com/



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PIN CONNECTIONS
PIN CONNECTIONS
13 12 11 10 9 8 7 6 5 4 3 2 1
CP
GND
16
17
OUT5 18
14
GND
24 CSNS
23 GND
22 OUT1
15
VBAT
19
OUT4
20
OUT3
21
OUT2
Figure 3. 10XS3535 Pin Connections (Transparent Top View Of Package)
Table 1. 10XS3535 Pin Definitions
A functional description of each pin can be found in the Functional Pin Description section beginning on Page 20.
Pin
Number
Pin Name Pin Function Formal Name
Definition
1
FETIN
Input
External FET Input This pin is the current sense recopy of the external SMART MOSFET.
2
IGN
Input
Ignition Input This input wakes the device. It also controls the Outputs 1 and 2 in case of Fail
(Active High) mode activation. This pin has a passive internal pull-down.
3
RST
Input
Reset
This input wakes the device. It is also used to initialize the device configuration
and fault registers through SPI. This digital pin has a passive internal pull-down.
4
FLASHER
Input
Flasher Input
(Active High)
This input wakes the device. This pin has a passive internal pull-down.
5
CLOCK Input/Output
Clock Input
This pin state depends on RST logic level.
As long as RST input pin is set to logic [0], this pin is pulled up in order to report
wake event. Otherwise, the PWM frequency and timing are generated from this
digital clock input by the PWM module.
This pin has a passive internal pull-down.
6
LIMP
Input
Limp Home Input The Fail mode can be activated by this digital input. This pin has a passive
(Active High) internal pull-down.
7
FOG
Input
FOG Input (Active This input wakes the device. This pin has a passive internal pull-down.
high)
8
CS
Input
Chip Select
When this digital signal is high, SPI signals are ignored. Asserting this pin low
(Active Low)
starts a SPI transaction. The transaction is signaled as completed when this
signal returns high. This pin has a passive internal pull-up resistance.
9
SCLK
Input
SPI Clock Input This digital input pin is connected to the master microcontroller providing the
required bit shift clock for SPI communication. This pin has a passive internal
pull-down resistance.
Analog Integrated Circuit Device Data
Freescale Semiconductor
10XS3535
3
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PIN CONNECTIONS
Table 1. 10XS3535 Pin Definitions (continued)
A functional description of each pin can be found in the Functional Pin Description section beginning on Page 20.
Pin
Number
Pin Name Pin Function Formal Name
Definition
10 SI
11 VCC
12 SO
13 FETOUT
14,17,23
GND
Input
Power
Output
Output
Ground
Master-Out Slave- This data input is sampled on the positive edge of the SCLK. This pin has a
In passive internal pull-down resistance.
Logic Supply SPI Logic power supply.
Master-In Slave- SPI data is sent to the MCU by this pin. This data output changes on the
Out negative edge of SCLK and when CS is high, this pin is high-impedance.
External FET Gate
This pin controls an external SMART MOSFET by logic level. This output is also
called OUT6.
If OUT6 is not used in the application, this output pin is set to logic high when
the current sense output becomes valid when CSNS sync SPI bit is set to logic
[1].
Ground
This pin is the ground for the logic and analog circuitry of the device.(1)
15
VBAT
Power
Battery Input Power supply pin.
16
CP
Output
Charge Pump This pin is the connection for an external tank capacitor (for internal use only).
22
OUT1
Output
18 OUT5
Output 1
Output 5
Protected 35 mΩ high side power output to the load.
21
OUT2
Output
20 OUT3
19 OUT4
Output 2
Output 3
Output 4
Protected 10 mΩ high side power output to the load.
24
CSNS
Output
Current Sense This pin is used to output a current proportional to OUT1:OUT5, FETin current,
Output
and it is used externally to generate a ground-referenced voltage for the
microcontroller to monitor output current. Moreover, this pin can report a voltage
proportional to the temperature on the GND flag.
OUT1:OUT5, FETin current sensing and Temperature feedback choice is SPI
programmable.
Notes
1. The pins 14, 17 and 23 must be shorted on the board.
10XS3535
4
Analog Integrated Circuit Device Data
Freescale Semiconductor
Free Datasheet http://www.datasheet4u.com/



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