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LP8860DQVFPRQ1 Datasheet(PDF) 6 Page - Texas Instruments

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Part # LP8860DQVFPRQ1
Description  Low-EMI, High-Performance 4-Channel LED Driver for Automotive Lighting
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP8860DQVFPRQ1 Datasheet(HTML) 6 Page - Texas Instruments

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LP8860-Q1
SNVSA21C – MAY 2014 – REVISED DECEMBER 2015
www.ti.com
Pin Functions
PIN
TYPE(1)
DESCRIPTION
NUMBER
NAME
1
C1P
A
Positive pin for charge pump flying capacitor.
If feature is disabled, the pin may be left floating.
2
C1N
A
Negative pin for charge pump flying capacitor.
If feature is disabled, the pin may be left floating.
3
VDD
P
Input voltage pin for internal circuit.
4
SQW
A
Square wave output. Can be used for generating extra voltage rail.
If unused, the pin may be left floating.
5
VSENSE_N
A
Pin for input current sense.
6
VSENSE_P
A
Pin for OVP/UVLO protection and input current sense.
7
ISET
A
Optional resistor for setting LED maximum current.
If feature is disabled, the pin may be left floating.
8
TSENSE
A
External temperature sensor for LED current control.
If feature is disabled, the pin may be left floating.
9
FILTER
A
Low pass filter for PLL.
If feature is disabled, the pin may be left floating.
10
SGND
G
Signal ground.
11
FAULT
OD
Fault signal output.
If unused, the pin may be left floating.
12
SYNC
I
Input for synchronizing boost.
This pin must be connected to GND if not used.
13
VSYNC
I
Input for synchronizing PWM generation to display refresh.
This pin must be connected to GND if feature is disabled.
14
MISO
O
Slave data output (SPI). If unused, the pin may be left floating.
15
MOSI/SDA
I/O
Slave data input (SPI) or serial data (I2C).
This pin must be connected to GND if not used.
16
SCLK/SCL
I
Serial clock for SPI or I2C.
This pin must be connected to GND if not used.
17
NSS
I
Slave select (SPI mode) or fault reset (I2C or standalone mode).
This pin must be connected to GND if not used.
18
PWM
I
PWM dimming input.
This pin must be connected to GND if feature is disabled.
19
VDDIO/EN
I
Enable input pin and reference voltage for digital pins.
20
IF
I
Interface selection: low – I2C or standalone mode; high – SPI.
21
OUT4
A
LED current sink output.
If unused, the pin may be left floating.
22
OUT3
A
LED current sink output.
If unused, the pin may be left floating.
23
LGND
G
LED current ground.
24
OUT2
A
LED current sink output.
If unused, the pin may be left floating.
25
OUT1
A
LED current sink output.
If unused, the pin may be left floating.
26
FB
A
Boost feedback input.
27
ISENSE_GND
A
Boost controller’s current sense resistor GND.
28
ISENSE
A
Boost current sense pin.
29
PGND
G
Power ground.
30
GD
A
Gate driver output for boost FET.
31
CPUMP
P
Charge pump output pin.
32
SD
A
Power line FET control.
If unused, the pin may be left floating.
(1)
A: Analog pin, G: Ground pin, P: Power pin, I: Input pin, I/O: Input/Output pin, O: Output pin, OD: Open Drain pin
6
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Copyright © 2014–2015, Texas Instruments Incorporated
Product Folder Links: LP8860-Q1


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