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LM3533TME-40A датащи(PDF) 1 Page - Texas Instruments

номер детали LM3533TME-40A
подробное описание детали  Complete Lighting Power Solution for Smartphone Handsets
Download  63 Pages
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI1 - Texas Instruments

LM3533TME-40A датащи(HTML) 1 Page - Texas Instruments

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IN
SW
HVLED1
LVLED1
PGND
ALS
INT
Ambient Light
Sensor
HWEN
SDA
SCL
COUT
CIN
L
D1
PWM
CPOUT
CPOUT
C-
C+
LVLED2
LVLED3
LVLED4
LVLED5
OVP
CP
VALS
VIN = 2.7 V to 5.5 V
VOUT up to 40 V
VIN
HVLED2
Product
Folder
Sample &
Buy
Technical
Documents
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Software
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LM3533
SNOSC68C – APRIL 2012 – REVISED SEPTEMBER 2015
LM3533 Complete Lighting Power Solution for Smartphone Handsets
1 Features
3 Description
The LM3533 is a complete power source for
1
Drives Two Parallel High-Voltage LED Strings for
backlight, keypad, and indicator LEDs in smartphone
Display and Keypad Lighting
handsets. The high-voltage inductive boost converter
High-Voltage Strings Capable of up to 40-V
provides the power for two series LED strings for
Output Voltage and up to 90% Efficiency
display backlight and keypad functions (HVLED1 and
HVLED2). The integrated charge pump provides the
Up to 30 mA per Current Sink (Both Backlight and
bias for the five low-voltage indicator LED current
Indicator)
sinks (LVLED1 to LVLED5). All low-voltage current
14-Bit Equivalent Exponential Dimming With 8-Bit
sinks can have a programmable pattern modulated
Programmable Backlight Code
onto their output current for a wide variety of blinking
Selectable Analog ALS Input with 128
patterns.
Programmable Gain-Setting Resistors or PWM
Additional features include a pulse width modulation
ALS Input With Internal Low-Pass Filter
(PWM) control input for content adjustable backlight
PWM Input for Content Adjustable Brightness
control (CABC), and an ambient light sensor interface
Control
(ALS) with an internal 8-bit ADC to provide automatic
current
adjustment
based
upon
ambient
light
Five Low-Voltage Current Sinks for Indicator LEDs
conditions. Both the PWM and ALS inputs can be
Integrated Charge Pump for Improved Efficiency
used to control any high- or low-voltage current sink.
and VIN Operating Range
The LM3533 is fully programmable via an I2C-
Internal Pattern Generation Engine
compatible interface. The device is available in a
Fully Configurable LED Grouping and Control
20-pin DSBGA and operates over a 2.7-V to 5.5-V
Four Programmable Overvoltage Protection
input
voltage
range
and
a
−40°C
to
+85°C
Thresholds (16 V, 24 V, 32 V, and 40 V)
temperature range.
Programmable 500-kHz and 1-MHz Switching
Device Information(1)
Frequency
PART NUMBER
PACKAGE
BODY SIZE (MAX)
27-mm2 Total Solution Size
LM3533
DSBGA (20)
2.04 mm × 1.78 mm
2 Applications
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Power Source for Smart Phone Illumination
Display, Keypad and Indicator Illumination
RGB Indicator Driver
Typical Application Circuit
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


Аналогичный номер детали - LM3533TME-40A

производительномер деталидатащиподробное описание детали
logo
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