LP3954 Selling Leads, Price trend, LP3954 DataSheet download, circuit diagram from SeekIC.com

Features: Audio synchronization for color/RGB LEDsCommand based PWM controlled RGB LED driversHigh current driver for flash LED with built-in timing.4+2 or 6 low voltage constant current white LED driverswith programmable 8-bit adjustment (0.25mA/LED)High efficiency Boost DC-DC converterSPI / I2C ...

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SeekIC No. : 004398871 Detail

LP3954: Features: Audio synchronization for color/RGB LEDsCommand based PWM controlled RGB LED driversHigh current driver for flash LED with built-in timing.4+2 or 6 low voltage constant current white LED d...

LP3954 Data Sheet

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Part Number:: LP3954
Supply Ability:: 5000

Price Break

Qty
1~5000

Unit Price
Negotiable

Processing time
15 Days

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Upload time: 2024/4/27

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Product Details

Description

Features:

Audio synchronization for color/RGB LEDs
Command based PWM controlled RGB LED drivers
High current driver for flash LED with built-in timing.
4+2 or 6 low voltage constant current white LED drivers
with programmable 8-bit adjustment (0.25mA/LED)
High efficiency Boost DC-DC converter
SPI / I²C compatible interface
Possibility for external PWM dimming control
Possibility for clock synchronization for RGB timing
Ambient light and temperature sensing possibility
Small package 36 bump micro SMD, 3.0mm*3.0mm*0.6mm

Application

Cellular Phones
PDAs, MP3 players

Specifications

Regulated LEDs	13
LED Configuration	Parallel
Current Matching	0.20%
Boost Type	Inductive
Switching Frequency	2000 kHz
Switching Type	PWM
Total LED Current	300 mA
Efficiency (peak)	90 %
PowerWise Technology	Audio Adaptive RGB LED Driver
Boost Voltage	Regulated
Supply Current	1 mA
Input Min Voltage	3 Volt
Input Max Voltage	7.2 Volt
OutputMax Voltage	5.3 Volt
PWM BrightCtrl	Yes
Analog-V BrightCtrl	Yes
Ambient Light Compensation	Yes
RGB-LED	Yes
Temperature Min	-30 deg C
Temperature Max	85 deg C
RegType	Lighting Management Unit
PowerWise	Yes
View Using Catalog

V (SW, FB, R1-2, G1-2, B1-2,.......................... -0.3V to +7.2V
FLASH, WLED1-6)(Notes 3, 4)
V_DD1, V_DD2, V_{DD_IO}, V_DDA ...........................-0.3V to +6.0V
Voltage on ASE, IRT, IFLASH,...................-0.3V to V_DD1+0.3V
IRGB, VREF .....................................................with 6.0V max
Voltage on Logic Pins................................... -0.3V to V_{DD_IO}+0.3V with 6.0V max
V(all other pins): Voltage to GND..................... -0.3V to 6.0V
I (V_REF) .........................................................................10A
I(R1, G1, B1, R2, G2, B2)............................................. 100mA
I(FLASH)(Note 5) .........................................................400mA
Continuous Power.......................................Internally Limited
Dissipation(Note 6)
Junction Temperature (TJ-MAX).................................... 150^oC
Storage Temperature Range .......................-65^oC to +150^oC
Maximum Lead Temperature.........................................260^oC
(Soldering) (Note 7)
ESD Rating (Note 8)
Human Body Model: .........................................................2kV

Description

LP3954 is an advanced lighting management unit for handheld devices. It drives any phone lights including display backlights, RGB, keypad and camera flash LEDs. The boost DC-DC converter drives high current loads with high efficiency. White LED backlight drivers are high efficiency low voltage structures with excellent matching and automatic fade in/ fade out function. The new stand-alone command based RGB controller is feature rich and easy to configure. Built-in audio synchronization feature allows user to synchronize the color LEDs to audio input. Integrated high current driver can drive camera flash LED or motor/vibra. Internal ADC can be used for ambient light or temperature sensing. The flexible SPI/I2C interface allows easy control of LP3954. Small micro SMD package together with minimum number of external components is a best fit for handheld devices.

LP3954

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