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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 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
Total Cost: $ 0.00

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Upload time: 2024/12/21

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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
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V (SW, FB, R1-2, G1-2, B1-2,.......................... -0.3V to +7.2V
FLASH, WLED1-6)(Notes 3, 4)
VDD1, VDD2, VDD_IO, VDDA ...........................-0.3V to +6.0V
Voltage on ASE, IRT, IFLASH,...................-0.3V to VDD1+0.3V
IRGB, VREF .....................................................with 6.0V max
Voltage on Logic Pins................................... -0.3V to VDD_IO
+0.3V with 6.0V max
V(all other pins): Voltage to GND..................... -0.3V to 6.0V
I (VREF) .........................................................................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).................................... 150oC
Storage Temperature Range .......................-65oC to +150oC
Maximum Lead Temperature.........................................260oC
(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.






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