LP3936 Selling Leads, Price trend, LP3936 DataSheet download, circuit diagram from SeekIC.com

Features: `High Efficiency 250 mA Magnetic Boost DC-DC Converter with Programmable Output Voltage`PWM controlled RGB LED drivers with programmable color, brightness, turn on/off slopes and blinking` FLASH function with 3 drivers, each up to 120 mA current`4 constant current White LED drivers with ...

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SeekIC No. : 004398860 Detail

LP3936: Features: `High Efficiency 250 mA Magnetic Boost DC-DC Converter with Programmable Output Voltage`PWM controlled RGB LED drivers with programmable color, brightness, turn on/off slopes and blinking`...

LP3936 Data Sheet

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Part Number:: LP3936
Supply Ability:: 5000

Price Break

Qty
1~5000

Unit Price
Negotiable

Processing time
15 Days

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Upload time: 2025/12/4

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Product Details

Description

Features:

`High Efficiency 250 mA Magnetic Boost DC-DC Converter with Programmable Output Voltage
`PWM controlled RGB LED drivers with programmable color, brightness, turn on/off slopes and blinking
` FLASH function with 3 drivers, each up to 120 mA current
`4 constant current White LED drivers with programmable 8-bit adjustment (0 . 25 mA/LED)
` 2 constant current White LED drivers with programmable 8-bit adjustment (0 . 25 mA/LED)
` 8-bit ADC for ambient light sensor with averaging
` Combined MicroWire/SPI and I2C compatible serial interface
` Low current Standby mode (software controlled)
`Low voltage digital interface down to 1.8V
` Space efficient 32-pin thin CSP laminate package

Application

·Cellular Phones
· PDAs

Pinout

Connection Diagram

Specifications

V_DD1, V_DD2, V_{DD_IO}, V(OUT, FB) ..........................-0.3V to 6.0V
Voltage on Logic Pins............................. -0.3V to V_{DD_IO} +
.......................................0.3V, with 6.0V max
Voltage on LED Output Pins..........................-0.3V to V(FB) +
.......................................0.3V, with 6.0V max
Voltage on All Other Pins ...........................-0.3V to V_{DD1,2 +}
.......................................0.3V, with 6.0V max
I (ROUT, GOUT, BOUT) .................................150 mA
I (V_REF) ..........................................10 A
Continuous Power Dissipation (Note 3) Internally Limited
Junction Temperature (T_J-MAX) .............................125°C
Storage Temperature Range ........................−65°C to +150°C
Maximum Lead Temperature .............................. 260°C
(Reflow soldering, 3 times) (Note 4)
ESD Rating (Note 5)
Human Body Model: ....................................2 kV
Machine Model: ......................................200V

Regulated LEDs	6
LED Configuration	Parallel
Current Matching	0.50%
Boost Type	Inductive
Switching Frequency	1000 kHz
Switching Type	PWM
Total LED Current	250 mA
Efficiency (peak)	90 %
PowerWise Technology	Programmable RGB Driver
Boost Voltage	Regulated
Supply Current	1 mA
Input Min Voltage	3 Volt
Input Max Voltage	6 Volt
OutputMax Voltage	5.3 Volt
PWM BrightCtrl	Yes
Analog-V BrightCtrl	No
Ambient Light Compensation	Yes
RGB-LED	Yes
Temperature Min	-40 deg C
Temperature Max	85 deg C
RegType	Lighting Management Unit
PowerWise	Yes
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Description

LP3936 is a complete lighting management system designed for portable wireless applications. It contains a boost DC/DC converter, 4 white LED drivers to drive the main LCD panel backlight, 2 white LED drivers for sub-LCD panel and 1 set of RGB LED drivers.

Both WLED groups have 8-bit programmable constant current drivers that are separately adjustable and matched to 1% (typ.). For efficient backlighting the backlight intensity can be adjusted using the 8-bit ADC with ambient light detection circuit.

The RGB LED drivers are PWM-driven with programmable color, intensity and blinking patterns. In addition, they feature a FLASH function to support picture taking with cameraenabled cellular phones.

An efficient magnetic boost converter provides the required bias operating from a single Li-Ion battery. The DC/DC converter output voltage is user programmable for adapting to different LED types and for efficiency optimization. All functions are software controllable through an I2C and MicroWire/SPI compatible interface and 16 internal registers.

LP3936

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