(Maxim) MAX25512BATGA: 4-channel low-voltage 120mA LED backlight driver controlled by I2C

 Detailed introduction

The MAX25512BATGA device is a four-channel white LED backlight driver with an integrated current-mode boost converter inside. It operates within a switching frequency range of 400kHz to 2.2MHz and employs spread spectrum technology. The user can choose to phase shift the output channel to further reduce electromagnetic interference (EMI).

The MAX25512BATGA device can provide up to 120mA of current per channel and offer one control output for driving an external nMOS switch. After startup, it can operate at a voltage as low as 3V.

The MAX25512BATGA features an I2C interface, offering highly flexible control and diagnostic functions.

The MAX25512BATGA is packaged in a small-sized TQFN and operates within a temperature range of -40°C to +125°C.

Its main features include:

After startup, it can operate at a battery voltage as low as 3V

The Boost converter supports a wide duty cycle operation and allows for low-voltage input

Boost or SEPIC current mode DC/DC controller

The operating frequency range is from 400kHz to 2.2MHz

Supports spread spectrum mode

It can synchronize external clocks

LED driving current

Each channel provides an output current of up to 120mA

Lower OUT_ regulate the voltage to achieve the best efficiency

The output phase shift can be selected

I2C control enhances flexibility

16667:1 dimming ratio @ 200Hz

NTC input enables LED return-type current limiting at high temperatures

Supports mixed dimming

Supports programmable automatic gradient dimming

Provide detailed diagnosis by using I2C and FLTB outputs

The LED is short-circuited or open

Thermal shutdown

Output under-voltage

Small size, 4x4mm TQFN package

AECQ100 Level 1 certification

MAX25512BATGA application

Automobile dashboard

The central information display screen of the car

Car head-up display

Basic parameters

Product: MAX25512BATGA

Type: DC DC controller

Topology: SEPIC, boost voltage

Internal switch: Yes

Output number: 4

Voltage - Power supply (minimum) : 3V

Voltage - Power supply (maximum) : 36V

Voltage - Output: -

Current - Output/Channel: 120mA

Frequency: 400kHz to 2.2MHz

Dimming: I2C

Application: Backlight

Operating temperature: -40°C to 125°C

Grade: Automotive grade

Qualification: AEC-Q100

Installation type: Surface mount type

Package/Housing: 24-TQFN

Consult Mingjiada Electronics immediately to obtain your exclusive MAX25512BATGA supply solution

Sales Hotline: +86 13410018555 (Mr. Chen)

Business email: sales@hkmjd.com

For inquiries, please visit www.mjdic.com