MP3021

MP3021

NOT RECOMMENDED FOR NEW DESIGNS

2.7V-5.5Vin, 4-Channel, 1-Wire Interface Charge Pump LED Driver

代替品

データシート

MP3021 continues to be in production for existing customers. Please consider this alternative for new designs:

MP1519

Charge Pump 4-Channel WLED Driver

Features & Benefits

2% LED Current Matching
High Efficiency (>93%)
Current Source Outputs
No Ballast Resistors Required
1x, 1.5x and 2x Automatic Modes
Constant Frequency Operation
Automatic LED Detection
High and Low Frequency PWM Capability
2.5V to 5.5V Operation
Less than 1μA Leakage during Shutdown
Detects Changes in Battery Level
No External Schottky Diode Required
Soft-Start and Soft Switching Operation

… and many more!

概要

The MP3021 is a WLED driver that can drive up to 4 backlight WLEDs at up to 30mA each. Backlight brightness can be adjusted with a 5 bit register plus one bit for precise low brightness control. The MP3021 employs a super efficient inductorless charge pump with 1x, 1.5x and 2x automatic mode control to achieve high efficiency power conversions. Monolithic Power System?s single wire MPCTM serial data link provides a simple and fast interface used to enable, disable and set current levels for each LED. In addition, soft start limits the inrush current during startup and mode switching. Each output is current limited, providing controlled brightness and short circuit protection. Thermal shutdown protection guards against excessive loads and shorts. The tiny 3mm x 3mm QFN 16-pin package and small external capacitors deliver the most compact white LED solution available.

機能と利点

Backlight: up to 4 WLEDs at 30mA Each
Single Wire Serial Bus (MPCTM Serial Data Link): o Simple, Low Overhead Solution o Fast Data Transfer Rate
Good Current Matching at Low LED Current
Thermal Shutdown Protection
Under Voltage Protection
Available in a 3mm x 3mm 16-Pin QFN Package
Low EMI Noise