Maxim > Products > LED Lighting and LCD Display > MAX8830

MAX8830

LED Light Management IC in 2.5mm x 2.5mm UCSP

White LED and Flash LED management in a small 2.5mm x 2.5mm package

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX8830 light management IC integrates a 400mA (guaranteed) PWM DC-DC step-up converter, a 320mA white LED camera flash current sink, and four programmable LED current sinks. The internal 1MHz step-up converter features an internal switching MOSFET and synchronous rectifier to improve efficiency and minimize external component count. The camera flash output current and maximum timer is programmable through I²C. Each LED current is individually regulated to a programmable level (from off to 10mA in 32 steps) and is completely independent of each other.

An I²C interface controls individual on/off of all outputs, step-up output voltage setting, movie/flash current, flash timer duration settings, and individual LED current sink settings.

The MAX8830 is available in a 16-bump UCSP™ package (2.5mm x 2.5mm).

Data Sheet

Download	Rev 1	(PDF, 208kB)
E-Mail

Key Features

Step-Up DC-DC Converter
- 400mA Guaranteed Output Current
- Over 90% Efficiency
- On-Chip FET and Synchronous Rectifier
- Fixed 1MHz PWM Switching
- Small 2.2µH to 10µH Inductor
- I²C-Programmable V_OUT (3.8V to 5.2V and Off in 16 Steps)
Flash LED Current Sink
- I²C-Programmable Flash Output Current (Off to 320mA in 32 Steps)
- I²C-Programmable Flash Maximum Timer (0.5s, 1.0s, 1.5s, or 2.0s)
- I²C-Programmable Movie Output Current (Off to 160mA in 16 Steps)
- Movie Enabled by I²C or Logic Input
- Flash Enabled by Logic Input
- Low Dropout (75mV typ)
Four LED Current Sinks
- Individually I²C-Programmable Output Current Off to 10mA in 32 Steps
- Low LED Sink Current Dropout Voltage (30mV typ)
I²C Interface
- Write Address (0x94), Read Address (0x95)
- Individual On/Off and LED Current Settings
- Simple Register Mapping
< 1µA Shutdown Current
Open/Short LED Detection
Thermal-Shutdown Protection
16-Bump, 2.5mm x 2.5mm UCSP Package

Applications/Uses

Cell Phones and Smartphones
PDAs and MP3 Players

Key Specifications:

White LED Drivers

Part Number

Topology

LEDs

Config.

Dimming Control

V_DROPOUT
(mV)

V_{CURR_SENSE}
(mV)

P_OUT
(W)

I_LED
(mA)

V_IN
(V)

I_CC
(mA)

V_OUT
(V)

Oper. Freq.
(kHz)

Package/Pins

max num. of

typ

max

min

max

MAX8830

Inductor Based

Parallel

I2C Serial

1.5

200

2.7

5.5

7.5

5.2

1000

WLP/16

See All White LED Drivers (47)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Operating Circuit

More Information

New Product Press Release

[ 2007-10-08 ]

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-0782 Rev 1; 2008-06-27
This page last modified: 2009-08-19