MAX8830 LED Light Management IC in 2.5mm x 2.5mm UCSP

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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).

Key Features

Applications/Uses

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

	Cell Phones and Smartphones
	PDAs and MP3 Players

Key Specifications: White LED Drivers

Part Number

Topology

Max. No. of LEDs

Configuration

Dimming Control

V_DROPOUT (typ) (mV)

V_{CURR_SENSE} (mV)

P_OUT (W)

I_MAX per LED (mA)

Min. V_IN (V)

Max. V_IN (V)

I_CC (max) (mA)

Max. V_OUT (V)

Fixed Freq.

Operating Freq. (kHz)

Soft Start

Internal Power Switch(es)

Shutdown

Open LED Protection

Camera Flash

LED Temp. Derating

EV-Kit

RoHS Available

Package

Smallest Available Package (max w/pins) (mm²)

Operating Temp. Range (°C)

Price^**

MAX8830

Inductor Based

Parallel

I2C Serial

1.5

200

2.7

5.5

7.5

5.2

Yes

1000

Yes

WLP/16

-40 to +125

$2.50 @ 1k

See All White LED Drivers (43)

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.