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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
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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).
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Data Sheet
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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 VOUT (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
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Applications/Uses
- Cell Phones and Smartphones
- PDAs and MP3 Players
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Key Specifications:
| White LED Drivers |
| Part Number |
Topology |
LEDs |
Config. |
Dimming Control |
VDROPOUT
(mV) |
VCURR_SENSE
(mV) |
POUT
(W) |
ILED
(mA) |
VIN
(V) |
VIN
(V) |
ICC
(mA) |
VOUT
(V) |
Oper. Freq.
(kHz) |
Package/Pins |
| max num. of |
typ |
max |
min |
max |
max |
max |
| MAX8830 |
Inductor Based |
5 |
Parallel |
I2C Serial |
75 |
30 |
1.5 |
200 |
2.7 |
5.5 |
7.5 |
5.2 |
1000 |
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See All White LED Drivers (47)
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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.
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Diagram
Typical Operating Circuit
Product Guides
Reliability Reports
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX8830EWE+T
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Active |
WLP;16 pin;WLP;
Outline Drawing:21-0202 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: W162A2+1*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Information Index
Document Ref.: 19-0782
Rev 1;
2008-06-27
This page last modified: 2009-08-19
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