ADP1655 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADP1655
Manufacturer

ADI
ChipWorker Part#

CW983472532
Description

Dual LED Flash Driver with I2C Compatible Interface
Documentation

Datasheet

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ADP1655 Specifications

Attribute	Attribute Value

Part Number	ADP1655
Manufacturer	ADI
ChipWorker Part#	CW983472532
Documentation	Datasheet
Case/Package	WLCSP

Product Description

Product Details
The ADP1655 is a very compact, highly efficient, dual white LED flash driver for high resolution camera phones, which improves picture and video quality in low light environments. The device integrates a 2 MHz synchronous inductive boost convertor, an I2C-compatible interface and a 500 mA current source. The high switching frequency enables the use of a tiny, low profile 2.2 μH power inductor, and the current source permits LED cathode grounding for thermally enhanced, low EMI and compact layouts.
The efficiency is high over the entire battery voltage range to maximize the input power to LED power conversion and minimize battery current draw during flash events. In addition, a Tx-mask input permits the flash LED current to reduce quickly and, therefore, the battery current reduces quickly, during a GSM power amplifier current burst.
The I2C-compatible interface enables the programmability of timers, currents, and status bit readback for operation monitoring and safety control.
The ADP1655 comes in a compact 12-ball 0.5 mm pitch WLCSP package and is specified over the full −40°C to +125°C junction temperature range.
**Applications**
* Camera-enabled cellular phones and smart phones
* Digital still cameras, camcorders, and PDAs
### Features and Benefits
Ultracompact solution
Please see data sheet for deatails
High efficiency: 88% peak
Reduces high levels of input battery current during flash
Limits battery current drain in torch mode
|
I2C programmable
Please see data sheet for deatails
Control
I2C-compatible control registers, External STROBE pin
External direct TORCH pin, TX_MASK input to prevent high input battery current levels
Safety
Thermal overload protection, Flash timeout, Inductor fault detection
Output overvoltage, Short circuit protection, Soft start reduces inrush input current
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- Vacuum packed
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- Anti-vibration foam
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- Electrical testing
- Surface testing

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