●Product Details
●ADP1660 is a very compact, highly efficient, dual white LED flash driver for high-resolution camera phones that improves picture and video quality in low light environments. The device integrates a programmable 1.5 MHz or 3.0 MHz synchronous inductive boost converter, an I2C-compatible interface, and two 750 mA current sources. The high switching frequency enables the use of a tiny, 1 mm high, low cost, 1 μH power inductor, and the parallel current sources permit LED cathode grounding for thermally enhanced, low EMI, and compact layouts.
●The LED driver maximizes efficiency over the entire battery voltage range to maximize the input-power-to-LED-power conversion and minimize battery current draw during flash events. A programmable DC battery current limit safely maximizes LED current for all LED VF and battery voltage conditions.
●A TxMASK input permits the flash LED currents and battery current to reduce quickly during a power amplifier current burst. The I2C-compatible interface enables the programmability of timers, currents, and status bit readback for operation monitoring and safety control.
●ADP1660 comes in a compact 12-ball, 0.5 mm pitch package and operates within specification 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
●Small, 2 mm × 1.5 mm, 12-ball WLCSP package
●Smallest footprint, 1 mm height, 1 μH power inductor
●See data sheet for additional features
● High efficiency: 90% peak
●Reduces high levels of input battery current during flash
●Limits battery current drain in torch mode
● I2C programmable
●Currents up to 750 mA in flash mode per LED with 7% accuracy flash conditions
●Torch mode
●Programmable DC battery current limit (4 settings)
●See data sheet for additional features
● Control
●I2C-compatible control registers
●External STROBE and torch input pins
●Transmitter mask (TxMASK) input
● Safety
●Thermal overload protection
●Inductor fault detection
●LED short-/open-circuit protection
Part 3D Model
