The ADP1653 is a very compact, high efficiency, high power, camera flash LED driver optimized for cellular phones. The high efficiency and dynamic LED current control of the device improve flash brightness and picture quality in dimly lit environments. Efficiency peaks at 92% and is higher than charge pump solutions over the Li-Ion battery range. Camera-enabled cellular phones, smart phones Digital still cameras, camcorders, PDAs
The device has a dual-mode interface that is configurable to 2-bit logic or an I2C® interface. The indicator and high power LED currents are programmable with external resistors or through the I2C interface. To maximize overall flash brightness, the ADP1653 offers an input to reduce flash LED current in less than 50 μs, referred to as the Tx mask. Tx masking reduces battery stress by scaling back flash LED current during an RF transmission.
The ADP1653 solution requires only four external components in I2C mode and fits in a 6.4 mm × 7.2 mm space. The part integrates multiple safety features such as soft start, flash timeout, output current limit, thermal protection, and overvoltage protection.
The ADP1653 operates over the −40°C to +125°C junction temperature range.
Data Sheet, Rev. B, 9/07
Features and BenefitsUp to 200 mA in torch mode Up to 500 mA in flash mode Interrupt output pin Fault condition register Short-circuit protection Output overvoltage protection Thermal overload protection Integrated current limit and soft start | Power Management |
| Document | note |
| ADP1653: Compact, High Efficiency, High Power, Flash/Torch LED Driver with Dual Interface Data Sheet (Rev. B) | PDF 972.9 K |
| Document | note |
| AN-861: ADP1653 Evaluation and Test Methods (Rev. 0) | PDF 937 kB |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| ADP1653ACPZ-R7 Production | 16 ld LFCSP (3x3mm, 1.50mm exposed pad) | REEL 1500 | -40 to 125C | 0 | 1.45 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| ADP1653-EVALZ | Evaluation Board | -1 | Y |
