Multi-output PMIC for 2-cell lithium-ion battery systems
The IC’s wide input voltage range allows direct battery connection for each channel to maximize battery life. The PMIC (power management IC) also includes a highly accurate input current sense with circuit breaker control for battery current sensing and over-current shutdown, offering greater power efficiency in the DSLR market.
The DA6102 integrates two buck regulators, a BuckBoost regulator, a high current buck controller, and two always-on LDOs. This high level of integration combined with high frequency operation (up to 3 MHz) minimizes both PCB size and external component count for the smallest possible solution size. The DA6102 uses extremely low RDSon FETs to enable very high efficiency, as high as 94%, for buck and buck-boost regulation.
The PMIC is therefore a complete power supply solution for DSLR, mirrorless cameras, and multi-cell Li-ion battery applications with efficiency levels that surpass those of competing solutions, enabling greater battery savings to allow longer operational run times for 2S Li-ion applications and less heat dissipation for space-constrained and tightly-enclosed consumer devices.
The part offers up to 50% space saving over competing solutions. An I²C interface enables flexibility and easy configuration of the output voltage, switching frequency, power sequencing, and fault protection. Most features are also configurable by OTP for simple output voltage and start-up sequence setup.
Dialog’s SmartCanvas GUI allows engineers to evaluate the DA6102. The device is available in a WLCSP package measuring 2.97 x 3.375 mm and available now through Avnet.
Dialog Semiconductor; www.dialog-semiconductor.com/products/da6102
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