Datasheet Texas Instruments DLPA1000YFFR — 数据表

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SLVSDP7A – FEBRUARY 2017 – REVISED MAY 2017 DLPA1000 Power Management and LED Driver IC
1 Features 1 – Overcurrent and Undervoltage Protection
49-Ball 0.4-mm Pitch, DSBGA Package High-Efficiency RGB LED Driver With Buck-Boost
DC-to-DC Converter and Integrated MOSFETS
Six Low-Impedance ( 100 mV,
otherwise set to 0 (default). 0x05h SW4 0x02h (9.5x) Set to 1 if sense voltage is > 200 mV,
otherwise set to 0 (default). 0x06h SW5 0x02h (9.5x) Set to 1 if sense voltage is > 200 mV,
otherwise set to 0 (default). 0x07h SW6 0x02h (9.5x) Set to 1 if sense voltage is > 200 mV,
otherwise set to 0 (default). 7.3.5 Protection Circuits
DLPA1000 has several protection circuits to protect the IC as well as the system from damage due to excessive
power consumption, die temperature, or over-voltages. These circuits are described below.
7.3.5.1 Thermal Warning (HOT) and Thermal Shutdown (TSD)
DLPA1000 continuously monitors the junction temperature and issues a HOT interrupt if temperature exceeds
the HOT threshold. If the temperature continues to increase above the thermal shutdown threshold, all rails are
disabled and the TSD bit in the INT register is set. Once the temperature drops by 15В°C, the output rails are
powered up in sequence and normal operation resumes (DMD_EN bit is not reset by TSD fault).
Thermal shutdown …