BD67929EFV-E2

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The BD67929EFV-E2 is an integrated power management IC (PMIC) designed for motor driver, controller, and other related applications. The feature-rich device integrates multiple power management blocks, allowing designers to reduce development time while still achieving high performance, reliability and efficiency. Furthermore, the combined features of the BD67929EFV-E2 offer numerous advantages over discrete and previous generation PMICs.

The BD67929EFV-E2 integrates a Half-Bridge Power MOSFET Driver, an Interleave Voltage Regulator, an Internal LDO, an Over-Voltage Protection, a Regulator Shutdown/Shunt Regulator, a High-Speed Synchronous Rectifier, a Quasi-Resonant Boost Converter and a Soft-Start Control.

The Half-Bridge Power MOSFET Driver is designed for driving external N- or P-channel MOSFETs in a typical Half-Bridge configuration. This Driver output can handle up to 10A, providing the flexibility to meet motor requiments. The low on-resistance of the Driver MOSFETs reduces power consumption and heat generation. The Driver also features internal under-voltage protection and a fast turn-off time (tFOD = 75ns).

The Interleave Voltage Regulator is used to maintain a constant output voltage independent of input fluctuations. It is designed to operate at high switch frequencies with low switching losses. It also features an internal soft-start circuit, adjustable reference voltage, UVLO, OVP and fast transient response. The Regulator output can be adjusted from 0.6V to 8V, allowing for a wide range of output voltages.

The Internal Low Drop-out (LDO) is designed to provide stable voltage across a wide input voltage range. The LDO is capable of delivering up to 2A of output current with a typical dropout voltage of around 70mV. The output voltage is adjustable from 0.7V to 5.5V, offering flexible output voltage requirements.

The Over-Voltage Protection (OVP) helps protect the device from over-voltage conditions. It features adjustable OVP thresholds and a hysteretic current-limit circuit to protect the device from power surges. Furthermore, the OVP can operate in either auto-mode or manual-mode, allowing for greater flexibility in system level design.

The Regulator Shutdown/Shunt Regulator is used to protect the device from over-voltage and over-current conditions. It is designed to quickly turn off the power management device in the event of an over-voltage/over-current condition or fault. The Regulator Shutdown/Shunt also features a current limiting feature to help reduce inrush current during startup; this helps ensure the device does not suffer from EMI problems.

The High-Speed Synchronous Rectifier is used to reduce power losses by utilizing the lowest possible conduction losses. It is designed to handle high-oscillation frequencies up to 2MHz. The Rectifier also boasts a fast turn-off time of 50ns and a typical load regulation of 0.5mV.

The Quasi-Resonant Boost Converter is used to improve efficiency and reduce no-load current. It can operate at frequencies up to 2MHz with a typical efficiency of 90%. The Boost Converter also features adjustable reference voltage, internal soft-start circuit and over-voltage protection.

Finally, the Soft-Start Control is used to control the drain current at startup. It features adjustable start-up time, fast transition times and low operating current.

In summary, the BD67929EFV-E2 is an integrated PMIC designed for motor driver, controller and other related applications. It integrates an array of power management blocks to reduce development time while still achieving high performance, reliability and efficiency. The device\'s combined features offer numerous advantages over discrete and previous generation PMICs.

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