AP1682MTR-PG1

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The AP1682MTR-PG1 is a power management integrated circuit (PMIC) which functions as a high efficiency LED driver. It is designed to drive up to three strings of LEDs with a maximum of 72 mA each, while operating over a wide input voltage range of 6V to 15V. The PMIC utilizes constant current regulation and delivers excellent power efficiency of up to 88%. The AP1682MTR-PG1 also features high precision precision current control and dimming, fast transient response and good EMI immunity.

The device contains an internal voltage regulator that produces a regulated output voltage, typically 11.2V. This fixed output voltage is then used to drive the LED strings. The AP1682MTR-PG1 also integrates an over-temperature protection circuit, over-voltage protection circuit, and over-current protection circuit to ensure safety and reliability. The device includes two outputs, an enable pin and a dim pin, to control the LED string drivers.

The device integrates a high efficiency switching buck regulator that can operate over a wide input voltage range (6V to 15V), and is capable of delivering up to 72mA per channel. The switching buck regulator is designed to respond quickly to transient load changes and will utilizes pulse width modulation (PWM) control to regulate the output current and precisely control output current without affecting regulated output voltage. The AP1682 also supports both analog and PWM dimming and includes an enable pin to allow for further system control.

The AP1682MTR-PG1 delivers excellent power efficiency of up to 88%and includes an internal compensation circuitry to ensure stability and regulate the output voltage. It uses a current-mode topology and is equipped with a high accuracy 0.2mA reference voltage feedback loop for improved accuracy and stability. The power management IC also includes an internal thermal foldback protection for over-temperature protection. The package also contains an auxiliary pin which can be used to measure the die temperature.

In summary, the AP1682MTR-PG1 is a high efficiency LED driver PMIC that features fast transient response, excellent power efficiency (up to 88%), and high precision current control and dimming. The IC integrates constant current regulation, over voltage, over-temperature and over-current protection to ensure safety and reliability. It is designed to operate with an input voltage range of 6V to 15V and can provide up to 72mA per channel. The Device also supports analog and PWM dimming and includes an enable pin for enhanced system control.

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