AP3770BNK6TR-G1-2

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AP3770BNK6TR-G1-2: PMIC - AC DC Converters, Offline Switchers

The AP3770BNK6TR-G1-2 is a kind of PMIC with power management integrated circuit which is usually used in AC/DC converters and offline switchers. It has been designed for offline, boundary-mode flyback converters. This chip has high integration which reduces the cost of the application it can be used in. The AP3770BNK6TR-G1-2 is highly optimized to reduce the total external solution components and capacitance. It integrates control and protection such as PWM, COT, OVP/UVP, OTP and etc. Thus, it can help to reduce system cost and also optimize the system performance.

Application Field

The maximum output power of the AP3770BNK6TR-G1-2 is limited to 35 W. It is an ideal solution to design small power applications such as external adapters, POE, game console, consumer electronics, telecommunication, home appliances and etc. The AP3770BNK6TR-G1-2 have various protection functions, including latch-off, short circuit, over power protection, over current protection and thermal shutdown. Additionally, the device provides soft start and hiccup mode for short circuit protection.

Working Principle

The AP3770BNK6TR-G1-2 offers ACDC×2, DCDC and adaptive TNV technologies. ACDC×2 is a two-switch, bidirectional AC-DC converter. The rectifier performs active power factor correction (PFC) and the inverter is used to accelerate the transient response to meet the international standards. DCDC is the DC-DC buck converter that offers the highest efficiency with lowest noise. Adaptive TNV technology automatically optimizes the PWM bandwidth for proper compensation considering Universal input and CCM/DCM conditions of the line. The AP3770BNK6TR-G1-2 also offers various control modes for offline flyback applications. NHA mode helps to reduce the peak current load (The valley-fill circuit can also limit the peak current). SRP mode helps to eliminate ripple voltage of the secondary side without extra components. The device also integrates an analog dimming circuit, less than 4dB flicker noise, pre-biased light load, power save mode and burst mode. These features combined make AP3770BNK6TR-G1-2 a powerful device suitable for cost-effective and high power conversion.

Conclusion

The AP3770BNK6TR-G1-2 is a PMIC device with advanced power management functions integrated. Its features make it an ideal choice for AC/DC converters, offline switchers, external adapters, POE, game consoles, consumer electronics, telecommunication, home appliances and etc. The chip offers high integration and low costs for the application. Additionally, various protections and control functions, such as PWM, COT, OVP/UVP, OTP, latch-off, short circuit, over power protection, over current protection, thermal shutdown, soft start and hiccup mode for short circuit protection, make it an ideal device to design small power applications. Meanwhile, ACDC×2, DCDC and adaptive TNV technologies provide highest efficiency, lowest noise, and optimize the PWM bandwidth for proper compensation.

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