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ADP1048-600-EVALZ Datasheet(PDF) 5 Page - Analog Devices |
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ADP1048-600-EVALZ Datasheet(HTML) 5 Page - Analog Devices |
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5 / 84 page  Data Sheet ADP1047/ADP1048 Rev. 0 | Page 5 of 84 The combination of a flexible, digitally controlled PFC engine and accurate input power metering facilitates the adoption of intelligent power management systems that are capable of making decisions to improve end-user system efficiency. The device supports additional efficiency improvements through programmable frequency reduction at light load and the capability to reduce the output voltage at light load. The ADP1047/ADP1048 provide enhanced integrated features and functions; the inrush current and soft start control functions provide significant component count reduction with easy design optimization. The devices are designed for high reliability, redundant power supply applications and have extensive and robust protection circuitry: independent overvoltage protection (OVP) and overcurrent protection (OCP), ground continuity monitoring, and ac sensing. Internal overtemperature protection (OTP) is provided whereby the external temperature can be recorded via an external sensing device. The internal 8 kB EEPROM stores all programmed values and allows standalone control without a microcontroller. All parametric reporting and adjustments can be programmed via an easy-to-use GUI. No complex programming is required. The ADP1047/ADP1048 operate from a single 3.3 V supply. The devices are available in a 24-lead QSOP package that is specified over an ambient temperature range of −40°C to +85°C. 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 RES RTD ADD SYNC INRUSH SCL SDA VAC VFB OVP IBAL ILIM PGND AGND CS– 9 10 11 12 16 15 14 13 PSON DGND CS+ PWM2 VCORE PWM AC_OK PGOOD VDD ADP1048 VREC RELAY VOUT BULK CAPACITOR 3.3V PMBus AC INPUT Figure 2. Typical Interleaved Application, ADP1048 |
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