ADP1051(RevPrA) 데이터 시트보기 (PDF) - Analog Devices

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ADP1051
(Rev.:RevPrA)

Digital Controller for Isolated Power Supply with PMBus Interface

Analog Devices 

ADP1051

Preliminary Technical Data

Pin No.

20

21

22

23

24

Mnemonic

AGND

RES

ADD

RTD

OVP

EP

Description

IC Common Analog GND. The internal analog circuitry ground and digital circuitry ground is star connected to

this pin through bonding wires.

Resistor Input. This pin sets up the internal reference for internal PLL Frequency. Connect a 10 kΩ resistor

(±0.1%) from RES to AGND. This signal is referred to AGND.

Address Select Input to program I2C/PMBus address. Connect a resistor from ADD to AGND. This signal is

referred to AGND.

Thermistor Input. Place a thermistor 100 kΩ 1% beta = 4250 1% in parallel with a 16.5 kΩ (1%) resistor. This pin

is referenced to AGND. Connect to AGND if not used.

Over Voltage Protection. This signal is used as redundant OVP protection. This signal is referred to VS-.

Exposed Pad. The ADP1051 has an exposed thermal pad on the underside of the package. For increased

reliability of the solder joints and maximum thermal capability, it is recommended that the pad be soldered to

the PCB AGND plane.

Rev. PrA | Page 10 of 17

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