The ADM1278 is a hot-swap controller that allows the board to be inserted into or removed from a live backplane. The device also integrates a 12-bit analog-to-digital converter (ADC) for current, voltage, and power readback through the PMBusTM interface. The load current is measured with an internal current sense amplifier that measures the voltage across the sense resistor in the power path through the HS+ and HS− pins. The default current limit is set to 20 mV and can be adjusted if necessary by the internal voltage reference to the resistor divider network of the ISET pin.
ADM1278 features and features:
1, the accuracy reaches ±0.3%, support IOUT, VIN, VOUT and temperature readback through 12-bit ADC
2, short circuit response time: 320 ns
3. Turn off when detecting FET failure
4. Independent hot-swap and power monitor inputs allow additional external ADC filtering
5, constant power foldback supports tighter FET SOA protection
6, remote temperature detection with programmable warning and shutdown threshold
ADM1278 classic application:
1, the server
2, power monitoring and control / power budget
3. Central exchange equipment
4. Telecommunications and data communication equipment
Typical application of ADM1278:
Figure 1: Typical application of ADM1278
The GPO1/ALERT1/CONV and GPO2/ALERT2pins can be configured to indicate if a user defined threshold for voltage, current, or power is being exceeded. In this mode, the outputpin is live and is not latched when a warning threshold is exceeded. In Effect, the acf as a digital comparator, where the threshold is set using the warning limit threshold commands. The ALERTx_CONFIG command is used, as for the SMBAlertconfiguration, to select the specific warning threshold to bemonitored. The GPO1/ALERT1/CONV or GPO2/ ALERT2 pinthen indicates if the measured value is above or below thethreshold.
ADM1278 Datasheet: Download Now
More source code and source file download:
Spring Clamp Terminal Block,Spring Terminal Connector,Spring Loaded Terminal Blocks,Spring Cage Terminal Block
Cixi Xinke Electronic Technology Co., Ltd. , https://www.cxxinke.com