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IR36021 Folha de dados(PDF) 13 Page - International Rectifier |
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IR36021 Folha de dados(HTML) 13 Page - International Rectifier |
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13 / 41 page ![]() IR36021 DIGITAL POL BUCK CONTROLLER with I2C AND PMBus Interface February 27, 2013 | Rev 3.5 13 PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNIT Fault Protection OVP threshold during Start‐up (until output reaches 1V) Selectable 1.2 1.275 1.35 V OVP Operating threshold 1 (programmable) Relative to VID (selectable) 150‐500 mV OVP filter delay 1 160 ns Output UVP threshold 1 (Programmable) Relative to VID (selectable) ‐150 to ‐500 mV Fast OCP range 1 Per phase 0‐62 A Fast OCP filter bandwidth 1 60 kHz Slow OCP filter bandwidth 1 Programmable (equal to telemetry band‐width) 3.2 or 52 Hz OCP System accuracy 1 System excluding DCR/sense resistor ±2 % VR_HOT range 1 64 to 127 °C OTP range 1 VR_HOT level + OTP Range 64 to 135 °C Dynamic Phase Control Current filter bandwidth 1 For Phase drop 5.3 KHz Timing Information Automatic Configuration from MTP 1 t3‐t2 (figure 8) 3.3V ready to end of configuration 1 ms Automatic trim time 1 t4‐t3 (Figure 8) 4 ms EN Delay (to ramp start) 1 3 us VID Delay (to ramp start) 1 Loop bandwidth dependent 5 us PGood1/PGood2 Delay 1 After reaching boot voltage 20 us Notes 1. Guaranteed by design but not tested in production 2. PWM operating frequency will vary slightly as the number of phases changes (increases/decreases) because of the internal calculation involved in dividing a switching period evenly into the number of active phases. 3. System accuracy is for a temperature range of 0°C to +85°C. Accuracies will derate by a factor of 1.5x for temperatures outside the 0°C to +85°C range. |
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