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OKDY-T Datasheet(PDF) 5 Page - Murata Power Solutions Inc. |
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OKDY-T Datasheet(HTML) 5 Page - Murata Power Solutions Inc. |
5 / 41 page Note 1: See section I2C/SMBus Setup and Hold Times – Definitions. Note 2: Monitorable over PMBus Interface. Note 3: Automatic restart ~70 or 240 ms after fault if the fault is no longer present. Continuous restart attempts if the fault reappear after restart. See Operating Information for other fault response options. Note 4: Tsw is the switching period. Note 5: Within +/-3% of VO Note 6: See section Soft-start Power Up. Note 7: Tracking functionality is designed to follow a VTRK signal with slew rate < 2.4 V/ms. For faster VTRK signals accuracy will depend on the regulator bandwidth. Note 8: See section Over Temperature Protection (OTP). Note 9: See section External Capacitors. Note 10: See section Initialization Procedure. Note 11: See graph Output Ripple vs External Capacitance and Operating information section Output Ripple and Noise. Note 12: See graph Load Transient vs. External Capacitance and Operating information section External Capacitors. Note 13: Time for reaching 100% of nominal Vout. Note 14: For Vout < 1.0 V accuracy is +/-10 mV. For further deviations see section Output Voltage Adjust using PMBus. Note 15: Accuracy here means deviation from ideal output voltage level given by configured droop and actual load. Includes line, load and temperature variations. Note 16: For current sharing the Output Voltage Delay Time must be reconfigured to minimum 15 ms. Note 17: For steady state operation above 1.05 x 3.3 V, please contact your local Murata sales representative. Note 18: A minimum load current is not required if Low Power mode is used (monitoring disabled). Note 19: See sections Dynamic Loop Compensation and Power Good. Characteristics Conditions Min Typ Max Unit Over Temperature Protection, OTP at P2 See Note 8 OTP threshold 120 °C OTP threshold range PMBus configurable -40…+125 °C OTP hysteresis 25 °C OTP hysteresis range PMBus configurable 0-165 °C Fault response See Note 3 Automatic restart, 240 ms V IL Logic input low threshold SYNC, SA0, SA1, SCL, SDA, GCB, CTRL, VSET 0.8 V V IH Logic input high threshold 2 V I IL Logic input low sink current CTRL 0.6 mA V OL Logic output low signal level SYNC, SCL, SDA, SALERT, GCB, PG 0.4 V V OH Logic output high signal level 2.25 V I OL Logic output low sink current 4mA I OH Logic output high source current 2mA t set Setup time, SMBus See Note 1 300 ns t hold Hold time, SMBus See Note 1 250 ns t free Bus free time, SMBus See Note 1 2 ms C p Internal capacitance on logic pins 10 pF Initialization time See Note 10 40 ms Output Voltage Delay Time See Note 6 Delay duration See Note 16 10 ms Delay duration range PMBus configurable 5-500000 Delay accuracy turn-on -0.25/+4 ms Delay accuracy turn-off -0.25/+4 ms Output Voltage Ramp Time See Note 13 Ramp duration 10 ms Ramp duration range PMBus configurable 0-200 Ramp time accuracy 100 μs Current sharing operation 20 % VTRK Input Bias Current V VTRK = 5.5 V 110 200 μA VTRK Tracking Ramp Accuracy (V O - VVTRK) 100% tracking, see Note 7 -100 100 mV Current sharing operation 2 phases, 100% tracking V O = 1.0 V, 10 ms ramp ±100 mV VTRK Regulation Accuracy (V O - VVTRK) 100% Tracking -1 1 % Current sharing operation 100% Tracking -2 2 % Current difference between products in a current sharing group Steady state operation Max 2 x READ_IOUT monitoring accuracy Ramp-up 4 A Number of products in a current sharing group 7 Monitoring accuracy READ_VIN vs V I 3 % READ_VOUT vs V O 1% READ_IOUT vs I O I O = 0-50 A, TP1 = 0 to +95 °C V I = 4.5-14 V, VO = 1.0 V ±3.0 A READ_IOUT vs I O I O = 0-50 A, TP1 = 0 to +95 °C V I = 4.5-14 V, VO = 0.6-3.3 V ±5.0 A OKDx-T/50-W12-C 50A Digital PoL DC-DC Converter Series MDC_OKDx-T/50-W12-C.A04 Page 5 of 41 www.murata-ps.com/support |
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