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BM81028AMWV-ZE2 Datasheet(PDF) 6 Page - Rohm |
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BM81028AMWV-ZE2 Datasheet(HTML) 6 Page - Rohm |
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6 / 48 page  Datasheet Datasheet 6/44 TSZ02201-0313AAF00430-1-2 © 2013 ROHM Co., Ltd. All rights reserved. 12.May.2015 Rev.003 www.rohm.com TSZ22111・15・001 BM81028AMWV ● Electrical Characteristics (Unless otherwise specified, Ta=25℃, VCC, PVCC1, PVCC2=3.3V) 1. Buck DC/DC converter block 1 (VDD1) PARAMETER SYMBOL LIMITS Unit Condition MIN TYP MAX Output Voltage Range VDD1 1.7 － 1.9 V 50mV step 2.4 － 2.6 Output Voltage Accuracy VDD1_R 1.782 1.8 1.818 V VDD1=1.8V setting 2.475 2.5 2.525 V VDD1=2.5V setting Soft Start time VDD1_SS 0.5 1 2 msec The time where 90% of set voltage is reached. Timer Latch Starting Time VDD1_SCP － VDD1×0.8 － V SWB1 H Side ON Resistance RON_H1 － 300 480 mΩ SWB1 L Side ON Resistance RON_L1 － 300 480 mΩ SWB1 H Side Leak Current IL_H1 － 0 10 µA SWB1 L Side Leak Current IL_L1 － 0 10 µA Current Limit ILMT_SWB1 1.0 1.5 － A Discharge Resistance DISR_VDD1 － 25 50 Ω 2. Buck DC/DC converter block 2 (VDD2) PARAMETER SYMBOL LIMITS Unit Condition MIN TYP MAX Output Voltage Range VDD2 1.1 － 1.3 V 50mV step Output Voltage Accuracy VDD2_R 1.188 1.2 1.212 V VDD2=1.2V setting Soft Start Time VDD2_SS 0.5 1 2 msec The time where 90% of set voltage is reached. Timer Latch Starting Time VDD2_SCP － VDD2×0.8 － V SWB2 H Side On Resistance RON_H2 － 300 480 mΩ SWB2 L Side On Resistance RON_L2 － 300 480 mΩ SWB2 H Side Leak Current IL_H2 － 0 10 µA SWB2 L Side Leak Current IL_L2 － 0 10 µA Current Limit ILMT_SWB2 1.0 1.5 － A Discharge Resistance DISR_VDD2 － 25 50 Ω 3. Boost DC/DC converter block (AVDD) PARAMETER SYMBOL LIMITS Unit Condition MIN TYP MAX Output Voltage Range AVDD 8.0 － 14.5 V 0.1V step Output Voltage Accuracy1 AVDD_R1 10.395 10.5 10.605 V AVDD=10.5V setting Output Voltage Accuracy2 AVDD_R2 -1.0 0 +1.0 % AVDD=9.7 to 11.2V setting Output Voltage Accuracy3 AVDD_R3 -1.7 0 +1.7 % AVDD=8.0 to 9.6V, 11.3 to 12.8V setting Output Voltage Accuracy4 AVDD_R4 -2.0 0 +2.0 % AVDD=12.9 to 14.5V setting Load Switch Soft Start time LS_SS 1 2 4 msec Soft Start Time AVDD_SS 3.5 5 6.5 msec AVDD=10.5V setting Timer Latch Starting Time AVDD_SCP － AVDD×0.8 － V Over-Voltage Protection voltage AVDD_OVP － 16 － V SW H Side On Resistance RON_H3 － 350 560 mΩ SW L Side On Resistance RON_L3 － 350 560 mΩ SW H Side Leak Current IL_H3 － 0 10 µA SW L Side Leak Current IL_L3 － 0 10 µA Current Limit ILMT_SW 1.5 2.0 － A Load Switch ON Resistor RON_LS － 250 400 mΩ Maximum Duty DMAX 80 90 － % Discharge Resistance DISR_AVDD － 25 50 Ω |
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