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NCP45492 Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP45492 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 12 page ![]() © Semiconductor Components Industries, LLC, 2019 June, 2020 − Rev. 1 1 Publication Order Number: NCP45492/D 26V, 4-Channel Voltage Bus and 4-Channel High-Side Current Shunt Monitor NCP45492 The NCP45492 is a high−performance monolithic IC which can be used to monitor bus voltage and current on four high−voltage power supplies simultaneously. The HV bus voltages and currents are translated to a low−voltage power domain and multiplexed onto a single differential output for measurement externally by common ADCs. The device is configurable to operate either standalone or as a pair, permitting up to eight separate HV power supplies to be monitored and measured. Features • Translates and Scales Shunt and Bus Voltages up to 26 V • Single Device Monitors Four Supplies • May Be Paired for Monitoring Up To Eight Supplies • Very Low Powerdown Current • All Channels Individually Gain Programmable by External Resistor Selection • Fast Settling Time • Real−Time Indication of All Bus Voltages Valid • Adjustable Output Common−Mode Voltage Adapts to Most External ADCs • Lead−Free Device Applications • Computers/Notebooks • Graphical Cards • Power Management/Power Control Loops • Battery Chargers Figure 1. Block Diagram ` RSHUNT VBUS to load Channel 1(of4) Multiplexer from Channel 2 from Channel 4 from Channel 3 Sequence Logic Single-ended to Diff Amp BS_IN 1 SH_O1 DIFF_OUT_N DIFF_OUT_P SH_IN_P1 SH_IN_N1 GND_FET ENABLE BS_OK BS_REF BG_REF_OUT VREF Generator R5 R6 ` R7 R8 CM_REF_IN ` MUX_SEL R1 R2 R3 R4 SKIP MODE_SEL www.onsemi.com (Top View) QFN32 4x4 CASE 485CD 1 45492 = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package CCCCC = Country of Assembly 45492 ALYWG CCCCC MARKING DIAGRAM SH_IN_P1 BS_IN1 SH_IN_N2 SH_IN_P2 BS_IN2 SH_O2 NC SH_IN_N1 BG_REF_OUT CM_REF_IN SH_O4 BS_REF NC DIFF_OUT_N DIFF_OUT_P NC 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 33: GND Device Package Shipping† ORDERING INFORMATION NCP45492XMNTWG QFN32 (Pb−Free) 4000 / Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. PIN CONFIGURATION |
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