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NCP45492

ON Semiconductor
Part Number NCP45492
Manufacturer ON Semiconductor
Description 4-Channel Voltage Bus and 4-Channel High-Side Current Shunt Monitor
Published Mar 23, 2020
Detailed Description 26V, 4-Channel Voltage Bus and 4-Channel High-Side Current Shunt Monitor NCP45492 The NCP45492 is a high−performance mo...
Datasheet PDF File NCP45492 PDF File

NCP45492
NCP45492

Overview
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 VBUS R3 R1 SH_IN_P1 RSHUNT ` to load SH_IN_N1 BS_IN 1 Channel 1 (of4) R4 Sequence Logic MUX_SEL MODE_SEL SH_O1 R2 GND_FET ENABLE SKIP from Channel 2 from Channel 3 from Channel 4 Multiplexer Single-ended to Diff Amp DIFF_OUT_P DIFF_OUT_N VREF Generator BG_REF_OUT BS_REF R5 R6 ` R7 Figure 1.
Block Diagram BS_OK CM_REF_IN R8 ` www.
onsemi.
com 1 QFN32 4x4 CASE 485CD MARKING DIAGRAM 45492 ALYWG CCCCC 45492 = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package CCCCC = Country of Assembly PIN CONFIGURATION SH_IN_N1 1 SH_IN_P1 2 BS_IN1 3 SH_IN_N2 4 SH_IN_P2 5 BS_IN2 6 SH_O2 7 NC 8 33: GND 24 BS_REF 23 BG_REF_OUT 22 CM_REF_IN 21 NC 20 DIFF_OUT_P 19 DIFF_OUT_N 18 NC 17 SH_O4 GND_FET SH_O3 BS_IN3 SH_IN_P3 SH_IN_N3 BS_IN4 SH_IN_P4 SH_IN_N4 (Top View) ORDERING INFORMATION Device NCP45492XMNTWG Package QFN32 (Pb−Fre...


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