ACASA4702S4702P1AT

Number of Pins:	8
Height - Seated (Max):	0.022" (0.55mm)
Size / Dimension:	0.126" L x 0.059" W (3.20mm x 1.50mm)
Supplier Device Package:	0612
Package / Case:	1206 (3216 Metric), Convex, Long Side Terminals
Mounting Type:	Surface Mount
Applications:	Automotive AEC-Q200, Voltage Divider (TCR Matched)
Operating Temperature:	-55°C ~ 155°C
Temperature Coefficient:	±25ppm/°C
Power Per Element:	125mW
Series:	ACA - Precision
Resistor-Ratio-Drift:	±15 ppm/°C
Resistor Matching Ratio:	±0.05%
Number of Resistors:	4
Tolerance:	±0.1%
Resistance (Ohms):	47k
Circuit Type:	Isolated
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Resistor Networks, Arrays: ACASA4702S4702P1AT Application Field and Working PrincipleResistor networks are widely used as voltage control elements, current splitters, ground protection, peak current/voltage limiters, impedance matching and noise cancellation devices, among other applications. The ACASA4702S4702P1AT is a common resistor network device from the range of ACASA products manufactured by ams AG. In this article we will discuss the ACASA4702S4702P1AT’s application field and working principle.Application Field
The ACASA4702S4702P1AT is primarily designed for automotive applications, in particular in controlling various functional circuits related to powertrain, with the device designed to limit peak current. It can also be used in various low and medium power control circuits. Some more specific examples of applications including powering ventilation fans, beam control, fuel injectors, and headlights.Working Principle
The ACASA4702S4702P1AT is a four resistor network composed of two independent half-bridge circuits. Each half-bridge has two resistors, with their resistances usually set to the same value with a tolerance of ±2%. The device is normally used as an on/off switch, driven by a control signal from a microcontroller or other circuit.When the control signal input to the ACASA4702S4702P1AT is low, the switch is off and so no current flows through the network. When the control signal is high, the switch turns on and current runs through the network. The current is divided equally between the two half-bridges and is limited by the resistors. The total current through the network is limited to the sum of the two resistances in the half-bridges.Due to the current-limiting properties of the resistors, the ACASA4702S4702P1AT can also be used to ensure the power circuit does not draw more current than specified. For example, in applications where the power circuit has a large capacitive load, the network can be used as a peak current/voltage limiter.Conclusion
To summarize, the ACASA4702S4702P1AT is a four resistor network made of two half-bridges and is primarily designed for automotive applications. It can be used to control various functional elements of the powertrain, as well as other low and medium power control circuits. The device works by dividing the current equally between two half-bridges, and uses the built-in resistors to limit the current flow. The function of the ACASA4702S4702P1AT can also be used to ensure the power circuit does not draw more than the maximum current specified.

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