ISL61861DCBZ

Programmable Features:	--
Base Part Number:	ISL6186
Feature Pins:	EN1, /FLT
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Current - Supply:	57µA
Operating Temperature:	0°C ~ 70°C
Current - Output (Max):	3A
Voltage - Supply:	2.5 V ~ 5.5 V
Series:	--
Features:	Auto Retry, Fault Timeout, Thermal Limit, Turn On Voltage, UVLO
Applications:	USB
Internal Switch(s):	Yes
Number of Channels:	2
Type:	Hot Swap Controller
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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ISL61861DCBZ Application Field and Working Principle

Power Management Integrated Circuits (PMICs) are electronics systems that provide power for the operation of other circuits. The ability to accurately regulate the output power of these circuits is vital to product performance and reliability. To keep things running efficiently, PMICs are needed to ensure high power delivery with accuracy and stability. One example of such a product is the ISL61861DCBZ Hot Swap Controller (HSC).The ISL61861DCBZ Hot Swap Controller is well suited for electronic systems that call for high electrical current and power delivery. These systems range from mobile phones to medical equipment to industrial applications. In mobile phones and other consumer devices, hot swap controllers are used to ensure a high level of power delivery and safety. In industrial applications, hot swap controllers like the ISL61861DCBZ are used for fault detection and current limiting.

Working Principle

The ISL61861DCBZ works by sensing the input current of the attached load, then adjusting the output voltage accordingly. This allows for high power delivery as well as providing over-temperature, over-voltage and over-current protection. The ISL61861DCBZ is designed to support three different operating modes: enabled, disabled and bypass. In enabled mode, the ISL61861DCBZ operates in a continuous current limited state, providing stability and power delivery to the attached load. In disabled mode, both the output voltage and current are pulled low, ensuring that no current is drawn from the load when not in use. Finally, in bypass mode the ISL61861DCBZ is completely bypassed allowing the attached load to draw its own power supply from the battery or other source. The ISL61861DCBZ is also equipped with protection features to prevent damage from over temperature, over voltage, and over current. This includes a thermal shutdown which prohibits operation of the device above a predetermined temperature. Additionally, an adjustable latch-off feature will shut down operation if the over-voltage or over-current threshold is exceeded.

Conclusion

The ISL61861DCBZ Hot Swap Controller is an ideal solution for a wide range of electrical and power management applications. In addition to providing safe, accurate and efficient power delivery, the adjustable over-voltage and over-current protections as well as the thermal shutdown feature ensure product safety and reliability. The three different operating modes, enabled, disabled, and bypass, provide the necessary flexibility to accommodate any application.

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