ISL2111ABZ-T

Current - Peak Output (Source, Sink):	3A, 4A
Base Part Number:	ISL2111
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C (TJ)
Rise / Fall Time (Typ):	9ns, 7.5ns
High Side Voltage - Max (Bootstrap):	114V
Input Type:	Non-Inverting
Series:	--
Logic Voltage - VIL, VIH:	1.4V, 2.2V
Voltage - Supply:	8 V ~ 14 V
Gate Type:	N-Channel MOSFET
Number of Drivers:	2
Channel Type:	Independent
Driven Configuration:	Half-Bridge
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

ISL2111ABZ-T is a common device used in board level power management integrated circuits (PMIC). It features integrated gate drivers with low charge injection and robust protection capabilities. This device is ideal for a variety of applications, such as motor drives, automotive power management systems, and energy efficient application systems. In this article, we will discuss the application field of ISL2111ABZ-T, as well as its working principle.

Applications

ISL2111ABZ-T is used in various motor drives, automotive power management systems, and energy efficient application systems. It allows for flexibility and integration of various control functions, such as power sequencing, pre-charging, current sensing, and controlling multiple switch loads. In motor drives, the ISL2111ABZ-T is used to provide a low-impedance, high-current drive capability. Its integrated charge termination and clamping circuits help to minimize ringing and EMI, while its up to 4 independent driver channels provides strong, isolated drive capability. In automotive power management systems, the ISL2111ABZ-T helps to achieve efficient power delivery, while minimizing noise and EMI. Its foldback/hiccup feature provides increased protection, while its up to 4 independent driver channels help provide flexibility. Finally, in energy efficient applications, the ISL2111ABZ-T is used for power management of low power system. Its integrated charge and clamping circuits limit ringing and EMI, while its dual N-channel MOSFET driver provides strong, low-RDSon drive capability.

Working Principle

ISL2111ABZ-T is designed to provide an efficient and robust power delivery with minimal noise and ringing. It features an integrated charge pump, and a programmable switch-over voltage. The charge pump helps to reduce EMI due to switching at higher frequencies, while the programmable switch-over voltage helps to reduce stand-by current. ISL2111ABZ-T also features a foldback/hiccup feature that reduces inductive flyback by limiting the load current during inductive transients, thus maximizing reliability and performance. This feature is particularly useful in applications such as motor drives and automotive power management systems that experience high load transients. The integrated driver channels in the ISL2111ABZ-T provide up to 4 independent channels for driving various loads. Each channel has its own set of pre-driver and driver circuits, and each pre-driver circuit includes charge-pumps to reduce switching noise and EMI. The integrated current sense circuits sense the load current during switch-on and switch-off and adjust the charge pump accordingly to reduce ringing.

Conclusion

ISL2111ABZ-T is a common device used in board level power management integrated circuits (PMIC). Its integrated gate drivers feature low charge injection and robust protection capabilities, making it ideal for a variety of applications, such as motor drives, automotive power management systems, and energy efficient application systems. Its working principle involves an integrated charge pump and programmable switch-over voltage, as well as the integrated driver channels and current sense circuits to provide efficient and robust power delivery with minimal noise and ringing.

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