HT0740LG-G Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Driven Configuration:	High-Side
Channel Type:	Single
Number of Drivers:	1
Gate Type:	N-Channel, P-Channel MOSFET
Voltage - Supply:	3.15 V ~ 5.5 V
Logic Voltage - VIL, VIH:	0.5V, 3.15V
Current - Peak Output (Source, Sink):	--
Input Type:	Non-Inverting
High Side Voltage - Max (Bootstrap):	400V
Rise / Fall Time (Typ):	650µs, 3ms (Max)
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	HT0740

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Introduction to HT0740LG-G

HT0740LG-G, also known as Regional Gate Drivers, is a type of integrated circuit dedicated to efficiently driving multiple power switches in medium-sized mobile applications. It is developed by Holtek Electronic Inc. to simplify the design of high-efficiency regional power supply and facilitate system reliability, as well as minimize overall power consumption. The device provides some of the most advanced, high-precision performance in mobile power-supply regulation.

Application Field of HT0740LG-G

HT0740LG-G can be applied in various areas, such as mobile phones, hand-held devices, digital cameras, etc. It is ideal for advanced mobile power-management systems, embedded processor applications and Li-ion battery powered systems. HT0740LG-G is suitable for single-cell and multi-cell battery-powered systems, where each cell needs gate-drive current limiting and short-circuit protection. It is also suitable for point-of-load systems where precision power supply regulation is essential.

Working Principle of HT0740LG-G

HT0740LG-G consists of an adaptive output driver, a converter and a control logic. Its output consists of two separate channels: one primary channel (input) and one secondary channel (output). The primary channel consists of a single-ended input port, an indicator and a feedback resistor, which are connected to a single gate-driver output. The secondary channel consists of two linearly-stabilized outputs and one high-voltage output. Both channels use the same high-precision output driver to limit the gate-drive current and provide protection against short-circuits. The adaptive output driver is responsible for reducing the switching noise in the system, thereby improving the overall performance. The converter is responsible for providing a stable output voltage by utilizing the input voltage and the feedback resistor. The control logic is responsible for controlling the output voltage and the on-off transition time of the gate-driver channel.

Conclusion

In conclusion, HT0740LG-G is a type of integrated circuit dedicated to efficiently driving multiple power switches in medium-sized mobile applications. It is suitable for advanced mobile power-management systems, embedded processor applications and Li-ion battery powered systems. It includes an adaptive output driver, a converter and a control logic, which are used to provide a stable output voltage and reduce the switching noise. HT0740LG-G is classified under PMIC - Gate Drivers.

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