IRS2158DSTRPBF

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Fluorescent Lamp Controller
Frequency:	43.7kHz ~ 48.3kHz
Voltage - Supply:	11.5 V ~ 16.6 V
Current - Supply:	10mA
Current - Output Source/Sink:	--
Dimming:	Yes
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	IRS2158DSPBF

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IRS2158DSTRPBF Application Field and Working Principle

The IRS2158DSTRPBF is a dual-high-side driver integrated circuit (IC) developed by International Rectifier Corporation (IR). The device falls into the low voltage PWM-controlled category of their Power Management and Interface (PMIC) product line. In particular, the chip falls within the Lighting, Ballast Controllers segment of their PMIC offerings.Designed for use in low voltage applications such as 12Vdc, 24Vdc and 48Vdc, the IRS2158DSTRPBF offers a compact and reliable means of controlling switching devices. Its use proves particularly useful in dimming applications, where its high-speed response and low power dissipation features enable it to provide optimized results in a range of consumer, automotive and industrial applications.In terms of its physical makeup, the IRS2158DSTRPBF is a dual-high-side driver integrated circuit (IC) that feature and industry standard 8-bit parallel interface. Its chip offers 8-bit parallel PWM signal input, and is capable of driving high-side resistive, inductive and capacitive loads - up to 60V designs. Working in conjunction with the high-voltage gate, its low RDS(ON) typically delivers 0.3Ω which helps reduce power dissipation in the power MOSFET.The chip also features over temperature, over voltage and open/short circuit protected outputs. This protection provides a safe working environment, by eliminating the risk of overloads and short circuiting. An integrated frequency compensation allows for clean transitions between the device\'s high and low levels, with fast response times to changes in PWM input.In addition, the IRS2158DSTRPBF chip provides an integrated linear current detector, which enables it to deliver a proportional, controllable output current through an external high-side N-channel MOSFET. The current monitoring output can then be used to feedback information to the microcontroller, allowing it to adjust the PWM duty cycle accordingly - ensuring an optimal output. Furthermore, the chip boasts a ‘Pulse Width Modulation Indexing’ feature, which allows the user to determine the operating mode of the pin, for example whether it’s a current flag, a current monitor enable, or an output ground. This feature provides a flexible means of controlling the output current for precise and reliable results.Overall, the IRS2158DSTRPBF chip provides a compact and reliable solution for controlling switching devices in various low voltage applications. Its high-speed response and low power dissipation features enable it to provide optimized results in a range of consumer, automotive and industrial applications. The integrated frequency compensation, linear current detector and ‘Pulse Width Modulation Indexing’ feature further help to ensure precise and reliable operation.

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