DS3994Z+

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	CCFL Controller
Frequency:	20kHz ~ 80kHz
Voltage - Supply:	4.5 V ~ 5.5 V
Current - Supply:	9mA
Current - Output Source/Sink:	--
Dimming:	Yes
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	28-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	28-SOIC
Base Part Number:	DS3994

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DS3994Z+ application field and working principleThe DS3994Z+ is a 10 MHz, digital, quad-channel amplifier driver, manufactured by Texas Instruments. It is a high-voltage, low-power, wideband performance amplifier driver suitable for amplifying LED\'s, automotive headlights, and other applications. It features an output of up to 40Vdc and a maximum output current of 3.2amps. This device is designed to meet a wide variety of applications including automotive LED lighting (headlights, interior lights, backlighting, and others), illumination-level LEDs, and high power LED lighting (street lighting, floodlights, and tunnel lighting).The DS3994Z+ uses a three-phase, full-wave rectifier topology to provide efficient drive to multiple connected loads. The three-phase rectifier uses three sets of power components - an output capacitor, an inductor, and an output resistor. The output capacitor stores the rectified DC output voltage, while the inductor provides filtering for the ripple current across the output capacitor. The output resistor dissipates any excessive energy across the inductor during switching.The DS3994Z+ has a built-in thermal sensor that allows it to detect any excessive temperature conditions within the device. It can shut down the device if the temperature exceeds a certain threshold. This is especially helpful in applications that require high power, such as automotive headlight applications.The DS3994Z+ allows for a fast turn-on time and can drive up to four LEDs simultaneously. It also has a flexible output configuration and high operating frequency of up to 10MHz. The device is designed for applications with high efficiency and low EMI and meets the EN60595 standard.Overall, the DS3994Z+ is a great choice for automotive lighting, illumination-level LEDs, and high power LED lighting, such as street and tunnel lighting. It is a high-voltage, low-power, and wideband performance amplifier driver with a flexible output configuration and a built-in thermal sensor for added safety. With its fast-switching, high-efficiency operation, and low EMI characteristics, this device is sure to meet your needs.

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