A1569ELJTR-T Integrated Circuits (ICs) |
|
| Allicdata Part #: | 620-1779-2-ND |
| Manufacturer Part#: |
A1569ELJTR-T |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Allegro MicroSystems, LLC |
| Short Description: | IC LED DRIVER HALL EFFECT 8SOIC |
| More Detail: | LED Driver IC 1 Output Linear Dimming 150mA 8-SO... |
| DataSheet: |  A1569ELJTR-T Datasheet/PDF |
| Quantity: | 3000 |
| Moisture Sensitivity Level (MSL): | 3 (168 Hours) |
| Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Specifications
| Voltage - Supply (Max): | 24V |
| Supplier Device Package: | 8-SOIC-EP |
| Package / Case: | 8-SOIC (0.154", 3.90mm Width) Exposed Pad |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -40°C ~ 85°C (TA) |
| Applications: | Lighting |
| Dimming: | -- |
| Frequency: | -- |
| Current - Output / Channel: | 150mA |
| Voltage - Output: | -- |
| Series: | -- |
| Voltage - Supply (Min): | 7V |
| Number of Outputs: | 1 |
| Internal Switch(s): | Yes |
| Topology: | -- |
| Type: | Linear |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Active |
| Lead Free Status / RoHS Status: | -- |
| Packaging: | Tape & Reel (TR) |
Description
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A1569ELJTR-T is a synchronous buck converter step-down DC/DC controller. It has a wide range of applications and is most commonly used in the field of PMIC - LED Drivers. This article will discuss the application field and working principle of A1569ELJTR-T in more detail.A1569ELJTR-T is a low input voltage and low power PMIC - LED driver, mainly used in LED driver solutions. The device features wide voltage range with ultra-low on-resistances and low quiescent current, enabling very low power consumption for LED applications. It is optimized both for high efficiency and fast transient of LEDs. The device integrates a single channel constant current sink over a wide voltage and current range to drive 1-10 high-power LEDs in constant current topologies with PWM dimming. The device also supports both single and two stage configurations for two LEDs in series or for two parallel sets of LEDs.A1569ELJTR-T\'s working principle is based on buck-boost topology. The basic structure consists of a rectifier, a switcher, a transformer, and an inductor. When the power switch is turned on, the current at the output node starts to rise. When the current exceeds the threshold, the transformer generates a voltage boost, which is used to drive the LEDs. The load is also connected to the inductor, to maintain constant voltage on the load side.The device also includes a low-side MOSFET current sensing circuit that provides a well-regulated current to the LEDs, ensuring constant brightness and avoiding the performance degradation often associated with traditional solutions. The device also supports PWM dimming, allowing the lighting system to be adjusted to the desired brightness level.A1569ELJTR-T also features low cost, low power consumption and low EMI. The device also features soft-start to reduce the inrush current and reduce possible system power supply issues. Moreover, the device is designed for protection against under-voltage, over-voltage, over-current, and over-temperature conditions.In summary, A1569ELJTR-T is a low input voltage and low power PMIC - LED driver, mainly used in LED driver solutions. The device features a wide voltage and current range along with low on-resistances and low quiescent current, enabling very low power consumption for LED applications. The device is based on buck-boost topology and features various protection features. It is used for driving 1-10 high-power LEDs in constant current topologies with PWM dimming.
The specific data is subject to PDF, and the above content is for reference
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