A8530EESTR-T Integrated Circuits (ICs) |
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| Allicdata Part #: | 620-1201-2-ND |
| Manufacturer Part#: |
A8530EESTR-T |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Allegro MicroSystems, LLC |
| Short Description: | IC LED DRIVER RGLTR DIM 16QFN |
| More Detail: | LED Driver IC 6 Output DC DC Regulator Switched Ca... |
| DataSheet: |  A8530EESTR-T Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
| Series: | -- |
| Packaging: | Tape & Reel (TR) |
| Part Status: | Obsolete |
| Type: | DC DC Regulator |
| Topology: | Switched Capacitor (Charge Pump) |
| Internal Switch(s): | Yes |
| Number of Outputs: | 6 |
| Voltage - Supply (Min): | 2.7V |
| Voltage - Supply (Max): | 5.5V |
| Voltage - Output: | -- |
| Current - Output / Channel: | 30mA, 100mA (Flash) |
| Frequency: | 1MHz |
| Dimming: | Multi-Step |
| Applications: | Backlight, Camera Flash |
| Operating Temperature: | -40°C ~ 85°C (TA) |
| Mounting Type: | Surface Mount |
| Package / Case: | 16-WFQFN Exposed Pad |
| Supplier Device Package: | 16-QFN/MLP (3x3) |
| Base Part Number: | A8530 |
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A8530EESTR-T is an LED driver from TI. It is a pulse-width modulation (PWM) integrated circuit (IC) which is designed to be used as a general-purpose low-power DC-DC converter. This IC is designed to accept input between 2.5 V and 6.5 V and can drive up to 360 mA of load current with a duty cycle up to 30%.
Applications
The A8530EESTR-T is commonly used for driving LEDs for many purposes such as backlighting, decorative lighting and signage. This efficient DC-DC converter can be used for motor control and other applications as well.
Features
- Small footprint
- 3MHz switching frequency
- Wide input supply range from 2.5V-6.5V
- 150mA Internal Soft-start current
- Thermal shutdown and over-current protection
- High efficiency up to 94%
- LED open-circuit protection
- Inductorless operation
Working Principle
The A8530EESTR-T works by regulating the PWM voltage of an LED string. This IC employs a peak current method of regulation, where the current through the LED string is controlled by a current sense resistor. The output voltage is set by adjusting the duty cycle of the PWM signal. This allows for precise control of the LED string current and the precise control of the LED string’s brightness. The IC also provides a soft-start circuit which allows for a gradual increase in output current when the device is first powered up.
Conclusion
The A8530EESTR-T is an efficient and versatile pulse-width modulation (PWM) integrated circuit (IC) which can be used for driving LEDs for many purposes such as backlighting, decorative lighting and signage. It is designed to accept input between 2.5 V and 6.5 V and can drive up to 360 mA of load current with a duty cycle up to 30%. The IC utilizes a peak current method of regulation to provide precise control of the LED string current and the precise control of the LED string’s brightness. Additionally, this device provides a soft-start circuit which allows for a gradual increase in output current when the device is first powered up.
The specific data is subject to PDF, and the above content is for reference
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