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ALED1642GWXTTR
+StücklisteIC LED DRVR LIN PWM 40MA 24TSSOP
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HerstellerSTMikroelektronik
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Herstellerteil #ALED1642GWXTTR
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Auf Lager9620
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Spezifikationen
| Attribut | Wert |
| PartStatus | Active |
| Type | Linear |
| Topology | Shift Register |
| InternalSwitch(s) | Yes |
| NumberofOutputs | 16 |
| Voltage-Supply(Min) | 3V |
| Voltage-Supply(Max) | 5.5V |
| Voltage-Output | 19V |
| Current-Output/Channel | 40mA |
| Frequency | 30MHz |
| Dimming | PWM |
| Applications | Backlight |
| OperatingTemperature | -40°C ~ 150°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 24-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| SupplierDevicePackage | 24-TSSOP-EP |
| BaseProductNumber | ALED1642 |
| Grade | Automotive |
Übersicht
Description
Key features of the ALED1642GWXTTR include 16 constant current output channels, which provide uniform brightness across all connected LEDs. The device supports PWM (Pulse Width Modulation) dimming for each channel, allowing for flexible brightness control. Additionally, it offers diagnostic and fault detection capabilities, ensuring reliable operation by monitoring for open or short circuits.
The ALED1642GWXTTR operates at a wide voltage range and includes thermal management features to prevent overheating. Its compact package makes it suitable for space-constrained applications. This LED driver is well-regarded for its high output accuracy and energy efficiency, enabling designers to implement complex LED systems with ease.
Equivalent
1. Texas Instruments TLC5940 - a 16-channel PWM LED driver.
2. Maxim Integrated MAX6966 - a 10-port, constant current LED driver.
3. NXP PCA9955A - a 16-channel I2C-bus controlled LED driver.
4. Linear Technology LT3745 - a 16-channel LED driver with PWM control.
Check datasheets for exact compatibility, as specifications and features may vary.
Features
1. LED Control: Each of the 16 channels can independently drive an LED, allowing for precise and flexible control over lighting patterns.
2. Current Control: The driver supports configurable current settings for each channel, providing consistent brightness and efficient power usage.
3. PWM Dimming: Integrated PWM dimming capability offers smooth brightness transitions and energy savings.
4. Diagnostic Features: Built-in diagnostic tools help monitor and detect issues like open or shorted LEDs, enhancing reliability.
5. Interface: It typically includes a serial interface for easy integration with microcontrollers and other digital systems.
6. Voltage Range: The driver supports a wide voltage range, accommodating various power supply conditions.
7. Thermal Management: Designed to handle heat effectively, ensuring longevity and performance stability across different operating conditions.
These features make the ALED1642GWXTTR suitable for automotive, industrial, and consumer electronics applications where precise LED control is essential.
Pinout
Key features and functions include:
- 16-channel LED driver: Each channel can be individually controlled to provide constant current outputs, making it ideal for applications requiring fine-tuned lighting control.
- Current regulation: Ensures consistent LED performance by maintaining a steady current flow, improving LED longevity and reliability.
- PWM capability: Allows for brightness control via pulse-width modulation, providing flexibility in applications requiring dimming or variable light output.
- Diagnostic features: Includes open-circuit detection and over-temperature protection to enhance the robustness of the LED system.
This driver IC is commonly used in automotive and general lighting applications where precise LED control and reliability are critical.
Manufacturer
Application
1. LED Display Panels: Used in both indoor and outdoor signage for precise brightness control.
2. Automotive Lighting: Suitable for dashboards, ambient lighting, and exterior lights like taillights and indicators.
3. Architectural Lighting: Enables dynamic lighting effects in buildings.
4. Consumer Electronics: Employed in devices like TVs and monitors for backlighting.
5. Industrial Lighting: Used in control systems for factory lighting.
6. Digital Billboards: Supports high-density LED arrays for high-resolution displays.
These areas benefit from the device's ability to handle high current and provide accurate dimming functions.