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LM3644YFFR
+NomenclatureIC LED DRV RGLTR I2C 12DSBGA
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FabricantTexas Instruments
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Pièce fabricant #LM3644YFFR
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En stock5596
365 Garantie qualité 24h/24
7*24 Garantie de service 24h/24
90-Garantie après-vente 24h/24
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Spécifications
| Attribut | Valeur |
| Part Status | Active |
| Type | DC DC Regulator |
| Topology | Step-Up (Boost) |
| Internal Switch(s) | Yes |
| Number of Outputs | 2 |
| Voltage - Supply (Min) | 2.5V |
| Voltage - Supply (Max) | 5.5V |
| Current - Output / Channel | 1.5A |
| Frequency | 2MHz, 4MHz |
| Dimming | I2C |
| Applications | Camera Flash |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 12-UFBGA, DSBGA |
| Supplier Device Package | 12-DSBGA |
| Base Product Number | LM3644 |
Présentation
Description
Key features of the LM3644YFFR include a flexible I²C-compatible interface for easy control, programmable current settings, and the ability to operate in flash, torch, and indicator modes. It incorporates a synchronous boost converter, ensuring efficient power delivery while minimizing heat generation in small, compact applications. The device also includes safety features such as over-voltage protection, LED short protection, and thermal shutdown to ensure reliable operation.
Its small footprint and high integration level make the LM3644YFFR ideal for designers seeking compact, efficient solutions in portable electronic devices. The device comes in a small YFF (DSBGA) package, enhancing its suitability for space-constrained applications.
Equivalent
Features
1. High Output Current: It provides up to 1.5A current for flash mode and 400mA for torch mode, ensuring bright and efficient illumination.
2. Flexible Control: The driver supports I²C-compatible interface for easy programmability and control.
3. Efficiency: It uses a high-efficiency synchronous boost converter, enhancing battery life by minimizing power loss.
4. LED Fault Detection: The LM3644YFFR includes protection features like LED short-circuit detection and over-temperature protection.
5. Small Package Size: Offered in a compact YFF (DSBGA) package, it is ideal for space-constrained applications.
6. Safety Features: It includes a safety timer and adjustable flash timeout feature to prevent overheating.
7. Wide Input Voltage Range: It operates over a wide input voltage range, providing flexibility in various battery configurations.
These features make the LM3644YFFR a robust solution for enhancing the performance of camera flash systems in portable electronics.
Pinout
This package has 16 contact points but is often referred to by the general description of having 16 pins. The LM3644YFFR provides several key functions, including adjustable output current, programmable flash timing, and torch mode for continuous lighting. It features I²C-compatible control, which allows for precise management of the flash functions and current settings. The device also includes safety features such as LED fault detection and a thermal shutdown capability to prevent overheating.
Overall, the LM3644YFFR is designed to deliver efficient performance in a compact footprint, making it suitable for space-constrained applications like smartphones and tablets.