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LM3414MR
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #LM3414MR
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在庫状況8044
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Brand | Texas Instruments |
| Product Type | LED Lighting Drivers |
| Subcategory | Driver ICs |
| Number of Outputs | 1 Output |
| Number of Channels | 1 Channel |
概要
Description
The LM3414MR uses a constant current control mechanism to ensure consistent LED brightness, and it supports PWM dimming for enhanced flexibility in brightness control. It has an adjustable output voltage with an external resistor that allows users to set the desired current. The IC also includes a high-side current sense, which simplifies the circuit design.
Its compact size and efficiency make the LM3414MR a popular choice for designers looking to implement robust LED lighting solutions while minimizing thermal issues and maximizing battery life in portable applications.
Equivalent
Features
1. Constant Current Output: Delivers a programmable output current, allowing precise LED brightness control.
2. Wide Input Voltage Range: Operates from 8V to 60V, making it versatile for various applications.
3. Integrated Switching Regulator: High-efficiency operation with minimal external components needed.
4. Dimming Capability: Supports both PWM and analog dimming methods for flexible brightness control.
5. Thermal Protection: Built-in thermal shutdown feature ensures safe operation under varying conditions.
6. Adjustable Frequency: Switching frequency is adjustable, allowing optimization for efficiency and performance.
7. Compact Package: Offered in a small surface-mount package (SO-8), suitable for space-constrained designs.
8. Fault Protection: Features such as open LED protection enhance reliability and performance in adverse conditions.
Overall, the LM3414MR is ideal for driving LED strings in automotive, outdoor lighting, and general illumination applications.
Pinout
1. VIN (Pin 1): Input voltage supply.
2. SW (Pin 2): Switch node, connects to the inductor.
3. GND (Pin 3): Ground reference.
4. COMP (Pin 4): Compensation pin for stability.
5. CSN (Pin 5): Current sense negative input.
6. CSP (Pin 6): Current sense positive input.
7. Rset (Pin 7): Sets the LED current through an external resistor.
8. EN (Pin 8): Enable pin to turn the device on/off.
The LM3414MR is designed for driving LEDs in applications requiring high efficiency and flexibility in output current control.