产品概述
The LM3429Q1MH/NOPB is a versatile high voltage N-channel MOSFET Controller for constant current LED drivers. It can be easily configured in buck, boost, buck-boost and SEPIC topologies. This flexibility, along with an input voltage rating of 75V, makes the LM3429 ideal for illuminating LEDs in a very diverse, large family of applications. Adjustable high-side current sense voltage allows for tight regulation of the LED current with the highest efficiency possible. It uses predictive off-time (PRO) control, which is a combination of peak current-mode control and a predictive off-timer. This method of control eases the design of loop compensation while providing inherent input voltage feed-forward compensation. It includes a high-voltage start-up regulator that operates over a wide input range of 4.5 to 75V. The internal PWM controller is designed for adjustable switching frequencies of up to 2MHz, thus enabling compact solutions.
- Adjustable current sense voltage
- High-side current sensing
- Input under-voltage protection
- Over-voltage protection
- PWM dimming
- Analogue dimming
- Cycle-by-cycle current limit
- Programmable switching frequency
- Thermal shutdown
- 2R, 1A Peak MOSFET gate drive
- Green product and no Sb/Br
应用
发光二极管照明, 车用, 工业
产品信息
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- 升压, 降压, 降压-升压, SEPIC
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- 4.5V
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- 75V
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- 72V
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- 5A
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- 2MHz
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- 1输出
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- 表面安装
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- HTSSOP
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- 14引脚
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- -40°C
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- 125°C
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- -
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- AEC-Q100
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- MSL 1 -无限制