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RY7312 Asyn dimmable LED driver IC, 30V, 1.2A, SOT89-5
2021-06-02 16:49
物料编码：70380010
产品型号：RY7312
产品规格：RY7312 Asyn dimmable LED driver IC, 30V, 1.2A, SOT89-5
产品类型：Asyn dimmable LED driver IC
封装类型：SOT89-5
产品品牌：RYCHIP
Features
• Wide 6V to 30V Operating Input Range
• 1.2A Continuous Output Current
• Maximum 1MHz Switching Frequency
• Over Temperature Protection
• Inherent Open-Circuit LED Protection
• High-side Current Sense
• Hysteretic Control: No Compensation
• 400mΩ Low RDS(ON) Internal Power MOSFETs
• High efficiency (up to 98%)
• Adjustable Constant LED current
• PWM and Analog Dimming
• Typical 5% Output Current Accuracy
• Available in SOT89-5 Package
• -40°C to +85°C Temperature Range
Applications
• Low voltage halogen replacement LEDs
• Automotive/Decorative LED Lighting
• Low-Voltage Halogen Replacement
• Signs/Emergency Lighting
• LED Backlighting
• SELV Lighting
General Description
The RY7312 is step-down regulator for dimmable LED driver, which is designed in continuous current mode for
driving the high-brightness LEDs from a wide input voltage of 6V to 30V. The RY7312 employs a hysteretic control
scheme to regulate LED current. Moreover, the control scheme provides optimal loop stabilization and a very quick
response time. The RY7312 implements PWM and analog dimming together on the EN/DIM pin. The RY7312
includes under-voltage lockout and thermal overload protection to prevent damage in the event of an output overload.
The RY7312 requires a minimal number of readily available, external components and is available in a space saving
SOT89-5 package.
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