LED Driver ICs for High Power LEDs ILD6150 60 V / 1.5 A High Efficiency Step-Down LED Driver IC
●Product Brief
■ The ILD6150 is a hysteretic buck LED driver IC for driving high power LEDs in general lighting applications with average currents up to 1.5 A.
■ The ILD6150 is suitable for LED applications with a wide range of supply voltages from 4.5 V to 60 V. A multifunctional PWM input signal allows dimming of the LEDs with an analog DC voltage or an external PWM signal. To minimize colorshifts of the LEDs an analog PWM voltage is converted to an internal 1.6 kHz PWM signal modulating the LED current.
■ The ILD6150 incorporates an undervoltage lock-out that will shut down the IC when the minimum supply voltage threshold is exceeded. The over-current protection turns off the output stage once the output current is above the current threshold. An integrated over-temperature protection circuit will start to reduce the LED current by internal PWM modulation once the adjustable junction temperature threshold of the IC is exceeded. Realizing a thermal coupling between LED driver IC and LEDs this feature eliminates the need of external temperature sensors as NTCs or PTCs.
■ Thanks to the hysteretic concept the current control is extremely fast and always stable. A maximum contrast ratio of 3000:1 can be achieved depending of the dimensioning of the external components. The efficiency of the LED driver IC is remarkable high, reaching up to 98% of efficiency over a wide range. The output current accuracy from device to device and under all load conditions and over temperature is limited to a minimum, making ILD6150 the perfect fit for LED ballasts.
●Features
■Wide input voltage range from 4.5 V to 60 V
■Capable to provide up to 1.5 A average output current
■Up to 1 MHz switching frequency
■Soft-start capability
■Analog and PWM dimming possible
■Integrated PWM generator for analog dimming input
■Typical 3% output current accuracy
■Very low LED current drift over temperature
■Adjustable over-temperature protection
■Undervoltage lockout
■Over-current protection
■Thermally optimized package: PG-DSO-8-27
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High Efficiency Step-Down LED Driver IC 、 LED Driver ICs 、 LED driver 、 hysteretic buck LED driver IC |
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[ High Power LEDs ][ general lighting ][ Retail ][ office ][ residential downlights ][ Street ][ tunnel lighting ][ LED ballasts ] |
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Datasheet |
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Please see the document for details |
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PG-DSO-8-27 |
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English Chinese Chinese and English Japanese |
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2014-07-09 |
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Revision 3.2 |
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1.8 MB |
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