HV9910BLG

The HV9910BLG is dsigned as an open loop current mode control LED driver IC. It can be programmed to operate in either a constant frequency or constant off-time mode. It includes an 8 to 450V linear regulator which allows it to work from a wide range of input voltages without the need for an external low voltage supply. It includes a PWM dimming input that can accept an external control signal with a duty ratio of 0 to 100% and a frequency of up to a few kilohertz. It also includes a 0 to 250mV linear dimming input which can be used for linear dimming of the LED current.

HV9910BLG has seven features. (1)Switch mode controller for single switch LED drivers. (2)Enhanced drop-in replacement to the HV9910. (3)Open loop peak current controller. (4)Internal 8.0V to 450V linear regulator. (5)Constant frequency or constant off-time operation. (6)Linear and PWM dimming capability. (7)Requires few external components for operation. Those are all the main features.

Some HV9910BLG absolute maximum ratings have been concluded into several points as follow. (1)Its Vin to GND would be from -0.5V to +470V. (2)Its CS, LD, PWMD, GATE, RT would be from -0.3V to Vdd+0.3V. (3)Its Vdd to GND would be 12V. (4)Its junction temperature range would be from -40°C to 150°C. (5)Its storage temperature range would be from -65°C to 150°C. (6)Its continuous power dissipation would be 830mW. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of HV9910BLG are concluded as follow. (1)Its input DC supply voltage range would be min 8.0V and max 450V. (2)Its shut-down mode supply current would be typ 0.5mA and max 1mA. (3)Its internally regulated voltage would be min 7.25V and typ 7.5V and max 7.75V. (4)Its line regulation of Vdd would be min 0V and max 1V. (5)Its load regulation of Vdd would be min 0mV and max 100mV. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!