HV9967BDB1 Supertex, HV9967BDB1 Datasheet - Page 4

• Manufacturer Part Number: HV9967BDB1
• Description: LED Lighting Development Tools 4W LED DRIVER DEMO BOARD
• Manufacturer: Supertex

Specifications of HV9967BDB1

• Product: Demonstration Boards
• Core: HV9967B
• Operating Supply Voltage: 20 VDC to 60 VDC
• For Use With: HV9967B

PWM Dimming Operation:
shows the overall operation of the circuit with PWM dimming input and Fig.6 and 7 show the rise and fall times of
PWM dimming operation at 4xLED in series with an external TTL square wave signal is shown in Figs.5 - 7. Fig.5
Fig.6: PWM Dimming at 24V – Rise Time
Supertex inc.
1235 Bordeaux Drive, Sunnyvale, CA 94089
Ch1 (Blue)
Ch4 (Green)
Time Scale
Ch1 (Blue)
Ch4 (Green)
Time Scale
the LED current during PWM dimming.
Fig.5: PWM Dimming at 24V
:
:
4
:
:
:
:
Fig.7: PWM Dimming at 24V – Fall Time
Output LED Current (50mA/div)
2ms/div
Output LED Current (50mA/div)
2µs/div
Drain-Source Voltage (2V/div)
Drain-Source Voltage (2V/div)
Tel: [phone]
www.supertex.com
HV9967BDB1