HV9910BDB1 Supertex, HV9910BDB1 Datasheet

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HV9910BDB1

Manufacturer Part Number
HV9910BDB1
Description
LED Lighting Development Tools OFF-LINE HIGH BRIGHTNESS LED DRIVER DEMOBOARD
Manufacturer
Supertex
Datasheet
1.HV9910BDB1.pdf (6 pages)

Specifications of HV9910BDB1

Product
Demonstration Boards
Core
HV9910B
Operating Supply Voltage
110 V
Factory Pack Quantity
1
For Use With
High Power LEDs
General Description
The HV9910BDB1 demoboard is an offline, high current
LED driver designed to drive a 40V LED string at 1.4A from
a 110V input. The demoboard uses Supertex’s HV9910B
LED driver IC to drive a buck converter.
The HV9910BDB1 has a typical full load efficiency of 88%,
with the buck converter efficiency (excluding the diode
bridge rectifier and EMI filter) at 93%. The demoboard also
meets CISPR-15 conducted EMI standards.
The output current can be adjusted in two ways - either
with linear dimming using the onboard potentiometer or
with PWM dimming by applying a TTL-compatible square
wave signal at the PWMD terminal. Using linear dimming,
the output current of the HV9910DB1 can be lowered to
about 0.1A (note: zero output current can be obtained only
by PWM dimming).
Connection Diagram
WARNING!!!
Supertex inc.
Do not connect earth-grounded test instruments. Doing so will short the AC line, resulting in damage to the
instrument and/or the HV9910BDB1. Use floating high voltage differential probes or isolate the demoboard
by using an isolating transformer.
There is no galvanic isolation. Dangerous voltages are present when connected to the AC line.
Supertex inc.
Off-Line, High Brightness, 1.4A
●
1235 Bordeaux Drive, Sunnyvale, CA 94089
LED Driver Demo Board
90 - 135VAC
50/60Hz
1
10 - 40V, 1.4A max.
Specifications
Input voltage
Output voltage
Output current
Output current ripple (typ)
Full load efficiency (@110V)
Power factor (@110V)
Input current (@110V)
Input current THD (@110V)
Switching frequency (typ)
Minimum output current (@110V)
Conducted EMI
Temperature rise of heatsink
(@110V input and full load)
Open LED protection
Output short circuit protection
Dimensions
●
Tel: 408-222-8888
●
www.supertex.com
HV9910BDB1
90 - 135Vrms, 50/60Hz
86.4mm X 58.4mm
40% (peak-peak)
Meets CISPR-15
0.83A rms
1.4A max
10 - 40V
50kHz
117%
50°C
88%
0.1A
0.64
yes
no

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HV9910BDB1 Summary of contents

Page 1

... WARNING!!! Do not connect earth-grounded test instruments. Doing so will short the AC line, resulting in damage to the instrument and/or the HV9910BDB1. Use floating high voltage differential probes or isolate the demoboard by using an isolating transformer. There is no galvanic isolation. Dangerous voltages are present when connected to the AC line. ...

Page 2

... GND terminals. However, since there is no galvanic isolation on the board, care must be taken to prevent damage to the PWM dimming source and/or the HV9910BDB1. One simple way is to isolate the LED driver from the AC line using an isolation transformer. Another approach is to use an opto-isolator to drive the PWMD pin as shown in the figure below. ...

Page 3

... Falling Edge of LED Current during PWM Dimming Supertex inc. Steady State waveforms at 150Vdc input and full load output Rising Edge of LED Current during PWM Dimming LED Current ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 3 HV9910BDB1 Input Voltage Input Current PWMD Voltage LED Current ● Tel: 408-222-8888 ● ...

Page 4

... Conducted EMI Measurements at Full Load and 110V AC input Silk Screen Supertex inc. CISPR-15 Limit ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 4 HV9910BDB1 ● Tel: 408-222-8888 ● www.supertex.com ...

Page 5

... Schematic Diagram t Supertex inc ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 5 HV9910BDB1 ● Tel: 408-222-8888 ● www.supertex.com ...

Page 6

... Fairchild Semi Radial SMD0805 SMD0805 SMT SMD0805 SMD0805 SMD1206 SO-16 does not assume responsibility for use of devices described, and limits its liability Supertex inc. Supertex inc. 6 HV9910BDB1 Manufacturer’s Part Manufacturer Number EPCOS Inc B32522C3105J EPCOS Inc B32521C3474J Panasonic EEU-EE2D680 Panasonic ECQ-U2A104MV --- ...

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