HV9931DB5 Supertex, HV9931DB5 Datasheet

HV9931DB5

Manufacturer Part Number

HV9931DB5

Description

Power Management IC Development Tools DOUBLE-BUCK LED DEMOBOARD

Manufacturer

Supertex

Datasheet

1.HV9931DB5.pdf (4 pages)

Specifications of HV9931DB5

Product

Power Management Development Tools

Tool Is For Evaluation Of

HV9931

Description/function

LED Driver Demo Board

Factory Pack Quantity

Current page: 1 of 4
Download datasheet (531Kb)

General Description

The Supertex HV9931DB5 demoboard is a high brightness

(HB) LED power driver to supply one HB LED, using the

HV9931 IC from either a 110 or 220VAC supply. The

HV9931DB5 is ideal for incandescent retroﬁt applications,

as it features a very small size and a low component count.

The HV9931DB5 avoids the use of electrolytic capacitors,

which reduce the lifetime of the circuit in high ambient

temperatures (which would be found in the base of a bulb).

The demo board can be used to test the performance of the

HV9931 as a constant current driver to power LEDs.

The HV9931DB5 uses a unique cascaded converter circuit,

with a single active switch, to achieve the high step down

conversion ratio required for operating low voltage LEDs

from a high input voltage. This circuit allows the converter

to operate at a high switching frequency, about 120kHz,

while still regulating the output current at all times. The

HV9931DB5 supplies 350mA to a 4.0V(max) LED with input

voltages ranging from 90 – 265VAC 50/60Hz.

Board Layout and Connections

Connections:

Supertex inc.

Connect the universal input to the AC IN terminals.

Connect the output to the LED terminals:

- Red wire to anode of LED

- Black wire to cathode of LED.

Supertex inc.

Universal Input, Single High Brightness,

●

1235 Bordeaux Drive, Sunnyvale, CA 94089

LED Driver Demoboard

R10

R11

BR1

R12

Speciﬁcations

Parameter

Input

LED current set point

Maximum output voltage

Switching frequency

Board dimensions

●

AC1

Tel: 408-222-8888

MOV1

AC2

●

www.supertex.com

OD = 29mm, HT = 15mm

AC Line

90 -260 VAC

90 – 265V AC, 50/60Hz

HV9931DB5

POS

LED+

(constant off-time,

LED-

350mA ± 10%

OFF

= 8.0μs)

variable

Value

4.0V

Related parts for HV9931DB5

HV9931DB5 Summary of contents

Page 1

... This circuit allows the converter to operate at a high switching frequency, about 120kHz, while still regulating the output current at all times. The HV9931DB5 supplies 350mA to a 4.0V(max) LED with input voltages ranging from 90 – 265VAC 50/60Hz. Board Layout and Connections Connections: 1 ...

Page 2

... LED current. The LED should glow when the AC power is turned on. Note on Current Measurement: The HV9931DB5 is designed to regulate the output current at 350mA (the recommended current level for most 1.0W HB LEDs). This can easily be veriﬁed by applying a DC voltage greater than 50V at the input of the demo board. ...

Page 3

... Fig. 4a: Conducted EMI test (CISPR 15) at 120VAC Schematic Diagram 200Ω BR1 - + MOV1 430V R2 AC2 200Ω C5 0.1µF 50V HV9931DB5 PCB Layers Top Layer Supertex inc. Fig. 4b: Conducted EMI test (CISPR 15) at 240VAC L3 L1 2200µH 470µH C3 0.1µF 400V C2 0.033µF R3 400V 10Ω ...

Page 4

... Yageo America 0805 Yageo America 0805 Yageo America 0805 Yageo America does not assume responsibility for use of devices described, and limits its liability Supertex inc. Supertex inc. 4 HV9931DB5 Manufacturer’s Part Number HD06-T ECQ-E2154KB ECQ-E4333KF ECQ-E4104KF GRM31CR71A475MA01L C0805C103K5RACTU BYD57J BYD77D BZT52C33-7 ...

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