HVLED101 datasheet(32/36 Pages) STMICROELECTRONICS

32 / 36 page

Contents

Block diagram .....................................................................2

Typical applications ...............................................................3

Pin Settings .......................................................................4

Electrical data .....................................................................6

4.1

Absolute maximum ratings ...................................................... 6

4.2

ESD immunity levels............................................................ 6

4.3

Thermal data .................................................................. 6

4.4

Recommended operating conditions .............................................. 7

Electrical characteristics...........................................................8

Application information ...........................................................13

6.1

Typical application............................................................. 13

6.2

Operating modes.............................................................. 13

6.2.1

Startup phase .......................................................... 13

6.2.2

Ramp-up phase ........................................................ 14

6.2.3

Active mode ........................................................... 14

6.2.4

Low consumption mode .................................................. 14

6.2.5

Deep low consumption mode .............................................. 15

6.2.6

Auto-restart time and check state ........................................... 15

6.3

Control loop .................................................................. 15

6.3.1

Multiplier and THD optimization ............................................ 16

6.3.2

Maximum power control .................................................. 17

6.3.3

Current sense input...................................................... 18

6.3.4

Feedback inputs ........................................................ 18

6.3.5

Zero Current Detection (ZCD) .............................................. 18

6.4

Primary side regulation feature .................................................. 20

6.4.1

PSR operation.......................................................... 20

6.4.2

PSR burst-mode operation ................................................ 21

6.5

Gate driver ................................................................... 22

6.6

IC supply management......................................................... 22

6.6.1

VCC supply management ................................................. 22

6.6.2

High-voltage startup ..................................................... 23

6.7

Parameter selection ........................................................... 23

6.8

Protections ................................................................... 24

6.8.1

Overcurrent protection (2nd OCP) ........................................... 24

6.8.2

Input overvoltage protection (iOVP) ......................................... 24

HVLED101

Contents

DS14143 - Rev 2

page 32/36

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