ML4836CS datasheet(1/15 Pages) MICRO-LINEAR

Part #	ML4836CS

Description	Compact Fluorescent Electronic Dimming Ballast Controller

PDF	15 Pages

Scroll/Zoom	100%

Manufacturer	MICRO-LINEAR [Micro Linear Corporation]

Direct Link	http://www.microlinear.com

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1 / 15 page

July 2000

PRELIMINARY

ML4836*

Compact Fluorescent

Electronic Dimming Ballast Controller

1

GENERAL DESCRIPTION

The ML4836 is a complete solution for a dimmable or a

non-dimmable high efficiency electronic ballast especially

tailored for a compact fluorescent lamp (CFL). The

Bi-CMOS ML4836 contains controllers for dimming

ballast with end-of-life detection capability.

The ballast controller section provides for programmable

starting sequence with individual adjustable preheat and

lamp out-of-socket interrupt times. The ML4836 provides

latch type shut down comparator for ballast controllers in

the event of end-of-life for the CFL.

BLOCK DIAGRAM

FEATURES

s

Programmable start scenario for rapid/instant start lamps

s

Triple frequency control network for dimming or

starting to handle various lamp sizes

s

Programmable restart for lamp out condition to reduce

ballast heating.

s

Internal over-temperature shutdown

s

Low start-up current; < 0.55mA

(* Indicates Part is End Of Life as of July 1, 2000)

4

RSET

6

RT/CT

5

RT2

9

PWDET

7

INTERRUPT

2

LAMP FB

3

LEAO

13

OUT A

12

OUT B

11

PGND

8

RX/CX

14

VCC

1

REF

10

AGND

OUTPUT

DRIVERS

PRE-HEAT AND

INTERRUPT TIMERS

LAMP OUT DETECT

AND

AUTOMATIC LAMP

RESTART

UNDER-VOLTAGE

AND

THERMAL SHUTDOWN

END-OF-LAMP DETECT

AND

POWER SHUTOFF

ANTI-FLASH

COMPENSATION

AND

DIMMING LEVEL

INTERFACE

THREE-FREQUENCY

CONTROL SEQUENCER

VCO

VARIABLE FREQUENCY

OSCILLATOR

CONTROL

AND

GATING

LOGIC

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ML4836CS Datasheet(PDF) 1 Page - Micro Linear Corporation

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