L6382D(2005) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

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L6382D
(Rev.:2005)

POWER MANAGEMENT UNIT FOR MICROCONTROLLED BALLAST

STMicroelectronics 

L6382D

POWER MANAGEMENT UNIT FOR MICROCONTROLLED

BALLAST

1 FEATURES

■ INTEGRATED HIGH-VOLTAGE START-UP

■ 4 DRIVERS FOR PFC, HALF-BRIDGE & PRE-

HEATING MOSFETS

■ 3.3V MICROCONTROLLER COMPATIBLE

■ FULLY INTEGRATE POWER MANAGEMENT

FOR ALL OPERATING MODES

■ INTERNAL TWO POINT Vcc REGULATOR

■ OVER-CURRENT PROTECTION WITH

DIGITAL OUTPUT SIGNAL

■ CROSS-CONDUCTION PROTECTION

(INTERLOCKING)

■ UNDER VOLTAGE LOCK OUT

■ INTEGRATED BOOTSTRAP DIODE

2 APPLICATIONS

■ DIMMABLE/NON-DIMMABLE BALLST

3 DESCRIPTION

Designed in High-voltage BCD Off-line technolo-

gy, the L6382D is provided with 4 input pins and a

Figure 2. Block Diagram

Figure 1. Package

SO20

Table 1. Order Codes

Part Number

L6382D

L6382DTR

Package

SO20 tube

SO20 in Tape & Reel

high voltage start-up generator conceived for ap-

plications managed by a microcontroller.

It allows the designer to use the same ballast cir-

cuit for different lamp wattage/type by simply

changing the µC software.

The digital input pins - able to receive signals up to

400KHz - are connected to level shifters that pro-

vide the control signals to their relevant drivers;

HVSU

TPR

>600VHIGH

“OVNO” LTAGE

START-UP

G“OEFNF”ERATOR

IC BIAS

mP UVLO

ON

3.3V

SUPPLY

L

O

PSW

G

I

C

TPR

DIM

BOOTSTRAP

RQ

LEVEL SHIFT

3.3V 600V

SQ

RQ

SQ

HED

HSD

LSD

OCP

PFD

BOOT

HSG

OUT

LSG

CSO

CSI

HEG

PFG

REF

GND

Vcc HSI LSI HEI PFI

January 2005

Rev. 2

1/14

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