ZXSC300 Просмотр технического описания (PDF) - Zetex => Diodes

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Компоненты Описание

производитель

ZXSC300

SINGLE OR MULTI CELL LED DRIVER SOLUTION

Zetex => Diodes 

ZXSC300

ABSOLUTE MAXIMUM RATING

Supply Voltage

-0.3 to 10V

Maximum Voltage Other Pins -0.3 to VCC+0.3V

Power Dissipation

450mW

Operating Temperature

Storage Temperature

-40 to 85°C

-55 to 150°C

ELECTRICAL CHARACTERISTICS: Test conditions unless otherwise stated: VCC=1.5V, TAMB=25°C

SYMBOL

η

VCC

PARAMETER

Efficiency1

CONDITIONS

Recommended

supply voltage range

MIN.

0.8

TYP. MAX. UNITS

94 %

8V

VCC(min)

IQ

IVDRIVE

ICC

VVDRIVE(high)

VVDRIVE(low)

VISENSE

(threshold)

TCVISENSE

IISENSE

TDRV

Minimum startup

and operating

voltage

Quiescent current2

Base drive current

Supply current3

High level drive

voltage

Low level drive

voltage

Output current

reference voltage

IDRIVE=-600µA, VDRIVE=0.7V

ITDARMIVBE==--1600°0Cµ3A, VDRIVE=0.7V,

VDRIVE = 0.7V, VISENSE = 0V

VDRIVE = 0.7V, VISENSE = 0V

VISENSE = 0V, IVDRIVE =-0.5mA

VISENSE = 50mV, IVDRIVE = 5mA

ISENSE

voltage

temp

co.2

ISENSE input current VISENSE = 0V

Discharge pulse width

0.8 0.92 V

0.9

0.2

1.5

2

VCC-0.3

mA

3.6 mA

4 mA

VCC V

0

0.2 V

14

19

24 mV

0

1.2

0.4

%/°C

-30 -65 µA

1.7 3.2 µs

OPERATING CONDITIONS

SYMBOL

FOSC

PARAMETER

CONDITIONS

Recommended operating frequency4

MIN.

TYP.

1 Application dependent, see reference designs.

2 These parameters guaranteed by design and characterisation

3

4

Total supply current =IQ + IVDRIVE, see typical characteristics

Operating frequency is application circuit dependent. See applications

section.

MAX.

200

UNITS

kHz

ISSUE 3 - NOVEMBER 2006

2

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