ZXSC310 查看數據表（PDF） - Zetex => Diodes

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ZXSC310

LED DRIVER SOLUTION FOR LCD BACKLIGHTING

Zetex => Diodes 

ZXSC310

ABSOLUTE MAXIMUM RATINGS:

Supply Voltage

Maximum Voltage other pins

Power Dissipation

Operating Temperature

Storage Temperature

-0.3 to 10V

-0.3 to VCC+0.3V

450mW

-40 to 85 °C

-55 to 150°C

ELECTRICAL CHARACTERISTICS:

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

Symbol

␩

Parameter

Efficiency1

Conditions

VCC

Recommended supply

voltage range

VCC(min)

IQ

IVDRIVE

ICC

Minimum startup and

operating voltage

Quiescent current2

Base drive current

Supply current3

IDRIVE=-600µA, VDRIVE=0.7V

IDRIVE=-600µA, VDRIVE=0.7V,

TAMB=-10°C3

VEN = VCC (enabled)

VEN = 0V (standby)

VDRIVE = 0.7V, VISENSE = 0V

VDRIVE = 0.7V, VISENSE = 0V

Min Typ

0.8

Max

94

8

Units

%

V

0.8 0.92

V

0.9

0.2

mA

5

10

µA

1.5

3.5

mA

2

4

mA

VVDRIVE(high) High level drive voltage

VVDRIVE(low)

VSTDN(high)

VSTDN(low)

ISTDN

VISENSE

(threshold)

TCVISENSE

IISENSE

TDRV

Low level drive voltage

Device enabled

Device in standby mode

Enable input current

Output current reference

voltage

ISENSE voltage temp co.2

ISENSE input current

Discharge Pulse Width

VISENSE = 0V, IVDRIVE =-0.5mA

VISENSE = 50mV, IVDRIVE = 5mA

VCC

-0.3

0

0.7

VCC

V

0.2

V

V

0.15

V

-1

1

µA

14 19

24

mV

VISENSE = 0V

0.4

%/°C

0 -30 -65

µA

1.2 1.7 3.2

µs

OPERATING CONDITIONS

Symbol

FOSC

Parameter

Recommended operating

frequency4

Conditions

Min Typ

Max

200

Units

kHz

1 Application dependent, see reference designs

2 These parameters guaranteed by Design and characteristics

3 Total supply current =IQ + IVDRIVE, see typical characteristics

4 Operating frequency is application circuit dependent. See applications section.

SEMICONDUCTORS

2

ISSUE 2 - MARCH 2004

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