AD6315QF datasheet(4/16 Pages) ANACHIP

部件名	AD6315QF

功能描述	1/4- to 1/12 Duty VFD Controller/Driver

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制造商	ANACHIP [Anachip Corp]

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AD6315

1/4- to 1/12 Duty VFD Controller/Driver

Anachip Corp.

www.anachip.com.tw

Rev. A5 Dec 29, 2003

4/16

Absolute Maximum Ratings (T

A = 25°C,VSS = 0V)

Parameter

Symbol

Rating

Unit

Logic supply voltage

VDD

-0.5 to +6.0

V

Driver supply voltage

VEE

VDD + 0.5 to VDD – 40

V

Logic input voltage

VI1

- 0.5 to VDD + 0.5

V

VFD driver output voltage

VO2

VEE - 0.5 to VDD + 0.5

V

LED driver output current

IO1

15

mA

VFD driver output current

IO2

-40 (grid)

-15 (segment)

mA

Power dissipation

PD

800 (Note)

mW

Operating ambient temperature

TA

-25 to +85

°C

Storage temperature

Tstg

-50 to +150

°C

Note : Derate at –6.4W/

°C at TA = 25°C or higher.

Caution : If the absolute maximum rating of even one of the above parameters is exceeded even momentarily, the quality of the

product may be degraded. Absolute maximum ratings, therefore, specify the values exceeding which the product may

be physically damaged. Be sure to use the product within the range of the absolute maximum ratings.

Recommended Operating Range (T

A = -20 to 70°C, VSS = 0V)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Logic supply voltage

VDD

4.5

5

5.5

V

High-level input voltage

VIH

0.7 VDD

VDD

V

Low-level input voltage

VIL

0

0.3 VDD

V

Driver supply voltage

VEE

0

VDD-35

V

Remark :

Maximum power consumption

Pmax = VFD driver dissipation + RL dissipation + LED driver dissipation + dynamic power consumption

Where

segment current = 3mA, grid current = 15mA, and LED current = 20mA

VFD driver dissipation = number of segments x 6 + number of grids/(number of grids + 1) x 30(mW)

RL dissipation ≅ (VDD - VEE)

2 / 50 x (number of segments + 1 ) (mW)

LED driver dissipation = number of LEDs x 20 (mW)

Dynamic power consumption = VDD x 5 (mW)

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