AD6315 参数 Datasheet PDF下载

AD6315

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

Absolute Maximum Ratings

(T

A

= 25°C,V

SS

= 0V)

Parameter

Logic supply voltage

Driver supply voltage

Logic input voltage

VFD driver output voltage

LED driver output current

VFD driver output current

Power dissipation

Operating ambient temperature

Storage temperature

Note : Derate at –6.4W/°C at T

A

= 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.

Symbol

V

DD

V

EE

V

I1

V

O2

I

O1

I

O2

P

D

T

A

T

stg

Rating

-0.5 to +6.0

V

DD

+ 0.5 to V

DD

– 40

- 0.5 to V

DD

+ 0.5

V

EE

- 0.5 to V

DD

+ 0.5

15

-40 (grid)

-15 (segment)

800 (Note)

-25 to +85

-50 to +150

Unit

V

V

V

V

mA

mA

mW

°C

°C

Recommended Operating Range

(T

A

= -20 to 70°C, V

SS

= 0V)

Parameter

Logic supply voltage

High-level input voltage

Low-level input voltage

Driver supply voltage

Symbol

V

DD

V

IH

V

IL

V

EE

Min.

4.5

0.7 V

DD

0

0

Typ.

5

Max.

5.5

V

DD

0.3 V

DD

V

DD

-35

Unit

V

V

V

V

Remark :

Maximum power consumption

Pmax = VFD driver dissipation + R

L

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)

R

L

dissipation

≅

(V

DD

- V

EE

)

2

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

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

Dynamic power consumption = V

DD

x 5 (mW)

Anachip Corp.

www.anachip.com.tw

4/16

Rev. A5 Dec 29, 2003