A6275EA(2000) データシートの表示（PDF） - Allegro MicroSystems

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A6275EA
(Rev.:2000)

8-BIT SERIAL-INPUT, CONSTANT CURRENT LATCHED LED DRIVER

Allegro MicroSystems 

6275

8-BIT SERIAL-INPUT,

CONSTANT-CURRENT

LATCHED LED DRIVER

ELECTRICAL CHARACTERISTICS at TA = +25°C, VDD = 5 V (unless otherwise noted).

Characteristic

Supply Voltage Range

Under-Voltage Lockout

Output Current

(any single output)

Output Current Matching

(difference between any

two outputs at same VCE)

Output Leakage Current

Logic Input Voltage

SERIAL DATA OUT

Voltage

Input Resistance

Supply Current

Symbol

VDD

VDD(UV)

IO

∆IO

ICEX

VIH

VIL

VOL

VOH

RI

IDD(OFF)

IDD(ON)

Test Conditions

Operating

VDD = 0 ¡ 5 V

VCE = 0.7 V, REXT = 250 Ω

VCE = 0.7 V, REXT = 470 Ω

0.4 V ≤ VCE(A) = VCE(B) ≤ 0.7 V:

REXT = 250 Ω

REXT = 470 Ω

VOH = 15 V

IOL = 500 µA

IOH = -500 µ4A

ENABLE Input, Pull Up

LATCH Input, Pull Down

REXT = open, VOE = 5 V

REXT = 470 Ω, VOE = 5 V

REXT = 250 Ω, VOE = 5 V

REXT = 470 Ω, VOE = 0 V

REXT = 250 Ω, VOE = 0 V

Limits

Min. Typ. Max. Unit

4.5 5.0 5.5 V

3.4

–

4.0

V

64.2 75.5 86.8 mA

34.1 40.0 45.9 mA

– ±1.5 ±6.0 %

– ±1.5 ±6.0 %

–

1.0 5.0 µA

0.7VDD –

VDD

V

GND – 0.3VDD V

–

–

0.4

V

4.6

–

–

V

150 300 600 kΩ

100 200 400 kΩ

–

0.8 1.4 mA

3.5 6.0 8.0 mA

6.5 11 15 mA

5.0 10 14 mA

8.0 16 24 mA

Typical Data is at VDD = 5 V and is for design information only.

115 Northeast Cutoff, Box 15036

4

Worcester, Massachusetts 01615-0036 (508) 853-5000

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