A6276 데이터 시트보기 (PDF) - Allegro MicroSystems

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A6276

16-Bit Serial Input, Constant-Current Latched LED Driver

Allegro MicroSystems 

A6276

16-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 

VCE = 0.7 V, REXT = 470 

0.4 V VCE(A) = VCE(B) 0.7 V:

REXT = 250 

REXT = 470 

VOH = 15 V

IOL = 500 μA

IOH = -500 μA

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 , VOE = 0 V

REXT = 250 , 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 k

100 200 400 k

–

0.8 1.4 mA

3.5 6.0 8.0 mA

6.5 11 15 mA

7.0 13 20 mA

10 22 32 mA

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

Allegro MicroSystems, Inc.

5

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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