6277 Просмотр технического описания (PDF) - Allegro MicroSystems

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6277

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

Allegro MicroSystems 

6277

8-BIT SERIAL-INPUT,

CONSTANT-CURRENT

LATCHED LED DRIVER

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

Limits

Characteristic

Symbol Test Conditions

Min. Typ. Max. Unit

Supply Voltage Range

Under-Voltage Lockout

Output Current

(any single output)

VDD

VDD(UV)

IO

Output Current Matching

∆IO

(difference between any

two outputs at same VCE)

Output Leakage Current

ICEX

Logic Input Voltage

VIH

VIL

SERIAL DATA OUT Voltage VOL

(SDO1 & SDO2)

VOH

Input Resistance

RI

Operating

4.5 5.0 5.5 V

VDD = 0 to 5 V

VCE = 1.0 V, REXT = 160 Ω

VCE = 0.4 V, REXT = 470 Ω

0.4 V ≤ VCE(A) = VCE(B) ≤ 1.0 V:

REXT = 160 Ω

REXT = 470 Ω

VOH = 20 V

IOL = 1.0 mA

IOH = -1.0 mA

ENABLE input, pull up

3.4

–

4.0

V

100 120 140 mA

34 42 48 mA

– ±1.5 ±6.0 %

– ±1.5 ±6.0 %

–

1.0 5.0 µA

0.7VDD –

–

V

–

– 0.3VDD V

–

–

0.4

V

4.6

–

–

V

150 300 600 kΩ

LATCH & HIGH/LOW inputs, pull down 100 270 400 kΩ

Supply Current

IDD(OFF) REXT = open, VOE = 5 V

REXT = 470 Ω, VOE = 5 V

REXT = 160 Ω, VOE = 5 V

IDD(ON)

REXT = 470 Ω, VOE = 0 V

REXT = 160 Ω, VOE = 0 V

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

–

0.8 1.6 mA

3.5 6.5 9.5 mA

14 17 22 mA

5.0 10 15 mA

20 27 40 mA

115 Northeast Cutoff, Box 15036

4

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

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