Rainbow-electronics MAX6965 Manual do Utilizador descarregar pdf (Página 17)

MAX6965

9-Output LED Driver with Intensity Control

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Table 10. PWM Intensity Settings (Blink Enabled)

EXAMPLES OF LED BLINK BEHAVIOR

(LED IS ON WHEN OUTPUT IS LOW)

PWM DUTY

CYCLE OUTPUT

BLINK PHASE X

BIT = 0

PWM DUTY

CYCLE OUTPUT

BLINK PHASE X

BIT = 1

OUTPUT

(OR

GLOBAL)

INTENSITY

SETTING

LOW

TIME

HIGH

TIME

LOW

TIME

HIGH

TIME

B L I N K PH A SE 0 R EG IST ER B IT = 0

B L I N K PH A SE 1 R EG IST ER B IT = 1

B L I N K PH A SE 0 R EG IST ER B IT = 1

B L I N K PH A SE 1 R EG IST ER B IT = 0

0x0 1/16 15/16 15/16 1/16

0x1 2/16 14/16 14/16 2/16

0x2 3/16 13/16 13/16 3/16

0x3 4/16 12/16 12/16 4/16

0x4 5/16 11/16 11/16 5/16

0x5 6/16 10/16 10/16 6/16

0x6 7/16 9/16 9/16 7/16

P hase 0: LE D on at l ow i ntensi ty

P hase 1: LE D on at hi g h i ntensi ty

P hase 0: LE D on at hi g h i ntensi ty

P hase 1: LE D on at l ow i ntensi ty

0x7 8/16 8/16 8/16 8/16 Output is half intensity during both blink phases

0x8 9/16 7/16 7/16 9/16

0x9 10/16 6/16 6/16 10/16

0xA 11/16 5/16 5/16 11/16

0xB 12/16 4/16 4/16 12/16

0xC 13/16 3/16 3/16 13/16

0xD 14/16 2/16 2/16 14/16

0xE 15/16 1/16 1/16 15/16

P hase 0: LE D on at hi g h i ntensi ty

P hase 1: LE D on at l ow i ntensi ty

P hase 0: LE D on at l ow i ntensi ty

P hase 1: LE D on at hi g h i ntensi ty

0xF

Static

low

Static

low

Static high

impedance

Static high

impedance

Phase 0: LED on continuously

Phase 1: LED off continuously

Phase 0: LED off continuously

Phase 1: LED on continuously

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 23

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