Table 10. pwm intensity settings (blink enabled) – Rainbow Electronics MAX6964 User Manual

Page 17

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background image

MAX6964

17-Output LED Driver/GPO

with Intensity Control

______________________________________________________________________________________

17

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

REGISTER BIT = 0

PWM DUTY CYCLE

OUTPUT BLINK

PHASE X

REGISTER = 1

OUTPUT

(OR

GLOBAL)

INTENSITY

SETTING

LOW
TIME

HIGH

TIME

LOW
TIME

HIGH

TIME

BLINK PHASE 0

REGISTER BIT = 0

BLINK PHASE 1

REGISTER BIT = 1

BLINK PHASE 0

REGISTER BIT = 1

BLINK PHASE 1

REGISTER BIT = 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

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