Rainbow-electronics MAX6965 Manual do Utilizador descarregar pdf (Página 5)

MAX6965

9-Output LED Driver with Intensity Control

_______________________________________________________________________________________ 5

SCOPE SHOT OF TWO OUTPUT PORTS

MAX6965 toc07

2ms/div

OUTPUT 1

2V/div

OUTPUT 2

2V/div

MASTER INTENSITY SET TO 1/15

OUTPUT 1 INDIVIDUAL INTENSITY

SET TO 1/16

OUTPUT 2 INDIVIDUAL INTENSITY

SET TO 15/16

SCOPE SHOT OF TWO OUTPUT PORTS

MAX6965 toc08

2ms/div

OUTPUT 1

2V/div

OUTPUT 2

2V/div

OUTPUT 1 INDIVIDUAL INTENSITY

SET TO 1/16

MASTER INTENSITY SET TO 14/15

OUTPUT 2 INDIVIDUAL INTENSITY

SET TO 14/15

SINK CURRENT vs. V

MAX6965 toc09

SINK CURRENT (mA)

(V)

45403530252015105

0.05

0.10

0.15

0.20

0.25

0.30

0.35

050

V+ = 3.3V

V+ = 3.6V

V+ = 2V

V+ = 2.7V

ONLY ONE OUTPUT LOADED

Typical Operating Characteristics (continued)

= +25°C, unless otherwise noted.)

QSOP QFN

NAME FUNCTION

1 15 BLINK Input Port. Configurable as blink control or general-purpose input.

216RST

Reset Input. Active low clears the 2-wire interface and puts the device in same

condition as power-up reset.

3 1 AD0

Address Input. Sets device slave address. Connect to either GND, V+, SCL, or

SDA to give 4 logic combinations. See Table 1.

4–7, 9–13 2–5, 7–11 O0–O8 Output Ports. O0–O8 are open-drain outputs rated at 7V, 50mA.

8 6 GND Ground. Do not sink more than 190mA into the GND pin.

14 12 SCL I

C-Compatible Serial Clock Input

15 13 SDA I

C-Compatible Serial Data I/O

16 14 V+ Positive Supply Voltage. Bypass V+ to GND with a 0.047µF ceramic capacitor

— PAD Exposed Pad Exposed pad on packaged underside. Connect to GND.

Pin Description

1 2 3 4 5 6 7 8 9 10 ... 22 23

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