9-Output LED Driver with Intensity Control
and Hot-Insertion Protection
Typical Operating Characteristics (continued)
(T A = +25°C, unless otherwise noted.)
SCOPE SHOT OF TWO OUTPUT PORTS
SCOPE SHOT OF TWO OUTPUT PORTS
SINK CURRENT vs. V OL
MASTER INTENSITY SET TO 1/15
MAX6965 toc07
OUTPUT 1
2V/div
MASTER INTENSITY SET TO 14/15
MAX6965 toc08
OUTPUT 1
2V/div
0.35
0.30
ONLY ONE OUTPUT LOADED
V+ = 2V
OUTPUT 1 INDIVIDUAL INTENSITY
OUTPUT 1 INDIVIDUAL INTENSITY
0.25
SET TO 1/16
SET TO 1/16
0.20
0.15
V+ = 2.7V
V+ = 3.6V
OUTPUT 2 INDIVIDUAL INTENSITY
SET TO 15/16
OUTPUT 2
2V/div
OUTPUT 2 INDIVIDUAL INTENSITY
SET TO 14/15
OUTPUT 2
2V/div
0.10
0.05
V+ = 3.3V
0
2ms/div
2ms/div
0
5
10 15 20 25 30 35 40 45 50
SINK CURRENT (mA)
Pin Description
QSOP
1
2
3
4–7, 9–13
8
14
15
16
PIN
QFN
15
16
1
2–5, 7–11
6
12
13
14
PAD
NAME
BLINK
RST
AD0
O0–O8
GND
SCL
SDA
V+
Exposed Pad
FUNCTION
Input Port. Configurable as blink control or general-purpose input.
Reset Input. Active low clears the 2-wire interface and puts the device in same
condition as power-up reset.
Address Input. Sets device slave address. Connect to either GND, V+, SCL, or
SDA to give 4 logic combinations. See Table 1.
Output Ports. O0–O8 are open-drain outputs rated at 7V, 50mA.
Ground. Do not sink more than 190mA into the GND pin.
I 2 C-Compatible Serial Clock Input
I 2 C-Compatible Serial Data I/O
Positive Supply Voltage. Bypass V+ to GND with a 0.047μF ceramic capacitor
Exposed pad on packaged underside. Connect to GND.
_______________________________________________________________________________________
5
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