MAX6946CAWE 查看數據表（PDF） - Maxim Integrated
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产品描述 (功能)
生产厂家
MAX6946CAWE
Maxim Integrated
MAX6946CAWE Datasheet PDF : 24 Pages
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10-Port, Constant-Current LED Driver and
I/O Expander with PWM Intensity Control
(TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
STANDBY CURRENT (ISTBY)
vs. TEMPERATURE
2.0
1.6
VDD = 3.6V
1.2
VDD = 3.3V
VDD = 2.7V
0.8
SUPPLY CURRENT (IDD)
vs. TEMPERATURE
25
VDD = 3.6V VDD = 3.3V
20
15
VDD = 2.7V
10
STANDBY CURRENT (IRST)
vs. TEMPERATURE
25
VDD = 3.6V
20
VDD = 3.3V
15
10
0.4
VDD = 2.25V
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
5
VDD = 2.25V
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
5
VDD = 2.7V
VDD = 2.25V
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
DELTA SUPPLY CURRENT (IDD20)
vs. TEMPERATURE
4.0
3.6
VDD = 3.6V
VDD = 3.3V
3.2
DELTA SUPPLY CURRENT (IDD20)
vs. TEMPERATURE
15
VDD = 3.6V
12
VDD = 3.3V
9
OUTPUT SINKING CURRENT
vs. VEXT - VLED AT 10mA
14
12
10
8
2.8
2.4
VDD = 2.25V
VDD = 2.7V
2.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
6
3
VDD = 2.7V
VDD = 2.25V
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
6
4
2
0
0
1
2
3
4
5
VEXT - VLED (V)
OUTPUT SINKING CURRENT
vs. VEXT - VLED AT 20mA
24
STAGGER PWM PORT WAVEFORMS
(OUTPUT REGISTERS SET TO 0x80)
MAX6946/47 toc08
20
PORT P0
16
2V/div
12
PORT P4
2V/div
8
PORT P7
4
2V/div
0
0
1
2
3
4
5
VEXT - VLED (V)
1ms/div
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