MAX6946ATE+ Maxim Integrated Products, MAX6946ATE+ Datasheet - Page 5
![IC LED DRIVER LINEAR 16-TQFN](/photos/6/66/66625/16-tqfn_exp_pad_21-0136_sml.jpg)
MAX6946ATE+
Manufacturer Part Number
MAX6946ATE+
Description
IC LED DRIVER LINEAR 16-TQFN
Manufacturer
Maxim Integrated Products
Type
Linear (I²C Interface)r
Datasheet
1.MAX6947ATE.pdf
(24 pages)
Specifications of MAX6946ATE+
Constant Current
Yes
Topology
Open Drain, PWM
Number Of Outputs
10
Internal Driver
Yes
Type - Primary
Backlight
Type - Secondary
RGB, White LED
Frequency
400kHz
Voltage - Supply
2.25 V ~ 3.6 V
Voltage - Output
7V
Mounting Type
Surface Mount
Package / Case
16-TQFN Exposed Pad
Operating Temperature
-40°C ~ 125°C
Current - Output / Channel
20mA
Internal Switch(s)
Yes
Number Of Segments
3
Low Level Output Current
21120 uA
Operating Supply Voltage
2.25 V to 3.6 V
Maximum Supply Current
4 mA
Maximum Power Dissipation
1176 mW
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Efficiency
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
(T
A
= +25°C, unless otherwise noted.)
2.0
1.6
1.2
0.8
0.4
4.0
3.6
3.2
2.8
2.4
2.0
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
DELTA SUPPLY CURRENT (I
V
STANDBY CURRENT (I
DD
V
DD
= 3.6V
vs. TEMPERATURE
vs. TEMPERATURE
= 2.25V
TEMPERATURE (°C)
10-Port, Constant-Current LED Driver and
TEMPERATURE (°C)
I/O Expander with PWM Intensity Control
_______________________________________________________________________________________
V
V
V
V
DD
DD
DD
DD
V
= 3.6V
= 3.3V
= 2.7V
= 3.3V
DD
24
20
16
12
= 2.7V
8
4
0
STBY
V
0
DD
DD20
= 2.25V
)
OUTPUT SINKING CURRENT
)
vs. V
1
EXT
V
EXT
2
- V
- V
LED
LED
25
20
15
10
15
12
5
0
9
6
3
0
3
(V)
AT 20mA
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
DELTA SUPPLY CURRENT (I
4
V
DD
V
SUPPLY CURRENT (I
DD
vs. TEMPERATURE
= 2.25V
vs. TEMPERATURE
= 3.6V
V
TEMPERATURE (°C)
TEMPERATURE (°C)
DD
5
V
= 3.6V
DD
= 2.7V
V
V
DD
DD
Typical Operating Characteristics
V
DD
= 2.7V
= 3.3V
V
DD
= 2.25V
STAGGER PWM PORT WAVEFORMS
= 3.3V
(OUTPUT REGISTERS SET TO 0x80)
DD
DD20
)
)
1ms/div
25
20
15
10
14
12
10
5
0
8
6
4
2
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
0
MAX6946/47 toc08
OUTPUT SINKING CURRENT
STANDBY CURRENT (I
1
vs. V
vs. TEMPERATURE
TEMPERATURE (°C)
V
EXT
DD
V
V
DD
PORT P0
2V/div
PORT P4
2V/div
PORT P7
2V/div
EXT
2
= 3.6V
- V
= 2.7V
- V
LED
LED
3
(V)
AT 10mA
V
V
DD
DD
= 3.3V
RST
= 2.25V
4
)
5
5