A6285EET-T Allegro Microsystems Inc, A6285EET-T Datasheet - Page 7

• Manufacturer Part Number: A6285EET-T
• Description: IC LED DRIVER LINEAR 32-QFN
• Manufacturer: Allegro Microsystems Inc
• Type: Linear (Non-Switching)r

Specifications of A6285EET-T

• Operating Temperature: -40°C ~ 85°C
• Topology: PWM
• Constant Current: Yes
• Number Of Outputs: 16
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: Color, White LED
• Frequency: 30MHz
• Voltage - Supply: 3 V ~ 5.5 V
• Voltage - Output: 12V
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Current - Output / Channel: 80mA
• Internal Switch(s): Yes
• Led Driver Application: Display
• No. Of Outputs: 16
• Output Current: 80mA
• Output Voltage: 12V
• Input Voltage: 3V To 5.5V
• Dimming Control Type: PWM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1224-5

A6285
Package Power Dissipation
Package Thermal Resistance
1
2
Additional thermal information available on Allegro website.
Actual performance significantly affected by application.
Figure 4. Value of external reference resistor, REXT, versus
channel Constant Output Current
100
0.1
10
Characteristic
1
0
10
20
30
I
O
(max) (mA)
40
Symbol
V
16-Channel Constant-Current Latched LED Driver
DC= 127
50
DS
R
P
θJA
= 1 V
D
Figure 6. Power Dissipation versus temperature
5.0
4.0
3.0
2.0
1.0
0
60
25
Operating Characteristics
with Open LED Detection and Dot Correction
Thermal Characteristics
Continuous, T
4-layer PCB based on JEDEC standard
70
AMBIENT TEMPERATURE IN °C
50
80
A
75
= 25°C
Figure 5. Output Voltage versus Output Current at various
levels of R
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
100
Test Conditions
0
0
0
0.3 0.6 0.9 1.2
EXT
0.3
125
0.6
0.9
1
150
R
R
R
R
1.2
EXT
EXT
EXT
EXT
V
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
O
1.5 1.8 2.1
= 600 Ω
= 800 Ω
= 1.2 kΩ
= 2.4 kΩ
V
(V)
1.5
O
(V)
1.8
2.1
2.4 2.7
2.4
Value
2.7
3.9
32
3.0
3
2
Units
°C/W
W
7