A6281EESTR-T Allegro Microsystems Inc, A6281EESTR-T Datasheet - Page 2

• Manufacturer Part Number: A6281EESTR-T
• Description: IC LED DRIVER PWM CONTROL 16-QFN
• Manufacturer: Allegro Microsystems Inc
• Type: PWM Controlr

Specifications of A6281EESTR-T

• Topology: Linear, PWM
• Constant Current: Yes
• Number Of Outputs: 3
• Internal Driver: Yes
• Type - Secondary: RGB
• Frequency: 5MHz
• Voltage - Supply: 4.75 V ~ 17 V
• Voltage - Output: 1 V ~ 3 V
• Mounting Type: Surface Mount
• Package / Case: 16-WFQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 150mA
• Internal Switch(s): Yes
• Led Driver Application: Architectural Lighting, Displays
• No. Of Outputs: 3
• Output Current: 165mA
• Output Voltage: 3V
• Input Voltage: 4.75V To 17V
• Operating Supply Voltage (typ): 5/9/12/15V
• Number Of Segments: 3
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: QFN EP
• Pin Count: 16
• Mounting: Surface Mount
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 17V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 620-1218-2

A6281
Description (continued)
bus, thus eliminating the need for a separate chip supply bus or an
external regulator.
Applications include:
▪ Colored, large-character LED signs
▪ Scrolling, colored marquees
Selection Guide
Absolute Maximum Ratings
Package Thermal Resistance
Thermal Characteristics
*For additional information, refer to the Allegro website.
A6281EESTR-T
*Contact Allegro for additional packing options.
Load Supply Voltage
Output Voltage
Output Current
Ground Current
VREG Pin
Logic Outputs
Logic Input Voltage Range
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
Part Number
Characteristic
Characteristic
1500 pieces/reel
Packing*
Symbol
T
V
V
J
I
Symbol
I
(max)
T
V
OUT
GND
V
T
OUT
REG
V
stg
IN
O
A
4500
4000
3500
3000
2500
2000
1500
1000
I
R
500
θJA
0
25
16 terminal QFN
Power Dissipation versus Ambient Temperature
3-Channel Constant Current LED Driver
OUT0, OUT1, OUT2
CO, LO, OEO, SDO
CI, LI, OEI, SDI
Range E
4-layer PCB based on JEDEC standard
50
Mounting
Temperature (°C)
with Programmable PWM Control
75
▪ Architectural lighting
▪ High intensity monochrome displays
▪ Large video and graphic displays
The A6281 is supplied in a 3 mm × 3 mm 16-terminal QFN (suffix
‘ES’) package, with 0.75 mm nominal overall height. The package
is lead (Pb) free with 100% matte-tin leadframe plating.
Notes
100
Test Conditions*
125
150
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
–55 to 150
–0.5 to 17
–40 to 85
–0.3 to 7
Rating
170
600
150
17
6
7
Units
mA
mA
ºC
ºC
ºC
V
V
V
V
V
Rating Units
47
ºC/W
2