A6278ELP-T Allegro Microsystems Inc, A6278ELP-T Datasheet - Page 15

• Manufacturer Part Number: A6278ELP-T
• Description: IC LED DRIVER LINEAR 16-TSSOP
• Manufacturer: Allegro Microsystems Inc
• Type: Linear (Non-Switching)r

Specifications of A6278ELP-T

• Constant Current: Yes
• Topology: 8-Bit Shift Register
• Number Of Outputs: 8
• Internal Driver: Yes
• Type - Primary: General Purpose
• Frequency: 25MHz
• Voltage - Supply: 3 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP Exposed Pad, 16-eTSSOP, 16-HTSSOP
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 75.5mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Efficiency: -

A6278
A6279
16X
0.10
0.25
and
+0.05
–0.06
C
Package LP, 16-pin TSSOP with Exposed Thermal Pad (A6278)
16
1
A
2
5.00 ±0.10
B
3.00
0.65
3.00
0.15 MAX
SEATING
PLANE
1.20 MAX
4.40 ±0.10
Serial-Input, Constant-Current Latched
LED Drivers with Open LED Detection
C
6.40 ±0.20
A Terminal #1 mark area
B
C
For Reference Only
(reference JEDEC MO-153 ABT)
Dimensions in millimeters
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
Reference land pattern layout (reference IPC7351 SOP65P640X110-17M);
All pads a minimum of 0.20 mm from all adjacent pads; adjust as necessary
to meet application process requirements and PCB layout tolerances; when
mounting on a multilayer PCB, thermal vias at the exposed thermal pad land
can improve thermal dissipation (reference EIA/JEDEC Standard JESD51-5)
Exposed thermal pad (bottom surface)
GAUGE PLANE
0.25
4° ±4
0.60 ±0.15
SEATING PLANE
0.15
(1.00)
+0.05
–0.06
1.70
C
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
16
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
1
PCB Layout Reference View
2
0.45
3.00
3.00
0.65
6.10
15