A6278ELPTR-T Allegro Microsystems Inc, A6278ELPTR-T Datasheet - Page 16

• Manufacturer Part Number: A6278ELPTR-T
• Description: IC,Laser Diode/LED Driver,BICMOS,TSSOP,16PIN,PLASTIC
• Manufacturer: Allegro Microsystems Inc
• Type: Linear (Non-Switching)r

Specifications of A6278ELPTR-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: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 620-1263-2; A6278ELPTR-T

A6278
A6279
24X
0.10
0.25
C
+0.05
–0.06
and
24
1
Package LP, 24-pin TSSOP with Exposed Thermal Pad (A6279)
A
2
7.80 ±0.10
4.32
B
0.65
3.00
0.15 MAX
4.40 ±0.10
SEATING
PLANE
1.20 MAX
Serial-Input, Constant-Current Latched
LED Drivers with Open LED Detection
6.40 ±0.20
C
A Terminal #1 mark area
B
C
For Reference Only
(reference JEDEC MO-153 ADT)
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
TSOP65P640X120-25M); 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
1.65
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
C
0.45
PCB Layout Reference View
4.32
0.65
3.00
6.10
16