A6277ELW Allegro Microsystems Inc, A6277ELW Datasheet - Page 5

• Manufacturer Part Number: A6277ELW
• Description: IC LED DRIVER LINEAR 20-SOIC
• Manufacturer: Allegro Microsystems Inc
• Type: Linear (Non-Switching)r

Specifications of A6277ELW

• Constant Current: Yes
• Topology: 8-Bit Shift Register
• Number Of Outputs: 8
• Internal Driver: Yes
• Type - Primary: General Purpose
• Frequency: 20MHz
• Voltage - Supply: 4.5 V ~ 5.5 V
• Voltage - Output: 1V
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 120mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Efficiency: -

SWITCHING CHARACTERISTICS at T
R
RECOMMENDED OPERATING CONDITIONS
A6277
EXT
C
Propagation Delay Time
Propagation Delay Time
Output Fall Time
Output Rise Time
C
Supply Voltage
Output Voltage
Output Current
Logic Input Voltage
Clock Frequency
h
h
a
a
= 470
a r
a r
c
c
e t
e t
i r
i r
t s
t s
, I
c i
c i
O
= 40 mA, V
8-Bit Serial Input Constant-Current Latched LED Driver
S
S
L
y
y
t
t
V
= 3 V, R
V
V
I
V
f
m
m
I
pHL
pLH
I
OH
OL
CK
t
t
DD
O
IH
f
r
IL
O
b
b
l o
l o
T
CLOCK-OUT
LATCH-OUT
ENABLE-OUT
CLOCK-SERIAL DATA OUT
CLOCK-OUT
LATCH-OUT
ENABLE-OUT
CLOCK-SERIAL DATA OUT
90% to 10% voltage
10% to 90% voltage
C
Continuous, any one output
SERIAL DATA OUT
SERIAL DATA OUT
C
L
e
A
o
a
= 65 , C
t s
c s
n
= 25 C, V
d
a
C
t i
d
o
o i
e
n
n
o
d
s
p
t i
r e
o i
n
n
n
n
L
t a
n
n
n
DD
= 10.5 pF.
s
o i
n
= V
IH
= 5 V, V
1
2
CE
= 0.4 V, V
0.7V
M
M
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
150
150
4.5
i
–
–
–
–
–
–
–
–
–
–
–
–
–
–
i
. n
. n
DD
T
T
350
350
350
300
400
380
250
250
5.0
1.0
40
40
y
y
–
–
–
–
–
–
IL
. p
. p
= 0 V,
Limits
0.3V
M
1000
1000
1000
1000
1000
1000
1000
M
600
150
-1.0
5.5
4.0
1.0
1
a
–
–
a
–
0
. x
. x
DD
M
U
U
mA
mA
mA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V
n
n
H
t i
t i
z
4