A6275 Allegro MicroSystems, A6275 Datasheet

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A6275

Manufacturer Part Number
A6275
Description
8-BIT SERIAL-INPUT/ CONSTANTCURRENT LATCHED LED DRIVER
Manufacturer
Allegro MicroSystems
Datasheet
1.A6275.pdf (12 pages)

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Meier Automation Equipment Co., Limited Meier Automation Equipment Co., Limited
Part Number:
A6275EA
Manufacturer:
ALLEGRO/雅丽高
Quantity:
20 000
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Part Number:
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Company:
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Part Number:
A6275ELW
Manufacturer:
ALLEGRO
Quantity:
7
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Part Number:
A6275ELW
Manufacturer:
SANKEN
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Company:
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Part Number:
A6275ELW
Manufacturer:
ALLEGRO/雅丽高
Quantity:
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Part Number:
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Manufacturer:
FREESCAL
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Company:
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Part Number:
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Manufacturer:
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Part Number:
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Quantity:
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Part Number:
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Part Number:
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Company:
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Part Number:
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Manufacturer:
ALLEGRO/雅丽高
Quantity:
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Company:
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Part Number:
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Manufacturer:
ALLEGRO
Quantity:
19
GROUND
Caution: These CMOS devices have input
static protection (Class 2) but are still suscep-
tible to damage if exposed to extremely high
static electrical charges.
Note that the A6275EA (DIP) and the A6275ELW
(SOIC) are electrically identical and share a
common terminal number assignment.
ENABLE
DATA IN
Supply Voltage, V
Output Voltage Range,
Output Current, I
Ground Current, I
Input Voltage Range,
Package Power Dissipation,
Operating Temperature Range,
Storage Temperature Range,
SERIAL
CLOCK
LATCH
OUT
OUT
OUT
OUT
V
V
P
T
T
D
0
2
3
A
S
1
O
I
.................... -0.4 V to V
..................................... See Graph
............................. -40 C to +85 C
........................... -55 C to +150 C
............................ -0.5 V to +17 V
1
2
3
4
5
6
7
8
CK
L
REGISTER
LATCHES
O
GND
DD
........................ 90 mA
REGULATOR
...................... 7.0 V
................. 750 mA
I
O
V
OE
DD
DD
16
15
14
13
12
11
10
9
+ 0.4 V
Dwg. PP-029-10
LOGIC
SUPPLY
R
SERIAL
DATA OUT
OUTPUT
ENABLE
OUT
OUT
OUT
OUT
EXT
7
6
5
4
8-BIT SERIAL-INPUT, CONSTANT-
CURRENT LATCHED LED DRIVER
6275
display applications. Each BiCMOS device includes an 8-bit CMOS
shift register, accompanying data latches, and eight npn constant-
current sink drivers. Except for package style and allowable package
power dissipation, the two devices are identical.
microprocessor-based systems. With a 5 V logic supply, typical serial
data-input rates are up to 20 MHz. The LED drive current is deter-
mined by the user’s selection of a single resistor. A CMOS serial data
output permits cascade connections in applications requiring additional
drive lines. For inter-digit blanking, all output drivers can be disabled
with an ENABLE input high. Similar 150 mA output devices are
available as the A6277EA and A6277ELW; similar 16-bit devices
are available as the A6276EA and A6276ELW.
surface-mount SOIC (suffix LW). Under normal applications, copper
lead frames and low logic-power dissipation allow these devices to
sink maximum rated current through all outputs continuously over the
operating temperature range (90 mA, 0.9 V drop, +85 C). Both
devices are also available for operation over the standard temperature
range of -20 C to +85 C. To order, change the suffix letter ‘E’ to ‘S’.
Always order by complete part number, e.g., A6275EA .
The A6275EA and A6275ELW are specifically designed for LED-
The CMOS shift register and latches allow direct interfacing with
Two package styles are provided for through-hole DIP (suffix A) or
To 90 mA Constant-Current Outputs
Under-Voltage Lockout
Low-Power CMOS Logic and Latches
High Data Input Rate
Pin-Compatible with TB62705CP

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A6275 Summary of contents

Page 1

... order, change the suffix letter ‘E’ to ‘S’ Constant-Current Outputs Under-Voltage Lockout Low-Power CMOS Logic and Latches + 0.4 V High Data Input Rate Pin-Compatible with TB62705CP Always order by complete part number, e.g., A6275EA . ...

Page 2

... Dwg. GP-018B SERIAL-PARALLEL SHIFT REGISTER LATCHES OUT OUT 1 2 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 2000, 2001 Allegro MicroSystems, Inc LOGIC UVLO SUPPLY SERIAL DATA OUT OUTPUT ENABLE (ACTIVE LOW) MOS BIPOLAR ...

Page 3

IN IN www.allegromicro.com V DD Dwg. EP-010- Dwg. EP-010-13 6275 8-BIT SERIAL-INPUT, CONSTANT-CURRENT LATCHED LED DRIVER Dwg. EP-010- OUT Dwg. EP-063-6 ...

Page 4

SERIAL-INPUT, CONSTANT-CURRENT LATCHED LED DRIVER Typical Data and is for design information only. DD 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 ...

Page 5

SERIAL-INPUT, CONSTANT-CURRENT LATCHED LED DRIVER ...

Page 6

SERIAL-INPUT, CONSTANT-CURRENT LATCHED LED DRIVER CLOCK SERIAL DATA IN SERIAL DATA OUT LATCH ENABLE OUTPUT ENABLE OUT OUTPUT ENABLE OUT A. Data Active Time Before Clock Pulse (Data Set-Up Time), t .......................................... 60 ns su(D) B. Data Active ...

Page 7

DUTY CYCLE IN PER CENT 100 + ...

Page 8

SERIAL-INPUT, CONSTANT-CURRENT LATCHED LED DRIVER 100 + C DUTY CYCLE IN PER ...

Page 9

... DD The products described here are manufactured under one or more U.S. patents or U.S. patents pending. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the information being relied upon is current ...

Page 10

SERIAL-INPUT, CONSTANT-CURRENT LATCHED LED DRIVER The load current per bit ( set by the external resistor shown in the figure below. EXT 100 100 200 300 500 ...

Page 11

MAX 0.015 MIN 0.022 0.014 16 7.11 6.10 1 1.77 1.15 5.33 MAX 0.39 MIN 0.558 0.356 NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown. 2. Lead spacing ...

Page 12

SERIAL-INPUT, CONSTANT-CURRENT LATCHED LED DRIVER 16 0.2992 0.2914 0.020 1 0.013 0.0926 0.1043 0.0040 16 7.60 7.40 0.51 1 0.33 2.65 2.35 0.10 NOTES: 1. Exact body and lead configuration at vendor’s option within limits shown. 2. Lead ...

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