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A6276EA 반도체 회로 부품 판매점

16-BIT SERIAL-INPUT/ CONSTANTCURRENT LATCHED LED DRIVER



Allegro MicroSystems 로고
Allegro MicroSystems
A6276EA 데이터시트, 핀배열, 회로
6276
16-BIT SERIAL-INPUT, CONSTANT-
CURRENT LATCHED LED DRIVER
A6276ELW
GROUND 1
SERIAL
DATA IN 2
CLOCK 3 CK
LATCH 4
ENABLE
OUT 0 5
L
OUT 1 6
OUT2 7
OUT3 8
OUT 4 9
OUT5 10
OUT 6 11
OUT 7 12
VDD
24
LOGIC
SUPPLY
IO
REGULATOR
23 REXT
SERIAL
22 DATA OUT
REGISTER
LATCHES
OE 21 OUTPUT
ENABLE
20 OUT15
19 OUT14
18 OUT13
17 OUT12
16 OUT 11
15 OUT 10
14 OUT 9
13 OUT8
Dwg. PP-029-11
Note that the A6276EA (DIP) and the A6276ELW
(SOIC) are electrically identical and share a
common terminal number assignment.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VDD ...................... 7.0 V
Output Voltage Range,
VO ............................ -0.5 V to +17 V
Output Current, IO ........................ 90 mA
Ground Current, IGND ............... 1475 mA
Input Voltage Range,
VI .................... -0.4 V to VDD + 0.4 V
Package Power Dissipation,
PD ..................................... See Graph
Operating Temperature Range,
TA ............................. -40°C to +85°C
Storage Temperature Range,
TS ........................... -55°C to +150°C
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.
The A6276EA and A6276ELW are specifically designed for LED-
display applications. Each BiCMOS device includes a 16-bit CMOS
shift register, accompanying data latches, and 16 npn constant-current
sink drivers. Except for package style and allowable package power
dissipation, the two devices are identical.
The CMOS shift register and latches allow direct interfacing with
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 8-bit devices are available as the
A6275EA and A6275ELW.
Two package styles are provided for through-hole DIP (suffix A) or
surface-mount SOIC (suffix LW). Under normal applications, a copper
lead frame and low logic-power dissipation allow the dual in-line
package to sink maximum rated current through all outputs continu-
ously over the operating temperature range (90 mA, 0.75 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’.
FEATURES
s To 90 mA Constant-Current Outputs
s Under-Voltage Lockout
s Low-Power CMOS Logic and Latches
s High Data Input Rate
s Functional Replacement for TB62706BN/BF
Always order by complete part number, e.g., A6276EA .


A6276EA 데이터시트, 핀배열, 회로
6276
16-BIT SERIAL-INPUT,
CONSTANT-CURRENT
LATCHED LED DRIVER
2.5
24-PIN DIP, RθJA = 50°C/W
2.0 24-LEAD SOIC, RθJA = 75°C/W
1.5
1.0
0.5
0
25
50 75 100 125
AMBIENT TEMPERATURE IN °C
150
Dwg. GP-022-3
CLOCK
SERIAL
DATA IN
LATCH
ENABLE
GROUND
FUNCTIONAL BLOCK DIAGRAM
SERIAL-PARALLEL SHIFT REGISTER
LATCHES
UVLO
VDD
LOGIC
SUPPLY
SERIAL
DATA OUT
MOS
BIPOLAR
OUTPUT ENABLE
(ACTIVE LOW)
OUT 0 OUT 1 OUT 2
IO
REGULATOR
OUT N
R EXT
Dwg. FP-013-3
2
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2000, 2001 Allegro MicroSystems, Inc.




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A6276EA led

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관련 데이터시트


A6276EA

16-BIT SERIAL-INPUT/ CONSTANTCURRENT LATCHED LED DRIVER - Allegro MicroSystems



A6276ELW

16-BIT SERIAL-INPUT/ CONSTANTCURRENT LATCHED LED DRIVER - Allegro MicroSystems



A6276ELW

16-BIT SERIAL-INPUT/ CONSTANT CURRENT LATCHED LED DRIVER - Allegro MicroSystems