VI............................... -0.3 V to +7.0 V
Package Power Dissipation,
PD....................................... See Graph
Operating Temperature Range,
T
............................. -40°C to +125°C
A
Storage Temperature Range,
T
............................. -55°C to +150°C
S
*Each output, all outputs on.
† Pulse duration ≤ 100 µs, duty cycle ≤ 2%.
Caution: These CMOS devices have input static
protection (Class 3) but are still susceptible to
damage if exposed to extremely high static
electrical charges.
POWER
GROUND
19
CLEAR
1820DATA
OUT
17
OUT
16
OUT
15
14
OUT
ENABLE
13
S (MSB)
12
2
11
POWER
GROUND
Dwg. PP-050-2
7
6
5
4
8-BIT ADDRESSABLE
DMOS POWER DRIVER
The A6259KA and A6259KLW combine a 3-to-8 line CMOS
decoder and accompanying data latches, control circuitry, and DMOS
outputs in a multi-functional power driver capable of storing single-line
data in the addressable latches or use as a decoder or demuliplexer.
Driver applications include relays, solenoids, and other medium-current
or high-voltage peripheral power loads.
The CMOS inputs and latches allow direct interfacing with microprocessor-based systems. Use with TTL may require appropriate pullup resistors to ensure an input logic high. Four modes of operation are
selectable with the CLEAR and ENABLE inputs.
The addressed DMOS output inverts the DATA input with all
unaddressed outputs remaining in their previous states. All of the output
drivers are disabled (the DMOS sink drivers turned off) with the
CLEAR input low and the ENABLE input high. The A6259KA/KLW
DMOS open-drain outputs are capable of sinking up to 750 mA. Similar
devices with reduced r
The A6259KA is furnished in a 20-pin dual in-line plastic package.
The A6259KLW is furnished in a 20-lead wide-body, small-outline
plastic package (SOIC) with gull-wing leads for surface-mount applications. Copper lead frames, reduced supply current requirements, and
low on-state resistance allow both devices to sink 150 mA from all
outputs continuously, to ambient temperatures over 85°C.
FEATURES
■ 50 V Minimum Output Clamp Voltage
■ 250 mA Output Current (all outputs simultaneously)
■ 1.3 Ω Typical
■ Low Power Consumption
■ Replacements for TPIC6259N and TPIC6259DW
Always order by complete part number:
Part NumberPackageR
A6259KA20-pin DIP55°C/W25°C/W
A6259KLW20-lead SOIC70°C/W17°C/W
r
DS(on)
are available as the A6A259.
DS(on)
θJA
R
θJC
Page 2
6259
g
8-BIT ADDRESSABLE
DMOS POWER DRIVER
2.5
2.0
S
U
F
F
IX
'A
', R
θJA
=
θJA
5
5
°C/W
°C
/W
1.5
1.0
SUFFIX 'LW', R = 70
0.5
0
25
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
5075100125150
AMBIENT TEMPERATURE IN °C
V
DD
IN
Dwg. GS-004A
LOGIC SYMBOL
3
8
12
13
18
19
0
2
G8
Z9
Z10
9,0D
10,0R
9,1D
10,1R
9,2D
10,2R
9,3D
10,3R
9,4D
10,4R
9,5D
10,5R
9,6D
10,6R
9,7D
10,7R
8M 0/7
Dw
4
5
6
7
14
15
16
17
. FP-046
OUT
Dwg. EP-010-15
FUNCTION TABLE
Inputs
CLEAR ENABLE DATAOUTPUTOUTPUTsFunction
HLHLR
HLLHR
HHXRRMemory
LLHLH
LLLHH
LHXHHClear
L = Low Logic Level H = High Logic Level X = Irrelevant R = Previous State
Four modes of operation are selectable by controlling
the CLEAR and ENABLE inputs as shown above.
In the addressable-latch mode, data at the DATA input
t
PHL
90%
t
f
Dwg. WP-036
is written into the addressed transparent latch. The
addressed output inverts the data input with all other
outputs remaining in their previous states.
In the memory mode, all outputs remain in their
previous states and are unaffected by the DATA or
address (S
) inputs. To prevent entering erroneus data in
n
the latches, ENABLE should be held HIGH while the
address lines are changing.
In the demultiplexing/decoding mode, the addressed
t
h(D)
output inverts the data input and all other outputs are OFF.
In the clear mode, all outputs are OFF and are unaffected by the DATA or address (S
Dwg. WP-037
) inputs.
N
Given the appropriate inputs, when DATA is LOW
for a given address, the output is OFF; when DATA is
HIGH, the output is ON and can sink current.
NOTES:1. Exact body and lead configuration at vendor’s option within limits shown.
2. Lead spacing tolerance is non-cumulative.
www.allegromicro.com
1.27
0.40
Dwg. MA-008-20 mm
Page 10
6259
8-BIT ADDRESSABLE
DMOS POWER DRIVER
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.
Allegro products are not authorized for use as critical components
in life-support devices or systems without express written approval.
The information included herein is believed to be accurate and
reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use; nor for any infringement of patents or other rights of
third parties which may result from its use.