Data Sheet
26186.122
8-BIT ADDRESSABLE
DMOS POWER DRIVER
The A6B259KA and A6B259KLW 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 micro-
processor-based systems. Use with TTL may require appropriate pull-
up resistors to ensure an input logic high. Four modes of operation are
selectable with the CLEAR and ENABLE inputs.
The A6B259KA/KLW DMOS open-drain outputs are capable of
sinking up to 500 mA. Similar devices with reduced r
DS(on)
are avail-
able as the A6259KA/KLW.
The A6B259KA is furnished in a 20-pin dual in-line plastic
package. The A6B259KLW 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 either device to sink
150 mA from all outputs continuously, to ambient temperatures greater
than 85
C.
FEATURES
s 50 V Minimum Output Clamp Voltage
s 150 mA Output Current (all outputs simultaneously)
s 5
Typical
r
DS(on)
s Low Power Consumption
s Replacements for TPIC6B259N and TPIC6B259DW
6B259
ADVANCE INFORMATION
(Subject to change without notice)
January 24, 2000
Always order by complete part number:
Part Number
Package
R
JA
R
JC
A6B259KA
20-pin DIP
55
C/W
25
C/W
A6B259KLW
20-lead SOIC
70
C/W
17
C/W
LOGIC
GROUND
1
2
3
8
9
13
14
15
16
17
19
4
5
6
7
12
18
20
DATA
S (LSB)
LOGIC
SUPPLY
V
DD
POWER
GROUND
CLEAR
OUT
7
OUT
6
OUT
5
Dwg. PP-050-1
OUT
0
OUT
1
OUT
2
OUT
3
OUT
4
10
11
NO (INTERNAL)
CONNECTION
NO (INTERNAL)
CONNECTION
NC
NC
ENABLE
EN
POWER
GROUND
LATCHES
DECODER LOGIC
LATCHES
0
S
1
S (MSB)
2
Note that the A6B259KA (DIP) and the A6B259KLW
(SOIC) are electrically identical and share a common
terminal number assignment.
ABSOLUTE MAXIMUM RATINGS
at T
A
= 25
C
Output Voltage, V
O
............................... 50 V
Output Drain Current,
Continuous, I
O
.......................... 150 mA*
Peak, I
OM
................................... 500 mA
Single-Pulse Avalanche Energy,
E
AS
................................................. 30 mJ
Logic Supply Voltage, V
DD
.................. 7.0 V
Input Voltage Range,
V
I
................................... -0.3 V to +7.0 V
Package Power Dissipation,
P
D
........................................... See Graph
Operating Temperature Range,
T
A
................................. -40
C to +125
C
Storage Temperature Range,
T
S
................................. -55
C to +150
C
* Each output, all outputs on.
Pulse duration
100
s, 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.
6B259
8-BIT ADDRESSABLE
DMOS POWER DRIVER
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
W
Copyright 2000, Allegro MicroSystems, Inc.
FUNCTION TABLE
Inputs
Addressed
Other
CLEAR ENABLE DATA
OUTPUT
OUTPUTs
Function
H
L
H
L
R
Addressable
H
L
L
H
R
Latch
H
H
X
R
R
Memory
L
L
H
L
H
8-Line
L
L
L
H
H
Demultiplexer
L
H
X
H
H
Clear
L = Low Logic Level H = High Logic Level X = Irrelevant R = Previous State
LATCH SELECTION TABLE
Select Inputs
Addressed
S
2
(
MSB
) S
1
S
0
(
LSB
)
OUTPUT
L
L
L
0
L
L
H
1
L
H
L
2
L
H
H
3
H
L
L
4
H
L
H
5
H
H
L
6
H
H
H
7
LOGIC SYMBOL
G8
Z9
9,0D
10,0R
4
5
6
7
14
15
16
17
8
12
18
13
Dwg. FP-046
0
2
3
19
Z10
8M 0/7
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
50
75
100
125
150
2.5
0.5
0
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
AMBIENT TEMPERATURE IN
C
2.0
1.5
1.0
25
Dwg. GS-004A
SUFFIX 'LW
', R = 70
C/W
JA
SUFFIX 'A', R = 55
C/W
JA
DMOS POWER DRIVER OUTPUT
LOGIC INPUTS
IN
Dwg. EP-010-15
V
DD
Dwg. EP-063
OUT
6B259
8-BIT ADDRESSABLE
DMOS POWER DRIVER
www.allegromicro.com
Grounds (terminals 9, 10, and 11) must be connected externally to a single point.
GROUND
Dwg. FP-047
DATA
CLEAR
(ACTIVE LOW)
ENABLE
(ACTIVE LOW)
V
DD
LOGIC
SUPPLY
OUT
0
D
C1
CLR
OUT
1
D
C1
CLR
OUT
2
D
C1
CLR
OUT
3
D
C1
CLR
OUT
4
D
C1
CLR
OUT
5
D
C1
CLR
OUT
6
D
C1
CLR
OUT
7
D
C1
CLR
2
S
(MSB)
1
S
0
S
(LSB)
FUNCTIONAL BLOCK DIAGRAM
6B259
8-BIT ADDRESSABLE
DMOS POWER DRIVER
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Logic Supply Voltage
V
DD
Operating
4.5
5.0
5.5
V
Output Breakdown
V
(BR)DSX
I
O
= 1 mA
50
--
--
V
Voltage
Off-State Output
I
DSX
V
O
= 40 V, V
DD
= 5.5 V
--
0.1
5.0
A
Current
V
O
= 40 V, V
DD
= 5.5 V, T
A
= 125
C
--
0.15
8.0
A
Static Drain-Source
r
DS(on)
I
O
= 100 mA, V
DD
= 4.5 V
--
4.2
5.7
On-State Resistance
I
O
= 100 mA, V
DD
= 4.5 V, T
A
= 125
C
--
6.8
9.5
I
O
= 350 mA, V
DD
= 4.5 V (see note)
--
5.5
8.0
Nominal Output
I
ON
V
DS(on)
= 0.5 V, T
A
= 85
C
--
90
--
mA
Current
Logic Input Current
I
IH
V
I
= V
DD
= 5.5 V
--
--
1.0
A
I
IL
V
I
= 0, V
DD
= 5.5 V
--
--
-1.0
A
Prop. Delay Time
t
PLH
I
O
= 100 mA, C
L
= 30 pF
--
150
--
ns
t
PHL
I
O
= 100 mA, C
L
= 30 pF
--
90
--
ns
Output Rise Time
t
r
I
O
= 100 mA, C
L
= 30 pF
--
200
--
ns
Output Fall Time
t
f
I
O
= 100 mA, C
L
= 30 pF
--
200
--
ns
Supply Current
I
DD(OFF)
V
DD
= 5.5 V, Outputs off
--
20
100
A
I
DD(ON)
V
DD
= 5.5 V, Outputs on
--
150
300
A
Typical Data is at V
DD
= 5 V and is for design information only.
NOTE -- Pulse test, duration
100
s, duty cycle
2%.
ELECTRICAL CHARACTERISTICS at T
A
= +25
C, V
DD
= 5 V, t
ir
= t
if
10 ns (unless otherwise
specified).
RECOMMENDED OPERATING CONDITIONS
over operating temperature range
Logic Supply Voltage Range, V
DD
............... 4.5 V to 5.5 V
High-Level Input Voltage, V
IH
............................
0.85V
DD
Low-level input voltage, V
IL
.................................
0.15V
DD
6B259
8-BIT ADDRESSABLE
DMOS POWER DRIVER
www.allegromicro.com
FUNCTIONAL DESCRIPTION and INPUT REQUIREMENTS
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
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
n
) inputs. To prevent entering erroneus data in
the latches, ENABLE should be held HIGH while the
address lines are changing.
In the demultiplexing/decoding mode, the addressed
output inverts the data input and all other outputs are OFF.
In the clear mode, all outputs are OFF and are unaf-
fected by the DATA or address (S
N
) inputs.
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.
DATA INPUT REQUIREMENTS
Data Active Time Before Enable
(Data Set-Up Time), t
su(D)
.............................................. 20 ns
Data Active Time After Enable
(Data Hold Time), t
h(D)
................................................... 20 ns
Data Pulse Width, t
w(D)
....................................................... 40 ns
Input Logic High, V
IH
................................................
0.85V
CC
Input Logic Low, V
IL
.................................................
0.15V
CC
50%
Dwg. WP-037
ENABLE
DATA
50%
w(D)
t
su(D)
t
h(D)
t
PHL
t
PLH
t
50%
ADDRESSED
OUTPUT
Dwg. WP-036
10%
90%
f
t
r
t
ENABLE
DATA
OUTPUT SWITCHING TIME
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