Allegro A6A595KLB, A6A595KA Datasheet
6A595
Data Sheet
26185.121
ADVANCE INFORMATION
(Subject to change without notice)
March 22, 2000
A6A595KA (DIP)
OUT
2
1
3
OUT
REGISTER
CLEAR
OUTPUT
ENABLE
POWER
GROUND
POWER
GROUND
STROBE
CLOCK
OUT
OUT
2
3
4
5
6
7
8
4
9
10
5
CLR
OE
ST
CLK
LATCHES
REGISTER
REGISTER
LATCHES
V
DD
ABSOLUTE MAXIMUM RATINGS
at TA = 25°C
Output Voltage, VO............................... 50 V
Output Drain Current,
Continuous, IO.......................... 350 mA*
Peak, IOM................................. 1100 mA†
Single-Pulse Avalanche Energy,
EAS................................................. 75 mJ
Logic Supply Voltage, VDD.................. 7.0 V
Input Voltage Range,
VI................................... -0.3 V to +7.0 V
Package Power Dissipation,
PD........................................... See Graph
Operating Temperature Range,
TA................................. -40°C to +125°C
Storage Temperature Range,
TS................................. -55°C to +150°C
* 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.
20
19
18
17
16
15
14
13
12
11
OUT
1
OUT
0
SERIAL
DATA IN
LOGIC
SUPPLY
POWER
GROUND
POWER
GROUND
LOGIC
GROUND
SERIAL
DATA OUT
OUT
7
OUT
6
Dwg. PP-029-15
8-BIT SERIAL-INPUT,
DMOS POWER DRIVER
The A6A595KA and A6A595KLB combine an 8-bit CMOS shift
register and accompanying data latches, control circuitry, and DMOS
power driver outputs. Power driver applications include relays, solenoids, and other medium-current or high-voltage peripheral power
loads.
The serial-data input, CMOS shift register and latches allow direct
interfacing with microprocessor-based systems. Serial-data input rates
are over 5 MHz. Use with TTL may require appropriate pull-up
resistors to ensure an input logic high.
A CMOS serial-data output enables cascade connections in applications requiring additional drive lines.
The A6A595 DMOS open-drain outputs are capable of sinking up
to 500 mA. All of the output drivers are disabled (the DMOS sink
drivers turned off) by the OUTPUT ENABLE input high.
The A6A595KA is furnished in a 20-pin dual in-line plastic
package. The A6A595KLB is furnished in a 24-lead wide-body, smalloutline plastic batwing package (SOIC) with gull-wing leads. 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
■ 350 mA Output Current (all outputs simultaneously)
■ 1 Ω Typical
■ Internal Short-Circuit Protection
■ Low Power Consumption
■ Replacements for TPIC6A595N and TPIC6A595DW
Always order by complete part number:
Part Number Package R
A6A595KA 20-pin DIP 55°C/W 25°C/W —
A6A595KLB 24-lead SOIC 55°C/W — 6°C/W
r
DS(on)
θJA
R
θJC
R
θJT
6A595
8-BIT SERIAL-INPUT,
DMOS POWER DRIVER
A6A595KLB (SOIC)
5
SUFFIX 'LB', R = 6.0°C/W
θJT
4
3
SUFFIX 'A', R = 25°C/W
θJC
2
1
R = 55°C/W
θJA
0
25
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
50 75 100 125 150
TEMPERATURE IN °C
Dwg. GP-049-5
FUNCTIONAL BLOCK DIAGRAM
REGISTER
CLEAR
(ACTIVE LOW)
CLOCK
OUT
OUT
REGISTER
CLEAR
OUTPUT
ENABLE
POWER
GROUND
POWER
GROUND
POWER
GROUND
POWER
GROUND
STROBE
CLOCK
OUT
OUT
1
2
2
3
3
4
5
6
7
817
9
10
11
4
12
5
CLR
OE
ST
CLK
LATCHES
REGISTER
REGISTER
LATCHES
V
DD
24
OUT
1
23
OUT
0
SERIAL
22
DATA IN
LOGIC
21
V
DD
SUPPLY
POWER
20
GROUND
POWER
19
GROUND
POWER
18
GROUND
POWER
GROUND
LOGIC
16
GROUND
SERIAL
15
DATA OUT
14
OUT
13
OUT
Dwg. PP-029-16A
7
6
LOGIC
SUPPLY
SERIAL
DATA IN
STROBE
OUTPUT
ENABLE
(ACTIVE LOW)
LOGIC
GROUND
POWER
GROUND
SERIAL-PARALLEL SHIFT REGISTER
D-TYPE LATCHES
SUB
CURRENT LIMIT AND CHARGE PUMP
OUT
0
Power grounds must be connected together externally.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 2000, Allegro MicroSystems, Inc.
OUT
SERIAL
DATA OUT
POWER
GROUND
N
Dwg. FP-013-6
6A595
8-BIT SERIAL-INPUT,
DMOS POWER DRIVER
V
DD
IN
Dwg. EP-010-10
LOGIC INPUTS
RECOMMENDED OPERATING CONDITIONS
over operating temperature range
Logic Supply Voltage Range, VDD............... 4.5 V to 5.5 V
High-Level Input Voltage, VIH............................ ≥ 0.85V
Low-level input voltage, VIL................................. ≤0.15V
DD
DD
OUT
Dwg. EP-063-5
DMOS POWER DRIVER OUTPUT
V
DD
OUT
Dwg. EP-063-4
SERIAL DATA OUT
TRUTH TABLE
Shift Register Contents Serial Latch Contents Output Contents
Data Clock Data Output
Input Input I0I1I
HHR
LLR
XR
0R1
0R1
0R1R2
XXX … XX X — R0R1R2…R6R
P0P1P2…P6P
L = Low Logic Level H = High Logic Level X = Irrelevant P = Present State R = Previous State
www.allegromicro.com
... I6I7Output Strobe I0I1I2... I6I7Enable I0I1I2…I6I
2
…R5R
…R5R
…R6R
R
6
6
R
6
6
R
7
7
7
P
7
7
P0P1P2…P6P
LP0P1P2…P6P
7
XXX … XX H HHH …HH
7
7
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