a6595 Allegro MicroSystems, Inc., a6595 Datasheet

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a6595

Manufacturer Part Number
a6595
Description
8-bit Serial Input Dmos Power Driver
Manufacturer
Allegro MicroSystems, Inc.
Datasheet
Features and Benefits
▪ Low power consumption
▪ Replacements for TPIC6595N and TPIC6595DW
Package: 20-pin DIP (suffix A)
Not to scale
26185.120a
50 V minimum output clamp voltage
250 mA output current (all outputs simultaneously)
1.3 Ω typical
r
DS(on)
REGISTER
GROUND
GROUND
OUTPUT
SUPPLY
ENABLE
DATA IN
POWER
POWER
SERIAL
CLEAR
LOGIC
OUT
OUT
OUT
OUT
8-Bit Serial Input DMOS Power Driver
0
2
3
1
10
1
2
3
4
5
6
7
8
9
Pin-out Diagram
CLR
V
OE
DD
Description
The A6595 combines 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 A6595 DMOS open-drain outputs are capable of sinking
up to 750 mA. All of the output drivers are disabled (the
DMOS sink drivers turned off) by the OUTPUT ENABLE
input high.
The A6595 is furnished in a 20-pin dual in-line plastic package
that is lead (Pb) free, with 100% matte tin leadframe plating.
Copper leadframe base material, reduced supply current
requirements, and low on-state resistance allow the device
to sink 150 mA from all outputs continuously, to ambient
temperatures to 125°C.
CLK
ST
20
19
18
17
16
15
14
13
12
11
CLOCK
POWER
GROUND
SERIAL
DATA OUT
OUT
OUT
OUT
OUT
STROBE
LOGIC
GROUND
POWER
GROUND
7
6
5
4
A6595

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a6595 Summary of contents

Page 1

... All of the output drivers are disabled (the DMOS sink drivers turned off) by the OUTPUT ENABLE input high. The A6595 is furnished in a 20-pin dual in-line plastic package that is lead (Pb) free, with 100% matte tin leadframe plating. Copper leadframe base material, reduced supply current ...

Page 2

... A6595 Selection Guide Part Number A6595KA-T 18 pieces per tube Absolute Maximum Ratings* Characteristic Logic Supply Voltage Input Voltage Range Output Voltage Output Drain Current Single-Pulse Avalanche Energy Operating Ambient Temperature Maximum Junction Temperature Storage Temperature *These CMOS devices have input static protection (Class 3) but are still susceptible to damage if exposed to extremely high static electrical charges ...

Page 3

... A6595 REGISTER CLEAR (ACTIVE LOW) CLOCK SERIAL DATA IN STROBE OUTPUT ENABLE (ACTIVE LOW) LOGIC GROUND POWER GROUND Grounds (terminals 1, 10, 11, 19, and 20) must be connected together externally. 8-Bit Serial Input DMOS Power Driver Functional Block Diagram SERIAL-PARALLEL SHIFT REGISTER D-TYPE LATCHES OUT ...

Page 4

... A6595 IN Dwg. EP-010-1 5 LOGIC INPUTS RECOMMENDED OPERATING CONDITIONS over operating temperature range Logic Supply Voltage Range ............................ ≥ 0.85V High-Level Input Voltage ................................. ≤0.15V Low-level input voltage ...

Page 5

... A6595 ELECTRICAL CHARACTERISTICS at T specified Output Breakdown V (BR)DSX Voltage Off-State Output I DSX Current r Static Drain-Source DS(on) On-State Resistance Nominal Output I ON Current Logic Input Current Logic Input Hysteresis V I(hys) SERIAL-DATA ...

Page 6

... A6595 TIMING REQUIREMENTS and SPECIFICATIONS CLOCK SERIAL DATA I N SERIAL DATA OU T STROB E OUTPUT ENABLE OU T OUTPUT ENABLE Data Active Time Before Clock Pulse (Data Set-Up Time), t .......................................... 10 ns su(D) B. Data Active Time After Clock Pulse (Data Hold Time), t .............................................. 10 ns h(D) C. Clock Pulse Width, t ...

Page 7

... A6595 INPUT 1 (BR) O(ON (BR)DSX Single-Pulse Avalanche Energy Test Circuit and Waveforms 8-Bit Serial Input DMOS Power Driver TEST CIRCUITS +15 V DUT OU T Dwg. EP-066 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. ...

Page 8

... A6595 Terminal No. Terminal Name 1 POWER GROUND 2 LOGIC SUPPLY 3 SERIAL DATA IN 4-7 OUT 0-3 8 CLEAR 9 OUTPUT ENABLE 10 POWER GROUND 11 POWER GROUND 12 STROBE 13 CLOCK 14-17 OUT 4-7 18 SERIAL DATA OUT 19 LOGIC GROUND 20 POWER GROUND NOTE — Grounds (terminals 1, 10, 11, 19, and 20) must be connected together externally. 8-Bit Serial Input DMOS Power Driver ...

Page 9

... A6595 +0.25 1.52 –0.38 Preliminary dimensions, for reference only Dimensions in inches Metric dimensions (mm) in brackets, for reference only (reference JEDEC MS-001 AD) Dimensions exclusive of mold flash, gate burrs, and dambar protrusions Exact case and lead configuration at supplier discretion within limits shown A Terminal #1 mark area Copyright © ...

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