MAX366CSA+ Maxim Integrated Products, MAX366CSA+ Datasheet

IC CIRC PROT SIGNAL-LINE 8-SOIC

MAX366CSA+

Manufacturer Part Number
MAX366CSA+
Description
IC CIRC PROT SIGNAL-LINE 8-SOIC
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX366CSA+

Voltage - Clamping
±40V
Technology
Mixed Technology
Power (watts)
471mW
Number Of Circuits
3
Applications
General Purpose
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Working
-
The MAX366 and MAX367 are multiple, two-terminal circuit
protectors. Placed in series with signal lines, each two-ter-
minal device guards sensitive circuit components against
voltages near and beyond the normal supply voltages.
These devices are used at interfaces where sensitive cir-
cuits are connected to the external world and could
encounter damaging voltages (up to 35V beyond the sup-
ply rails) during power-up, power-down, or fault conditions.
The MAX366 contains three independent protectors and
the MAX367 contains eight. They can protect analog sig-
nals using either unipolar (4.5V to 36V) or bipolar (±2.25V
to ±18V) power supplies. Each protector is symmetrical.
Input and output terminals may be freely interchanged.
These devices are voltage-sensitive MOSFET transistor
arrays that are normally on when power is applied and
normally open circuit when power is off. With ±10V sup-
plies, on-resistance is 100Ω max and leakage is less than
1nA at +25°C.
When signal voltages exceed or are within approximately
1.5V of either power-supply voltage (including when
power is off), the two-terminal resistance increases dra-
matically, limiting fault current as well as output voltage to
sensitive circuits. The protected side of the switch main-
tains the correct polarity and clamps approximately 1.5V
below the supply rail. There are no “glitches” or polarity
reversals going into or coming out of a fault condition.
Process Control Systems
Hot-Insertion Boards/Systems ATE Equipment
Data-Acquisition Systems
________________________Applications
19-0326; Rev 0; 12/94
Call toll free 1-800-998-8800 for free samples or literature.
___________________________________________________Typical Operating Circuit
_______________General Description
REMOTE SENSOR
________________________________________________________________ Maxim Integrated Products
Redundant/Backup Systems
Sensitive Instruments
+10V REG.
FAULT!
FAULT!
Signal-Line Circuit Protectors
(OPEN)
(SHORT)
ELECTRONICS
____________________________Features
† MAX367 available after January 1, 1995.
* Dice are tested at T
* Contact factory for availability.
Pin Configurations appear at end of data sheet.
+28V
______________Ordering Information
MAX366CPA
MAX366CSA
MAX366C/D
MAX366EPA
MAX366ESA
MAX366MJA
MAX367CPN
MAX367CWN
MAX367C/D
MAX367EPN
MAX367EWN
MAX367MJN
±40V Overvoltage Protection
Open Signal Paths with Power Off
100Ω Signal Paths with Power On
1nA Max Path Leakage at +25°C
44V Maximum Supply Voltage Rating
Automatic Protection; No Programming or
Controls
1
2
3
4
PART †
IN1
IN2
IN3
V-
PROTECTOR
MAX366
A
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
TEMP. RANGE
= +25°C only.
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
OUT1
OUT2
OUT3
V+
7
6
5
8
AMPLIFIER
SENSITIVE
PIN-PACKAGE
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
8 CERDIP**
18 Plastic DIP
18 Wide SO
Dice*
18 Plastic DIP
18 Wide SO
18 CERDIP**
+12V
1

Related parts for MAX366CSA+

MAX366CSA+ Summary of contents

Page 1

... Sensitive Instruments ___________________________________________________Typical Operating Circuit FAULT! REMOTE SENSOR +10V REG. FAULT! ________________________________________________________________ Maxim Integrated Products Call toll free 1-800-998-8800 for free samples or literature. Signal-Line Circuit Protectors ____________________________Features ±40V Overvoltage Protection Open Signal Paths with Power Off 100Ω Signal Paths with Power On 1nA Max Path Leakage at +25° ...

Page 2

Signal-Line Circuit Protectors ABSOLUTE MAXIMUM RATINGS V+ to V-......................................................................-0.3V, +44V IN_, OUT_ ..................................................(V- + 44V), (V+ - 44V) Continuous Current into Any Terminal..............................±30mA Peak Current into Any Terminal (pulsed at 1ms, 10% duty cycle)...................................±70mA Continuous Power Dissipation (T = +70°C) ...

Page 3

Operating Characteristics (V+ = +15V -15V +25°C, unless otherwise noted.) A TRANSFER CHARACTERISTICS (BIPOLAR SUPPLIES +15V -15V V+ = +10V -10V +3V -3V ...

Page 4

Signal-Line Circuit Protectors ____________________________Typical Operating Characteristics (continued) (V+ = +15V -15V +25°C, unless otherwise noted.) A PATH RESISTANCE vs. INPUT VOLTAGE (SINGLE SUPPLY 25V 100M 10M V+ = 10V 1M 100k V+ = ...

Page 5

Description PIN MAX366 MAX367 – 4– – 10– 15, 16 Inputs and outputs are names for convenience only; inputs and outputs are identical and ...

Page 6

Signal-Line Circuit Protectors As long as the signal is within these limits, all three tran- sistors conduct and a low-resistance path is maintained from the IN to OUT pin. (Note that, since the device is symmetrical, IN and OUT pins ...

Page 7

The current through each protector should never exceed 30mA. Always calculate the power dissipated by all the protectors in worst-case conditions (maximum voltage and current through each protector) to ensure the pack- age dissipation limit is not reached. With single-supply ...

Page 8

Signal-Line Circuit Protectors The MAX366/MAX367 V+ and V- pins are normally con- nected to a circuit’s most positive and most negative power supplies. When a circuit has multiple power supplies (such as ±5V and ±12V) and the MAX366/ MAX367 V+ ...

Page 9

MAX366 V+ 100k 1 IN1 OUT1 7 2 IN2 OUT2 6 3 IN3 OUT3 Figure 5. Power-Supply Sequencing Figure 6 shows a circuit that can give reliable results. This circuit uses a 100mV voltage source and ...

Page 10

Signal-Line Circuit Protectors __High-Voltage Surge Suppression These devices are not high-voltage arresters, nor are they substitutes for surge suppressers. In systems that use these forms of protection, however, the MAX366/MAX367 can fill a vital gap. Figure 7 shows a typical ...

Page 11

Information ______________________________________________________________________________________ Signal-Line Circuit Protectors 0° - 15° Plastic DIP PLASTIC DUAL-IN-LINE PACKAGE (0.300 in.) 0°-8° 0.101mm ...

Page 12

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 12 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 1994 Maxim Integrated Products 0° ...

Related keywords