MAX4505EUK+T Maxim Integrated Products, MAX4505EUK+T Datasheet

IC SIGNAL LINE PROTECTOR SOT23-5

MAX4505EUK+T

Manufacturer Part Number
MAX4505EUK+T
Description
IC SIGNAL LINE PROTECTOR SOT23-5
Manufacturer
Maxim Integrated Products
Type
Overvoltage protectionr
Datasheet

Specifications of MAX4505EUK+T

Applications
Control systems
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Power (watts)
571mW
Number Of Circuits
1
Voltage - Working
±40V
Technology
Mixed Technology
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Clamping
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
MAX4505EUK+T
MAX4505EUK+TTR
The MAX4505 is a single signal-line protector featuring a
fault-protected input and Rail-to-Rail
capability. The input is protected from overvoltage faults
up to ±36V with power on or ±40V with power off. During
a fault condition, the input terminal becomes an open cir-
cuit and only nanoamperes of leakage current flow from
the source, while the switch output (AOUT) furnishes typ-
ically 19mA from the appropriate polarity supply to the
load. This ensures an unambiguous rail-to-rail output
when a fault begins and ends.
The MAX4505 protects both unipolar and bipolar analog
signals using either unipolar (+9V to +36V) or bipolar
(±8V to ±18V) power supplies. The device has no logic
control inputs; the protector is always on when the sup-
plies are on. On-resistance is 100Ω max, and on-leakage
is less than 0.5nA at T
able in 5-pin SOT23 and 8-pin µMAX packages.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
19-1514; Rev 0; 7/99
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Process Control Systems
Hot-Insertion Boards/Systems
Data-Acquisition Systems
Redundant/Backup Systems
ATE Equipment
Sensitive Instruments
IN
V-
V-
AIN
Typical Operating Circuit
________________________________________________________________ Maxim Integrated Products
A
MAX4505
General Description
= +25°C. The MAX4505 is avail-
V-
SENSOR
RAIL
V+
AOUT
Applications
V+
®
signal handling
Fault-Protected, High-Voltage,
OUT
V+
R
OUT
Pin Configurations continued at end of data sheet.
MAX4505EUK-T
MAX4505EUA
Overvoltage Protection
Open Signal Paths with Power Off
Output Clamps to Either Rail with an Input
Overvoltage
100Ω max On-Resistance
10ns Overvoltage Turn-On Delay
No Latchup During Power Sequencing
Rail-to-Rail Signal Handling
500Ω Output Clamp Resistance During
Overvoltage
Tiny 5-Pin SOT23 Package
TOP VIEW
Signal-Line Protector
±40V with Power Off
±36V with Power On
PART
AOUT
AIN
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
V+
1
2
3
Ordering Information
SOT23-5
Pin Configurations
MAX4505
5 SOT23-5
8 µMAX
PACKAGE
4
5
PIN-
V-
N.C.
Features
ADLW
MARK
TOP
1

Related parts for MAX4505EUK+T

MAX4505EUK+T Summary of contents

Page 1

... MAX4505 V- V+ RAIL SENSOR IN AIN Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd. ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. Fault-Protected, High-Voltage, Signal-Line Protector Overvoltage Protection ® signal handling ± ...

Page 2

Fault-Protected, High-Voltage, Signal-Line Protector ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND) V+ ........................................................................-0.3V to +44.0V V- .........................................................................-44.0V to +0. V-................................................................-0.3V to +44.0V AIN, AOUT (Notes 1, 2) .......................................................±44V AIN Overvoltage with Power On ..........................................±36V AIN Overvoltage with Power ...

Page 3

ELECTRICAL CHARACTERISTICS—Dual Supplies (continued) (V+ = +15V -15V MIN MAX PARAMETER SYMBOL ±Fault Recovery Time POWER SUPPLY Power-Supply Range V+, V- Power-Supply Current ELECTRICAL CHARACTERISTICS—Single Supply (V+ = +12V ...

Page 4

Fault-Protected, High-Voltage, Signal-Line Protector (T = +25°C, unless otherwise noted.) A ON-RESISTANCE vs. OUTPUT VOLTAGE (DUAL SUPPLIES) 140 +10V 120 -10V 100 V+ = +15V V- = -15V 80 60 ...

Page 5

A FAULT-FREE OUTPUT LEAKAGE CURRENT (SUPPLIES ON) 100n V = ±10V OUT 10n I (V+ = +15V -15V) OUT 1n 100p I (V+ = +12V OUT 10p 1p 0.1p ...

Page 6

Fault-Protected, High-Voltage, Signal-Line Protector PIN NAME SOT µMAX AOUT -15V COMPARATOR N-CHANNEL DRIVER -15V N3 SENSE SWITCH SENSE SWITCH P-CHANNEL +15V DRIVER COMPARATOR ...

Page 7

MAX4505 AIN AOUT V IN Figure 2. Application Circuit + + - +15V 4 NO1 5 NO2 2 7 MAX4505 6 NO3 +25V NO4 -15V ...

Page 8

... 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. 8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 1999 Maxim Integrated Products ...

Related keywords