OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LIA136STR

P1-P3P4-P6P7-P9P10-P12P13-P13
I
NTEGRATED
C
IRCUITS
D
IVISION
DS-LIA135 / LIA136-R01 www.ixysic.com 1
LIA135 / LIA136
Low Voltage Optically Isolated
Error Amplifiers
Features
• Low Input Voltage of 1.6V over temperature
• Precision reference, error amplifier, and optocoupler
in a single package
• Voltage Reference: 1.299V ±0.5% @ 25°C
LIA135: ±1% @ -40°C to +85°C
LIA136: ±1.5% @ -40°C to +110°C
• LIA136: Reduced dark current at high temperature
• Common Mode Transient Immunity:
LIA135: 5V/ns
LIA136: 20V/ns
• Simplified frequency compensation
• CTR 500% to 2000%
• Lowest optical offset current (I
CE
vs. V
LED
)
Applications
• Low Voltage Power Supply Feedback
• Isolated Power Supply Feedback
• AC-to DC Power Supplies
• DC-to-DC Converters
Description
The LIA135 and LIA136 are low voltage optically
isolated error amplifiers with a precision
programmable shunt reference combined into a single
package capable of operating down to 1.6V. The
optocoupler portion of the LIA135 / LIA136 comprises
an infrared LED that is optically coupled to an NPN
phototransistor providing a current transfer ratio from
500% to 2000%. Ensuring low voltage performance,
the input voltage range of 1.6V to 10V is guaranteed
over the operational temperature range.
The combination of features in the LIA135 / LIA136
are optimal for use in isolated AC-to-DC power
supplies and DC-to-DC converters. The bias current
for the shunt regulator does not pass through the LED,
which eliminates bias-related optical current, giving
the user the industry’s largest dynamic range (1000:1).
These devices are available in DIP and surface mount
(SMT) packages.
Approvals
• UL Recognized Component: File # E76270
• CSA Certified Component: Certificate # 1305490
Ordering Information
LIA135 and LIA136 Block Diagrams
Part Description
LIA135 8-pin DIP, Tube (50/Tube)
LIA135S 8-pin Surface Mount, Tube (50/Tube)
LIA135STR 8-pin Surface Mount, Tape & Reel (1000/Reel)
LIA136 8-pin DIP, Tube (50/Tube)
LIA136S 8-pin Surface Mount, Tube (50/Tube)
LIA136STR 8-pin Surface Mount, Tape & Reel (1000/Reel)
LIA135
+
_
+
_
GND
COMP
LED
FB
C
E
LIA136
+
_
+
_
GND
COMP
LED
FB
C
E
B
I
NTEGRATED
C
IRCUITS
D
IVISION
LIA135 / LIA136
2 www.ixysic.com R01
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Package Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.5 Test Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.6 Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Input Side Biasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Supply Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Optocoupler Output Transistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5 N/C Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3. Design Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Error Amplifier Input Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Discrete Optocoupler Output Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Integrated Optocoupler Output Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4. Manufacturing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Moisture Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 ESD Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3 Soldering Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.4 Board Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.5 Mechanical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
I
NTEGRATED
C
IRCUITS
D
IVISION
LIA135 / LIA13
R01 www.ixysic.com 3
1. Specifications
1.1 Package Pinout 1.2 Pin Description
1.3 Absolute Maximum Ratings
1
Derate linearly from 25°C at a rate of 2.42mW/°C.
2
Derate linearly from 25°C at a rate of 1.42mW/°C.
Unless otherwise specified, Absolute Maximum ratings are at 25°C. Absolute Maximum Ratings are stress ratings.
Stresses in excess of these ratings can cause permanent damage to the device. Functional operation of the device at
these or any other conditions beyond those indicated in the operational sections of this data sheet is not implied.
Typical values are characteristic of the device at 25°C, and are the result of engineering evaluations. They are
provided for information purposes only, and are not part of the manufacturing testing requirements.
8
7
6
5
1
2
3
4
Pin# Name Description
1 N/C No Connect - not used
2
N/C LIA135: No Connect - not used
B LIA136: Phototransistor Base
3 C Phototransistor Collector
4 E Phototransistor Emitter
5 LED LED Anode and Input Side Power
6COMP
Error Amplifier Compensation
(Error amplifier output)
7 GND Ground (Secondary side of supply)
8FB
Feedback Input
(Error Amplifier Input / Summing node)
Parameter Symbol Ratings Unit
Collector-Emitter Voltage
V
CEO
25 V
Emitter-Collector Voltage
V
ECO
7V
Collector Current
I
CE
50 mA
Input Voltage (Referenced to GND)
V
LED
15 V
Input DC Current
I
LED
20 mA
Input Power Dissipation
1
P
D(IN)
145 mW
Transistor Power Dissipation
2
P
D(NPN)
85 mW
Total Power Dissipation
1
P
D
145 mW
Isolation Voltage, Input Side to Output Side
V
IO
3750
V
rms
Operating Temperature:
T
A
LIA135 -40 to +85 °C
LIA136 -40 to +110 °C
Storage Temperature
T
STG
-55 to +125 °C
P1-P3P4-P6P7-P9P10-P12P13-P13

LIA136STR

Mfr. #:
Buy LIA136STR
Manufacturer:
IXYS Integrated Circuits
Description:
Optically Isolated Amplifiers Low Voltge Optically ISO Error Amplifier
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet