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LT8300MPS5#PBF

Description
LT8300 - 100VIN Micropower Isolated Flyback Converter with 150V/260mA Switch; Package: SOT; Pins: 5; Temperature Range: -55°C to 125°C
CategoryPower/power management    The power supply circuit   
File Size187KB,6 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LT8300MPS5#PBF Overview

LT8300 - 100VIN Micropower Isolated Flyback Converter with 150V/260mA Switch; Package: SOT; Pins: 5; Temperature Range: -55°C to 125°C

LT8300MPS5#PBF Parametric

Parameter NameAttribute value
Parts packaging codeSOT
package instructionVSSOP, TSOP5/6,.11,37
Contacts5
Manufacturer packaging codeS5
Reach Compliance CodeCompliant
ECCN codeEAR99
Brand NameLinear Technology
Objectid1243172146
Is SamacsysN
Is it Rohs certified?Yes
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Number of functions1
technologyBIPOLAR
Maximum switching frequency780 kHz
Maximum input voltage100 V
Minimum input voltage6 V
Nominal input voltage24 V
Maximum output current0.292 A
surface mountYES
Switch configurationBUCK-BOOST
Certification statusNot Qualified
JESD-30 codeR-PDSO-G5
JESD-609 codee3
length2.9 mm
Maximum seat height1 mm
width1.625 mm
Humidity sensitivity level1
Peak Reflow Temperature (Celsius)260
Maximum time at peak reflow temperature30
Encapsulate equivalent codeTSOP5/6,.11,37
Terminal surfaceMatte Tin (Sn)
Terminal pitch0.95 mm
Terminal locationDUAL
Package body materialPLASTIC/EPOXY
encapsulated codeVSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
Terminal formGULL WING
Number of terminals5
DEMO MANUAL DC1825A
LT8300
100V
IN
Micropower Isolated Flyback
Converter with 150V/260mA Switch
Description
Demonstration circuit 1825A is an isolated flyback con-
verter featuring the
LT
®
8300.
This demo circuit outputs
5.0V, and maintains tight regulation with a load current
from ~1mA to 250mA and over an input from 22V to 75V,
with a nominal 48V. The output current capability increases
with the input voltage.
The DC1825A needs a very small minimum load (~1mA) to
regulate the output voltage, thanks to the accurate current
limit capability and ultra low switching frequency of the
LT8300 at very light load. The standby input current of
the demo circuit is less than 400µA (typical) because of
the low quiescent current design of the IC and very small
minimum load requirement.
The Performance Summary table summarizes the perfor-
mance of the demo board at room temperature. The demo
circuit can be easily modified for different applications with
some pre-designed transformers.
The LT8300 is a simple-to-use high voltage monolithic iso-
lated flyback converter. No third winding or opto-isolator
is required for regulation. The part sets the isolated out-
put voltage with a single external resistor and integrates
compensation and soft start circuitry inside. Boundary
mode operation provides a small magnetic solution with
improved load regulation. Low ripple Burst Mode
®
opera-
tion maintains high efficiency at light loads while minimizing
the output voltage ripple. A 260mA, 150V DMOS power
switch is integrated along with all high voltage circuitry
and control logic into a 5-lead ThinSOT™ package.
The LT8300 data sheet gives a complete description of
the part, operation and application information. The data
sheet must be read in conjunction with this quick start
guide for DC1825A.
Design files for this circuit board are available at
http://www.linear.com/demo
L,
LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
performance summary
PARAMETER
Input Voltage
V
IN
Quiescent Current
Output Voltage
Maximum Output Current
Output Voltage Ripple (Peak to Peak)
Typical Switching Frequency
Minimum Switching Frequency
Efficiency
Specifications are at T
A
= 25°C
MIN
22
TYP
48
400
4.75
250
50
330
8
80
5
5.25
MAX
75
UNITS
V
µA
V
mA
mV
kHz
kHz
%
CONDITIONS
I
OUT
= 0mA, V
IN
= 75V
V
IN
= 22V – 75V
I
OUT
= 1mA – 250mA
V
IN
= 22V
V
IN
= 22V – 75V, I
OUT
= 250mA
V
IN
= 48V, I
OUT
= 250mA
I
OUT
= 0mA
V
IN
= 48V, I
OUT
= 250mA
dc1825af
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