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LT3710EFE#PBF

Description
IC SECONDARY SIDE CTRLR 16TSSOP
CategoryPower/power management    The power supply circuit   
File Size215KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
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LT3710EFE#PBF Overview

IC SECONDARY SIDE CTRLR 16TSSOP

LT3710EFE#PBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeTSSOP
package instructionTSSOP, TSSOP16,.25
Contacts16
Manufacturer packaging codeFE
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresCAN ALSO OPERATE IN PEAK CURRENT MODE
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage24 V
Minimum input voltage8 V
Nominal input voltage11 V
JESD-30 codeR-PDSO-G16
JESD-609 codee3
length5 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature125 °C
Minimum operating temperature
Maximum output current1 A
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP16,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.2 mm
surface mountYES
Switch configurationPUSH-PULL
Maximum switching frequency500 kHz
technologyMOS
Temperature levelOTHER
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width4.4 mm
LT3710
Secondary Side
Synchronous Post Regulator
FEATURES
s
s
s
s
s
s
s
s
DESCRIPTIO
Generates a Regulated Auxiliary Output in Isolated
DC/DC Converters
0.8V
±1.5%
Accurate Voltage Reference
Dual N-Channel MOSFET Synchronous Drivers
High Switching Frequency: Up to 500kHz
Programmable Current Limit Protection
Programmable Soft-Start
Automatic Frequency Synchronization
Small 16-Pin Thermally Enhanced TSSOP Package
The LT
®
3710 is a high efficiency step-down switching
regulator intended for auxiliary outputs in single second-
ary winding, multiple output power supplies.
The LT3710 drives dual synchronous N-channel MOSFETs
and achieves high efficiency. With leading edge modula-
tion, it operates well with either primary side peak current
or voltage mode control. It is synchronized to the falling
edge of the transformer secondary winding and can be
used in both single-ended and double-ended isolated
power converter topologies. A high speed operational
amplifier is incorporated to achieve optimum compensa-
tion and fast transient response. A user selectable discon-
tinuous conduction mode improves light load efficiency.
The LT3710 is available in a thermally enhanced TSSOP-16
exposed pad power package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
48V Isolated DC/DC Converters
Multiple Output Supplies
Offline Converters
TYPICAL APPLICATIO
V
IN
36V
TO 72V
L1
V
CC
BIAS
10k
V
DD
V
CC
BOOST
SYNC GBIAS
10pF
LT3710
V
FB
FG
I
SNS
LTC1698
10k
180pF
TG BG
LT3781
SG
0.01µF
C
S
680pF
CSET
TG
0.1µF
SW
ILCOMP BG
SS
BGS
V
FB
PGND
CL
CL
+
VA
OUT
3.3k
33nF
2.32k
3.01k
220Ω
Q2
B340A
4700pF
Q1
L2
1.8µH
0.006Ω
4.7µF
CMDSH-3
V
COMP
CG
SYNC
OPTODRV
V
C
+
V
REF
V
FB
GND
ISOLATION
BOUNDARY
C
OUT2
: POSCAP, 680µF/4V
L2: SUMIDA CEP125-IR8MC-H
Q1, Q2: SILICONIX Si7440DP
PLEASE REFER TO FIGURE 3
IN THE APPLICATIONS SECTION
FOR THE COMPLETE SCHEMATIC
Figure 1. Simplified Single Secondary Winding 3.3V and 1.8V Output Isolated DC/DC Converter
3710f
U
V
OUT1
3.3V
AT 10A
U
U
+
V
OUT2
1.8V
AT 10A
C
OUT2
3710 F01
1

LT3710EFE#PBF Related Products

LT3710EFE#PBF LT3710EFE#TR LT3710EFE#TRPBF
Description IC SECONDARY SIDE CTRLR 16TSSOP IC reg ctrlr buck pwm 16-tssop IC SECONDARY SIDE CTRLR 16TSSOP
Brand Name Linear Technology Linear Technology Linear Technology
Is it Rohs certified? conform to incompatible conform to
Parts packaging code TSSOP TSSOP TSSOP
package instruction TSSOP, TSSOP16,.25 TSSOP, TSSOP16,.25 TSSOP, TSSOP16,.25
Contacts 16 16 16
Manufacturer packaging code FE FE FE
Reach Compliance Code compliant _compli compliant
ECCN code EAR99 EAR99 EAR99
Other features CAN ALSO OPERATE IN PEAK CURRENT MODE CAN ALSO OPERATE IN PEAK CURRENT MODE CAN ALSO OPERATE IN PEAK CURRENT MODE
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER
control mode VOLTAGE-MODE VOLTAGE-MODE VOLTAGE-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 24 V 24 V 24 V
Minimum input voltage 8 V 8 V 8 V
Nominal input voltage 11 V 11 V 11 V
JESD-30 code R-PDSO-G16 R-PDSO-G16 R-PDSO-G16
JESD-609 code e3 e0 e3
length 5 mm 5 mm 5 mm
Humidity sensitivity level 1 1 1
Number of functions 1 1 1
Number of terminals 16 16 16
Maximum operating temperature 125 °C 125 °C 125 °C
Maximum output current 1 A 1 A 1 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP TSSOP TSSOP
Encapsulate equivalent code TSSOP16,.25 TSSOP16,.25 TSSOP16,.25
Package shape RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 260 235 260
Certification status Not Qualified Not Qualified Not Qualified
Maximum seat height 1.2 mm 1.2 mm 1.2 mm
surface mount YES YES YES
Switch configuration PUSH-PULL PUSH-PULL PUSH-PULL
Maximum switching frequency 500 kHz 500 kHz 500 kHz
technology MOS BIPOLAR BIPOLAR
Temperature level OTHER OTHER OTHER
Terminal surface Matte Tin (Sn) Tin/Lead (Sn/Pb) Matte Tin (Sn)
Terminal form GULL WING GULL WING GULL WING
Terminal pitch 0.65 mm 0.65 mm 0.65 mm
Terminal location DUAL DUAL DUAL
Maximum time at peak reflow temperature 30 20 30
width 4.4 mm 4.4 mm 4.4 mm
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