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LT3782IFE#TR

Description
IC 4 A SWITCHING CONTROLLER, 533 kHz SWITCHING FREQ-MAX, PDSO28, 4.40 MM, PLASTIC, TSSOP-28, Switching Regulator or Controller
CategoryPower/power management    The power supply circuit   
File Size220KB,20 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LT3782IFE#TR Overview

IC 4 A SWITCHING CONTROLLER, 533 kHz SWITCHING FREQ-MAX, PDSO28, 4.40 MM, PLASTIC, TSSOP-28, Switching Regulator or Controller

LT3782IFE#TR Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSSOP
package instructionHTSSOP, TSSOP28,.25
Contacts28
Reach Compliance Codenot_compliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage40 V
Minimum input voltage6 V
Nominal input voltage13 V
JESD-30 codeR-PDSO-G28
JESD-609 codee0
length9.7 mm
Humidity sensitivity level1
Number of functions1
Number of terminals28
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Maximum output current4 A
Package body materialPLASTIC/EPOXY
encapsulated codeHTSSOP
Encapsulate equivalent codeTSSOP28,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1.2 mm
surface mountYES
Switch configurationPHASE-SHIFT
Maximum switching frequency533 kHz
technologyBIPOLAR
Temperature levelAUTOMOTIVE
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width4.4 mm
NOT RECOMMENDED FOR NEW DESIGNS
Contact Linear Technology for Potential Replacement
LT3782
2-Phase Step-UP
DC/DC Controller
DESCRIPTION
The LT
®
3782 is a current mode two phase step-up DC/DC
converter controller. Its high switching frequency (up to
500kHz) and 2-phase operation reduce system filtering
capacitance and inductance requirements.
With 10V gate drive (V
CC
≥13V) and 4A peak drive current,
the LT3782 can drive most industrial grade high power
MOSFETs with high efficiency. For synchronous applica-
tions, the LT3782 provides synchronous gate signals with
programmable falling edge delay to avoid cross conduc-
tion when using external MOSFET drivers. Other features
include programmable undervoltage lockout, soft-start,
current limit, duty cycle clamp (50% or higher) and slope
compensation.
The LT3782 is available in thermally enhanced 28-lead
TSSOP and 4mm
×
5mm QFN packages.
For new designs use the LT3782A which has improved
phase matching
L,
LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 6144194.
FEATURES
n
n
n
n
n
n
n
n
n
n
n
2-Phase Operation Reduces Required Input and
Output Capacitance
Programmable Switching Frequency:
150kHz to 500kHz
6V to 40V Input Range
10V Gate Drive with V
CC
≥13V
High Current Gate Drive (4A)
Programmable Soft-Start and Current Limit
Programmable Slope Compensation for
High Noise Immunity
MOSFET Gate Signals with Programmable
Falling Edge Delay for External Synchronous
Drivers
Programmable Undervoltage Lockout
Programmable Duty Cycle Clamp (50% or Higher)
Thermally Enhanced 28-Lead TSSOP and 4mm
×
5mm
QFN Packages
APPLICATIONS
n
n
n
Industrial Equipment
Telecom Infrastructure
Interleaved Isolated Power Supply
TYPICAL APPLICATION
50V 4A Boost Converter
V
IN
10V TO 36V
R6
825k
C
IN
10μF
50V
2x
R8
274k
1μF
RUN
L1
V
CC
GBIAS1
GBIAS2
GBIAS
BGATE1
R
S1
0.004Ω
V
EE1
SLOPE
DELAY
R
FREQ
80k
DCL
R
SET
SS
0.1μF
V
C
13k
100pF
6.8nF
GND
V
EE2
10Ω
SENSE1
+
SENSE1
SENSE2
+
SENSE2
FB
10nF
10nF
R
F1
475k
10Ω
85
0
1
2
3
I
OUT
(A)
4
5
3782 TA01b
D1
30BQ060
D2
30BQ060
+
C3
2μF
L2
M1
Si7852dp
2x
C
OUT1
10μF
50V
2x
V
OUT
50V, 4A
+
Efficiency and Power Loss
vs Load Current
97
EFFICIENCY
95
V
IN
= 12V
POWER LOSS (W)
EFFICIENCY (%)
93
91
89
87
V
IN
= 12V
V
IN
= 24V
POWER LOSS
3
0
12
9
6
V
IN
= 24V
15
18
C
OUT2
220μF
LT3782
R
SLOPE
59k
BGATE2
M2
Si7852dp
2x
R
S2
0.004Ω
L1, L2: PB2020.223
C
IN
, C
OUT1
: X7R, TDK
3782 TA01
R
F2
24.9k
3782fg
1

LT3782IFE#TR Related Products

LT3782IFE#TR LT3782EFE#PBF LT3782EFE#TRPBF LT3782EUFD#TRPBF LT3782IFE#PBF LT3782EUFD#PBF LT3782IFE#TRPBF LT3782EUFD#TR
Description IC 4 A SWITCHING CONTROLLER, 533 kHz SWITCHING FREQ-MAX, PDSO28, 4.40 MM, PLASTIC, TSSOP-28, Switching Regulator or Controller IC REG CTRLR BOOST 28TSSOP IC REG CTRLR BOOST 28TSSOP IC REG CTRLR BOOST 28QFN IC REG CTRLR BOOST 28TSSOP IC REG CTRLR BOOST 28QFN IC REG CTRLR BOOST 28TSSOP IC 4 A SWITCHING CONTROLLER, 533 kHz SWITCHING FREQ-MAX, PQCC28, 4 X 5 MM, PLASTIC, MO-220, QFN-28, Switching Regulator or Controller
Is it Rohs certified? incompatible conform to conform to conform to conform to conform to conform to incompatible
Parts packaging code SSOP TSSOP TSSOP QFN TSSOP QFN TSSOP QFN
package instruction HTSSOP, TSSOP28,.25 HTSSOP, TSSOP28,.25 HTSSOP, TSSOP28,.25 HVQCCN, LCC28,.16X.2,20 HTSSOP, TSSOP28,.25 HVQCCN, LCC28,.16X.2,20 HTSSOP, TSSOP28,.25 HVQCCN, LCC28,.16X.2,20
Contacts 28 28 28 28 28 28 28 28
Reach Compliance Code not_compliant compliant compliant compliant compliant compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER
control mode CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 40 V 40 V 40 V 40 V 40 V 40 V 40 V 40 V
Minimum input voltage 6 V 6 V 6 V 6 V 6 V 6 V 6 V 6 V
Nominal input voltage 13 V 13 V 13 V 13 V 13 V 13 V 13 V 13 V
JESD-30 code R-PDSO-G28 R-PDSO-G28 R-PDSO-G28 R-PQCC-N28 R-PDSO-G28 R-PQCC-N28 R-PDSO-G28 R-PQCC-N28
JESD-609 code e0 e3 e3 e3 e3 e3 e3 e0
length 9.7 mm 9.7 mm 9.7 mm 5 mm 9.7 mm 5 mm 9.7 mm 5 mm
Humidity sensitivity level 1 1 1 1 1 1 1 1
Number of functions 1 1 1 1 1 1 1 1
Number of terminals 28 28 28 28 28 28 28 28
Maximum operating temperature 125 °C 85 °C 85 °C 85 °C 125 °C 85 °C 125 °C 85 °C
Maximum output current 4 A 4 A 4 A 4 A 4 A 4 A 4 A 4 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code HTSSOP HTSSOP HTSSOP HVQCCN HTSSOP HVQCCN HTSSOP HVQCCN
Encapsulate equivalent code TSSOP28,.25 TSSOP28,.25 TSSOP28,.25 LCC28,.16X.2,20 TSSOP28,.25 LCC28,.16X.2,20 TSSOP28,.25 LCC28,.16X.2,20
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius) 235 260 260 260 260 260 260 235
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.2 mm 1.2 mm 1.2 mm 0.8 mm 1.2 mm 0.8 mm 1.2 mm 0.8 mm
surface mount YES YES YES YES YES YES YES YES
Switch configuration PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT PHASE-SHIFT
Maximum switching frequency 533 kHz 533 kHz 533 kHz 533 kHz 533 kHz 533 kHz 533 kHz 533 kHz
Temperature level AUTOMOTIVE OTHER OTHER OTHER AUTOMOTIVE OTHER AUTOMOTIVE OTHER
Terminal surface Tin/Lead (Sn/Pb) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING GULL WING NO LEAD GULL WING NO LEAD GULL WING NO LEAD
Terminal pitch 0.65 mm 0.65 mm 0.65 mm 0.5 mm 0.65 mm 0.5 mm 0.65 mm 0.5 mm
Terminal location DUAL DUAL DUAL QUAD DUAL QUAD DUAL QUAD
Maximum time at peak reflow temperature 20 30 30 30 30 30 30 20
width 4.4 mm 4.4 mm 4.4 mm 4 mm 4.4 mm 4 mm 4.4 mm 4 mm
Maker Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) -
technology BIPOLAR - - BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR
Brand Name - Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology -
Manufacturer packaging code - FE FE UFD FE UFD FE -
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