DC1038A-A datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > Development board/suite/development tools> DC1038A-A

DC1038A-A: Descriptionboard eval for lt3837efe; CategoryDevelopment board/suite/development tools; File Size302KB，7 Pages; ManufacturerLinear ( ADI ); Websitehttp://www.analog.com/cn/index.html; Environmental Compliance

Download Datasheet Compare View All

DC1038A-A Online Shopping

Suppliers	Part Number	Price	MOQ	In stock
	DC1038A-A	-	-	View	Buy Now

DC1038A-A Overview

board eval for lt3837efe

Preview

Download Datasheet

View All

DEMO C IR C U IT 1 0 3 8 A-A

LT3837

Q U IC K S TAR T G U IDE

LT3 8 3 7

Is o la te d F ly b a c k C o n v e rte r w ith

S y n c h ro n o u s R e c tific a tio n

DESCRIPTION

Demonstration circuit 1038A-A is a 33 W att Isol

ated Fl

back Converter w ith Synchronous Rectification and Pri-

mary-Side Regul

ation featuring the LT3837.

This circuit w as designed to demonstrate the high l s

evel

of performance, efficiency, and smal sol

l ution size attain-

abl using this part in a fl

yback pow er suppl It operates

at 200kHz and produces a regul

ated 3.3V, 10A output

from an input vol

tage range of 9 to 36V:suitabl for

automotive, industrial and other appl

ications. It has a

footprint area that is l than an eighth-brick. Synchro-

ess

nous rectification hel to attain efficiency exceeding

88%. Isol

ation vol

tage is 1500VDC.

Design files for this circuit board are available. Call

the LTC factory.

, LTC, LTM , LT, Burst M ode, O PTI-LOO P, Over-The-Top and Pol

yPhase are registered

trademarks of Linear Technol Corporation. Adaptive Pow er, C-Load, DirectSense, Easy

ogy

Drive, Fil

terCAD, Hot Sw ap, LinearView , µM odul M icropow er Sw itcherCAD, M ul

timode

ter,

Protect,

Dimming, No Latency , N o Latency Del

ta-Sigma, N o R

SEN SE

, O perationalFil Panel

Pow erPath, Pow erSOT, SmartStart, SoftSpan, Stage Shedding, Sw itcherCAD, ThinSOT,

traFast and VLDO are trademarks of Linear Technol Corporation. O ther product names

ogy

may be trademarks of the companies that manufacture the products.

PERF ORM A NCE SU M M A RY

SYM BOL

OUT

OUT P-P

REG

OUT

PARAM ETER

Input Suppl Range

Output Vol

tage

Output Current Range

Sw itching (Cl

ock) Frequency

Output Rippl

Output Regul

ation

Efficiency (see Figure 2)

Specifications are at TA = 25°C

CONDI ONS

200

±1.2

TYP

3.3

= 9 –36V

= 18V, I

OUT

= 10A (20M Hz BW )

Line and Load (9-36V, 0-10A)

=18V, I

OUT

= 10A

M AX

UNI

kHz

P–P

OPERA TING PRINCIPL ES

The LT3837 Synchronous Fl

yback PW M Controler is

used on the primary and drives a secondary-side

M OSFET through a pul transformer to provide a syn-

chronous rectified output.

W hen an input vol

tage is appl an undervol

ied,

tage circuit

keeps the LT3837 in its quiescent state w hil a current

source charges Cvcc (C8) to 8.2V. The controler is then

enabl and start-up commences. The primary circuit

ed,

operates from the charge stored in Cvcc untilthe house-

keeping w inding of T1 starts to support Vcc. W hen a

heavy overl or short-circuit prevents T1 supporting

oad

Vcc, the converter operates in ‘

burp-mode’ cutting off

w hen Vcc decl

ines to 7.0V, maintaining l pow er dissi-

pation in the circuit. The LT3837 provides a synchronous

rectifier gate drive signal w hich is passed to the secon-

dary through T2 and subsequentl buffered.

Regul

ation is attained by observing the vol

tage on the

housekeeping w inding of T1 during the Fl

yback time, and

Pul W idth M odul

ating (PW M ) the Primary Gate drive

(PG) and Synchronous Gate drive (SG). The LT3837 is

programmed to compensate for circuit resistance that is

outside of the controll

oop.

DC1038A-A Related Products

	DC1038A-A	DC1038A-B	DC950A-B	LT3837EFE#PBF	LT3837IFE#TRPBF	LT3837EFE#TRPBF	LT3837IFE#PBF
Description	board eval for lt3837efe	board eval for lt3837efe	board eval for lt3837efe	IC REG CTRLR FLYBACK 16TSSOP	IC REG CTRLR FLYBACK 16TSSOP	IC REG CTRLR FLYBACK 16TSSOP	IC REG CTRLR FLYBACK 16TSSOP
Brand Name	-	-	-	Linear Technology	Linear Technology	Linear Technology	Linear Technology
Is it Rohs certified?	-	-	-	conform to	conform to	conform to	conform to
Maker	-	-	-	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )	Linear ( ADI )
Parts packaging code	-	-	-	TSSOP	TSSOP	TSSOP	TSSOP
package instruction	-	-	-	HTSSOP, TSSOP16,.25	HTSSOP, TSSOP16,.25	HTSSOP, TSSOP16,.25	HTSSOP, TSSOP16,.25
Contacts	-	-	-	16	16	16	16
Manufacturer packaging code	-	-	-	FE	FE	FE	FE
Reach Compliance Code	-	-	-	compliant	compliant	compliant	compliant
ECCN code	-	-	-	EAR99	EAR99	EAR99	EAR99
Analog Integrated Circuits - Other Types	-	-	-	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER	SWITCHING CONTROLLER
control mode	-	-	-	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE	CURRENT-MODE
Maximum input voltage	-	-	-	20 V	20 V	20 V	20 V
Minimum input voltage	-	-	-	4.5 V	4.5 V	4.5 V	4.5 V
Nominal input voltage	-	-	-	14 V	14 V	14 V	14 V
JESD-30 code	-	-	-	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16
JESD-609 code	-	-	-	e3	e3	e3	e3
length	-	-	-	5 mm	5 mm	5 mm	5 mm
Humidity sensitivity level	-	-	-	1	1	1	1
Number of functions	-	-	-	1	1	1	1
Number of terminals	-	-	-	16	16	16	16
Maximum operating temperature	-	-	-	85 °C	125 °C	85 °C	125 °C
Package body material	-	-	-	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	-	-	-	HTSSOP	HTSSOP	HTSSOP	HTSSOP
Encapsulate equivalent code	-	-	-	TSSOP16,.25	TSSOP16,.25	TSSOP16,.25	TSSOP16,.25
Package shape	-	-	-	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	SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	-	-	-	260	260	260	260
Certification status	-	-	-	Not Qualified	Not Qualified	Not Qualified	Not Qualified
Maximum seat height	-	-	-	1.1 mm	1.1 mm	1.1 mm	1.1 mm
surface mount	-	-	-	YES	YES	YES	YES
Switch configuration	-	-	-	SINGLE	SINGLE	SINGLE	SINGLE
Maximum switching frequency	-	-	-	110 kHz	110 kHz	110 kHz	110 kHz
Temperature level	-	-	-	OTHER	AUTOMOTIVE	OTHER	AUTOMOTIVE
Terminal surface	-	-	-	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
Terminal form	-	-	-	GULL WING	GULL WING	GULL WING	GULL WING
Terminal pitch	-	-	-	0.65 mm	0.65 mm	0.65 mm	0.65 mm
Terminal location	-	-	-	DUAL	DUAL	DUAL	DUAL
Maximum time at peak reflow temperature	-	-	-	30	30	30	30
width	-	-	-	4.4 mm	4.4 mm	4.4 mm	4.4 mm

Recommended Resources

Soil moisture meter circuit diagram

M708 (TV) infrared remote control transmitter circuit

Priority interrupt encoder circuit

Frequency measurement system of intelligent electric thin film thickness gauge

1X0614CE (video recorder) infrared remote control receiving preamplifier circuit

High material level and high power automatic control circuit

Shortcut: L0 L1 L2 L3 L4 L5 L6 L7 L8 L9 LA LB LC LD LE LF LG LH LI LJ LK LL LM LN LO LP LQ LR LS LT LU LV LW LX LY LZ M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ N0 N1 N2 N3 N4 N5 N6 N7 N8 NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NX NZ O0 O1 O2 O3 OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OP OQ OR OS OT OV OX OY OZ P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ Q1 Q2 Q3 Q4 Q5 Q6 Q8 Q9 QA QB QC QE QF QG QH QK QL QM QP QR QS QT QV QW QX QY R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 RA RB RC RD RE RF RG RH RI RJ RK RL RM RN RO RP RQ RR RS RT RU RV RW RX RY RZ

Popular Components