SENSE ......................................................................0.4V
Operating Junction Temperature Range (Note 2)
LT3748E/LT3748I ............................... –40°C to 125°C
LT3748H ............................................ –40°C to 150°C
LT3748MP ......................................... –55°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
MS PACKAGE
16 (12)-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 90°C/W
orDer inForMation
LEAD FREE FINISH
LT3748EMS#PBF
LT3748IMS#PBF
LT3748HMS#PBF
LT3748MPMS#PBF
TAPE AND REEL
LT3748EMS#TRPBF
LT3748IMS#TRPBF
LT3748HMS#TRPBF
LT3748MPMS#TRPBF
PART MARKING*
3748
3748
3748
3748
PACKAGE DESCRIPTION
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–55°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
electrical characteristics
PARAMETER
Input Voltage Range
Quiescent Current
V
IN
Quiescent Current, INTV
CC
Overdriven
INTV
CC
Voltage Range
INTV
CC
Pin Regulation Voltage
INTV
CC
Dropout
INTV
CC
Undervoltage Lockout
EN/UVLO Pin Threshold
EN/UVLO Pin Hysteresis Current
Soft-Start Current
Soft-Start Threshold
Soft-Start Reset Current
Not Switching
V
EN/UVLO
= 0.2V
V
INTVCC
= 10V
CONDITIONS
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 10V, unless otherwise noted.
MIN
l
TYP
1.3
0
300
MAX
100
1.75
1
450
20
7.2
3.75
1.25
2.9
UNITS
V
mA
µA
µA
V
V
V
V
V
µA
µA
V
mA
5
l
4.5
6.8
7
0.7
3.6
1.223
2.4
5
0.65
3
(V
IN
– V
INTVCC
), I
INTVCC
= 10mA, V
IN
= 5V
Falling Threshold
EN/UVLO Pin Voltage Rising
EN/UVLO = 1V
V
SS
= 0.4V (Note 3)
l
l
3.45
1.19
1.9
2
3748fb
For more information
www.linear.com/LT3748
LT3748
electrical characteristics
PARAMETER
Maximum SENSE Current Limit Threshold
Minimum SENSE Current Limit Threshold
Maximum to Minimum SENSE Threshold
Ratio
SENSE Overcurrent Threshold
SENSE Input Bias Current
R
REF
Voltage
R
REF
Voltage Line Regulation
R
REF
Pin Bias Current
TC Current into R
REF
Error Amplifier Voltage Gain
Error Amplifier Transconductance
V
C
Source Current
V
C
Sink Current
Flyback Comparator Trip Current
Minimum GATE Off-Time
Minimum GATE On-Time
Maximum Discontinuous Off-Time
Maximum GATE Off-Time
Maximum GATE On-Time
GATE Output Rise Time
GATE Output Fall Time
GATE Output Low (V
OL
)
GATE Output High (V
OH
)
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
The LT3748E is guaranteed to meet performance specifications
from 0°C to 125°C junction temperature. Specifications over the –40°C
to 125°C operating junction temperature range are assured by design
characterization and correlation with statistical process controls. The
V
INTVCC
– 0.05
V
C
= 0V
V
RREF
= 0.5V
V
SENSE
= 0V
C
L
= 3300pF, 10% to 90%
C
L
= 3300pF, 10% to 90%
∆I
= 10µA
V
C
= 1.1V, V
RREF
= 0.5V
V
C
= 1.1V, V
RREF
= 2V
Current into R
FB
Pin, R
REF
= 6.04k
V
C
= 2.2V
V
SENSE
= 10mV (Note 3)
V
C
= 1.1V
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 10V, unless otherwise noted.
CONDITIONS
V
C
= 2.2V
l
MIN
95
90
5.2
115
10
1.20
1.195
TYP
100
100
15
6.6
130
15
1.223
0.005
MAX
105
110
8.2
145
20
1.24
1.245
0.025
500
UNITS
mV
mV
mV
mV/mV
mV
µA
V
V
%/V
nA
µA
V/V
µmhos
µA
µA
µA
ns
ns
µs
µs
µs
ns
ns
V
C
= 0V
l
5V < V
IN
< 100V
(Note 3)
R
TC
= 20k
l
35
27.5
115
155
–45
48
10
700
250
24
55
55
16
16
0.05
V
V
LT3748I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT3748H is guaranteed over the full –40°C to
150°C operating junction temperature range. The LT3748MP is guaranteed
over the full –55°C to 150°C operating junction temperature range. High
junction temperatures degrade operating lifetimes. Operating lifetime is
derated at junction temperatures greater than 125°C.
Forward: [align=left][color=#000]My wife loves flowers, and receiving a simple, small bouquet of flowers brings a smile to her face. Flowers also make the home more cozy and bring us joy. [/color][/al...
[i=s]This post was last edited by Jacktang on 2019-11-12 20:41[/i]Circuit features: 1. Fully symmetrical complementary Class A amplifier circuit design is adopted;2. The input stage uses Toshiba's aud...
Thanks to the organizers and sponsors of the competition. I received the development board kit today and now I am sending out the unboxing photos of the development board kit....
蓝色天使onsemi and Avnet IoT Innovation Design Competition
Is anyone working on the stm32f4 series? After the USB host interface on the board is plugged into the USB, when debugging the USB HOST program, the device cannot be detected, that is, an interrupt ca...
A button connected to a pin, with the other end of the button grounded. After the button is released, is the zero value written into the register? Is the register value connected to the pin 1 after re...
Development board: Terasic DE1-SoC, main chip: Cyclone V series 5CSEMA5F31C6. Please tell me, after I regenerate the device tree, how can I replace the original device tree file in the SD card?...
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
1. Overview
Will passive devices
produce nonlinear intermodulation distortion? The answer is yes! Although there is no systematic theoretical analysis, it has been found in engineerin...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[Details]
Investment in
the
medical device
industry has been on the rise in recent years. In the past two years, venture capital for medical devices has almost doubled, reaching $4 billion in 2007. Fr...[Details]
Capacitors
are basic components in various electronic devices and are widely used for bypassing, coupling,
filtering
, tuning, etc. in electronic circuits. However, to use capacitors,...[Details]
Recently, news came from the certification department that the photovoltaic grid-connected inverter of Samil New Energy Co., Ltd. (hereinafter referred to as "Samil New Energy") has once again obta...[Details]
1 Introduction
At present, advocating health has become the focus of people's attention, and the emergence of treadmills has become more and more popular. People can exercise at home or in the ...[Details]
0 Introduction
Pneumatic
artificial muscle,
also known as pneumatic muscle actuator (PMA), began to be studied in the 1950s. In recent years, it has been widely studied and applied ...[Details]
AUTOSAR is a hierarchical architecture for automotive electronic embedded software jointly launched by global automotive OEMs and suppliers. The hierarchical architecture consists of a microcontrol...[Details]
Analogue and Mixed Signal
京公网安备 11010802033920号
EEWORLD
