FB Voltage ...................................................................6V
SHDN
Voltage ...........................................................40V
BD Voltage ..................................................................7V
Operating Junction Temperature Range (Note 2)
LT3502AE, LT3502E ...........................–40°C to 125°C
LT3502AI, LT3502I .............................–40°C to 125°C
Storage Temperature Range...................–65°C to 150°C
PIN CONFIGURATION
TOP VIEW
V
IN
1
BD 2
FB 3
SHDN 4
9
8 SW
7 BOOST
6 DA
5 GND
SW
BOOST
NC
DA
GND
1
2
3
4
5
TOP VIEW
10
9
8
7
6
V
IN
NC
BD
FB
SHDN
DC PACKAGE
8-LEAD (2mm
×
2mm) PLASTIC DFN
θ
JA
= 102°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
MS PACKAGE
10-LEAD PLASTIC MSOP
θ
JA
= 110°C/W
ORDER INFORMATION
LEAD FREE FINISH
LT3502EDC#PBF
LT3502IDC#PBF
LT3502AEDC#PBF
LT3502AIDC#PBF
LT3502EMS#PBF
LT3502IMS#PBF
LT3502AEMS#PBF
LT3502AIMS#PBF
TAPE AND REEL
LT3502EDC#TRPBF
LT3502IDC#TRPBF
LT3502AEDC#TRPBF
LT3502AIDC#TRPBF
LT3502EMS#TRPBF
LT3502IMS#TRPBF
LT3502AEMS#TRPBF
LT3502AIMS#TRPBF
PART MARKING*
LCLV
LCLV
LCLT
LCLT
LTDTR
LTDTR
LTDTS
LTDTS
PACKAGE DESCRIPTION
8-Lead 2mm
×
2mm Plastic DFN
8-Lead 2mm
×
2mm Plastic DFN
8-Lead 2mm
×
2mm Plastic DFN
8-Lead 2mm
×
2mm Plastic DFN
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
10-Lead Plastic MSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
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/
3502fc
2
LT3502/LT3502A
ELECTRICAL CHARACTERISTICS
PARAMETER
Undervoltage Lockout
Quiescent Current at Shutdown
Quiescent Current
Feedback Voltage
V
SHDN
= 0V
Not Switching
2mm
×
2mm DFN
2mm
×
2mm DFN
MS10
MS10
(Note 5)
I
DA
< 500mA (LT3502A)
I
DA
< 500mA (LT3502A)
I
DA
< 500mA (LT3502)
I
DA
< 500mA (LT3502)
100mA Load (LT3502A)
100mA Load (LT3502)
I
SW
= 500mA
(Note 3)
SW = 10V (Note 4)
SW = 0V (Note 5)
I
SW
= 500mA
I
SW
= 500mA
I
OUT
= 100mA
500
V
SHDN
= 5V
V
SHDN
= 0V
2
0.3
0.75
●
●
The
●
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 10V, V
SHDN
= 5V, V
BOOST
= 15V.
CONDITIONS
MIN
2.6
TYP
2.8
0.5
1.5
0.785
0.79
0.780
0.786
0.8
0.8
0.8
0.8
0.005
●
●
●
MAX
3
2
2
0.813
0.81
0.816
0.813
50
2.7
2.8
1.3
1.4
UNITS
V
μA
mA
V
V
V
V
%/V
nA
MHz
MHz
MHz
MHz
%
%
mV
Reference Voltage Line Regulation
FB Pin Bias Current
Switching Frequency
1.9
1.8
0.9
0.8
70
80
15
2.25
2.25
1.1
1.1
80
90
450
0.9
95
8
10
1.9
0.8
650
55
Maximum Duty Cycle
Switch V
CESAT
Switch Current Limit
Switch Active Current
BOOST Pin Current
Minimum BOOST Voltage Above Switch
BOOST Schottky Forward Drop
DA Pin Current to Stop OSC
SHDN
Bias Current
SHDN
Input Voltage High
SHDN
Input Voltage Low
1.1
130
30
13
2.2
1
80
1
A
μA
μA
mA
V
V
mA
μA
μA
V
V
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 LT3502EDC and LT3502AEDC are guaranteed to meet
performance specifications from 0°C to 125°C junction temperature
range. Specifications over the –40°C to 125°C operating junction
temperature range are assured by design, characterization and correlation
with statistical process controls. The LT3502IDC and LT3502AIDC are
guaranteed over the – 40°C to 125°C operating junction temperature
range.
Note 3:
Current limit guaranteed by design and/or correlation to static test.
Slope compensation reduces current limit at higher duty cycle.
If the CPUs like 2410 or Atmel 9263 have 64MB RAM and flash, do I need to rewrite the driver if it can be used? Or can the old one be used? What are the hardware requirements for wince6.0? Thanks for ...
I am currently in school and have read a lot of job postings online, but I have not found any positions in embedded development. Of course, I just haven't seen any now. I would like to know how I can ...
I want to develop a protocol stack for a wireless sensor network. What software platforms are generally available? Is IAR OK? For operating systems, should I use TinyOS or US/OS? I don't quite underst...
Hey guys, I want to send data from the host computer to the microcontroller through the network interface, and the microcontroller processes it and performs corresponding operations on the lower compu...
Hey guys, I sent a PCB out for plate making today, but the manufacturer said that the GKO layer was missing. I re-exported it several times, but the GKO layer was still missing. I feel a little depres...
[font=宋体][size=12.0pt]I have been using ST and Renesas before. After the ZTE incident this year, I want to prepare an alternative plan. Which domestic companies are good at low-power MCU? Welcome to d...
To understand why car engines need gearboxes, we must first understand the characteristics of different types of engines. An engine refers to a machine that can convert a form of energy into kineti...[Details]
The mass production process of the new generation of cockpit platform has started, and the smart cockpit market has entered a new bonus cycle of technology iteration and platform upgrade.
...[Details]
1. Introduction
Electronic scales are gradually replacing traditional measuring tools like springs and balances in everyday life, such as electronic price computing scales and electronic weigh...[Details]
Since the beginning of this year, price wars have intensified, new models have been launched one after another, used cars with zero kilometers have become a hot topic, and the industry's internal c...[Details]
As AI accelerates across industries, the demand for data center infrastructure is also growing rapidly.
Keysight Technologies, in collaboration with Heavy Reading, released the "Beyo...[Details]
While the current industry consensus is that autonomous vehicles are robots and that their systems are managed using robotics-developed thinking, there are also cases where autonomous driving is ac...[Details]
Electric vehicles' 12V batteries don't rely on a generator to power them. Only gasoline-powered vehicles rely on the engine to drive a generator to generate electricity while driving, which is used...[Details]
1. Multi-channel DAC technology bottleneck
Currently,
the development of multi-channel DAC technology focuses on two core challenges.
First, industrial applications urgently ...[Details]
According to Nikkei, Japan has performed poorly in responding to China's power semiconductor challenges.
There are five major companies in Japan's power chip market: Mitsubishi Electric,...[Details]
A patent disclosed by Ford proposes replacing traditional segmented side curtain airbags with integrated full-width side curtain airbags that span the side of the vehicle and can be deployed simult...[Details]
According to foreign media reports, Ford Motor has applied to the U.S. Patent and Social Security Office (USPTO) for a patent for a door anti-collision system that may be used in future Ford vehicl...[Details]
Lightweighting of automobiles is still a relatively unfamiliar term for automobiles. With the continuous improvement of environmental protection requirements, relevant regulations have also put for...[Details]
Renesas Electronics' new ultra-low-power RA4C1 MCU features advanced security and a dedicated peripheral set, making it ideal for metering and other applications.
The new product mee...[Details]
Traditionally, electrical energy is transmitted primarily through wires, requiring direct physical contact between the power source and the load. With the increasing number of electrical devices in...[Details]
The drive shaft is the shaft in a universal joint that transmits power. As a high-speed, low-support rotating body, its dynamic balance is crucial. Generally, drive shafts undergo dynamic balancing...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
