LT8697E ............................................ –40°C to 125°C
LT8697I ............................................. –40°C to 125°C
LT8697H ............................................ –40°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
24 23 22 21
SYNC 1
TR/SS 2
RT 3
EN/UV 4
V
IN
5
V
IN
6
PGND 7
PGND 8
UDD PACKAGE
24-LEAD (3mm
×
5mm) PLASTIC QFN
θ
JA
= 46°C/W,
θ
JC
= 5°C/W
EXPOSED PAD (PIN 25) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT8697EUDD#PBF
LT8697IUDD#PBF
LT8697HUDD#PBF
TAPE AND REEL
LT8697EUDD#TRPBF
LT8697IUDD#TRPBF
LT8697HUDD#TRPBF
PART MARKING*
LGGW
LGGW
LGGW
PACKAGE DESCRIPTION
24-Lead (3mm
×
5mm) Plastic QFN
24-Lead (3mm
×
5mm) Plastic QFN
24-Lead (3mm
×
5mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°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/
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Notes 2, 4)
PARAMETER
V
IN
Undervoltage Lockout
V
IN
Shutdown Current
V
IN
Current in Regulation
V
IN
to Disable Forced Continuous Mode
Output Sink Current in Forced Continuous Mode
USB5V Voltage
USB5V Voltage Line Regulation
Regulated Load Voltage Through 0.3Ω
USB5V Clamp Voltage
V
EN/UV
= 0.3V
l
ELECTRICAL CHARACTERISTICS
CONDITIONS
l
MIN
TYP
2.9
1
MAX
3.4
3
8
12
31
1.7
5.02
5.04
25
5.075
UNIT
V
µA
µA
mA
V
A
V
V
mV
V
V
V
IN
= 12V, I
LOAD
= 100µA, R
T
= 56.2k
V
IN
Rising
V
USB5V
= 5.5V, L = 6.8µH, R
T
= 56.2k
V
IN
= 12V
l
l
9
27
0.6
4.96
4.91
4.925
29
1
4.99
4.99
6
5
9
l
V
IN
= 6V to 42V
V
IN
= 12V, I
LOAD
= 2.1A, Voltage at Point of Load (End
of Cable), R
CBL
= 13.7k, R
CDC
= 10k, R
SENSE
= 20mΩ
I
USB5V
= 3mA
l
l
8697fb
2
For more information
www.linear.com/LT8697
LT8697
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Notes 2, 4)
PARAMETER
USB5V Current
Current Sense Voltage (V
ISP
– V
ISN
)
CONDITIONS
V
ISN
= 5V, V
ISP
– V
ISN
= 40mV, R
CBL
= 13.7k
V
ISN
= 5V, V
ISP
– V
ISN
= 10mV, R
CBL
= 13.7k
V
ISN
= 5V, V
ISP
– V
ISN
= 0V, R
CBL
= 13.7k
R
CBL
= Open
V
CTRL
= 1.5V, V
ISN
= 5V
V
CTRL
= 1.5V, V
ISN
= 0V
V
CTRL
= 800mV, V
ISN
= 5V
V
CTRL
= 800mV, V
ISN
= 0V
V
CTRL
= 200mV, V
ISN
= 5V
V
CTRL
= 200mV, V
ISN
= 0V
V
ISP
– V
ISN
= 40mV, R
CBL
= 13.7k
V
ISP
– V
ISN
= 10mV, R
CBL
= 13.7k
V
ISP
– V
ISN
= 50mV, V
RCBL
= 0V
V
ISP
= V
ISN
= 0V, 5V
V
ICTRL
= 1.5V
V
SYS
= 0V, 5V
2.6
V
IN
= 12V
V
SYS
= 5V, R
T
= 56.2k
V
SYS
= 5V, I
LOAD
= 2.1A
96
I
LOAD
= 1A
I
LOAD
= 0.5A
6.2
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
ELECTRICAL CHARACTERISTICS
MIN
57.5
12
0
0
45
43
34.5
34
4.5
3.5
720
115
–2
–20
–0.5
TYP
60
15
2
1
48
48.5
39.5
40
9.5
10
800
205
–3
–2
3.4
2.9
5.8
7.5
4
450
97.5
45
80
7
300
700
2.00
120
4.8
4.8
65
4.5
0.1
1.0
40
MAX
62.5
23
8
2
51
54
44.5
46
14.5
16.5
880
305
–4
20
–3
3.15
5.92
5
99
70
110
7.9
340
750
2.05
6
6
5.8
5
1.06
20
UNIT
µA
µA
µA
µA
mV
mV
mV
mV
mV
mV
mV
mV
mA
µA
µA
V
V
V
V
mA
mV
%
ns
ns
V
kHz
kHz
MHz
mΩ
A
A
mΩ
A
µA
V
mV
nA
%
%
%
Ω
µs
V
V
µA
µA
Ω
8697fb
RCBL Monitor Voltage
RCBL Output Current Limit
ISP, ISN Bias Current
ICTRL Current
INTV
CC
Voltage
INTV
CC
Undervoltage Lockout
SYS Voltage in SYS Regulation
SYS Voltage to Disable Forced Continuous Mode
SYS Current in Regulation
Dropout Voltage (V
IN
– V
SYS
)
Maximum Duty Cycle in Dropout
Minimum On-Time
Minimum Off-Time
Oscillator Frequency
5.63
3
l
30
Minimum V
IN
for SYS Regulation at Full Frequency R
T
= 16.5k, V
USB5V
= 0V, I
LOAD
= 0.5A
R
T
= 140k
R
T
= 56.2k
R
T
= 16.5k
I
SW
= 1A
E-, I-Grades
H-Grade
V
INTVCC
= 3.4V, I
SW
= 1A
V
INTVCC
= 3.4V
V
IN
= 42V, V
SW
= 0V, 42V
V
EN/UV
Rising
V
EN/UV
= 2V
V
USB5V
Falling
V
USB5V
Rising
V
PG
= 0.1V
V
USB5V
from 5V to 4V
V
SYNC
Falling
V
SYNC
Rising
V
SYNC
= 2V
V
TR/SS
= 0V
Fault Condition, V
TR/SS
= 0.1V
l
l
l
l
l
250
620
1.85
3.2
2.9
3.5
0.94
–20
6
–6
Top Power NMOS On-Resistance
Top Power NMOS Current Limit
Bottom Power NMOS On-Resistance
Bottom Power NMOS Current Limit
SW Leakage Current
EN/UV Threshold
EN/UV Hysteresis
EN/UV Bias Current
PG Upper Threshold Offset from V
USB5V
PG Lower Threshold Offset from V
USB5V
PG Hysteresis
PG Pull-Down Resistance
PG Transition Delay
SYNC Threshold
SYNC Pin Current
TR/SS Current
TR/SS Pull-Down Resistance
9
–9
1.3
680
40
12
–12
2000
1.4
2.4
1
–3.2
l
0.8
1.6
–1
–1.2
1.1
2.0
–2.2
230
For more information
www.linear.com/LT8697
3
LT8697
ELECTRICAL CHARACTERISTICS
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 LT8697E 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
LT8697I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT8697H is guaranteed over the full –40°C to
150°C operating junction temperature range. High junction temperatures
degrade operating lifetimes. Operating lifetime is derated at junction
temperatures above 125°C.
Note 3:
This IC includes overtemperature protection that is intended to
protect the device during overload conditions. Junction temperature will
exceed 150°C when overtemperature protection is active. Continuous
operation above the specified maximum operating junction temperature
will reduce lifetime.
Note 4:
Polarity specification for current into a pin is positive and out of
a pin is negative. All voltages are referenced to GND unless otherwise
[i=s] This post was last edited by wateras1 on 2018-3-5 17:02 [/i] Why do we need to modify the IP address of the OP router for MTK7688? If you follow my previous post, you may find that the evaluatio...
This article is transferred from the Internet. I wanted to organize it myself, but due to time constraints, I can only post the original post. This article is good. It teaches everyone how to understa...
MCU msp430f249, interrupt vector 0XFFC0-0xFFFF, running free rtos system, timer A interrupt function inserted in official assembly code, free rtos system runs without problem, when I define an externa...
A parallel inverter consists of two thyristors (T1 and T2), a capacitor, a center-tapped transformer, and an inductor. The thyristors provide a current path, while the inductor L maintains a consta...[Details]
In recent years, many people have switched to new energy vehicles, and this type of vehicle has indeed been highly sought after and is considered the future direction of automobile development, and...[Details]
The structure of an LCD TV primarily consists of the LCD display module, power module, driver module (primarily including the main driver board and tuner board), and keypad module. LCD display modu...[Details]
On August 25th, SK Hynix announced that it has completed development and entered mass production of its 321-layer, 2Tb QLC NAND flash memory product. This achievement marks the world's first applic...[Details]
When discussing autonomous driving technology, there are often two extremes: on the one hand, there's the vision of "fully autonomous driving," while on the other, there's concern about potential s...[Details]
1 Source of creativity
With the further development of electronic technology, electronic pets have gradually entered people's family life. At present, there are two main categories of relative...[Details]
In June 2014, the Ministry of Industry and Information Technology issued 4G FD-LTE licenses to China Unicom and China Telecom. Together with the 4G TD-LTE licenses issued to China Mobile, China Uni...[Details]
Smartphones have become essential digital devices, and the growing number of smartphone-centric applications is enriching people's lives. As users, they desire a better app experience and a wider r...[Details]
With the development of science, the use of variable frequency technology is becoming more and more widespread, and it is used in both industrial equipment and household appliances. Inverter air co...[Details]
With the continuous development of the industrial automation industry, we are seeing an increasing number of intelligent devices using flexible, efficient, and precise robotic arms to p...[Details]
A multilevel inverter converts a DC signal into a multilevel staircase waveform. Instead of a straight positive-negative output waveform, the output waveform of a multilevel inverter alternates in ...[Details]
Plug-in hybrid vehicles (PHEVs) utilize two powertrains. Their pure electric range is typically inferior to that of pure electric vehicles, often reaching less than half that. Currently, mainstream...[Details]
Tires are a very important component for cars. They are related to the driving experience of the vehicle. We are almost inseparable from cars in our daily lives. For tires, according to the role of...[Details]
Analog Devices held a third-quarter fiscal 2025 earnings conference call. Vincent T. Roche, CEO and Chairman of the Board, and Richard C. Puccio, Executive Vice President and Chief Financial Office...[Details]
I believe everyone has heard of memory. If your computer is slow, your experts may recommend upgrading it to a larger capacity. But what exactly is computer memory used for? Why does memory capacit...[Details]
Test/Measurement
京公网安备 11010802033920号
EEWORLD
