LTC4227C ................................................ 0°C to 70°C
LTC4227I .............................................–40°C to 85°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
GN Package ...................................................... 300°C
pin conFiguraTion
TOP VIEW
DGATE1
HGATE
CPO1
OUT
TOP VIEW
DGATE1
16 NC
15 ON
21
14
EN
13 TMR
12
D2ON
11
FAULT
7
DGATE2
8
CPO2
9 10
NC
PWRGD
SENSE
–
SENSE
+
IN1
INTV
CC
GND
IN2
DGATE2
1
2
3
4
5
6
7
8
16 CPO1
15 HGATE
14 OUT
13 ON
12 TMR
11
D2ON
10
PWRGD
9
CPO2
20 19 18 17
SENSE
–
1
SENSE
+
2
IN1 3
INTV
CC
4
GND 5
IN2 6
GN PACKAGE
16-LEAD PLASTIC SSOP NARROW
T
JMAX
= 125°C,
θ
JA
= 110°C/W
UFD PACKAGE
20-LEAD (4mm
×
5mm) PLASTIC QFN
T
JMAX
= 125°C,
θ
JA
= 34°C/W
EXPOSED PAD (PIN 21) PCB GND CONNECTION OPTIONAL
2
422712fa
For more information
www.linear.com/LTC4227
LTC4227
orDer inForMaTion
LEAD FREE FINISH
LTC4227CUFD-1#PBF
LTC4227CUFD-2#PBF
LTC4227CUFD-3#PBF
LTC4227CUFD-4#PBF
LTC4227IUFD-1#PBF
LTC4227IUFD-2#PBF
LTC4227IUFD-3#PBF
LTC4227IUFD-4#PBF
LTC4227CGN-1#PBF
LTC4227CGN-2#PBF
LTC4227IGN-1#PBF
TAPE AND REEL
LTC4227CUFD-1#TRPBF
LTC4227CUFD-2#TRPBF
LTC4227CUFD-3#TRPBF
LTC4227CUFD-4#TRPBF
LTC4227IUFD-1#TRPBF
LTC4227IUFD-2#TRPBF
LTC4227IUFD-3#TRPBF
LTC4227IUFD-4#TRPBF
LTC4227CGN-1#TRPBF
LTC4227CGN-2#TRPBF
LTC4227IGN-1#TRPBF
PART MARKING*
42271
42272
42273
42274
42271
42272
42273
42274
42271
42272
42271
PACKAGE DESCRIPTION
20-Lead (4mm × 5mm) Plastic QFN
20-Lead (4mm × 5mm) Plastic QFN
20-Lead (4mm × 5mm) Plastic QFN
20-Lead (4mm × 5mm) Plastic QFN
20-Lead (4mm × 5mm) Plastic QFN
20-Lead (4mm × 5mm) Plastic QFN
20-Lead (4mm × 5mm) Plastic QFN
20-Lead (4mm × 5mm) Plastic QFN
16-Lead Plastic SSOP
16-Lead Plastic SSOP
16-Lead Plastic SSOP
TEMPERATURE RANGE
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
0°C to 70°C
0°C to 70°C
–40°C to 85°C
LTC4227IGN-2#PBF
LTC4227IGN-2#TRPBF
42272
16-Lead Plastic SSOP
–40°C to 85°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 nonstandard 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/
elecTrical characTerisTics
SYMBOL
Supplies
V
IN
I
IN
V
INTVCC
V
INTVCC(UVL)
Input Supply Range
Input Supply Current
Internal Regulator Voltage
Internal V
CC
Undervoltage Lockout
PARAMETER
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 12V, unless otherwise noted.
CONDITIONS
l
l
l
MIN
2.9
TYP
MAX
18
UNITS
V
mA
V
V
mV
2
4.5
2.1
30
5
2.2
60
4
5.6
2.3
90
INTV
CC
Rising
l
l
∆V
INTVCC(HYST)
Internal V
CC
Undervoltage Lockout
Hysteresis
Ideal Diode Control
∆V
FWD(REG)
∆V
DGATE
I
CPO(UP)
I
DGATE(FPU)
I
DGATE(FPD)
I
DGATE2(DN)
t
ON(DGATE)
t
OFF(DGATE)
t
PLH(DGATE2)
Forward Regulation Voltage
(V
INn
– V
SENSE+
)
External N-Channel Gate Drive
(V
DGATEn
– V
INn
)
CPOn Pull-Up Current
DGATEn Fast Pull-Up Current
DGATEn Fast Pull-Down Current
DGATE2 Off Pull-Down Current
DGATEn Turn-On Delay
DGATEn Turn-Off Delay
D2ON
Low to DGATE2 High
IN < 7V, ∆V
FWD
= 0.1V, I = 0, –1µA
IN = 7V to 18V, ∆V
FWD
= 0.1V, I = 0,
–1µA
CPO = IN = 2.9V
CPO = IN = 18V
∆V
FWD
= 0.2V, ∆V
DGATE
= 0V, CPO = 17V
∆V
FWD
= – 0.2V, ∆V
DGATE
= 5V
D2ON
= 2V, ∆V
DGATE2
= 2.5V
∆V
FWD
= 0.2V , C
DGATE
= 10nF
∆V
FWD
= –0.2V , C
DGATE
= 10nF
l
l
l
l
l
10
5
10
–60
–50
25
7
12
–95
–85
–1.5
1.5
40
14
14
–120
–110
mV
V
V
µA
µA
A
A
l
l
l
l
40
100
0.25
0.2
40
200
0.5
0.5
100
µA
µs
µs
µs
422712fa
For more information
www.linear.com/LTC4227
3
LTC4227
elecTrical characTerisTics
SYMBOL
∆V
SENSE(CB)
∆V
SENSE(ACL)
∆V
HGATE
∆V
HGATE(PG)
I
HGATE(UP)
I
HGATE(DN)
I
HGATE(FPD)
t
PHL(SENSE)
t
OFF(HGATE)
t
D(HGATE)
t
P(HGATE)
Input/Output Pin
I
SENSE+
I
SENSE–
V
SENSE+(UVL)
SENSE
+
Input Current
SENSE
–
Input Current
SENSE
+
Undervoltage Lockout
SENSE
+
= 12V
SENSE
–
= 12V
SENSE
+
Rising
l
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 12V, unless otherwise noted.
PARAMETER
Circuit Breaker Trip Sense Voltage
(V
SENSE+
– V
SENSE–
)
Active Current Limit Sense Voltage
(V
SENSE+
– V
SENSE–
)
External N-Channel Gate Drive
(V
HGATE
– V
OUT
)
Gate-Source Voltage for Power Good
External N-Channel Gate Pull-Up Current Gate Drive On, HGATE = 0V
External N-Channel Gate Pull-Down
Current
External N-Channel Gate Fast Pull-Down
Current
Sense Voltage (SENSE
+
– SENSE
–
)
High to HGATE Low
EN
High to HGATE Low
ON Low to HGATE Low
SENSE
+
Low to HGATE Low
ON High,
EN
Low to HGATE Turn-On
Delay
ON to HGATE Propagation Delay
LTC4227-1, LTC4227-2
LTC4227-3, LTC4227-4
ON = Step 0.8V to 2V
Gate Drive Off
OUT = 12V , HGATE = OUT + 5V
Fast Turn-Off
OUT = 12V , HGATE = OUT + 5V
∆V
SENSE
= 300mV, C
HGATE
= 10nF
IN < 7V, I = 0, –1µA
IN = 7V to 18V, I = 0, –1µA
CONDITIONS
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
MIN
47.5
60
4.8
10
3.6
–7
150
100
TYP
50
65
7
12
4.2
–10
300
200
0.5
20
10
10
MAX
52.5
70
14
14
4.8
–13
500
300
1
40
20
20
150
2.4
20
2.2
100
2.05
90
1.26
140
0.65
1.26
1.22
140
±1
1.284
200
–13
1.272
0.25
–125
2.6
2.7
100
4
0.4
UNITS
mV
mV
V
V
V
µA
µA
mA
µs
µs
µs
µs
ms
ms
µs
mA
µA
V
mV
V
mV
V
V
V
mV
µA
V
mV
µA
V
V
µA
µA
%
µA
mA
V
422712fa
Hot Swap Control
50
0.8
100
1.6
10
1.2
10
1.75
10
1.21
40
0.55
1.21
1.07
40
1.185
40
–7
1.198
0.15
–75
1.4
1.4
50
1.9
50
1.235
80
0.6
1.235
1.145
90
0
1.235
110
–10
1.235
0.2
–100
2
2
50
1.9
0.15
∆V
SENSE+(HYST)
SENSE
+
Undervoltage Lockout
Hysteresis
V
ON(TH)
∆V
ON(HYST)
V
ON(RESET)
V
D2ON(H,TH)
V
D2ON(L,TH)
∆V
D2ON(HYST)
I
IN(LEAK)
V
EN(TH)
∆V
EN(HYST)
I
EN(UP)
V
TMR(TH)
I
TMR(UP)
I
TMR(DN)
I
TMR(RATIO)
I
OUT
V
OL
ON Pin Threshold Voltage
ON Pin Hysteresis
ON Pin Fault Reset Threshold Voltage
D2ON
Pin High Threshold
D2ON
Pin Low Threshold
D2ON
Pin Hysteresis
Input Leakage Current (ON,
D2ON)
EN
Pin Threshold Voltage
EN
Pin Hysteresis
EN
Pull-Up Current
TMR Pin Threshold Voltage
TMR Pull-Up Current
TMR Pull-Down Current
TMR Current Ratio I
TMR(DN)
/I
TMR(UP)
OUT Pin Current
Output Low Voltage (FAULT,
PWRGD)
OUT = 11V, IN = 12V, ON = 2V
OUT = 13V, IN = 12V, ON = 2V
I = 1mA
EN
= 1V
TMR Rising
TMR Falling
TMR = 1V, In Fault Mode
TMR = 2V, No Faults
ON =
D2ON
= 5V
EN
Rising
ON Falling
D2ON
Rising
D2ON
Falling
ON Rising
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
4
For more information
www.linear.com/LTC4227
LTC4227
elecTrical characTerisTics
SYMBOL
V
OH
I
OH
I
PU
t
RST(ON)
PARAMETER
Output High Voltage (FAULT,
PWRGD)
Input Leakage Current (FAULT,
PWRGD)
ON Low to
FAULT
High
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 12V, unless otherwise noted.
CONDITIONS
I = –1µA
V = 18V
l
l
l
MIN
TYP
0
MAX
±1
–13
40
UNITS
V
µA
µA
µs
l
INTV
CC
– 1 INTV
CC
– 0.5
Output Pull-Up Current (FAULT,
PWRGD)
V = 1.5V
–7
–10
20
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:
All currents into device pins are positive; all currents out of
the device pins are negative. All voltages are referenced to GND unless
otherwise specified.
Note 3:
An internal clamp limits the DGATE and CPO pins to a minimum of
10V above and a diode below IN. Driving these pins to voltages beyond the
clamp may damage the device.
Note 4:
An internal clamp limits the HGATE pin to a minimum of 10V
above and a diode below OUT. Driving this pin to voltages beyond the
In a dynamic link library's .h file, there is a structure #if defined DLL_EXPORT #define FVFIXED_API __declspec(dllexport) #else #define FVFIXED_API __declspec(dllimport) #endif struct FVFIXED_API CFv...
[i=s] This post was last edited by jameswangsynnex on 2015-3-3 20:02 [/i] Cost-effective DC motor control circuit Recently, in the process of developing new products, a cheap and high-performance DC m...
The SD card itself has two interfaces: SDIO and SPI. The solution provided by TI is the SPI interface driver SLAA281b.
But it has no file system, which is not very convenient when exchanging data with...
Since I need to use two boards and Arduino is easier to use, I plan to use a combination of Arduino and CC2530. However, I am new to this and don't know much about serial communication and wireless co...
I read [url=http://www.hzlitai.com.cn/article/ARM9-article/1685.html][/url] and tried to put the system to sleep; Sometimes it is not working in cache mode. So I modify to jump to ROM area. ldr r6, =0...
According to foreign media reports, Ford Motor has applied to the U.S. Patent and Social Security Administration (USPTO) for a patent for a remote vehicle control system that may be used in future ...[Details]
According to foreign media reports, researchers at the University of Surrey have developed an artificial intelligence system that can accurately locate the location of equipment in densely populate...[Details]
Based on a survey of more than ten intelligent robot companies, this article sorts out and analyzes the current development status of the intelligent industry and the challenges and differences it ...[Details]
With the increasing number of new energy vehicles on the road, the deployment of supporting facilities for these vehicles has accelerated, and new energy vehicles have gradually entered the vision ...[Details]
In the electronics manufacturing industry, surface mount technology (SMT) placement machines are core equipment for production lines. However, with many different models available on the market, ch...[Details]
HTTP is the abbreviation of Hypertext Transfer Protocol. It is an application protocol based on TCP/IP communication protocol used to transmit HTML and image files. It is an application-level objec...[Details]
The range of an electric vehicle is crucial to the driving experience, and range anxiety is a common headache when driving an electric vehicle. Although the latest electric vehicles can achieve a r...[Details]
Shanghai, China, August 21, 2025 –
Toshiba Electronic Devices & Storage Corporation (“Toshiba”) today announced the launch of the TLX9161T
, an automotive photorelay in a compact SO12L-T pa...[Details]
Summer is the peak season for buying and using air conditioners. Do you pay attention to the energy efficiency of your air conditioner? Did you buy a DC inverter air conditioner? Do you know the re...[Details]
When American cartoonist Chester Gould sketched the watch on Dick Tracy's wrist, he had no idea that science fiction would become reality 70 years later. As a comic strip artist, Gould imagined fut...[Details]
Lithium-ion batteries are a key component of electric vehicles. Their high energy density enables them to store a large amount of energy in a relatively compact and lightweight package, which is cr...[Details]
On August 20, Reuters reported that two sources revealed that U.S. Commerce Secretary Howard Lutnick is exploring the possibility of using CHIPS Act funds in exchange for equity stakes in chip manu...[Details]
As a core component of electric vehicles, power batteries, like batteries for other electronic products, inevitably experience degradation after a certain period of use due to their characteristics...[Details]
As my country's industrialization continues to improve, environmental pollution is also facing tremendous pressure. In recent years, national environmental protection policies have become increasin...[Details]
New energy vehicles are a trend and a hot topic in the current automotive market. Driven by enthusiastic promotion from automakers and supported by government policies, these vehicles have seen rap...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
