首页 > 器件类别 >

L4995K

LDO Regulator Pos 5V 0.5A Automotive 24-Pin PowerSSO EP Tube

厂商名称:ST(意法半导体)

厂商官网:http://www.st.com/

下载文档
L4995K 在线购买

供应商:

器件:L4995K

价格:-

最低购买:-

库存:点击查看

点击购买

器件参数
参数名称
属性值
欧盟限制某些有害物质的使用
Compliant with Exemption
ECCN (US)
EAR99
Part Status
Active
SVHC
Yes
SVHC Exceeds Threshold
Yes
类型
Type
LDO
Number of Outputs
1
Polarity
Positive
Accuracy (%)
±2
输出类型
Output Type
Fixed
Output Voltage (V)
5
Maximum Output Current (A)
0.5
Maximum Dropout Voltage @ Current (V)
0.5@400mA
Line Regulation
25mV
Load Regulation
25mV
Junction to Ambient
38K/W
Junction to Case
4K/W
Special Features
Thermal Shutdown Protection|Short Circuit Protection
Minimum Operating Temperature (°C)
-40
Maximum Operating Temperature (°C)
150
Supplier Temperature Grade
Extended
系列
Packaging
Tube
Supplier Package
PowerSSO EP
Pin Count
24
Standard Package Name
PowerSSO
Mounting
Surface Mount
Package Height
2.35(Max)
Package Length
10.5(Max)
Package Width
7.6(Max)
PCB changed
24
Lead Shape
Gull-wing
参考设计
展开全部 ↓
文档预览
L4995
Automotive 5V, 500mA low drop voltage regulator
Datasheet
-
production data
Wide temperature range (Tj = -40 °C to 150 °C)
Enable input for enabling/disabling the voltage
regulator
P w rS O 2
o e S -1
P w rS O 4
o e S -2
Description
L4995 is a family of monolithic integrated 5 V
voltage regulators with a low drop voltage at
currents of up to 500 mA, available in both 12 and
24 pin packages.
The output voltage regulating element consists of
a p-channel MOS and regulation is performed
regardless of input voltage transients of up to 40V.
The high precision of the output voltage is
obtained using a pre-trimmed reference voltage.
The L4995 family is protected against short circuit
and overtemperature protection switches off the
devices in the case of extremely high power
dissipation. The L4995 integrates the watchdog,
enable and externally programmable reset
circuits. The L4995A features the externally
programmable reset and enable. Finally the
L4995R features the externally programmable
reset.
The combination of such features makes this
device particularly flexible and suitable to supply
microprocessor systems in automotive
applications.
Features
Max DC supply voltage
Max output voltage tolerance
Max dropout voltage
Output current
Quiescent current
1. Typical value with regulator disabled
V
S
V
o
V
dp
I
o
I
qn
40V
+/-2%
500mV
500mA
3µA
(1)
AEC-Q100 qualified
Operating DC supply voltage
range 5.6 V to 31 V
Low dropout voltage
Low quiescent current consumption
Reset circuit sensing of output voltage down to
1V
Programmable reset pulse delay with external
capacitor
Programmable watchdog timer with external
capacitor
Thermal shutdown and short circuit protection
Table 1. Device summary
Package
PowerSSO-12 (exposed pad)
PowerSSO-24 (exposed pad)
P/N
L4995J - L4995K
L4995AJ - L4995AK
L4995RJ - L4995RK
Order codes
Tube
L4995J - L4995AJ - L4995RJ
L4995K - L4995AK - L4995RK
Watchdog
X
-
-
Reset
X
X
X
Tape and reel
L4995JTR - L4995AJTR - L4995RJTR
L4995KTR - L4995AKTR - L4995RKTR
Enable
X
X
-
September 2018
This is information on a product in full production.
DS5053 Rev 15
1/37
www.st.com
Contents
L4995
Contents
1
2
Block diagrams and pins descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1
2.2
2.3
2.4
2.5
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Test circuit and waveforms plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.5.1
Load regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.1
3.2
3.3
Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4
Package and PCB thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1
4.2
PowerSSO-12 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
PowerSSO-24 thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5
Package and packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.1
5.2
5.3
5.4
ECOPACK
®
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
PowerSSO-24 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
PowerSSO-12 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
PowerSSO-24 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2/37
DS5053 Rev 15
L4995
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pins descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Enable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
PowerSSO-12 thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
PowerSSO-24 thermal parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
PowerSSO-12 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
PowerSSO-24 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
DS5053 Rev 15
3/37
3
List of figures
L4995
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
Figure 33.
Figure 34.
Figure 35.
Figure 36.
Figure 37.
Figure 38.
Figure 39.
Figure 40.
Figure 41.
Figure 42.
Figure 43.
Figure 44.
Block diagram of L4995 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Block diagram of L4995A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Block diagram of L4995R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pins configurations (L4995) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Output voltage vs T
j
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Output voltage vs V
S
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Drop voltage vs output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Current consumption vs output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Current consumption vs input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Current limitation vs T
j
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Current limitation vs input voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Short circuit current vs input voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Output voltage vs enable voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
V
En_high
vs T
j
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
V
EN_LOW
vsT
j
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
V
Rhth
vsT
j
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
V
Rlth
vs T
j
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
V
whth
vs T
j
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
V
wlth
vs T
j
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
I
cr
and I
cwc
vs T
j
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
I
dr
and I
cwd
vs T
j
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
T
wop
vs T
j
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
PSRR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Load regulation test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Maximum load variation response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
L4995 application schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Stability region . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Behavior of output current versus regulated voltage V
o
. . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Reset timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Watchdog timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
PowerSSO-12 PC board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Rthj-amb vs PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 22
PowerSSO-12 thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . 23
Thermal fitting model of Vreg in PowerSSO-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
PowerSSO-24 PC board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Rthj-amb vs PCB copper area in open box free air condition . . . . . . . . . . . . . . . . . . . . . . 25
PowerSSO-24 thermal impedance junction ambient single pulse . . . . . . . . . . . . . . . . . . . 26
Thermal fitting model of V
reg
in PowerSSO-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PowerSSO-12 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
PowerSSO-24 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
PowerSSO-12 tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
PowerSSO-12 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
PowerSS0-24 tube shipment (no suffix) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
PowerSSO-24 tape and reel shipment (suffix “TR”) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4/37
DS5053 Rev 15
Block diagrams and pins descriptions
L4995
1
Block diagrams and pins descriptions
Figure 1. Block diagram of L4995
Figure 2. Block diagram of L4995A
6/37
DS5053 Rev 15
查看更多>
参数对比
与L4995K相近的元器件有:L4995RKTR、L4995AJ、L4995AKTR、L4995RJTR、L4995RJ、L4995J、L4995AJTR、L4995JTR、L4995KTR。描述及对比如下:
型号 L4995K L4995RKTR L4995AJ L4995AKTR L4995RJTR L4995RJ L4995J L4995AJTR L4995JTR L4995KTR
描述 LDO Regulator Pos 5V 0.5A Automotive 24-Pin PowerSSO EP Tube LDO Regulator Pos 5V 0.5A Automotive 24-Pin PowerSSO EP T/R LDO Regulator Pos 5V 0.5A Automotive 12-Pin PowerSSO EP Tube LDO Regulator Pos 5V 0.5A Automotive 24-Pin PowerSSO EP T/R LDO Regulator Pos 5V 0.5A Automotive 12-Pin PowerSSO EP T/R LDO Regulator Pos 5V 0.5A Automotive 12-Pin PowerSSO EP Tube LDO Regulator Pos 5V 0.5A Automotive 12-Pin PowerSSO EP Tube LDO Regulator Pos 5V 0.5A Automotive 12-Pin PowerSSO EP T/R LDO Regulator Pos 5V 0.5A Automotive 12-Pin PowerSSO EP T/R LDO Regulator Pos 5V 0.5A Automotive 24-Pin PowerSSO EP T/R
Brand Name - STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics - STMicroelectronics STMicroelectronics STMicroelectronics
厂商名称 - ST(意法半导体) ST(意法半导体) ST(意法半导体) ST(意法半导体) ST(意法半导体) - ST(意法半导体) ST(意法半导体) ST(意法半导体)
零件包装代码 - SSOP SSOP SSOP SSOP SSOP - SSOP SSOP SSOP
包装说明 - SSOP-24 SSOP-12 SSOP-24 SSOP-12 SSOP-12 - SSOP-12 SSOP-12 SSOP-24
针数 - 24 12 24 12 12 - 12 12 24
Reach Compliance Code - not_compliant not_compliant not_compliant not_compliant not_compliant - not_compliant not_compliant not_compliant
ECCN代码 - EAR99 EAR99 EAR99 EAR99 EAR99 - EAR99 EAR99 EAR99
Factory Lead Time - 30 weeks 15 weeks 30 weeks 15 weeks 15 weeks - 15 weeks 15 weeks 30 weeks
可调性 - FIXED FIXED FIXED FIXED FIXED - FIXED FIXED FIXED
最大回动电压 1 - 0.5 V 0.5 V 0.5 V 0.5 V 0.5 V - 0.5 V 0.5 V 0.5 V
标称回动电压 1 - 0.5 V 0.5 V 0.5 V 0.5 V 0.5 V - 0.5 V 0.5 V 0.5 V
最大绝对输入电压 - 40 V 40 V 40 V 40 V 40 V - 40 V 40 V 40 V
最大输入电压 - 31 V 31 V 31 V 31 V 31 V - 31 V 31 V 31 V
最小输入电压 - 5.6 V 5.6 V 5.6 V 5.6 V 5.6 V - 5.6 V 5.6 V 5.6 V
JESD-30 代码 - R-PDSO-G24 R-PDSO-G12 R-PDSO-G24 R-PDSO-G12 R-PDSO-G12 - R-PDSO-G12 R-PDSO-G12 R-PDSO-G24
JESD-609代码 - e3 e3 e3 e3 e3 - e3 e3 e3
长度 - 10.3 mm 4.9 mm 10.3 mm 4.9 mm 4.9 mm - 4.9 mm 4.9 mm 10.3 mm
最大电网调整率 - 0.025% 0.025% 0.025% 0.025% 0.025% - 0.025% 0.025% 0.025%
最大负载调整率 - 0.025% 0.025% 0.025% 0.025% 0.025% - 0.025% 0.025% 0.025%
湿度敏感等级 - 3 3 3 3 3 - 3 3 3
功能数量 - 1 1 1 1 1 - 1 1 1
输出次数 - 1 1 1 1 1 - 1 1 1
端子数量 - 24 12 24 12 12 - 12 12 24
工作温度TJ-Max - 150 °C 150 °C 150 °C 150 °C 150 °C - 150 °C 150 °C 150 °C
工作温度TJ-Min - -40 °C -40 °C -40 °C -40 °C -40 °C - -40 °C -40 °C -40 °C
最大输出电流 1 - 0.5 A 0.5 A 0.5 A 0.5 A 0.5 A - 0.5 A 0.5 A 0.5 A
最大输出电压 1 - 5.1 V 5.1 V 5.1 V 5.1 V 5.1 V - 5.1 V 5.1 V 5.1 V
最小输出电压 1 - 4.9 V 4.9 V 4.9 V 4.9 V 4.9 V - 4.9 V 4.9 V 4.9 V
标称输出电压 1 - 5 V 5 V 5 V 5 V 5 V - 5 V 5 V 5 V
封装主体材料 - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 - HSSOP HLSSOP HSSOP HLSSOP HLSSOP - HLSSOP HLSSOP HSSOP
封装等效代码 - SOP12,.25,32 SOP24,.4,32 SOP12,.25,32 SOP24,.4,32 SOP24,.4,32 - SOP24,.4,32 SOP24,.4,32 SOP12,.25,32
封装形状 - RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR - RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 - SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE, SHRINK PITCH - SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH
包装方法 - TAPE AND REEL TUBE TAPE AND REEL TAPE AND REEL TUBE - TAPE AND REEL TAPE AND REEL TAPE AND REEL
峰值回流温度(摄氏度) - 260 260 260 260 260 - 260 260 260
认证状态 - Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified - Not Qualified Not Qualified Not Qualified
调节器类型 - FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR - FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
座面最大高度 - 2.47 mm 1.62 mm 2.47 mm 1.62 mm 1.62 mm - 1.62 mm 1.62 mm 2.47 mm
表面贴装 - YES YES YES YES YES - YES YES YES
技术 - BICMOS BICMOS BICMOS BICMOS BICMOS - BICMOS BICMOS BICMOS
端子面层 - Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) - Matte Tin (Sn) Tin (Sn) Tin (Sn)
端子形式 - GULL WING GULL WING GULL WING GULL WING GULL WING - GULL WING GULL WING GULL WING
端子节距 - 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm - 0.8 mm 0.8 mm 0.8 mm
端子位置 - DUAL DUAL DUAL DUAL DUAL - DUAL DUAL DUAL
处于峰值回流温度下的最长时间 - 30 30 30 30 30 - 30 30 30
最大电压容差 - 2% 2% 2% 2% 2% - 2% 2% 2%
宽度 - 7.5 mm 3.9 mm 7.5 mm 3.9 mm 3.9 mm - 3.9 mm 3.9 mm 7.5 mm
Base Number Matches - 1 1 1 1 1 - 1 1 1
超级电容的极性怎么确定
想用超级电容对比测试不同情况下的功耗问题,由于是测试使用,没有提太多要求,就让采购随便买了,5.5V...
jishuaihu 综合技术交流
430的IO口不接任何东西的时候的存在模拟电压吗?
430的P6.0IO口是AD转换的0号通道,如果不接任何电路器件,那么这个IO口的模拟电压是多少?...
chen502 微控制器 MCU
IGBT模块驱动及保护技术
IGBT模块驱动及保护技术 蒋怀刚,李乔,何志伟 (华南理工大学雅达电源实验室,广东 广州 51...
zbz0529 电源技术
什么基础偶极子天线
教科书上科普百遍不如体验一遍 今天我们就借助射频微波比较先进流行的EDA软件 ANSYS HI...
btty038 RF/无线
NXP下载问题
有人会用NXP LPC1768吗,小弟遇到个很棘手的问题:用JTAG下载程序时出现如下的情况fil...
虹桥一瞥 NXP MCU
推动CPD普及的因素
推动CPD普及的因素包括以下几个主要因素: 政策法规的推动:欧盟、中国和美国等地的相关法...
btty038 RF/无线
热门器件
热门资源推荐
器件捷径:
S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY
需要登录后才可以下载。
登录取消