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参数资料
| 型号： | LT2940CDD#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12 |
| 封装： | 3 X 3 MM, LEAD FREE, PLASTIC, DFN-12 |
| 文件页数： | 19/24页 |
| 文件大小： | 337K |
| 代理商： | LT2940CDD#PBF |
LT2940
4
2940f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VPMON
Power Monitor Output Compliance Voltage
VCC ≤ 12V, IPMON ≥ 0μA
l
0VCC – 4.5
V
12V < VCC < 30V, IPMON ≥ 0μA
l
0
7.5
V
VCC ≥ 30V, IPMON ≥ 0μA
l
012
V
VCC ≤ 12V, IPMON < 0μA
l
0.5
VCC – 4.5
V
12V < VCC < 30V, IPMON < 0μA
l
0.5
7.5
V
VCC ≥ 30V, IPMON < 0μA
l
0.5
12
V
EPMON
Power Monitor Output Total Error (Note 4)
|VV VI| ≤ 0.4V2
±2
±5
%FS
|VV VI| ≤ 0.4V2, 25°C < TA ≤ 85°C
±2.5
±7
%FS
|VV VI| ≤ 0.4V2, LT2940C
l
±2.5
±9
%FS
|VV VI| ≤ 0.4V2, LT2940I
l
±3.5
±12
%FS
Quadrants I and III of Shaded Region
in Figure 4
l
±5
±15
%FS
KPMON
Power Monitor Scaling Coefcient
IPMON = KPMON VV VI
|VV VI| = 0.4V2
l
485
500
515
μA /V2
VV(OSP)
Power Monitor Voltage Sense Input-Referred
Offset Voltage
VV = 0V
l
±40
±100
mV
VI(OSP)
Power Monitor Current Sense Input-Referred
Offset Voltage
VI = 0mV
l
±2
±6
mV
IPMON(OS)
Power Monitor Output Offset Current
VV– = 0V, VI = 0mV
l
±6
±15
μA
BWPMON
Power Monitor Output Bandwidth
RPMON = 2k
0.5
MHz
Current Monitor (Note 2)
IIMON(FS)
Current Monitor Output Current Operating
Range
l
±200
μA
VIMON
Current Monitor Output Compliance Voltage
VCC ≤ 12V, IIMON ≥ 0μA
l
0VCC – 4.5
V
12V < VCC < 30V, IIMON ≥ 0μA
l
0
7.5
V
VCC ≥ 30V, IIMON ≥ 0μA
l
012
V
VCC ≤ 12V, IIMON < 0μA
l
0.5
VCC – 4.5
V
12V < VCC < 30V, IPMON < 0μA
l
0.5
7.5
V
VCC ≥ 30V, IPMON < 0μA
l
0.5
12
V
EIMON
Current Monitor Output Total Error (Note 4)
|VI| ≤ 200mV, 25°C ≤ TA ≤ 85°C
±1.5
±3
%FS
|VI| ≤ 200mV, LT2940C
l
±2
±3.5
%FS
|VI| ≤ 200mV, LT2940I
l
±2
±4
%FS
200mV < |VI| ≤ 225mV
l
±2.5
±5
%FS
GIMON
Current Monitor Scaling, IIMON = GIMON VI
VI = ±200mV
l
975
1000
1025
μA /V
VI(OSI)
Current Monitor Current Sense Input-Referred
Offset Voltage
l
±2.5
±7
mV
BWIMON
Current Monitor Output Bandwidth
RIMON = 2k
1
MHz
Comparator
VCMP(TH)
Comparator Threshold Voltage
CMP+ Rising
l
1.222
1.240
1.258
V
ΔVCMP(HYST)
Comparator Threshold Hysteresis
CMP+ Falling
l
–15
–35
–60
mV
ICMP(BIAS)
Comparator Input Bias Current
1V ≤ VCMP+ ≤ 1.5V
l
±100
±300
nA
ICMPOUT(OL)
CMPOUT Output Low Voltage
CMP+ High, ICMPOUT = 3mA
l
0.2
0.4
V
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. All specications apply at 6V ≤ VCC ≤ 80V, unless otherwise specied.
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相关代理商/技术参数 |
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| LT2940CMS | 制造商:LINER 制造商全称:Linear Technology 功能描述:Power and Current Monitor |
| LT2940CMS#PBF | 功能描述:IC CURRENT/POWER MONITOR 12MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 标准包装:1 系列:- 应用:手持/移动设备 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-LLP-EP（4x4） 包装:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名称:LP3905SD-30DKR |
| LT2940CMS#PBF | 制造商:Linear Technology 功能描述:IC POWER AND CURRENT MONITOR MSOP-12 |
| LT2940CMS#TRPBF | 功能描述:IC POWER/CURRENT MONITOR 12MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 标准包装:1 系列:- 应用:手持/移动设备 电流 - 电源:- 电源电压:3 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-WFDFN 裸露焊盘 供应商设备封装:14-LLP-EP（4x4） 包装:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名称:LP3905SD-30DKR |
| LT2940CMSPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Power and Current Monitor |
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