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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： | 20/24页 |
| 文件大小： | 337K |
| 代理商： | LT2940CDD#PBF |
LT2940
5
2940f
VI (mV)
–200
400
600
200
0
200
–200
–400
800
2940 G01
VV = –8V
–4V
VV = VV+ – VV–
VI = VI+ – VI–
VCC ≥ 11V
VPMON = 0.5V
–2V
0V
2V
8V
4V
I PMON
(μA)
VI (mV)
–200
1
2
0
–1
0
–100
100
200
–2
–3
3
2940 G02
VV = 8V
–4V
|VV VI| ≤ 0.4V
2
TA = 25°C
–2V
0V
2V
4V
E
PMON
(%FS)
ONE REPRESENTATIVE UNIT
TEMPERATURE (°C)
–50
–4
E
PMON
(%FS)
–3
–1
0
1
4
3
0
50
75
–2
2
–25
25
100
125
2949 G03
–8V ≤ VV ≤ 8V
–200mV ≤ VI ≤ 200mV
|VV VI| ≤ 0.4V
2
VCC = 12V
VCC = 80V
VCC = 12V
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 pins are positive, and all voltages are referenced
to GND unless otherwise noted. Current sourced by the PMON pin or the
IMON pin is dened as positive; current sunk as negative.
Note 3: The LT2940 may safely drive its own PMON and IMON output
voltages above the absolute maximum ratings. Do not apply any external
source that drives the voltage above absolute maximum.
Note 4: Full-scale equals ±200μA.
Note 5: V+ and V– pin voltages must each fall within the voltage sense pin
operating range specication.
Note 6: I+ and I– pin voltages must each fall within the current sense pin
operating range specication.
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.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ICMPOUT(LK)
CMPOUT Leakage Current
CMP+ Low, VCC = 36V,
0.4V ≤ VCMPOUT ≤ 36V
l
±0.15
±1
μA
ICMPOUT(OL)
CMPOUT Output Low Voltage
CMP+ Low, ICMPOUT = 3mA
l
0.2
0.4
V
ICMPOUT(LK)
CMPOUT Leakage Current
CMP+ High, VCC = 36V,
0.4V ≤ VCMPOUT ≤ 36V
l
±0.15
±1
μA
tDLY
Comparator Propagation Delay
Output Pulling Down
l
0.7
2
μs
VLATCH(IL)
LATCH Input Low Voltage
l
0.5
0.8
1.2
V
VLATCH(IO)
LATCH Input Open Voltage
l
1.25
1.5
1.95
V
VLATCH(IH)
LATCH Input High Voltage
l
2.0
2.2
2.5
V
ILATCH(LK)
LATCH Input Allowable Leakage in
Open State
l
±10
μA
ILATCH(BIAS)
LATCH Input Bias Current
VLATCH = 0V
l
–11
–17
–23
μA
VLATCH = 80V
l
11
17
23
μA
TYPICAL PERFORMANCE CHARACTERISTICS
PMON Output Current
vs Sense Input Voltages
PMON Total Error
vs Sense Input Voltages
PMON Error Band vs Temperature
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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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