參數(shù)資料
型號(hào)： LTC4151HDD#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
封裝： 3 X 3 MM, LEAD FREE, PLASTIC, MO-229WEED-2, DFN-10
文件頁數(shù)： 13/18頁
文件大小： 476K
代理商： LTC4151HDD#PBF
LTC4151
4
4151fc
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
INL
Integral Nonlinearity
(SENSE+ – SENSE–)
VIN (Note 5)
ADIN
l
±1
±0.5
±3
±2
LSB
sT
Transition Noise
(SENSE+ – SENSE–)
VIN
ADIN
1.2
0.3
22
VRMS
mVRMS
VRMS
fCONV
Conversion Rate (Continuous Mode)
l
6
7.5
9
Hz
tCONV
Conversion Time (Snapshot Mode)
(SENSE+ – SENSE–)
ADIN, VIN
l
53
26
67
33
85
42
ms
RADIN
ADIN Pin Input Resistance
ADIN = 3V
l
2
10
M
W
IADIN
ADIN Pin Input Current
ADIN = 3V
l
±2
A
I2C Interface
VADR(H)
ADR0, ADR1 Input High Threshold
l
2.3
2.65
2.9
V
VADR(L)
ADRO, ADRI Input Low Threshold
l
0.3
0.6
0.9
V
IADR(IN)
ADRO, ADRI Input Current
ADR0, ADR1 = 0V or 3V
ADR0, ADR1 = 0.8V or 2.2V
l
±8
±70
A
VSDA(OL)
SDA, SDAO, SDAO Output Low Voltage
ISDA, ISDAO, ISDAO = 8mA
l
0.15
0.4
V
ISDA,SCL(IN)
SDA, SDAI, SDAO, SDAO, SCL Input
Current
SDA, SDAI, SDAO, SDAO, SCL = 5V
l
0
±2
A
VSDA,SCL(TH)
SDA, SDAI, SCL Input Threshold
l
1.6
1.8
2
V
VSDA,SCL(CL)
SDA, SDAI, SCL Clamp Voltage
ISDA, ISDAI, ISCL = 3mA
l
5.5
6.1
6.6
V
I2C Interface Timing (Note 4)
fSCL(MAX)
Maximum SCL Clock Frequency
400
kHz
tLOW
Minimum SCL Low Period
0.65
1.3
s
tHIGH
Minimum SCL High Period
50
600
ns
tBUF(MIN)
Minimum Bus Free Time Between Stop/
Start Condition
0.12
1.3
s
tHD,STA(MIN)
Minimum Hold Time After (Repeated) Start
Condition
140
600
ns
tSU,STA(MIN)
Minimum Repeated Start Condition Set-Up
Time
30
600
ns
tSU,STO(MIN)
Minimum Stop Condition Set-Up Time
30
600
ns
tHD,DATI(MIN)
Minimum Data Hold Time Input
–100
0
ns
tHD,DATO(MIN) Minimum Data Hold Time Output
300
600
900
ns
tSU,DAT(MIN)
Minimum Data Set-Up Time Input
30
100
ns
tSP(MAX)
Maximum Suppressed Spike
Pulse Width
50
110
250
ns
tRST
Stuck-Bus Reset Time
SCL or SDA/SDAI Held Low
20
33
ms
CX
SCL, SDA Input Capacitance
5
10
pF
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: Internal clamps limit the SCL, SDA (LTC4151) and SDAI
(LTC4151-1/LTC4151-2) pins to a minimum of 5.5V. Driving these pins to
voltages beyond the clamp may damage the part. The pins can be safely
tied to higher voltages through a resistor that limits the current below
5mA.
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN is from 7V to 80V, unless noted. (Note 3)
Note 3: All currents into pins are positive. All voltages are referenced to
GND, unless otherwise noted.
Note 4: Guaranteed by design and not subject to test.
Note 5: Integral nonlinearity and total unadjusted error of VIN are tested
between 7V and 80V.
Note 6: Offset error of VIN is defined by extrapolating the straight line
measured between 7V and 80V.
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