參數(shù)資料
型號: LTC4261IGN#TRPBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 電源管理
英文描述: Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring; Package: SSOP; No of Pins: 28; Temperature Range: -40°C to +85°C
中文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO28
封裝: 0.150 INCH, LEAD FREE, PLASTIC, SSOP-28
文件頁數(shù): 29/34頁
文件大小: 357K
代理商: LTC4261IGN#TRPBF
LTC4261/LTC4261-2
4
42612fc
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Timer
VTMR(H)
TMR Pin High Threshold
VTMR Rising
l
2.43
2.56
2.69
V
VTMR(L)
TMR Pin Low Threshold
VTMR Falling
l
40
75
110
mV
ITMR(UP)
TMR Pin Pull-Up Current
Turn-On and Auto-Retry (Except OC) Delays,
VTMR = 0.2V
l
–7
–10
–13
A
Power Good, PGI Check and OC Auto-Retry
Delays, VTMR = 0.2V
l
–3.5
–5
–6.5
A
ITMR(DN)
TMR Pin Pull-Down Current
Delays Except PGI Check or OC Auto-Retry,
VTMR = 2.56V
l
6
12
20
mA
PGI Check and OC Auto-Retry Delays,
VTRM = 2.56V
l
3
5
7
A
Output Pins
VPWRGD
PG, PGIO Pins Output Low
IPG, IPGIO = 3mA
IPG, IPGIO = 500A
l
0.8
0.15
1.6
0.4
V
IPWRGD
PG, PGIO Pins Leakage Current
PG, PGIO = 80V
l
0
±10
A
ADC
Resolution (No Missing Codes)
(Note 5)
l
10
Bits
INL
Integral Nonlinearity
SENSE
l
±0.5
±2.5
LSB
ADIN2/OV, ADIN
l
±0.25
±1.25
LSB
VOS
Offset Error
SENSE
l
±1.75
LSB
ADIN2/OV, ADIN
l
±1.25
LSB
Full-Scale Voltage
SENSE
l
62.8
64
65.2
mV
ADIN2/OV, ADIN
l
2.514
2.560
2.606
V
Total Unadjused Error
SENSE
l
±1.8
%
ADIN2/OV, ADIN
l
±1.6
%
Conversion Rate
l
5.5
7.3
9
Hz
RADIN
ADIN, ADIN2 Pins Input Resistance
ADIN, ADIN2 = 1.28V
l
2
10
M
W
IADIN
ADIN, ADIN2 Pins Input Current
ADIN, ADIN2 = 2.56V
l
0
±2
A
I2C Interface
VADR(H)
ADR0, ADR1 Input High Threshold
l
INTVCC
– 0.8
INTVCC
– 0.5
INTVCC
– 0.3
V
VADR(L)
ADR0, ADR1 Input Low Threshold
l
0.3
0.5
0.8
V
IADR(IN)
ADR0, ADR1 Input Current
ADR0, ADR1 = 0V, 5V
l
±80
A
ADR0, ADR1 = 0.8V, (INTVCC – 0.8V)
l
±10
A
VALERT(OL)
ALERT Pin Output Low Voltage
IALERT = 4mA
l
0.2
0.4
V
VSDAO(OL)
SDAO Pin Output Low Voltage
ISDAO = 4mA
l
0.2
0.4
V
ISDAO,ALERT(IN)
SDAO, ALERT Input Current
SDAO, ALERT = 5V
l
0
±5
A
VSDAI,SCL(TH)
SDAI, SCL Input Threshold
l
1.6
1.8
2
V
ISDAI,SCL(IN)
SDAI, SCL Input Current
SDAI, SCL = 5V
l
0
±2
A
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at IIN = 5mA, TA = 25°C. (Note 2)
ELECTRICAL CHARACTERISTICS
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LTC4261IUFD-2 制造商:LINER 制造商全稱:Linear Technology 功能描述:Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring