DS2760 データシートの表示（PDF） - Dallas Semiconductor -> Maxim Integrated
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DS2760 Datasheet PDF : 25 Pages
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ELECTRICAL CHARACTERISTICS:
1-WIRE INTERFACE
PARAMETER
SYMBOL MIN
Time Slot
tSLOT
60
Recovery Time
tREC
1
Write 0 Low Time
tLOW0
60
Write 1 Low Time
tLOW1
1
Read Data Valid
tRDV
Reset Time High
tRSTH
480
Reset Time Low
tRSTL
480
Presence Detect High
tPDH
15
Presence Detect Low
tPDL
60
SWAP timing pulse width
tSWL
0.2
SWAP timing pulse
tSWOFF
0
falling edge to DC release
SWAP timing pulse rising tSWON
0
edge to DC engage
DQ Capacitance
CDQ
DS2760
(-20°C to 70°C; 2.5V ≤ VDD ≤ 5.5V)
TYP
MAX UNITS NOTES
120
µs
µs
120
µs
15
µs
15
µs
µs
960
µs
60
µs
240
µs
480
µs
1
µs
12
1
µs
12
25
pF
NOTES
1. All voltages are referenced to VSS.
2. See “Ordering Information” section of datasheet to determine corresponding part number for each
VOV value.
3. Internal current sense resistor configuration.
4. External current sense resistor configuration.
5. Self heating due to output pin loading and sense resistor power dissipation can alter the reading from
ambient conditions.
6. Voltage offset measurement is with respect to VOV at 25°C.
7. Although the Current Register is large enough to report values higher than 1.8A, internal
compensation for sense resistor process variation and temperature effects can reduce the maximum
reportable current to as low as 1.8A.
8. Requires in-system calibration by user.
9. This spec excludes the effects of temperature on the sense resistor. The DS2760 compensates for the
internal sense resistor’s temperature coefficient of 4000 ppm/°C to an accuracy of ±500 ppm/°C. The
DS2760 does not attempt to compensate for the characteristics of an external sense resistor. Error
terms arising from the use of an external sense resistor should be taken into account when calculating
total current measurement error.
10. Typical value for tERR is at 3.6V and 25°C.
11. 4 year data retention at 70°C.
12. Typical load capacitance on DC and CC is 100 pF.
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