DS2480 Datasheet, PDF (25/26 Pages) Dallas Semiconductor – Serial 1.Wire Line Driver

DS2480
ABSOLUTE MAXIMUM RATINGS*
Voltage on 1–W to Ground
Voltage on RXD, TXD, POL to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
–0.5V to +14.0V
–0.5V to +7.0V
–40°C to +85°C
–55°C to +125°C
260°C for 10 seconds
* This is a stress rating only and functional operation of the device at these or any other conditions above those
indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods of time may affect reliability.
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN
Supply Voltage
Programming Voltage
Operating Current
Idle Current on V_PP
Active Pull–up Timer Threshold
Active Pull–up On Threshold
1–Wire Input High
1–Wire Input Low
TXD/POL input resistor
TXD/POL input levels
TXD/POL input levels
1–Wire weak pull–up current
1–Wire active pull–up current
Strong pull–up voltage drop
@ 10 mA load on 1–W
V_CC
V_PP
I_DD
I_PP
V_IAPTO
V_IAPO
V_IH1
V_IL1
R_I
V_IH
V_IL
I_WEAKPU
I_ACTPU
∆V_STRPU
4.5
11.75
V_DD–1.4
3.4
30
2.7
1.5
9
Programming voltage drop
@ 10 mA load on 1–W
∆V_PROG
RXD sink current @ 0.4V
I_OLR
6
RXD source current @ V_DD–0.4V
I_OHR
–4
Power On Reset Trip Point
V_POR
VPP Sensor Trip Point
V_PPTRIP
CAPACITANCES
PARAMETER
SYMBOL MIN
TXD/POL input capacitance
1–Wire input capacitance
C_IN
C_IN1
(V_DD = 4.5V to 5.5V;–40°C to 85°C)
TYP
MAX
UNITS NOTES
5.0
5.5
V
12.25
V
1
3.0
5.0
mA
20
µA
2
V_DD–1.1
V
0.95
1.2
V
V
1.8
V
kΩ
3
V
0.8
V
3.0
5.0
mA
15
mA
0.6
V
4
0.24
V
5
mA
mA
3.3
V
9.5
V
(t_A = 25°C)
TYP
MAX
UNITS NOTES
5
pF
10
pF
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