SNOSCS3A – SEPTEMBER 2013 – REVISED OCTOBER 2013
ELECTRICAL CHARACTERISTICS
(continued)
Unless otherwise specified, all limits are ensured at T
A
= T
J
= 25°C, Loop Voltage = 24V.
.
Boldface
limits apply at the
temperature extremes.
Symbol
duty
0.1%
duty
0.8%
LED
BLINK
Parameter
Output duty cycle during short
condition
Output duty cycle during short
condition
LED Blinking Rate
Conditions
During short,
SHORTCKT_DUTY_CYCLE = 0b
During short,
SHORTCKT_DUTY_CYCLE = 1b
Blinking rate of the LED during a
short condition or ECC error
LED_CURRENT = 0b
LED_CURRENT = 1b
Accuracy of the LMP91300 only,
does not include the accuracy of
the NTC
2
4
-2.5
Min
(4)
Typ
(5)
Max
(4)
Units
%
%
Hz
0.1
0.8
2
LED DRIVER
Sink Current
Sink Current
TEMPERATURE SENSOR
Accuracy
1
2.5
°C
2.5
5
3
6
mA
mA
SWIF TIMING
Communication rate
“D” symbol duty cycle: THD/TP
“0” symbol duty cycle: TH0/TP
“1” symbol duty cycle: TH1/TP
1
½
1/4
3/4
10
kbits/s
³0´
TH0
³'´
THD
³1´
TH1
TP
Figure 6. Single-Wire Interface (SWIF) Timing Diagram
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