Datasheet

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TPS23841
SLUS745A – NOVEMBER 2006 – REVISED MAY 2007
ELECTRICAL CHARACTERISTICS (continued)
V48 = 48 V, R
T
= 124 k Ω , C
T
= 220 pF, C
INT
= 0.027 µ F (low leakage), –40 ° C to 125 ° C and T
A
= T
J
(unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Digital I
2
C DC Specifications
SCL, SDA_I, A1–A5 ,WD_DIS,
ALTA/B, MS, PORB logic input 1.5 V
threshold
SCL, SDA_I input hysteresis 250
mV
MS, PORB input hysteresis 150
WD_DIS, ALTA/B, MS, PORB input
Input voltage 0.5 to 3 V 50 k Ω
pulldown resistance
A1–A5 pull-down current 10 µ A
SDA_O logic high leakage Drain = 5 V 100 nA
SDA_O logic low I
SINK
= 10 mA 200 mV
INTB logic high leakage Drain = 6 V 10 µ A
INTB logic low I
SINK
= 10 mA 200 mV
Digital I
2
C Timing
SCL clock frequency 0 400 kHz
SCL high 0.6
Pulse duration
SCL low 1.3
Rise time, SCL to SDA 0.300
Fall time, SCL to SDA 0.300
Setup time, SDA to SCL 0.250
µ s
Hold time, SCL to SDA 0.300 0.900
Bus free time between start and stop 1.3
Setup time, SCL to start condition 0.6
Hold time, start condition to SCL 0.6
Setup time, SCL to stop condition 0.6
6
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