LTC4310C 데이터 시트보기 (PDF) - Linear Technology
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LTC4310C Datasheet PDF : 20 Pages
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LTC4310-1/LTC4310-2
Electrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
Supplies
VCC
Input Supply Range
l
3
5.5
ICC
Input Supply Current, LTC4310-1
EN = VCC = 5.5V, SDA = SCL = VSDA,SCL(OL) l
Input Supply Current, LTC4310-2
EN = VCC = 5.5V, SDA = SCL = VSDA,SCL(OL) l
6.5
8
7
8.5
ICC(SD)
Shutdown Input Supply Current
EN = 0V, VCC = 5.5V
l
0.1
±10
VCCH(UVL)
Input Supply Undervoltage Lockout
Rising Threshold Voltage
l
2.1
2.4
2.7
VCC(UVL, HYST)
I2C Interface
Input Supply Undervoltage Lockout
Hysteresis
l
90
190
270
VSDA,SCL(OL)
VSDA,SCL(IL,R)
SDA, SCL Logic Low Output Voltage I(SDA,SCL) = 4mA, 500µA; VCC = 3V, 5.5V
SDA, SCL Controlled Rising Edge Rate VCC = 3V, 5.5V (Note 5)
Turn-Off Threshold Voltage
l 310
350
380
l 0.3 • VCC 0.35 • VCC 0.4 • VCC
VSDA,SCL(IL,F)
SDA, SCL Logic Low Falling Input
Threshold Voltage
VCC = 3V
l 0.4 • VCC 0.45 • VCC 0.5 • VCC
ISDA,SCL(OH)
SDA, SCL Input Current
I2C Interface Timing
SDA = SCL = 5.5V; VCC = 0V, 5.5V
l
0
±5
dV/dtRISE
Bus Line Controlled Rising Edge Rate, 0.35V < VBUS < 0.35 • VCC, VCC = 3V
l
0.8
1.16
1.4
LTC4310-1
0.35V < VBUS < 0.35 • VCC, VCC = 5.5V
l
1.5
2.14
2.6
Bus Line Controlled Rising Edge Rate, 0.35V < VBUS < 0.35 • VCC, VCC = 3V
l
2
3
3.9
LTC4310-2
0.35V < VBUS < 0.35 • VCC, VCC = 5.5V
l
3.9
5.4
6.9
tPHL(SDA,SCL)
SDA, SCL High-to-Low Propagation VCC = 5.5V (Note 3)
Delay
l
170
270
fSCL(MAX)
Maximum SCL Clock Frequency
LTC4310-1
LTC4310-2
l 100
l 400
CIN
SCL, SDA Input Capacitance
SCL, SDA = VCC (Note 2)
10
Rise Time Accelerators
VBOOST
SDA, SCL Rise Time Accelerator
Activation Threshold Voltage
VCC = 3V (Note 5)
l 0.32 • VCC 0.45 • VCC 0.5 • VCC
IBOOST
SDA, SCL Rise Time Accelerator
Current
VCC = 3V
l
2
6
READY Open-Drain Output
VREADY(OL)
READY Output Low Voltage
IREADY = 4mA
l
IREADY(OH)
READY Off-Current
READY= VCC = 5.5V, EN = 0V
l
Connection Control
50
400
0.1
±10
VEN,RISE
VEN,FALL
IEN(OH)
tIDLE
tUVLO,EN_FILT
tSTUCK
EN Rising Threshold Voltage
EN Falling Threshold Voltage
EN Input Current
Bus Idle Time
Start-Up Filter Time
SDA, SCL Bus Stuck Low Disconnect
EN = VCC = 5.5V
l
0.6 • VCC 0.9 • VCC
l 0.1 • VCC 0.3 • VCC
l
0.1
±10
l
75
115
155
l 700
900
1200
l
27
37
47
UNITS
V
mA
mA
µA
V
mV
mV
V
V
µA
V/µs
V/µs
V/µs
V/µs
ns
kHz
kHz
pF
V
mA
mV
µA
V
V
µA
µs
µs
ms
431012fa
3
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