LTM2884Y 데이터 시트보기 (PDF) - Linear Technology
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LTM2884Y Datasheet PDF : 24 Pages
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LTM2884
Electrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, VBUS = 5V, GND = GND2 = 0V, ON = VLO, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Power Supply
VCC
Operating Supply Range (Isolated Power Input)
VBUS
Operating Supply Range (USB Bus Power Input)
VCC Supply Current Power Off
ICC
VCC Supply Current Power On
VBUS Supply Current Power Off
IBUS
VBUS Supply Current Power On
VBUS Supply Current Suspend Mode
ON = 0V, VCC = 4.4V to 16.5V
ICC2 = 0mA, Figure 1
ON = 0V
IVLO = 0mA, Figure 1
SPNDPWR = 3.3V
USB Suspend Timeout
SPNDPWR = 0,
USB Suspend Timeout
l 4.4
12
16.5
V
l 4.4
5
16.5
V
l
100 500
µA
l
50
100
mA
l
10
100
µA
l
6
9
mA
l
500
µA
l
1.5
2.0
mA
VCC2
Regulated VCC2 Output Voltage, Loaded
VCC2 Source Current High Power Mode
VCC2 Source Current Bus Power Mode
VLO
VLO Regulated Output Voltage
VLO Output Voltage Maximum Current
VLO2
VLO2 Regulated Output Voltage
VLO2 Output Voltage Maximum Current
USB Input Levels (D1+, D1–, D2+, D2–)
VCC = 4.4V, ICC2 = 200mA, Figure 1 l 4.75
5
5.25
V
VCC = 8.6V, ICC2 = 500mA, Figure 1 l 4.75
5
5.25
V
VCC = 8.6V, Figure 1
l 500
mA
VCC = VBUS = 4.4V, Figure 1
l 200
mA
IVLO = 0mA to 10mA, Figure 1
l 3.15
3.3
3.45
V
Figure 1
l
10
mA
IVLO2 = 0mA to 10mA, Figure 1
l 3.15
3.3
3.45
V
Figure 1
l
10
mA
VIH
Single-Ended Input High Voltage
VIL
Single-Ended Input Low Voltage
VHYS
Single-Ended Input Hysteresis
VDIFF
Differential Input Sensitivity
VCM
Common Mode Voltage Range
Logic Input Levels (ON, SPNDPWR)
l 2.0
V
l
0.8
V
200
mV
|(D1+ – D1–)| or |(D2+ – D2–)|
l 0.2
V
|(D1+ + D1–)|/2 or |(D2+ + D2–)|/2 l 0.8
2.5
V
VIHL
Logic Input High Voltage
VILL
Logic Input Low Voltage
IINL
Logic Input Current
VHYSL
Logic Input Hysteresis
USB Output Levels (D1+, D1–, D2+, D2–)
l 2.0
V
l
0.8
V
l
±1
µA
200
mV
VOL
Output Low Voltage
RPU = 1.5k to 3.6V, Figure 4
l
0
0.3
V
VOH
Output High Voltage
RPD = 15k to 0V, Figure 4
l 2.8
3.6
V
VCRS
Differential Output Signal Cross-Point Voltage
l 1.3
2.0
V
Terminations
RPU
Bus Pull-Up Resistance on Upstream Facing Port
D2+ or D2– Pull-Up to 3.3V
RPD
Bus Pull-Down Resistance on Downstream Facing Port D2+ and D2– Pull-Down to GND2
1.425
14.25
1.575
kΩ
15.75
kΩ
ZDRV
USB Driver Output Resistance
l 28
44
Ω
CINUSB USB Transceiver Pad Capacitance to GND
(Note 2)
10
pF
2884f
For more information www.linear.com/LTM2884
3
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