MIC2555 查看數據表（PDF） - Micrel
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MIC2555 Datasheet PDF : 29 Pages
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Micrel, Inc.
MIC2555
Absolute Maximum Ratings(1)
Power Supply Voltage:
VBAT, GPIO- ................................................. -0.3V to +6.0V
VDD_LGC ......................................... –0.3V to +6.0V and ≤ VBAT
USB Bus Voltage
VBUS ......................................................................–0.3V to +6.0V
VDD_LGC .........................................–0.3V to +6.0V and ≤ VBUS
Voltage On Any Other Pin............................ –0.3V to +4.5V
Current Into/Out of Any Pin .......................................±10mA
Junction Temperature ................................................ 150°C
Storage Temperature ................................. –65°C to +150°C
ESD Ratings:..............................................VBUS, D+, D–, ID
Human Body Model .............................................. 15 kV
ESD Ratings:................................................... All other pins
Human Body Model ................................................ 2 kV
Operating Ratings(2)
Power Supply Voltage:
VBUS.......................................................... 4.4V to 5.25V
VBAT ............................................................ 3.0V to 4.5V
Operating Temperature................................ –40°C to +85°C
Package Thermal Resistance .................................. 49°C/W
Electrical Characteristics(3)
Test condition is 25°C unless otherwise specified. Bold indicates -40°C + 85°C,
VBAT = 3.6V, VDD_LGC = 3.6V, VBUS = 5.0V, VTRM = 1µF, C+ = 0.22µF, C++ = 220µF, CVBUS = 10µF
Symbol
Parameter
Condition
Min
Typ
Power Supplies
VBAT
System Supply Voltage
VDD_LGC
Logic Supply Voltage
VTRM
Termination Voltage (internal
supply voltage)
ITRM ≤ 2.5mA, 3.0 < VBAT < 3.6V
3.0
1.6
2.8
3.3
IBAT_PD
System Supply Current
Power Down mode
13
IBAT_SUS
System Supply Current
Suspend mode
140
IBAT_FS_I
System Supply Current
Full Speed, Idle, D+ ≥ 2.8V, D- ≤ 0.3V, IVBUS
= 0mA
2.8
IBAT_FS_HC
System Supply Current
Full Speed Transmitting 12Mb/s,
CLOAD ≤ 350pF on D+, D-, IVBUS = 0mA
17
IBAT_FS_LC
System Supply Current
Full Speed Transmitting 12Mb/s,
CL = 50pF on D+,D-, IVBUS = 0mA
2.5
IBAT_LS_HC
System Supply Current
Low Speed Transmitting 1.5Mb/s,
CL = 350pF on D+,D-, IVBUS = 0mA
6.5
IVBUS_S
Current drawn by System
from VBUS
Suspend mode, OE_INT/ = 1
80
IVDD_LGC
Current drawn by System for
core logic
OE_INT/ = 1
7
Charge Pump and VBUS
VBUS_ OUT
Voltage Output to VBUS
IVBUS
VBUS Output Current
RVBUS_PU
B device SRP Pull-up
Resistor on VBUS
RVBUS_PD
B device SRP Pull-down
Resistor on VBUS
IBUS = 10mA, VBAT = 3.0V
4.4V ≤ VBUS ≤ 5.25V
Pull-up voltage = VTRM
Pull-down to GND
4.4
5.0
10
27
281 1300
675 2300
Max Units
4.5
V
VBAT
V
3.6
V
20
µA
250
µA
5.0
mA
40
mA
6
mA
12
mA
100
µA
15
µA
5.25
V
mA
7500
Ω
7500
Ω
June 2005
5
M9999-060805
(408) 955-1690
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