Micrel, Inc.
MIC2555
Absolute Maximum Ratings
(1)
Power Supply Voltage:
V
BAT, GPIO-
................................................. -0.3V to +6.0V
V
DD_LGC
.........................................
–0.3V to +6.0V and
≤
V
BAT
USB Bus Voltage
V
BUS
......................................................................
–0.3V to +6.0V
V
DD_LGC
.........................................
–0.3V to +6.0V and
≤
V
BUS
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:..............................................V
BUS
, D+, D
–
, ID
Human Body Model .............................................. 15 kV
ESD Ratings:................................................... All other pins
Human Body Model ................................................ 2 kV
Operating Ratings
(2)
Power Supply Voltage:
V
BUS
.......................................................... 4.4V to 5.25V
V
BAT
............................................................ 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,
V
BAT
= 3.6V, V
DD_LGC
= 3.6V, V
BUS
= 5.0V, V
TRM
= 1µF, C+ = 0.22µF, C++ = 220µF, C
VBUS
= 10µF
Symbol
Parameter
Condition
Min
3.0
1.6
I
TRM
≤
2.5mA, 3.0 < V
BAT
< 3.6V
Power Down mode
Suspend mode
Full Speed, Idle, D+
≥
2.8V, D-
≤
0.3V, I
VBUS
= 0mA
Full Speed Transmitting 12Mb/s,
C
LOAD
≤
350pF on D+, D-, I
VBUS
= 0mA
Full Speed Transmitting 12Mb/s,
C
L
= 50pF on D+,D-, I
VBUS
= 0mA
Low Speed Transmitting 1.5Mb/s,
C
L
= 350pF on D+,D-, I
VBUS
= 0mA
Suspend mode, OE_INT/ = 1
OE_INT/ = 1
2.8
3.3
13
140
2.8
17
2.5
6.5
80
7
Typ
Max
4.5
V
BAT
3.6
20
250
5.0
40
6
12
100
15
Units
V
V
V
µA
µA
mA
mA
mA
mA
µA
µA
Power Supplies
V
BAT
System Supply Voltage
V
DD_LGC
V
TRM
I
BAT_PD
I
BAT_SUS
I
BAT_FS_I
I
BAT_FS_HC
I
BAT_FS_LC
I
BAT_LS_HC
I
VBUS_S
I
VDD_LGC
Logic Supply Voltage
Termination Voltage (internal
supply voltage)
System Supply Current
System Supply Current
System Supply Current
System Supply Current
System Supply Current
System Supply Current
Current drawn by System
from V
BUS
Current drawn by System for
core logic
Voltage Output to V
BUS
V
BUS
Output Current
B device SRP Pull-up
Resistor on V
BUS
B device SRP Pull-down
Resistor on V
BUS
Charge Pump and V
BUS
V
BUS_ OUT
I
VBUS
R
VBUS_PU
R
VBUS_PD
I
BUS
= 10mA, V
BAT
= 3.0V
4.4V
≤
V
BUS
≤
5.25V
Pull-up voltage = V
TRM
Pull-down to GND
4.4
10
281
675
5.0
27
1300
2300
7500
7500
5.25
V
mA
Ω
Ω
June 2005
5
M9999-060805
(408) 955-1690
MICREL [ MICREL SEMICONDUCTOR ]
