Micrel, Inc. MIC2555
December 2006 5
M9999-121406
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 Typ Max Units
Power Supplies
V
BAT
System Supply Voltage
3.0
4.5
V
V
DD_LGC
Logic Supply Voltage
1.6
V
BAT
V
V
TRM
Termination Voltage (internal
supply voltage)
I
TRM
2.5mA, 3.0 < V
BAT
< 3.6V
2.8
3.3
3.6
V
I
BAT_PD
System Supply Current Power Down mode 13
20
µA
I
BAT_SUS
System Supply Current Suspend mode 140
250
µA
I
BAT_FS_I
System Supply Current
Full Speed, Idle, D+ 2.8V, D- 0.3V, I
VBUS
= 0mA
2.8
5.0
mA
I
BAT_FS_HC
System Supply Current
Full Speed Transmitting 12Mb/s,
C
LOAD
350pF on D+, D-, I
VBUS
= 0mA
17
40
mA
I
BAT_FS_LC
System Supply Current
Full Speed Transmitting 12Mb/s,
C
L
= 50pF on D+,D-, I
VBUS
= 0mA
2.5
6
mA
I
BAT_LS_HC
System Supply Current
Low Speed Transmitting 1.5Mb/s,
C
L
= 350pF on D+,D-, I
VBUS
= 0mA
6.5
12
mA
I
VBUS_S
Current drawn by System
from V
BUS
Suspend mode, OE_INT/ = 1 80
100
µA
I
VDD_LGC
Current drawn by System for
core logic
OE_INT/ = 1 7
15
µA
Charge Pump and V
BUS
V
BUS_ OUT
Voltage Output to V
BUS
I
BUS
= 10mA, V
BAT
= 3.0V
4.4
5.0
5.25
V
I
VBUS
V
BUS
Output Current 4.4V V
BUS
5.25V
10
27
mA
R
VBUS_PU
B device SRP Pull-up
Resistor on V
BUS
Pull-up voltage = V
TRM
281
1300
7500
R
VBUS_PD
B device SRP Pull-down
Resistor on V
BUS
Pull-down to GND 675 2300
7500
