March 2005 3 M9999-031805
MIC2550 Micrel, Inc.
Absolute Maximum Ratings (Note 1)
Supply Voltage (V
IF
) ................................................... +6.5V
Input Voltage (V
BUS
) ........................ –0.5V(min)/5.5V(max)
Output Current (I
D+
, I
D–
)...........................................±50mA
Output Current (all others) .......................................±15mA
Input Current ............................................................±50mA
Power Dissipation (P
D
) ................................................ TBD
Storage Temperature (T
S
) ......................... –65° to +150°C
ESD, Note 3
V
BUS
, D+, D– ......................................................... ±10kV
All other pins ........................................................... ±2kV
Operating Ratings (Note 2)
Supply Voltage (V
BUS
) ................................. 4.0V to 5.25V
Temperature Range (T
A
) ........................... –40°C to +85°C
Junction Temperature (T
J
) ........................................ 160°C
Package Thermal Resistance
TSSOP (θ
JA
) ..................................................... 100°C/W
Electrical Characteristics (Note 8)
T
A
= 25°C, bold values indicate –40°C ≤ T
A
≤ +85°C; typical values at V
BUS
= 5.0V, V
IF
= 3.0V; minimum and maximum values at
V
BUS
= 4.0V to 5.25V, V
IF
= 2.5V to 3.6V; unless noted.
Symbol Parameter Condition Min Typ Max Units
System and USB Interface DC Characteristics
V
BUS
USB Supply Voltage 4.0 5.25 V
V
IF
System I/F Supply Voltage 2.5 5.25 V
V
IL
Low-Level Input Voltage, Note 4 0.15V
IF
V
V
IH
High-Level Input Voltage, Note 4 0.85V
IF
V
V
OH
High-Level Output Voltage, Note 4 I
OH
= 20µA 0.9V
IF
V
V
OL
Low-Level Output Voltage, Note 4 I
OL
= 20µA 0.1 V
I
IL
Input Leakage Current, Note 4 ±5 µA
Symbol Parameter Conditions Min Typ Max Units
SPD SUS OE# Voltage Load
101 1 5 µA
100 1 5 µA
001 1 5 µA
I
IF
VIF Supply Current 0 0 0 VBUS = 5.25V 1 5 µA
010 VIF = 3.6V 1 5 µA
100f = 6MHz CLOAD 325 650 µA
= 50 pF, Note 7
f = 750kHz
000 CLOAD = 600 pF 40 75 µA
Note 7
101 800 1100 µA
100 3000 5000 µA
001 230 350 µA
000 400 700 µA
I
VBUS
VBUS Supply Current 0 1 0 VBUS = 5.25V 130 200 µA
100 VIF = 3.6V f = 6MHz CLOAD 7.3 10 mA
= 50 pF, Note 7
f = 750kHz
000 CLOAD = 600 pF 3.6 5 mA
Note 7
V
TRM
Termination Voltage I
TRM
= 2.5mA 3.0 3.6 V
ESD Protection
IEC-1000-4-2 Air Discharge 10 pulses ±6kV
(D+, D–, Contact Discharge 10 pulses ±6kV
V
BUS
only)
