Datasheet

MAX3301E/MAX3302E
USB On-the-Go Transceivers and Charge Pumps
4 _______________________________________________________________________________________
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3V to +4.5V, V
L
= +1.65V to +3.6V, C
FLYING
= 100nF, C
VBUS
= 1µF, ESR
CVBUS
= 0.1Ω (max), T
A
= T
MIN
to T
MAX
, unless
otherwise noted. Typical values are at V
CC
= +3.7V, V
L
= +2.5V, T
A
= +25°C.) (Note 2)
PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS
Switching Frequency f
SW
390 kHz
V
BUS
Leakage Voltage V
VBUS_DRV
= 0 0.2 V
V
BUS
Rise Time
C
VBUS
= 10µF, I
VBUS
= 8mA, measured
from 0 to +4.4V
100 ms
V
BUS
Pulldown Resistance
V
VBUS_DISCHRG
= 1, V
VBUS_DRV
= 0,
V
VBUS_CHRG
= 0
3.8 5 6.5 kΩ
V
BUS
Pullup Resistance
V
VBUS_CHRG
= 1, V
VBUS_DRV
= 0,
V
VBUS_DISCHRG
= 0
650 930 1250 Ω
V
BUS
Input Impedance Z
INVBUS
V
VBUS_DISCHRG
= 0, V
VBUS_DRV
= 0,
V
VBUS_CHRG
= 0
40 70 100 kΩ
COMPARATOR SPECIFICATIONS
V
B U S
V al i d C om p ar ator Thr eshol d V
TH-VBUS
4.4 4.6 4.8 V
V
B U S
V al i d C om p ar ator H yster esi sV
HYS-VBUS
50 mV
Session-Valid Comparator
Threshold
V
TH-
SESS_VLD
0.8 1.4 2.0 V
Session-End Comparator
Threshold
V
TH-
SESS_END
0.2 0.5 0.8 V
dp_hi Comparator Threshold 0.8 1.3 2.0 V
dm_hi Comparator Threshold 0.8 1.3 2.0 V
cr_int Pulse Width 750 ns
cr_int Comparator Threshold 0.4 0.5 0.6 V
ID_IN SPECIFICATIONS
ID_IN Input Voltage for Car Kit
0.2 x
V
CC
0.8 x
V
CC
V
ID_IN Input Voltage for A Device
0.1 x
V
CC
V
ID_IN Input Voltage for B Device
0.9 x
V
CC
V
ID_IN Input Impedance Z
ID_IN
70 100 130 kΩ
ID_IN Input Leakage Current ID_IN = V
CC
-1 +1 µA
ID_IN Pulldown Resistance id_pulldown = 1 150 300 Ω
TERMINATING RESISTOR SPECIFICATIONS (D+, D-)
D+ Pulldown Resistor dp_pulldown = 1 14.25 15 15.75 kΩ
D- Pulldown Resistor dm_pulldown = 1 14.25 15 15.75 kΩ
D+ Pullup Resistor dp_pullup = 1 1.425 1.5 1.575 kΩ
D- Pullup Resistor dm_pullup = 1 1.425 1.5 1.575 kΩ