Rainbow-electronics MAX3301E Manual de usuario descargar pdf (Pagina 4)

MAX3301E

USB On-the-Go Transceiver and Charge Pump

4 _______________________________________________________________________________________

DC ELECTRICAL CHARACTERISTICS (continued)

= +3V to +4.5V, V

= +1.65V to +3.6V, C

FLYING

= 100nF, C

VBUS

= 1µF, ESR

CVBUS

= 0.1Ω (max), T

= T

MIN

to T

MAX

, unless

otherwise noted. Typical values are at V

= +3.7V, V

= +2.5V, T

= +25°C.) (Note 2)

PARAMETER

SYM B O L

CONDITIONS

MIN

TYP

MAX

UNITS

Switching Frequency f

390

kHz

BUS

Leakage Voltage vbus_drv = 0 0.2 V

BUS

Rise Time

VBUS

= 10µF, I

VBUS

= 8mA, measured

from 0 to +4.4V

100 ms

BUS

Pulldown Resistance

vb us_d ischrg = 1, vb us_d r v = 0, vb us_chr g = 0

3.8 5 6.5 kΩ

BUS

Pullup Resistance

vb us_chr g = 1, vb us_d r v = 0, vbus_di schr g = 0 650 930 1250

Ω

BUS

Input Impedance

INVBUS

vb us_d ischrg = 0, vb us_d r v = 0, vb us_chr g = 0

40 70 100 kΩ

COMPARATOR SPECIFICATIONS

B U S

V al i d C om p ar ator Thr eshol d

TH-VBUS

4.4 4.6 4.8 V

B U S

V al i d C om p ar ator H yster esi s

HYS-VBUS

50 mV

Session-Valid Comparator

Threshold

TH-

SESS_VLD

0.8 1.4 2.0 V

Session-End Comparator

Threshold

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

cr_int Comparator Threshold 0.4 0.5 0.6 V

ID_IN SPECIFICATIONS

ID_IN Input Voltage for Car Kit

0.2 x

0.8 x

ID_IN Input Voltage for A Device

0.1 x

ID_IN Input Voltage for B Device

0.9 x

ID_IN Input Impedance Z

ID_IN

100

130 kΩ

ID_IN Input Leakage Current ID_IN = V

-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

15.75

kΩ

D- Pulldown Resistor dm_pulldown = 1

14.25

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

1 2 3 4 5 6 7 8 9 ... 32 33

MAX3301E 1

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Rainbow-electronics MAX3301E Manual de usuario Pagina 4

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