Rainbow-electronics MAX3345E Bedienungsanleitung PDF herunterladen (Seite 3)

MAX3344E/MAX3345E

±15kV ESD-Protected USB Transceivers

in UCSP with USB Detect

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(V

CC

= 4V to 5.5V bypassed with 1µF to GND, GND = 0, V

L

= 1.65V to 3.6V, ENUM = V

L

, T

A

= T

MIN

to T

MAX

, unless otherwise

noted. Typical values are at V

CC

= 5V, V

L

= 2.5V, T

A

= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS

MIN

TYP

MAX

UNITS

Input Leakag e C ur r ent

S U SP , MOD E , E N UM , OE, VM O, V P O = 0 or

V

L

±1 µA

USB-SIDE I/O

Output-Voltage Low V

OL

R

L

= 1.5kΩ from D+ or D- to 3.6V 0.3 V

Output-Voltage High V

OH

R

L

= 15kΩ from D+ and D- to GND 2.8 3.6 V

Input Impedance Z

IN

Three-state driver, ENUM = 0, V

D_

= 0 or

+3.6V

1MΩ

S i ng l e- E nd ed Inp ut- V ol tag e H i g h

V

IH

2.0 V

S i ng l e- E nd ed Inp ut- V ol tag e Low V

IL

0.8 V

Receiver Single-Ended

Hysteresis

V

HYS

200

mV

Differential Input Sensitivity V

DIFF

200

mV

Input Common-Mode Voltage

Range

V

CM

0.8 2.5 V

Driver Output Impedance R

OUT

4.6

16.0

Ω

Internal Pullup Resistor R

PU

1.410 1.500 1.540

kΩ

V

USBLH1

MAX3344E 4.0

V

USBHL1

MAX3344E 3.6

V

USBLH2

MAX3345E 2.8

USB_DET Threshold

V

USBHL2

MAX3345E 1

V

USB_DET Hysteresis V

USBHYS

MAX3344E 25 mV

LINEAR REGULATOR

External Capacitor C

OUT

Compensation of linear regulator 1 µF

ESD PROTECTION (V

CC

, D+, D-)

Human Body Model

±15

kV

IE C 1000- 4- 2 Ai r - Gap D i schar g e

±10

kV

IE C 1000- 4- 2 C ontact D i schar g e ±8 kV

TIMING CHARACTERISTICS

(V

CC

= 4V to 5.5V, GND = 0, V

L

= 1.65V to 3.6V, ENUM = V

L

, T

A

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

V

CC

= 5V, V

L

= 2.5V, T

A

= +25°C.) (Figures 2–6) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

TRANSMITTER

OE to Transmit Delay Enable Time t

PZD

Figures 2 and 6c 20 ns

OE to Driver Three-State Delay

Driver Disable Time

t

PDZ

Figures 2 and 6c 20 ns

t

PLH1

(

drv

)

MODE = high, Figures 4 and 6b 10 18

VPO/VMO to D+/D- Propagation

Delay

t

PHL1

(

drv

)

MODE = high, Figures 4 and 6b 10 18

ns

t

PLH0

(

drv

)

MODE = low, Figures 3 and 6c 11 20

VPO/VMO D+/D- Propagation

Delay

t

PHL0

(

drv

)

MODE = low, Figures 3 and 6c 11 20

ns

1 2 3 4 5 6 7 8 ... 14 15

MAX3344E/MAX3345E 1

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