Rainbow-electronics MAX1563 Instrukcja Użytkownika Pobierz pdf (Strona 3)

MAX1562/MAX1562H/MAX1563

Programmable 4A USB Current-Limited

Switches with Autoreset and Fault Blanking

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ELECTRICAL CHARACTERISTICS (continued)

= +5V, C

= 1µF, C

OUT

= 4.7µF, T

= 0°C to +85°C, unless otherwise noted. Typical values are at T

= +25°C.)

PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS

Output Fall Time t

FALL

OUT

= 2Ω, C

OUT

= 4.7µF

(from 90% to10% of V

OUT

)

0.8 ms

Thermal-Shutdown Threshold 15°C hysteresis +160 °C

ON, ON, SEL Input High Level V

= +4V to +5.5V 2 V

ON, ON, SEL Input Low Level V

= +4V to +5.5V 0.8 V

ON, ON, SEL Input

Leakage Current

-1 +1 µA

FAULT Output Low Voltage V

SINK

= 1mA, V

= +4V 0.4 V

FAULT Output

High Leakage Current

= V

FAULT

= +5.5V 1 µA

OUT Autoreset Current In latched-off state, V

OUT

= 0 10 25 45 mA

OUT Autoreset Threshold In latched-off state, OUT rising 0.35 0.5 0.65 V

OUT Autoreset Blanking Time In latched-off state, V

OUT

> 0.5V 10 20 35 ms

ELECTRICAL CHARACTERISTICS

= +5V, C

= 1µF, C

OUT

= 4.7µF, T

= -40°C to +85°C, unless otherwise noted.) (Note 2)

PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS

Supply Voltage Range V

4.0 5.5 V

Switch On-Resistance R

50 mΩ

Standby Supply Current Switch disabled 10 µA

Quiescent Supply Current I

Switch enabled, I

OUT

= 0 80 µA

OUT Off-Leakage Current I

LKG

Switch disabled, V

OUT

= 0 10 µA

UVLO Threshold V

UVLO

Rising edge, 3% hysteresis 2.9 3.8 V

MAX1563 1 4

Continuous Current-Limit Adjust

Range

MAX1562/MAX1562H 1 3

ISET

= 4.22kΩ (MAX1563 only) 3.1 4.9

ISET

= 5.76kΩ 2.3 3.7

ISET

= 8kΩ 1.6 2.7

Continuous Current Limit I

LIM

- V

OUT

= 0.5V

ISET

= 12kΩ 1.0 1.8

ISET

= 5.76kΩ 2.4 4.8

Short-Circuit Current Limit I

LIM

OUT

= 0,

OUT

pulsing

ISET

= 12kΩ 1.1 2.4

A(peak)

Continuous Current-Limit

Blanking Timeout Period

From continuous current-limit condition to

FAULT asserted

10 35 ms

Short-Circuit Blanking Timeout

Period

From short-circuit current-limit condition to

FAULT asserted

7.5 35 ms

1 2 3 4 5 6 7 8 ... 11 12

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