APW7083 Ver la hoja de datos (PDF) - Anpec Electronics

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componentes Descripción

Fabricante

APW7083

5A, 26V, 380kHz, Synchronous Step-Down Converter

Anpec Electronics 

APW7083

Electrical Characteristics (Cont.)

Refer to the typical application circuits. These specifications apply over VIN=12V, VOUT=3.3V and TA=-40~85oC, unless

otherwise specified. VCC is regulated by an internal regulator. Typical values are at TA=25oC.

Symbol

Parameter

Test Conditions

CURRENT-MODE PWM CONVERTER (CONT.)

Current-Sense Resistance

High-side Switch Resistance

Low-side Switch Resistance

PROTECTIONS

Between VIN and Exposed Pad,

TJ = 25oC

Between GND and Exposed Pad,

TJ = 25oC

ILIM

P-Channel Power MOSFET

Current-Limit

Peak Current

VUV FB Under-Voltage Threshold

VFB falling

FB Under-Voltage Hysteresis

FB Under-Voltage Debounce

VOV FB Over-Voltage Threshold

VFB Rising

FB Over-Voltage Hysteresis

TOTP Over-Temperature Trip Point

Over-Temperature Hysteresis

TD

Dead-Time

VLX = -0.7V, VIN = 4.5 ~ 26V

SOFT-START, ENABLE, AND INPUT CURRENTS

tSS

Soft-Start Interval

Preceding Delay before Soft-Start

EN Logic Low Voltage

VEN falling, VIN = 4.5 ~ 26V

EN Logic High Voltage

VEN rising, VIN = 4.5 ~ 26V

EN Pin Clamped Voltage

IEN = 10mA

P-Channel Power MOSFET Leakage

Current

VEN = 0V, VLX = 0V, VIN = 26V

IFB

FB Pin Input Current

VFB = 0.8V

IEN

EN Pin Input Current

VEN < 3V

APW7083

Unit

Min.

Typ.

Max.

-

0.12

-

Ω

-

50

80

mΩ

-

20

30

mΩ

6

8

10

A

66

70

74

%

-

40

-

mV

-

2

-

µs

114

118

122

%

-

40

-

mV

-

150

-

oC

-

50

-

oC

-

30

-

ns

-

8

-

ms

-

11

-

ms

-

-

0.5

V

2.1

-

-

V

12

-

17

V

-

-

4

µA

-100

-

+100

µA

-500

-

+500

µA

Copyright © ANPEC Electronics Corp.

5

Rev. A.5 - Sep., 2011

www.anpec.com.tw

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