APW7071 Просмотр технического описания (PDF) - Anpec Electronics

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APW7071

White LED DC/DC Step-Up Converter

Anpec Electronics 

APW7071

Absolute Maximum Ratings

Symbol

Vin

FB

SHDN

SW

TJ

TSTG

Parameter

Supply voltage

Feedback Voltage

Shutdown Voltage

Switch Voltage

Junction Temperature Range

Storage Temperature Range

Recommend Operating Conditions

Rating

Unit

7

V

7

V

7

V

20

V

150

°C

-40 to +150

°C

Symbol

Vin

Vsw

L

Cin

Cout

Ta

Tj

Parameter

Input supply voltage

Switch voltage

Inductor

Input capacitor

Output capacitor

Operating ambient temperature

Operating junction temperature

Value

Min. Typ. Max.

Unit

2.4

6.0

V

Vin

18

V

4.7

µH

4.7

µF

0.1

µF

-40

85

°C

-40

125

°C

Electrical Characteristics

V =2.4V, EN=V T =-40°C to +85°C, typical values are at T =+25°C (unless otherwise noted)

IN

IN, A

A

Symbol

Parameter

Test Condition

Supply Voltage and Current

Vin Input Voltage Range

Iq

Operating quiescent current

Iout=0, not switching,

VFB=0.3V

Isd Shutdown current

SHDN=GND

UVLO Under-Voltage Lockout threshold

Under-Voltage Lockout

hysteresis

ENABLE

VIH SHDN high level input voltage

VIL SHDN low level input voltage

Ii

SHDN input leakage current

Power Switch and Current limit

Vsw Maximum switching voltage

toff Minimum off-time

SHDN=GND or VIN

ton Maximum on-time

Rds,on MOSFET on-resistance

Vin=2.4V, Isw=200mA

MOSFET leakage current

Vsw=20V

ILIM MOSFET current limit

APW7071

Min. Typ. Max. Unit

2.4

6

V

70 90 µA

0.1

1

µA

2.1

2.3 V

100

mV

1.3

V

0.4 V

0.1

1

µA

20

V

350 400 500 ns

4

6

7.5 µs

600 1000 mΩ

1

10 µA

350 400 450 mA

Copyright © ANPEC Electronics Corp.

3

Rev. A.1 - Feb., 2006

www.anpec.com.tw

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