AAT1500 データシートの表示（PDF） - Advanced Analog Technology, Inc.

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AAT1500

CONSTANT CURRENT BOOST CONVERTER FOR 1 TO 4 WHITE LEDS

Advanced Analog Technology, Inc. 

Advanced Analog Technology, Inc.

DISSIPATION RATINGS

CHARACTERISTICS

Package Thermal Resistance

Power Dissipation, TC = 25 ° C

PACKAGE

SOT23-6

VSON8

SOT23-6

VSON8

SYMBOL

θ JA

θ JA

Pd

Pd

July 2008

AAT1500

VALUE

208

50

0.48

2

UNIT

° C /W

° C /W

W

W

ELECTRICAL CHARACTERISTICS

( VDD = 3.6 V, TC = 25 ° C , unless otherwise specified.)

Operating Condition

PARAMETER

Supply Voltage

Under Voltage Lockout

Operating Current

Quiescent Current

Shutdown Current

SYMBOL

VDD

VUVLO

IDD

IQ

ISD

TEST CONDITION

VDD = 5.5V, Switch on

VDD = 5.5V

VFB = 1.3V, Switch off

VDD = 5.5V, VEN < 0.4V

Oscillator

PARAMETER

Operating Frequency

Maximum Duty Cycle

SYMBOL

fOSC

DMAX

TEST CONDITION

MIN TYP MAX UNIT

2.6

4.5

V

1.8 2.2 2.3

V

2

mA

250 500 µA

0.1

1

µA

MIN TYP MAX UNIT

0.8 1.0 1.2 MHz

79 85 92

%

Reference Voltage

PARAMETER

SYMBOL

TEST CONDITION

MIN TYP MAX UNIT

Feedback Voltage

VIE

Note

0.237 0.250 0.263 V

Note: To measure the feedback voltage, the device VIE would connect to the application circuit. The inductance is

10 µH and the output voltage equals 12V.

– 台灣類比科技股份有限公司 –

– Advanced Analog Technology, Inc. –

Version 1.00

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