AP3019A Просмотр технического описания (PDF) - BCD Semiconductor

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AP3019A

WHITE LED STEP-UP CONVERTER

BCD Semiconductor 

Data Sheet

WHITE LED STEP-UP CONVERTER

AP3019A

Electrical Characteristics

VIN =3V, VCTRL=3V, TA =25°C, unless otherwise specified.

Parameter

Symbol

Conditions

Minimum Operating Voltage

Maximum Operating Voltage

Feedback Voltage (Note 2)

FB Pin Bias Current

Quiescent Current

Shutdown Quiescent Current

Switching Frequency

VIN (min)

VIN (max)

VFB

IFB

IOUT=20mA, 4 LEDs,

TA=-40oC to 85oC

IQ

VFB=VIN, no switching

ISHDN

VCTRL=0V

f

Maximum Duty Cycle

Switch Current Limit (Note 3)

DMAX

ILIMIT

D=40%

D=80%

Switch VCE Saturation Voltage

Switch Leakage Current

CTRL Pin Voltage

VCESAT

VCTRL

ISW=250mA

VSW=5V

High

low

CTRL Pin Bias Current

OVP Voltage

Schottky Forward Drop

Schottky Leakage Current

Soft Start Time

ICTRL

VOV

VDROP

t

ID=150mA

VR(reverse voltage)=23V

VR(reverse voltage)=27V

Thermal Resistance

(Junction to Case)

SOT-23-6

θJC

TSOT-23-6

Min

2.5

188

1.5

2.0

0.9

90

1.8

Typ

200

35

2.5

4.0

1.2

93

550

550

360

0.01

100

30

0.7

0.1

300

60

60

Max Unit

V

16

212

mV

100

nA

3.2

mA

6.0

µA

1.5 MHz

%

mA

mV

5

µA

V

0.5

µA

V

V

4

µA

150

µS

°C/W

Note 2: The bold type specifications of full temperature range are guaranteed by design (GBD).

Note 3: The switch current limit is related to duty cycle. Please refer to Figure 15 for detail.

Mar. 2010 Rev. 1.7

BCD Semiconductor Manufacturing Limited

5

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