L3383-31-AB3-R Просмотр технического описания (PDF) - Unisonic Technologies

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L3383-31-AB3-R

PFM CONTROLLED, STEP-UP DC/DC CONVERTERS (VARIABLE DUTY RATIO)

Unisonic Technologies 

L3383

CMOS IC

ELECTRICAL CHARACTRISTICS(Cont.)

UTC L3383-3.2V (IOUT=30mA)

PARAMETER

SYMBOL TEST CONDITIONS

Output Voltage

VOUT L, SD, CL etc. connected

Maximum Input Voltage

VIN

Oscillation Start-up Voltage

VST IOUT=1mA

Oscillation Hold Voltage

VHLD IOUT=1mA

Lx Limit Voltage

VLxLMT Same as IDD. Fosc>Fosc1×2

No-Load Input Current

IIN IOUT=0mA (Note 1)

Supply Current 1(Note 2)

Supply Current 2

IDD1 VIN=VOUT×0.95

IDD2 VIN=VOUT+0.5V

Lx Leakage Current

ILXL No external components, VOUT=VLx=10V.

Lx Switch-On Resistance

RSWON Same as IDD1. VLx=0.4V

Duty Ratio 1

DTY1 Same as IDD1. Measuring of Lx waveform

Duty Ratio 2

DTY2 IOUT=1mA. Measuring of Lx on-time

Efficiency

EFFI L, SD, CL etc. connected

Maximum Oscillation Frequency Fosc1 Same as IDD1. 75% duty

Fosc2 Same as IDD1. 45% duty

For 5-Pins package Only

CE Voltage

High

Low

VCEH

VCEL

Same as IDD1.

Existence of Lx Oscillation.

Same as IDD1.

Disappearance of Lx Oscillation

CE ”High” Current

High

Low

ICEH Same as IDD1. VCE=VOUT×0.95

ICEL Same as IDD1. VCE=0V

Stand-by Current

ISTB Same as IDD1.

MIN

3.120

0.70

0.7

70

40

150

100

0.75

TYP

3.200

0.80

4.67

20.9

2.13

4.96

75

45

80

180

120

MAX

3.280

10

0.90

1.1

9.34

41.8

4.26

1.0

7.54

80

50

210

130

0.20

0.25

-0.25

0.5

UNIT

V

V

V

V

V

µA

µA

µA

µA

Ω

%

%

%

kHz

kHz

V

V

µA

µA

µA

UTC L3383-3.3V (IOUT=30mA)

PARAMETER

SYMBOL

TEST CONDITIONS

Output Voltage

VOUT L, SD, CL etc. connected

Maximum Input Voltage

VIN

Oscillation Start-up Voltage

VST IOUT=1mA

Oscillation Hold Voltage

VHLD IOUT=1mA

Lx Limit Voltage

VLxLMT Same as IDD. Fosc>Fosc1×2

No-Load Input Current

IIN IOUT=0mA (Note 1)

Supply Current 1(Note 2)

Supply Current 2

Lx Leakage Current

IDD1 VIN=VOUT×0.95

IDD2 VIN=VOUT+0.5V

ILXL No external components, VOUT=VLx=10V.

Lx Switch-On Resistance

RSWON Same as IDD1. VLx=0.4V

Duty Ratio 1

DTY1 Same as IDD1. Measuring of Lx waveform

Duty Ratio 2

DTY2 IOUT=1mA. Measuring of Lx on-time

Efficiency

EFFI L, SD, CL etc. connected

Maximum Oscillation Frequency Fosc1 Same as IDD1. 75% duty

Fosc2 Same as IDD1. 45% duty

For 5-Pins package Only

CE Voltage

High

Low

VCEH

VCEL

Same as IDD1.

Existence of Lx Oscillation.

Same as IDD1.

Disappearance of Lx Oscillation

CE ”High” Current

High

Low

ICEH Same as IDD1. VCE=VOUT×0.95

ICEL Same as IDD1. VCE=0V

Stand-by Current

ISTB Same as IDD1.

MIN

3.218

0.70

0.7

70

40

150

100

0.75

TYP

3.300

0.80

4.705

21.5

2.145

4.84

75

45

80

180

120

MAX

3.383

10

0.90

1.1

9.41

43

4.29

1.0

7.36

80

50

210

130

0.20

0.25

-0.25

0.5

UNIT

V

V

V

V

V

µA

µA

µA

µA

Ω

%

%

%

kHz

kHz

V

V

µA

µA

µA

UNISONIC TECHNOLOGIES CO., LTD

www.unisonic.com.tw

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