NCV47821_17 datasheet(5/15 Pages) ONSEMI

부품명	NCV47821

상세설명	Adjustable Dual LDO with Adjustable Current Limit and Diagnostic Features

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NCV47821

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Table 6. ELECTRICAL CHARACTERISTICS Vin = 13.5 V, VEN1,2 = 3.3 V, VDE = 0 V, RCSO1,2 = 0 W, CCSO1,2 = 1 mF, Cin = 1 mF,

Cout1,2 = 10 mF, Min and Max values are valid for temperature range −40°C v TJ v +150°C unless noted otherwise and are guaranteed

by test, design or statistical correlation. Typical values are referenced to TJ = 25°C (Note 8)

Parameter

Test Conditions

Symbol

Min

Typ

Max

Unit

REGULATOR OUTPUTS

Output Voltage (Accuracy %) (Note 9)

Vin = Vin_min to 40 V

Iout1,2 = 5 mA to 200 mA

Vout1,2

−3

−

+3

%

Line Regulation (Note 9)

Vin = Vin_min to (Vout_nom1,2 + 20 V)

Iout1,2 = 5 mA

Regline1,2

−

0.1

1.0

%

Load Regulation

Vin = (Vout_nom1,2 + 8.5 V)

Iout1,2 = 5 mA to 200 mA

Regload1,2

−

0.4

1.4

%

Dropout Voltage (Note 10)

Vout_nom1,2 = 5 V, Iout1,2 = 200 mA

VDO1,2 = Vin − Vout1,2

VDO1,2

−

250

500

mV

DISABLE AND QUIESCENT CURRENTS

Disable Current

VEN1,2 = 0 V, Vout_nom1,2 = 5 V,

−40

°C v TJ v +125°C

IDIS

−

0.1

10

mA

Quiescent Current, Iq = Iin − (Iout1 +Iout2) Iout1 = Iout2 = 500 mA, Vin = (Vout_nom + 8.5 V)

Iq

−

0.6

1.0

mA

Quiescent Current, Iq = Iin – (Iout1 +Iout2) Iout1 = Iout2 = 200 mA, Vin = (Vout_nom + 8.5 V)

Iq

−

15.5

25

mA

CURRENT LIMIT PROTECTION

Current Limit

Vout1,2 = 0.9 x Vout_nom1,2

Vin = (Vout_nom1,2 + 8.5 V)

ILIM1,2

300

−

mA

PSRR & NOISE

Power Supply Ripple Rejection (Note 11) f = 100 Hz, 0.5 Vp−p1,2

PSRR1,2

−

75

−

dB

Output Noise Voltage (Note 11)

f = 10 Hz to 100 kHz, Cb1,2 = 10 nF

Vn1,2

−

137

−

mVrms

ENABLE

Enable Input Threshold Voltage

Logic Low (OFF)

Logic High (ON)

Vout1,2 v 0.1 V

Vout1,2 w 0.9 x Vout_nom1,2 (Vout_nom1,2 = 5 V)

Vth(EN1,2)

0.99

−

1.8

1.9

−

2.31

V

Enable Input Current

VEN1,2 = 3.3 V, Vout_nom1,2 = 5 V

IEN1,2

2

8

20

mA

Turn On Time

from Enable ON to 90 % of Vout

Iout1,2 = 100 mA, Cb1,2 = 10 nF,

Rn1 = 82 kW, Rn2 = 27 kW

ton

−

1.7

−

ms

OUTPUT CURRENT SENSE

CSO Voltage Level at Current Limit

Vout1,2 = 0.9 x Vout_nom1,2,

(Vout_nom1,2 = 5 V) RCSO1,2 = 1 kW

VCSO_Ilim1,2

2.448

(−4%)

2.55

2.652

(+4%)

V

CSO Transient Voltage Level

CCSO1,2 = 4.7 mF, RCSO1,2 = 1 kW

Iout1,2 pulse from 10 mA to 300 mA, tr = 1 ms

VCSO1,2

−

3.3

V

Output Current to CSO Current Ratio

(Note 11, 12)

VCSO1,2 = 2 V, Iout1,2 = 1 mA to 10 mA

(Vout_nom1,2 = 5 V)

Iout1,2/

ICSO1,2

−

(−5%)

98

−

(+5%)

−

Output Current to CSO Current Ratio

(Note 12)

VCSO1,2 = 2 V, Iout1,2 = 10 mA to 300 mA

(Vout_nom1,2 = 5 V)

Iout1,2/

ICSO1,2

−

(−5%)

100

−

(+5%)

−

CSO Current at no Load Current

VCSO1,2 = 0 V, Iout1,2 = 0 mA,

(Vout_nom1,2 = 5 V)

ICSO_off1,2

−

10

mA

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

8. Performance guaranteed over the indicated operating temperature range by design and/or characterization tested at TA [ TJ. Low duty

cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.

9. Minimum input voltage Vin_min is 4.4 V or (Vout_nom1,2 + 1 V) whichever is higher. Vout_nom1,2 measured at ADJ1,2 pin due to excluding

Rn1 and Rn2 accuracy.

10. Measured when the output voltage Vout1,2 has dropped by 2% of Vout_nom1,2 from the nominal valued obtained at Vin = Vout1,2 + 8.5 V.

11. Values based on design and/or characterization.

12. Not guaranteed in dropout.

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