NCP3163_10 datasheet(4/20 Pages) ONSEMI

Part #	NCP3163

Description	3.4 A, Step-Up/Down/ Inverting 50-300 kHz Switching Regulator

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Manufacturer	ONSEMI [ON Semiconductor]

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NCP3163, NCV3163

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ELECTRICAL CHARACTERISTICS (VCC = 15 V, Pin 16 = VCC, CT = 270 pF, RT = 15 kW, for typical values TA = 25°C, for min/max

values TA is the operating ambient temperature range that applies (Note 7), unless otherwise noted.)

Characteristic

Symbol

Min

Typ

Max

Unit

OSCILLATOR

Frequency

TA = 25°C, VCC = 15 V

Total Variation over VCC = 2.5 V to 40 V and Temperature

fOSC

225

212

250

275

288

kHz

Charge Current

Ichg

−

225

−

mA

Discharge Current

Idischg

−

25

−

mA

Charge to Discharge Current Ratio

NCP3163

NCV3163

Ichg/Idischg

8.0

7.0

9.0

10.5

−

Sawtooth Peak Voltage

VOSC(P)

−

1.25

−

V

Sawtooth Valley Voltage

VOSC(V)

−

0.55

−

V

FEEDBACK COMPARATOR 1

Threshold Voltage

TA = 25°C

Total Variation over VCC = 2.5 V to 40 V and Temperature

Vth(FB1)

4.9

4.85

5.05

−

5.2

5.25

V

Threshold Voltage − Line Regulation (VCC = 2.5 V to 40 V, TA = 25°C)

REGline(FB1)

−

0.008

0.03

%/V

Input Bias Current (VFB1 = 5.05 V)

IIB(FB1)

−

100

200

mA

FEEDBACK COMPARATOR 2

Threshold Voltage

TA = 25°C, VCC = 15 V

Total Variation over VCC = 2.5 V to 40 V and Temperature

Vth(FB2)

1.225

1.213

1.25

−

1.275

1.287

V

Threshold Voltage − Line Regulation (VCC = 2.5 V to 40 V, TA = 25°C)

REGline(FB1)

−

0.008

0.03

%/V

Input Bias Current (VFB2 = 1.25 V)

IIB(FB2)

− 0.4

−

0.4

mA

CURRENT LIMIT COMPARATOR

Threshold Voltage

TA = 25°C

Total Variation over VCC = 2.5 V to 40 V, and Temperature

Vth(Sense)

−

225

250

−

270

mV

Input Bias Current (VIpk (Sense) = 15 V)

IIB(Sense)

−

1.0

20

mA

DRIVER AND OUTPUT SWITCH (Note 6)

Saturation Voltage (ISW = 2.5 A, Pins 14, 15 grounded)

Non−Darlington (RPin 9 = 110 W to VCC, ISW/IDRV ≈ 20)

NCP3163

NCV3163

Darlington Connection (Pins 9, 10, 11 connected)

NCP3163

NCV3163

VCE(sat)

−

0.6

1.0

1.5

1.4

1.5

V

Collector Off−State Leakage Current (VCE = 40 V)

IC(off)

−

0.02

100

mA

Bootstrap Input Current Source (VBS = VCC + 5.0 V)

Isource(DRV)

0.5

2.0

4.0

mA

Bootstrap Input Zener Clamp Voltage (IZ = 25 mA)

VZ

VCC + 6.0 VCC + 7.0 VCC + 9.0

V

LOW VOLTAGE INDICATOR

Input Threshold (VFB2 Increasing)

Vth

1.07

1.125

1.18

V

Input Hysteresis (VFB2 Decreasing)

VH

−

15

−

mV

Output Sink Saturation Voltage (Isink = 2.0 mA)

VOL(LVI)

−

0.15

0.4

V

Output Off−State Leakage Current (VOH = 15 V)

IOH

−

0.01

5.0

mA

TOTAL DEVICE

Standby Supply Current (VCC = 2.5 V to 40 V, Pin 8 = VCC,

Pins 6, 14, 15 = GND, remaining pins open)

ICC

−

6.0

10

mA

5. Maximum package power dissipation limits must be observed.

6. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.

7. Tlow =0°C for NCP3163

Thigh =+ 70°C for NCP3163

= − 40°C for NCP3163B

= + 85°C for NCP3163B

= − 40°C for NCV3163

= + 125°C for NCV3163

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