NCP1030 datasheet(5/18 Pages) ONSEMI | Low Power PWM Controller with On-Chip Power Switch and Startup Circuits for 48 V Telecom Systems

5 page

NCP1030, NCP1031

http://onsemi.com

DC ELECTRICAL CHARACTERISTICS (VDRAIN = 48 V, VCC = 12 V, CT = 560 pF, VUV = 3 V, VOV = 2 V, VFB = 2.3 V,

VCOMP = 2.5 V, TJ = −40°C to 125°C, typical values shown are for TJ = 25°C unless otherwise noted.) (Note 1)

Characteristics

Symbol

Min

Typ

Max

Unit

STARTUP CONTROL

Startup Circuit Output Current (VFB = VCOMP)

NCP1030

TJ = 25°C

VCC = 0 V

VCC = VCC(on) − 0.2 V

TJ = −40°C to 125°C

VCC = 0 V

VCC = VCC(on) − 0.2 V

NCP1031

TJ = 25°C

VCC = 0 V

VCC = VCC(on) − 0.2 V

TJ = −40°C to 125°C

VCC = 0 V

VCC = VCC(on) − 0.2 V

ISTART

6.0

8.0

2.0

8.0

4.0

12.5

8.6

−

VCC Supply Monitor (VFB = 2.7 V)

Startup Threshold Voltage (VCC Increasing)

Minimum Operating VCC After Turn−on (VCC Increasing)

Hysteresis Voltage

VCC(on)

VCC(off)

VCC(hys)

9.6

7.0

−

10.2

7.6

2.6

10.6

8.0

−

Undervoltage Lockout Threshold Voltage, VCC Decreasing (VFB = VCOMP)

VCC(reset)

6.0

6.6

7.0

Minimum Startup Voltage (Pin 8)

ISTART = 0.5 mA, VCC =VCC(on) − 0.2 V

VSTART(min)

−

16.8

18.5

ERROR AMPLIFIER

Reference Voltage (VCOMP = VFB, Follower Mode)

TJ = 25°C

TJ = −40°C to 125°C

VREF

2.45

2.40

2.5

2.55

2.60

Line Regulation (VCC = 8 V to 16 V, TJ = 25°C)

REGLINE

−

1.0

5.0

Input Bias Current (VFB = 2.3 V)

IVFB

−

0.1

1.0

COMP Source Current

ISRC

110

140

COMP Sink Current (VFB = 2.7 V)

ISNK

200

550

900

COMP Maximum Voltage (ISRC = 0 mA)

VC(max)

4.5

−

COMP Minimum Voltage (ISNK = 0 mA, VFB = 2.7 V)

VC(min)

−

1.0

Open Loop Voltage Gain

AVOL

−

Gain Bandwidth Product

GBW

−

1.0

−

MHz

LINE UNDER/OVERVOLTAGE DETECTOR

Undervoltage Lockout (VFB = VCOMP)

Voltage Threshold (Vin Increasing)

Voltage Hysteresis

Input Bias Current

VUV

VUV(hys)

IUV

2.400

0.075

−

2.550

0.175

2.700

0.275

1.0

Overvoltage Lockout (VFB = VCOMP)

Voltage Threshold (Vin Increasing)

Voltage Hysteresis

Input Bias Current

VOV

VOV(hys)

IOV

2.400

0.075

−

2.550

0.175

2.700

0.275

1.0

1. Production testing for NCP1030DMR2 is performed at 25

°C only; limits at −40°C and 125°C are guaranteed by design.

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