NCP1340B3D1R2G datasheet(5/32 Pages) ONSEMI

Part #	NCP1340B3D1R2G

Description	High-Voltage, Quasi-Resonant, Controller Featuring Valley Lock-Out Switching

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NCP1340

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Table 4. ELECTRICAL CHARACTERISTICS: (VCC = 12 V, VHV = 120 V, VFault = open, VFB = 2.4 V, VCS = 0 V, VZCD = 0 V, VFMAX

= 0 V, CVCC = 100 nF , CDRV = 1 nF, for typical values TJ = 25°C, for min/max values, TJ is – 40°C to 125°C, unless otherwise noted)

Characteristics

Conditions

Symbol

Min

Typ

Max

Unit

START−UP AND SUPPLY CIRCUITS

Supply Voltage

Startup Threshold

Discharge Voltage During Line Removal

Minimum Operating Voltage

Operating Hysteresis

Internal Latch / Logic Reset Level

Transition from Istart1 to Istart2

dV/dt = 0.1 V/ms

VCC increasing

VCC decreasing

VCC(on) − VCC(off)

VCC decreasing

VCC increasing, IHV = 650 mA

VCC(on)

VCC(X2_reg)

VCC(off)

VCC(HYS)

VCC(reset)

VCC(inhibit)

16.0

17.0

8.5

7.5

4.5

0.40

17.0

18.0

9.0

–

5.5

0.70

18.0

19.0

9.5

–

7.5

1.05

V

VCC(off) Delay

VCC decreasing

tdelay(VCC_off)

–

30.0

–

ms

Startup Delay

Delay from VCC(on) to DRV Enable

tdelay(start)

–

500

ms

Minimum Voltage for Start−Up Current

Source

VHV(MIN)

–

40

V

Inhibit Current Sourced from VCC Pin

Vcc = 0 V

Istart1

0.2

0.5

0.65

mA

Start−Up Current Sourced from VCC Pin

Vcc = Vcc(on) – 0.5 V

Istart2

2.4

3.75

5.0

mA

Start−Up Circuit Off−State Leakage Cur-

rent

VHV = 162.5 V

VHV = 325 V

VHV = 700 V

IHV(off1)

IHV(off2)

IHV(off3)

–

15

20

50

mA

Supply Current

Fault or Latch

Skip Mode (excluding FB current)

Operating Current

VCC = VCC(on) – 0.5 V

VFB = 0 V

fsw = 50 kHz, CDRV = open

ICC1

ICC2

ICC3

0.075

0.185

0.5

0.115

0.230

1.0

0.150

0.315

1.5

mA

VCC Overvoltage Protection Threshold

VCC(OVP)

27

28

29

V

VCC Overvoltage Protection Delay

tdelay(VCC_OVP)

–

30.0

–

ms

X2 CAPACITOR DISCHARGE

Line Voltage Removal Detection Timer

tline(removal)

65

100

135

ms

Discharge Timer Duration

tline(discharge)

21

32

43

ms

Line Detection Timer Duration

tline(detect)

21

32

43

ms

VCC Discharge Current

VCC = 20 V

ICC(discharge)

13

18

23

mA

HV Discharge Level

VHV(discharge)

–

30

V

BROWNOUT DETECTION

System Start−Up Threshold

VHV increasing

VBO(start)

107

112

116

V

Brownout Threshold

VHV decreasing

VBO(stop)

93

98

102

V

Hysteresis

VHV increasing

VBO(HYS)

9.0

14

–

V

Brownout Detection Blanking Time

VHV decreasing

tBO(stop)

40

70

100

ms

GATE DRIVE

Rise Time

VDRV from 10% to 90%

tDRV(rise)

–

40

80

ns

Fall Time

VDRV from 90% to 10%

tDRV(fall)

–

20

60

ns

Current Capability

Source

Sink

IDRV(SRC)

IDRV(SNK)

–

500

800

–

mA

High State Voltage

VCC = VCC(off) + 0.2 V, RDRV = 10 kW

VCC = 30 V, RDRV = 10 kW

VDRV(high1)

VDRV(high2)

8.0

10

–

12

–

14

V

Low Stage Voltage

VFault = 0 V

VDRV(low)

–

0.25

V

FEEDBACK

Open Pin Voltage

VFB(open)

4.9

5.0

5.1

V

VFB to Internal Current Setpoint Division

Ratio

KFB

−

4

−

–

Internal Pull−Up Resistor

VFB = 0.4 V

RFB

350

400

420

k

W

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