NCP1601BDR2G【PDF 5/19 页】IC PFC CTRL CRM/TRANSITION 8SOIC

NCP1601A, NCP1601B

http://onsemi.com

5

ELECTRICAL CHARACTERISTICS (For typical values T

J

= 25癈. For min/max values, T

J

= - -40癈 to +125癈, V

CC

= 15 V,

V

control

= 100 nF, Ramp = 100 pF, Osc = 220 pF unless otherwise specified)

Characteristic

Symbol

Min

Typ

Max

Unit

OSCILLATOR

Oscillator Frequency (Osc = 220 pF to GND)

5

f

osc

52

58

64

kHz

Internal Capacitance of the Oscillator Pin

5

C

osc(int)

- -

36

- -

pF

Maximum Oscillator Switching Frequency

5

f

osc(max)

- -

405

- -

kHz

Oscillator Discharge Current (Osc = 5.5 V)

5

I

odch

40

49

60

mA

Oscillator Charge Current (Osc = 3 V)

5

I

och

40

45

60

mA

Comparator Lower Threshold (Osc = 220 pF to GND) (Note 3)

5

V

sync(L)

3.0

3.5

4.0

V

Comparator Upper Threshold (Osc = 220 pF to GND)

5

V

sync(H)

4.5

5

5.5

V

Synchronization Pulse Width for Detection

5

t

sync(min)

500

- -

ns

Synchronization Propagation Delay

5

t

sync(d)

- -

371

- -

ns

GATE DRIVE

Gate Drive Resistor

Output High and Draw 100 mA out of Drv Pin (I

source

= 100 mA)

Output Low and Insert 100 mA into Drv Pin (I

sink

= 100 mA)

7

R

OH

R

OL

5

2

11.6

7.2

20

18

?/DIV>

Gate Drive Rise Time from 1.5 V to 13.5 V (Drv = 1 nF to GND)

7

t

r

- -

53

- -

ns

Gate Drive Fall Time from 13.5 V to 1.5 V (Drv = 1 nF to GND)

7

t

f

- -

32

- -

ns

FEEDBACK / OVERVOLTAGE PROTECTION / UNDERVOLTAGE PROTECTION

Reference Current

1

I

ref

192

203

208

mA

Regulation Block Ratio

1

I

regL

/ I

ref

95

96

97

%

V

control

Pin Internal Resistor

2

R

control

- -

300

- -

k?/DIV>

Maximum Control Voltage (I

FB

= 100 mA)

2

V

control(max)

0.95

1.05

1.15

V

Feedback Pin Voltage (I

FB

= 100 mA)

1

V

FB1

- -

3

- -

V

Overvoltage Protection Current Ratio

1

I

OVP

/ I

ref

104

107

- -

%

Overvoltage Protection Current

1

I

OVP

- -

217

225

mA

Undervoltage Protection Current Ratio

1

I

UVP

/ I

ref

4

8

15

%

CURRENT SENSE

Current Sense Pin Offset Voltage (I

S

= 100 mA)

4

V

S

- -

4

- -

mV

Overcurrent Protection Level

4

I

S(OCP)

190

203

210

mA

Current Sense Pin Offset Voltage at Overcurrent Level

4

V

S(OCP)

0

3.2

20

mV

Zero Current Detection Level

4

I

S(ZCD)

9

14

19

mA

Current Sense Pin Offset Voltage at Zero Current Level

4

V

S(ZCD)

0

7.5

20

mV

Zero Current Sense Resistor (R

S(ZCD)

= V

S(ZCD)

/ I

S(ZCD)

)

4

R

S(ZCD)

- -

0.536

1

k?/DIV>

RAMP

Charging Current (Ramp = 0 V)

3

I

ch

95

100

105

mA

Maximum Power Resistance (R

power

= V

control(max)

/ I

ch

)

3

R

power

9.5

10.5

11.5

k?/DIV>

Internal Clamping of Voltage V

ton

- -

V

ton(max)

- -

3.9

- -

V

Internal Capacitance of the Ramp Pin

3

C

ramp(int)

- -

20

- -

pF

Ramp Pin Sink Resistance (Osc = 0 V, Ramp = 1 mA sourcing)

3

R

ramp

- -

71.5

- -

?/DIV>

THERMAL SHUTDOWN

Thermal Shutdown Threshold (Note 4)

- -

T

SD

140

- -

癈

Thermal Shutdown Hysteresis

- -

T

H

- -

45

- -

癈

2. Comparator lower threshold is also the synchronization threshold.

3. Guaranteed by design.

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