ON Semiconductor NCP1010, NCP1011, NCP1012, NCP1013, NCP1014 Technical data

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NCP1010, NCP1011, NCP1012, NCP1013, NCP1014

Self−Supplied Monolithic Switcher for Low Standby− Power Offline SMPS

The NCP101X series integrates a fixed−frequency current−mode controller and a 700 V MOSFET. Housed in a PDIP−7, PDIP−7 Gull Wing, or SOT−223 package, the NCP101X offers everything needed to build a rugged and low−cost power supply, including soft−start, frequency jittering, short−circuit protection, skip−cycle, a maximum peak current setpoint and a Dynamic Self−Supply (no need for an auxiliary winding).

Unlike other monolithic solutions, the NCP101X is quiet by nature: during nominal load operation, the part switches at one of the available frequencies (65 − 100 − 130 kHz). When the current setpoint falls below a given value, e.g. the output power demand diminishes, the IC automatically enters the so−called skip−cycle mode and provides excellent efficiency at light loads. Because this occurs at typically 1/4 of the maximum peak value, no acoustic noise takes place. As a result, standby power is reduced to the minimum without acoustic noise generation.

Short−circuit detection takes place when the feedback signal fades away, e.g. in true short−circuit conditions or in broken Optocoupler cases. External disabling is easily done either simply by pulling the feedback pin down or latching it to ground through an inexpensive SCR for complete latched−off. Finally soft−start and frequency jittering further ease the designer task to quickly develop low−cost and robust offline power supplies.

For improved standby performance, the connection of an auxiliary winding stops the DSS operation and helps to consume less than 100 mW at high line. In this mode, a built−in latched overvoltage protection prevents from lethal voltage runaways in case the Optocoupler would brake. These devices are available in economical 8−pin dual−in−line and 4−pin SOT−223 packages.

Features

• Built−in 700 V MOSFET with Typical R

and 22 

• Large Creepage Distance Between High−Voltage Pins

• Current−M ode Fixed Frequency Operation:

65 kHz – 100 kHz − 130 kHz

• Skip−Cycle Operation at Low Peak Currents Only:

No Acoustic Noise!

• Dynamic Self−Supply, No Need for an Auxiliary

Winding

• Internal 1.0 ms Soft−Start

• Latched Overvoltage Protection with Auxiliary

Winding Operation

• Frequency Jittering for Better EMI Signature

DSon

of 11 

• Auto−Recovery Internal Output Short−Circuit

Protection

• Below 100 mW Standby Power if Auxiliary Winding

is Used

• Internal Temperature Shutdown

• Direct Optocoupler Connection

• SPICE Models Available for TRANsient Analysis

• Pb−Free Packages are Available*

T ypical Applications

• Low Power AC/DC Adapters for Chargers

• Auxiliary Power Supplies (USB, Appliances,

TVs, etc.)

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MARKING DIAGRAMS

PDIP−7

x = Current Limit (0, 1, 2, 3, 4) yy = 06 (65 kHz), 10 (100 kHz), 13 (130 kHz) y = Oscillator Frequency

A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week

See detailed ordering and shipping information in the package dimensions section on page 22 of this data sheet.

CASE 626A

AP SUFFIX

PDIP−7

(Gull Wing)

CASE 626AA

APL SUFFIX

SOT−223

CASE 318E

ST SUFFIX

A (65 kHz), B (100 kHz), C (130 kHz)

ORDERING INFORMATION

P101xAPyy

AWL

YYWW

101xAPLyy

AWL

YYWW

101xy ALYW

*For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting

Techniques Reference Manual, SOLDERRM/D.

 Semiconductor Components Industries, LLC, 2004

September, 2004 − Rev. 10

1 Publication Order Number:

NCP1010/D

NCP1010, NCP1011, NCP1012, NCP1013, NCP1014

PIN CONNECTIONS

NC NC

PDIP−7

1 2 3 4

(Top View)

8 7

GND NC

DRAIN

NC NC

PDIP−7

(Gull Wing)

1 2 3 4

(Top View)

8 7

GND NC

DRAIN

SOT−223

1 2 3

(Top View)

GND

Indicative Maximum Output Power from NCP1014

− Ip 230 Vac 100 − 250 Vac

DSon

11  − 450 mA DSS 14 W 6.0 W

11  − 450 mA Auxiliary Winding 19 W 8.0 W

1. Informative values only, with: Tamb = 50°C, Fswitching = 65 kHz, circuit mounted on minimum copper area as recommended.

Vout

100−250 Vac

18 27 3

NCP101X

GND

Figure 1. T ypical Application Example

Quick Selection Table

NCP1010 NCP1011 NCP1012 NCP1013 NCP1014

[] 22 11

DSon

Ipeak [mA] 100 250 250 350 450 Freq [kHz] 65 100 130 65 100 130 65 100 130 65 100 130 65 100

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NCP1010, NCP1011, NCP1012, NCP1013, NCP1014

PIN FUNCTION DESCRIPTION

Pin No.

(SOT−223)

1 1 V

− 2 NC − −

− 3 NC − − 2 4 FB Feedback Signal Input By connecting an optocoupler to this pin, the peak

3 5 Drain Drain Connection The internal drain MOSFET connection.

− − − − −

− 7 NC − This unconnected pin ensures adequate creepage

4 8 GND The IC Ground −

Pin No.

(PDIP−7,

PDIP−7/Gull Wing)

Pin Name Function Description

Powers the Internal Circuitry This pin is connected to an external capacitor of typi-

cally 10 F. The natural ripple superimposed on the

participates to the frequency jittering. For im-

proved standby performance, an auxiliary V connected to Pin 1. The V shunt which serves as an opto fail−safe protection.

also includes an active

current setpoint is adjusted accordingly to the output power demand.

distance.

can be

Vclamp*

4 V

18 k

Error flag armed?

Startup Source

UVLO

Management

EMI Jittering

Overload?

Drain

Iref = 7.4 mA

High when VCC  3 V

65, 100 or

130 kHz

Clock

−

0.5 V

Soft−Start

− +

Set

Flip−Flop

DCmax = 65%

− +

Startup Sequence Overload

S Q

Reset

GND

Rsense

250 ns

L.E.B.

Driver

−

Drain

*Vclamp = VCC

+ 200 mV (8.7 V Typical)

OFF

Figure 2. Simplified Internal Circuit Architecture

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NCP1010, NCP1011, NCP1012, NCP1013, NCP1014

MAXIMUM RATINGS

Rating

Power Supply Voltage on all pins, except Pin 5 (Drain) V Drain Voltage − −0.3 to 700 V Drain Current Peak during Transformer Saturation I Maximum Current into Pin 1 when Activating the 8.7 V Active Clamp I_V Thermal Characteristics

P Suffix, Case 626A and PL Suffix (Gull Wing), Case 626AA

Junction−to−Lead Junction−to−Air, 2.0 oz Printed Circuit Copper Clad

0.36 Sq. Inch

1.0 Sq. Inch

ST Suffix, Plastic Package Case 318E

Junction−to−Lead Junction−to−Air, 2.0 oz Printed Circuit Copper Clad

0.36 Sq. Inch

1.0 Sq. Inch Maximum Junction Temperature T Storage Temperature Range − −60 to +150 °C ESD Capability, Human Body Model (All pins except HV) − 2.0 kV ESD Capability, Machine Model − 200 V

Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously . If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected.

Symbol

DS(pk)



Jmax

Value

−0.3 to 10 V

2 x I

max A

lim

15 mA

9.0

77 60

74 55

150 °C

Unit

°C/W

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NCP1010, NCP1011, NCP1012, NCP1013, NCP1014

ELECTRICAL CHARACTERISTICS (For typical values T

= 8.0 V unless otherwise noted.)

Rating

= 25°C, for min/max values TJ = 0°C to +125°C, Max TJ = 150°C,

Pin Symbol Min Typ Max Unit

SUPPLY SECTION AND VCC MANAGEMENT

Increasing Level at which the Current Source Turns−off 1 VCC

VCC Decreasing Level at which the Current Source Turns−on 1 VCC VCC Decreasing Level at which the Latch−off Phase Ends 1 VCC VCC Decreasing Level at which the Internal Latch is Released 1 VCC

OFF

latch

reset

7.9 8.5 9.1 V

6.9 7.5 8.1 V

4.4 4.7 5.1 V

− 3.0 − V

Internal IC Consumption, MOSFET Switching at 65 kHz 1 ICC1 − 0.92 1.1

(Note 2)

Internal IC Consumption, MOSFET Switching at 100 kHz 1 ICC1 − 0.95 1.15

(Note 2)

Internal IC Consumption, MOSFET Switching at 130 kHz 1 ICC1 − 0.98 1.2

(Note 2) Internal IC Consumption, Latch−off Phase, VCC = 6.0 V 1 ICC2 − 290 − A Active Zener Voltage Positive Offset to VCC Latch−off Current

NCP1012/13/14 NCP1010/11

OFF

1 Vclamp 140 200 300 mV 1 ILatch

6.3

5.8

7.4

7.3

9.2

9.0

POWER SWITCH CIRCUIT

Power Switch Circuit On−state Resistance

5 R

DSon

−

NCP1012/13/14 (Id = 50 mA)

= 25°C

= 125°C

16 24

NCP1010/11 (Id = 50 mA)

= 25°C

= 125°C

Power Switch Circuit and Startup Breakdown Voltage

(ID

= 120 A, TJ = 25°C)

(off)

Power Switch and Startup Breakdown Voltage Off−state

5 BVdss 700 − − V

)

DS(OFF

22 38

35 50

Leakage Current

= 25°C (Vds = 700 V)

= 125°C (Vds = 700 V)

5 5

−

50 30

−

Switching Characteristics

(RL = 50 , Vds Set for Idrain = 0.7 x Ilim)

Turn−on Time (90%−10%) Turn−off Time (10%−90%)

5 5

ton toff

−

20 10

−

INTERNAL STARTUP CURRENT SOURCE

High−voltage Current Source, V

NCP1012/13/14 NCP1010/11

= 8.0 V

1 IC1

5.0

8.0

8.5

10.3

High−voltage Current Source, VCC = 0 1 IC2 − 10 − mA

CURRENT COMPARATOR TJ = 25°C (Note 2)

Maximum Internal Current Setpoint, NCP1010 (Note 3)

5 Ipeak (22) 90 100 110 mA Maximum Internal Current Setpoint, NCP1011 (Note 3) 5 Ipeak (22) 225 250 275 mA Maximum Internal Current Setpoint, NCP1012 (Note 3) 5 Ipeak (11) 225 250 275 mA Maximum Internal Current Setpoint, NCP1013 (Note 3) 5 Ipeak (11) 315 350 385 mA Maximum Internal Current Setpoint, NCP1014 (Note 3) 5 Ipeak (11) 405 450 495 mA Default Internal Current Setpoint for Skip−Cycle Operation,

− I

Lskip

− 25 − %

Percentage of Max Ip Propagation Delay from Current Detection to Drain OFF State − T Leading Edge Blanking Duration − T

DEL LEB

− 125 − ns

− 250 − ns

2. See characterization curves for temperature evolution.

3. Adjust di/dt to reach Ipeak in 3.2 sec.



A

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NCP1010, NCP1011, NCP1012, NCP1013, NCP1014

ELECTRICAL CHARACTERISTICS (continued) (For typical values T

Max T

= 150°C, VCC= 8.0 V unless otherwise noted.)

Rating

= 25°C, for min/max values TJ = 0°C to +125°C,

Pin Symbol Min Typ Max Unit

INTERNAL OSCILLATOR

Oscillation Frequency, 65 kHz Version, TJ = 25°C (Note 4) − f Oscillation Frequency, 100 kHz Version, TJ = 25°C (Note 4) − f Oscillation Frequency, 130 kHz Version, TJ = 25°C (Note 4) − f Frequency Dithering Compared to Switching Frequency

− f

OSC OSC OSC dither

59 65 71 kHz 90 100 110 kHz

117 130 143 kHz

− 3.3 − %

(with active DSS) Maximum Duty−cycle − Dmax 62 67 72 %

FEEDBACK SECTION

Internal Pull−up Resistor 4 Rup − 18 − k Internal Soft−Start (Guaranteed by Design) − Tss − 1.0 − ms

SKIP−CYCLE GENERATION

Default Skip Mode Level on FB Pin 4 Vskip − 0.5 − V

TEMPERATURE MANAGEMENT

Temperature Shutdown − TSD − 150 − °C Hysteresis in Shutdown − − − 50 − °C

4. See characterization curves for temperature evolution.

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NCP1010, NCP1011, NCP1012, NCP1013, NCP1014

TYPICAL CHARACTERISTICS

−2.0

−3.0

−4.0

−5.0

−6.0

IC1 ( mA)

−7.0

−8.0

−9.0

−10.0

−25 0 25 50 75 100 125 TEMPERATURE (°C)

Figure 3. IC1 @ VCC = 8.0 V, FB = 1.5 V

vs. Temperature

0.40

0.38

0.36

0.34

0.32

0.30

0.28

ICC2 (mA)

0.26

0.24

0.22

0.20

−25 0 25 50 75 100 125 TEMPERATURE (°C)

1.50

1.40

1.30

1.20

1.10

1.00

0.90

ICC1 (mA)

0.80

0.70

0.60

0.50

−25 0 25 50 75 100 125 TEMPERATURE (°C)

Figure 4. ICC1 @ VCC = 8.0 V, FB = 1.5 V

vs. Temperature

9.00

8.90

8.80

8.70

8.60

8.50

VCC−OFF ( V )

8.40

8.30

8.20

−25 0 25 50 75 100 125 TEMPERATURE (°C)

Figure 5. ICC2 @ VCC = 6.0 V, FB = Open

vs. Temperature

8.00

7.90

7.80

7.70

7.60

7.50

7.40

VCC−ON ( V)

7.30

7.20

7.10

7.00

−25 0 25 50 75 100 125 TEMPERATURE (°C)

Figure 7. VCC ON, FB = 3.5 V vs. Temperature

Figure 6. VCC OFF, FB = 1.5 V vs.

Temperature

DUTY CYCLE (%)

−25 0 25 50 75 100 125 TEMPERATURE (°C)

Figure 8. Duty Cycle vs. T emperature

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NCP1010, NCP1011, NCP1012, NCP1013, NCP1014

TYPICAL CHARACTERISTICS

9.00

8.80

8.60

8.40

8.20

8.00

7.80

I_Latch (mA)

7.60

7.40

7.20

7.00

−25 0 25 50 75 100 125 TEMPERATURE (°C)

Figure 9. ILatch, FB = 1.5 V vs. T emperature

160

(kHz)

OSC

140

120

100

130 kHz

100 kHz

500 480 460 440 420 400 380

Ipeak (mA)

360 340 320 300

−25 0 25 50 75 100 125

NCP1013

TEMPERATURE (°C)

Figure 10. Ipeak−RR, VCC = 8.0 V, FB = 3.5 V

vs. Temperature

25.00

20.00

15.00

()

DSon

10.00

−25 0 25 50 75 100 125 TEMPERATURE (°C)

Figure 11. Frequency vs. Temperature

5.00

0.00

−25 0 25 50 75 100 12 TEMPERATURE (°C)

Figure 12. ON Resistance vs. T emperature,

NCP1012/1013

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