NCP1654 datasheet(4/9 Pages) ONSEMI

Part #	NCP1654

Description	Power Factor Controller for Compact and Robust, Continuous Conduction Mode Pre?묬onverters

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NCP1654

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Typical Electrical Characteristics Table (VCC = 15 V, TJ from −40°C to +125°C, unless otherwise specified) (Note 3)

Symbol

Unit

Max

Typ

Min

Rating

UNDER−VOLTAGE PROTECTION / SHUTDOWN

VUVP(on)/Vref

UVP Activate Threshold Ratio (TJ = 0°C to +105°C)

4

8

12

%

VUVP(off)/Vref

UVP Deactivate Threshold Ratio (TJ = 0°C to +105°C)

6

12

18

%

VUVP(H)

UVP Lockout Hysteresis

−

4

−

%

TUVP

Propagation Delay (VFB < 8% Vref) to Drive Low

−

500

−

ns

THERMAL SHUTDOWN

Tlimit

Thermal Shutdown Threshold

150

−

°C

Htemp

Thermal Shutdown Hysteresis

−

30

−

°C

VCC UNDER−VOLTAGE LOCKOUT SECTION

Vstup

Start−Up Threshold (Under−Voltage Lockout Threshold, VCC rising) − Version A

Start−Up Threshold (Under−Voltage Lockout Threshold, VCC rising)− Version B

12.5

9.6

13.75

10.5

15

11.4

V

Vdisable

Disable Voltage after Turn−On (Under−Voltage Lockout Threshold, VCC falling)

Version A & B

8.25

9

9.75

V

HUVLO

Under−Voltage Lockout Hysteresis − Version A

Under−Voltage Lockout Hysteresis − Version B

4

1

4.75

1.5

−

V

DEVICE CONSUMPTION

Icc_stup

Icc_op1

Icc_op2

Icc_stdwn

Power Supply Current:

Start−Up (@ VCC = 12.4 V, version A and VCC = 9.4 V, version B)

Operating (@ VCC = 15 V, no load, no switching)

Operating (@ VCC = 15 V, no load, switching)

Shutdown Mode (@ VCC = 15 V and VFB = 0 V)

−

3.7

4.7

300

75

5

6

400

mA

3. The above specification gives the targeted values of the parameters. The final specification will be available once the complete circuit charac-

terization has been performed.

NOTE:

IM +

Ics

Iin

2

Icontrol

,Iin +

VBO

2

R

,Icontrol +

Vcontrol * Vf

R

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