Sharp PQ1PF1 Datasheet

Primary Regulators

PQ1PF1

Primary Regulator for Switching Power Supply (50W Class)

■ Features

¡5-terminal lead forming package (equivalent to TO-220) ¡Built-in oscillation circuit

(oscillation frequency : TYP. 100kHz)

¡Output for power supply : 50W class ¡Built-in overheat protection, overcurrent protection, low voltage

mulfunction prevention function

■ Applications

¡Switching power supplies for VCRs ¡Switching power supplies for word processors

■ Outline Dimensions

10.2MAX

φ3.2±0.1

7.4±0.2

PQ1PF1

(24.6)

●1●2 ●3●4 ●5

3.6±0.2

5-0.8±0.1

4-(1.7)

(Unit : mm)

4.5±0.2

2.8±0.2

3.2±0.5

)

16.4±0.7

2.0

5.0±0.5

4.4MIN

CC

)

(1.5)

(0.5)

(5.0)

8.2±0.7

· ( ) : Typical value

· Radius of lead forming portion R=TYP.1.0

1 Drain (V 2 GND 3 Control (CA) 4 Feed back (FB) 5 Supply voltage (V

DS

■ Absolute Maximum Ratings

Drain-GND(source)voltage Drain current

*1

Power supply voltage

*2

FB terminal input voltage CA terminal input current

*3

Power dissipation

*4

Junction temperature Operating temperature Storage temperature Soldering temperature

*1

Voltage between V

*2

Voltage between FB terminal and GND terminal.

*3

P

D1

:No heat sink, PD2:With infinite heat sink

*4

Overheat protection may operate at 125=<Tj=<150˚C

“ In the absence of confirmation by device specification sheets,SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs,data books,etc.Contact SHARP in order to obtain the latest version of the device specification sheets before using any SHARP's device. ”

Parameter Symbol Rating Unit

CC

terminal and GND terminal.

V

DS

I

D

V

CC

V

FB

I

CA

P

D1

P

D2

T

j

T

opr

T

stg

T

sol

500

4.5 35

4 2 2

20

150

-20 to +80

-40 to +150

260 (For 10s)

(Ta=25˚C)

V A V V

mA

W W ˚C ˚C ˚C ˚C

· Please refer to the chapter“ Handling Precautions ”.

Primary Regulators

PQ1PF1

■ Electrical Characteristics

Drain-source onstate resistance Drain-source leakage current

Oscillation frequency Temperature change in oscillation frequency Maximum duty

FB threshold voltage

FB current

CA threshold voltage

CA sink current Overcurrent detecting level Operation starting voltage Operation stopping voltage

Stand-by current

Output OFF-mode consumption current Output-operating mode consumption current

Charging current

Parameter Symbol Conditions

Fig. 1 Test circuit

C

IN

100µF 0.01µF

A

+

V

CC

V

FB

●5 ●1

PQ1PF1

●4

A

(Unless otherwise specified, conditions shall be VDS=10V,Vcc=18V,VCA=OPEN,VFB=2.2V, RL=56Ω, Ta=25˚C)

UnitMAX.TYP.MIN.

R

DS (on)

I

DSS

fo

∆fo

MAX

D

V V

V

FB(OCP)

I

V

CAL

V

CAH

V

CA(ON/OFF)

CA(OVP)

V

I

CAIN

I

D(OCP)

V

CC(ON)

V

CC(OFF)

I

CC(ST)

I

CC(OFF)

I

CC(OP)

I

CA(CHG)

●2

FBL FBH

FB

●3

ID=2A

DS

=500V,Vcc=7V

V

CA

=GND,VFB=GND

V

j

=0 to 125˚C

T

Duty=0%

MAX

Duty=D VCA=6V

FB

=GND

V Duty=0%

MAX

Duty=D

VFB=1V,VCA=6V

DS

=OPEN,VFB=OPEN

V

DS

=OPEN,VFB=OPEN

V

DS

=OPEN,Vcc=14V,

V

FB

=OPEN

V

DS

=OPEN,VCA=GND

V

FB

=OPEN

V

CA

=GND,VFB=OPEN

V

A A

V

CA

-

1.2

-

90

100

-

42

2.6

-800

0.49

7.2 20

15.5

8.5

-15

R

L

V

DS

±5 45

-

0.9

-

1.8

2.8

-620

-

0.9

-

1.8

0.6

7.7 36

-

2.5

17.0

9.3

-

100

-

0.6

-

10

-10

1.5

-

250 110

50

3.1

-440

0.74

8.2 52

18.5

10.1 150

1.8 18

-5

Ω

µA

kHz

%

V

-

V

-

V

µA

V

-

V

-

V V

µA

A

-

V V

µA

mA mA

µA

Primary Regulators

,,

PQ1PF1

Fig. 2 Power Dissipation vs. Ambient

(W)

D

Power dissipation P

Fig. 4 Operation Starting Voltage vs.

17.6

(V)

17.5

CC (ON )

17.4

17.3

17.2

17.1

17.0

16.9

Operation starting voltage V

16.8

Fig. 6 Oscillation Frequency vs. Junction

110

105

100

95

Oscillation frequency fO (kHz)

90

Temperature

25

20

15

10

5

0

-20 0 50 80 100 150

D1

:No heat sink

P P

D2

:With infinite heat sink

P

D2

P

D1

Ambient temperature Ta (˚C)

Junction Temperature

VCA=OPEN V

FB=OPEN, VDS=OPEN

-25 0

25 50 75 100 125

Junction temperature T

j

(˚C)

Temperature

VCC=18V,VCA=OPEN V

FB=2.2V,VDS=10V,RL=56Ω

-25 0

25 50 75 100 125

Junction temperature T

j (˚C)

Fig. 3 Stand-by Current vs. Junction

Temperature

100

(µA)

95

CC (ST )

90

85

Stand-by current I

80

-25 0

VCC=14V , VCA=OPEN V

FB

=OPEN, VDS=OPEN

25 50 75 100 125

Junction temperature T

j

(˚C)

Fig. 5 Output-Operating Mode Consumption

Current vs. Junction Temperature

12

VCC=18V,VCA=OPEN V

FB

=2.2V,VDS=10V,RL=56Ω

11

(mA)

10

CC(OP)

9

current I

8

Output-operating mode consumption

7

-25 0

25 50 75 100 125

Junction temperature T

j

(˚C)

Fig. 7 Maximum Duty vs. Junction

Temperature

47.0

46.5

(%)

46.0

MAX

45.5

45.0

44.5

44.0

43.5

Maximum duty D

43.0

42.5

42.0

-25 0

VCC=18V,VCA=OPEN V

FB

=2.2V,VDS=10V,RL=56Ω

25 50 75 100 125

Junction temperature T

j

(˚C)

Primary Regulators

PQ1PF1

Fig.8 Drain-soure onstate resistance vs.

Junction Temperature

3.0 VCC=18V,VCA=OPEN

FB=2.2V,VDS=10V,ID=2A

V

2.5

2.0

1.5

1.0

0.5

0

Drain-source onstate resistance RDS(ON) (Ω)

-25 0

25 50 75 100 125

Junction temperature T

j (˚C)

Fig.10 FB Threshold Voltage vs. Junction

Temperature

1.20 VCC=18V,VCA=OPEN

V

DS=10V,RL=56Ω

25 50 75 100 125

Junction temperature T

j (˚C)

FB threshold voltage VFBL (V)

1.15

1.10

1.05

1.00

0.95

0.90

0.85

0.80

-25 0

Fig.9 Overcurrent Detecting Level vs.

Junction Temperature

3.0

CC

=18V,VCA=OPEN

V

(A)

2.9

FB

=2.2V,VDS=10V

V

2.8

D (OCP)

2.7

2.6

2.5

2.4

2.3

2.2

2.1

Overcurrent detecting level I

2.0

-25 0

25 50 75 100 125

Junction temperature Tj (˚C)

Fig.11 FB Threshold Voltage vs. Junction

Temperature

2.10

2.05

(V)

2.00

FBH

1.95

1.90

1.85

1.80

1.75

FB threshold voltage V

1.70

-25 0 Junction temperature Tj (˚C)

VCC=18V,VCA=OPEN V

DS

=10V,RL=56Ω

25 50 75 100 125

Fig.12 CA Threshold Voltage vs. Junction

Temperature

0.75

0.70

(V)

0.65

0.60

CA(ON/OFF)

0.55

0.50

0.45

0.40

0.35

0.30

CA threshold voltage V

0.25

0.20

-25 0 Junction temperature Tj (˚C)

CC

=18V,VCA=OPEN

V V

DS

=10V,RL=56Ω

25 50 75 100 125

Fig.13 CA Threshold Voltage vs. Junction

Temperature

1.20

1.15

(V)

1.10

CA L

1.05

1.00

0.95

0.90

0.85

CA threshold voltage V

0.80

-25 0 Junction temperature Tj (˚C)

V

CC

=18V,VFB=2.2V

V

DS

=10V,RL=56Ω

25 50 75 100 125

Primary Regulators PQ1PF1

Fig.14 CA Threshold Voltage vs. Junction

Temperature

2.10

CC

=18V,VFB=2.2V

V V

DS

=10V,RL=56Ω

(V)

CA H

2.05

2.00

1.95

1.90

1.85

1.80

CA threshold voltage V

1.75

1.70

-25 0

25 50 75 100 125

Junction temperature Tj (˚C)

Fig.16 FB Threshold Voltage vs. Junction

Temperature

3.00

CC

=18V,VCA=6V

V

DS

=10V,RL=56Ω

V

2.95

(V)

2.90

FB(OCP)

2.85

Fig.15 CA Threshold Voltage vs. Junction

Temperature

8.6 V

CC

=18V,VFB=2.2V

8.4

DS

=10V,RL=56Ω

V

(V)

8.2

CA(OVP)

8.0

7.8

7.6

7.4

CA threshold voltage V

7.2

-25 0

25 50 75 100 125

Junction temperature Tj (˚C)

Fig.17 CA Sink Current vs. Junction

Temperature

50

VCC=18V,VCA=6V V

DS=10V,RL=56Ω,VFB=1V

45

40

2.80

2.75

FB threshold voltage V

2.70

-25 0

25 50 75 100 125

Junction temperature Tj (˚C)

Fig.18 FB Current vs. Junction

Temperature

FB current IFB (µA)

-700

-650

-600

-550

-500

-450

-400

-25 0 Junction temperature T

VCC=18V,VCA=OPEN

FB=GND,VDS=OPEN

V

25 50 75 100 125

j (˚C)

35

CA sink current ICA(IN) (µA)

30

-25 0

25 50 75 100 125

Junction temperature T

j (˚C)

Fig.19 Charging Current vs. Junction

Temperature

-10.5

CC

=18V,VCA=GND

V

-10.3

V

FB

=OPEN,VDS=10V,RL=56Ω

-10.1

(µA)

-9.9

CA(CHG)

-9.7

-9.5

-9.3

-9.1

-8.9

Charging current I

-8.7

-8.5

-25 0

25 50 75 100 125

Junction temperature Tj (˚C)