2

Sheet No.: OP06038

Electrical Characteristics

270

300

330

kHz

±3

Parameter

Symbol

Conditions

MIN.

MAX.

Unit

Output saturation voltage

0.95

1.5

V

Reference voltage

1.235

1.26

1.285

V

Reference voltage temperature fluctuation

TYP.

－

－

－

±0.5

－

%

Load regulation

－

0.2

1.5

%

Line regulation

－

－

1

2.5

%

%

Efficiency

80

－

－

Oscillation frequency

－

Oscillation frequency temperature fluctuation

－

－

－

－

%

Overcurrent detecting level

0.85

1.2

1.6

A

Charge current

②,④ terminals is open,⑤ terminal

-10

－

－

－

Input threshold voltage

Duty ratio=0%,④ terminal=0V,⑤ terminal

Duty ratio=100%,④ terminal =1.1V, ⑤ terminal

1.3

2.1

V

V

V

ON threshold voltage

④ terminal=0V,⑤ terminal

0.7

0.8

0.9

Stand-by current

－

－

120

400

Output OFF-state dissipation current

510

Fig.1 Test Circuit

PQ1CG38M2FZH/PQ1CG38M2RZH

L

D

Load

PQ1CG38M2

+

+

65 H

470 F

100 F

1k

A

A

A

L : HK-14S100-2110 (made by Toho Co.)

D : ERC80-004 (made by Fuji electronics Co.)

0

0

1

2

3

4

5

6

0.5

1

1.5

2

mA

①②

③

④

⑤

ON/OFF control logic

Output

OFF

ON

5 pin

LOW

HIG H

OPEN

ON

Note) Oblique line portion:Overheat protection may operate in this area

Switching current peak

-20

0

25

50

75 80 100

125

150

20

15

10

5

0

Fig.2 Power Dissipation vs.Ambient

Temperature

Fig.3 Overcurrent Protection

Characteristics (Typical Value)