RXXLD20

Linear Integrated Circuit

UNISONICTECHNOLOGIESCO.,LTD

6

www.unisonic.com.tw

QW-R102-015.C

TYPICAL CHARACTERISTICS

-20

80

40

20

060

0

5

10

15

20

0

0

Ambient temperature, Ta (℃)

Fig.3 Power Dissipation vs. Ambient

Temperature

Fig.4 Overcurrent Protection

Characteristics(Typical Value) (R33LD20)

PD1

PD2

PD1:No heat sink

PD2:With infinite heat sink

4.0

3.0

2.0

1.0

9

8

7

6

5

4

3

2

1

10

11

12

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

Vd=3V

Vd=0.5V

Vd=1V

Vd =2V

Output current, Io (A)

04.0

3.0

2.0

1.0

12

11

10

9

8

7

6

5

4

3

2

1

Fig.6 Overcurrent Protection Characteristics

(Typical Value)(R09LD20)

Output current, Io (A)

Fig.7 Overcurrent Protection Characteristics

(Typical Value)(R12LD20)

Output current Io (A)

04.0

3.0

2.0

1.0

12

11

10

9

8

7

6

5

4

3

2

1

Vd=0.5V

Fig.8 Output Voltage Deviation vs .Junction

Temperature (R03LD20)

-25

100

50

25

075

125

-100

-50

0

50

100

150

Io=0.5A

Vd=2V

Vd=3V

Vd=1V

Vd=0.5V

Vd=2V

Vd=3V

Vd=1V

Fig.5 Overcurrent Protection Characteristics

(Typical Value)(R05LD20)

04.0

3.0

2.0

1.0

12

11

10

9

8

7

6

5

4

3

2

1

Vd=2V

Vd=0.5V

Vd=3V

Vd=1V