LP2951CD(2006) Ver la hoja de datos (PDF) - ON Semiconductor

Número de pieza

componentes Descripción

Fabricante

LP2951CD
(Rev.:2006)

100 mA, Low Power Low Dropout Voltage Regulator

ON Semiconductor 

LP2950, LP2951, NCV2951

4

1N4001

+ 5.0 V

20 mA

4.7 k

1

5

Output*

8

NC

5 Error Vin Vout 1 2

SNS 2 NC

LP2951CN

NC 3 SD

VO T 6 NC

0.1 mF

Gnd FB

4

7

4

* High for

IL < 3.5 mA

1N457

1N457

360

1N457

Figure 27. Open Circuit Detector for 4.0 to 20 mA Current Loop

2

MC34164P−5 1

3

100 k

31.6 k

2N3906

6.0 V Lead−Acid

Battery

8

NC 5 Error Vin Vout 1

SNS 2

LP2951CN

3 SD

VO T 6 NC

Gnd FB

4

7

NC

Figure 28. Low Battery Disconnect

1.0 mF

Main V+

Memory V+

20

NiCad Backup

Battery

100

2.4

Free Air

PD(max) for TA = 50°C

90

Mounted

2.0

Vertically

80

Minimum

70

Size Pad

60

2.0 oz. Copper

L

1.6

ÎÎÎÎÎÎÎÎ L

1.2

ÎÎÎÎÎÎÎÎ 0.8

50

0.4

RqJA

40

0

0

5.0

10

15

20

25

30

L, LENGTH OF COPPER (mm)

Figure 29. DPAK Thermal Resistance and Maximum

Power Dissipation versus PCB Copper Length

http://onsemi.com

13

Share Link: