LM7912 데이터 시트보기 (PDF) - National ->Texas Instruments

부품명

상세내역

제조사

LM7912

3-Terminal Negative Regulators

National ->Texas Instruments 

Typical Applications (Continued)

High-Sensitivity Light Controller

Lamp brightness increases until ii e 5V R1 (Ii can be set as low as 1 mA)

Necessary only if raw supply filter capacitor is more than 2 from LM7905

g15V 1 Amp Tracking Regulators

TL H 7340 – 9

Load Regulation at DIL e 1A

Output Ripple CIN e 3000 mF IL e 1A

Temperature Stability

Output Noise 10 Hz s f s 10 kHz

(b15)

40 mV

100 mVrms

50 mV

150 mVrms

(a15)

2 mV

100 mVrms

50 mV

150 mVrms

Resistor tolerance of R4 and R5 determine matching of (a) and (b)

outputs

Necessary only if raw supply filter capacitors are more than 3 from regu-

lators

TL H 7340 – 1

6

Share Link: