TA81Z6S

The TA81Z6S, TA8126F are DC/DC converter ICs. They are designed for biasing varactor diodes of tuner system. Those items are especially suitable for supplying high voltage (about 15V/30V) for electric tuning (FM/TV/UHF I AM) system of headphone stereos, radio cassette recorders, or other equipments.

The features of TA81Z6S can be summarized as (1)excellent regulatory capability of output voltage against fluctuation of supply voltage, and of ambient temperature; (2)excellent spurious radiation by oscillation of sine wave; (3)output voltage can be switched over to 15v or 30V by one-make switch, and is applicable to 1QV, too; (4)few external parts; (5)low supply current (at non-load, VCC=3V, Ta =25°C ICCQ1 =2.4mA VO=15V Mode) ICCQ2 =3.0mA VO=30V Mode); (6)operating supply voltage range (Ta=25°C) VCC1 =1.8~10V, (VO = 15V Mode) VCC2 (opr) = 2.0~10V, (VO =30V Mode).

The absolute maximum ratings of TA81Z6S are (1)supply voltage VCC: 12V; (2)output voltage VO: 35V; (3)power dnssrpatnon PD (Note): TA81Z6S, 750/TA81Z6F, 400 mW; (4)operating temperature Topr: -25~75°C; (5)storage temperature Tstg: -55~150°C(Note) Derated above Ta=25°C in the proportion of 6mW/°C for TA8126S, and of 3.2mW/°Cfor TA8126F