BL108418CZ 参数 Datasheet PDF下载

BL1084

Fig 4. Typical Application of BL1084

EXPLANATION

The output voltage of adjustable version satisfies this followed equation:

V_out=V_Ref× (1+R₂/R₁)+I_Adj×R₂.

The second term I_Adj×R₂can be ignored since the adjustable pin current I_Adj(~ 50µA) is much less than the

current through R₁(~ 4mA).

The value of R₁is preferred in the range of 120Ω～200Ω and the total output current of the adjustable

version of BL1084 needs to exceed 10mA to assure normal chip operation.

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