BD8627EFV_09 Datasheet, PDF (9/13 Pages) Rohm – FET Controller Type 3ch System Power Supply ICs

BD8627EFV
Technical Note
OSC oscillation frequency setting function
The output oscillation frequency can be set by connecting resistance between terminal RT (20 pins) and SGND
(range = 250kHz - 1MHz)
The relation between RT terminal resistance and the oscillation frequency follows Fig.4.
10000
1000
100
10
10
100
1000
10000
RT terminal resistance [kΩ]
Fig. 4 RT resistance-oscillation frequency
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9/12
2009.05 - Rev.A