BDXXFC0WEFJ Datasheet, PDF (11/20 Pages) Rohm – Low saturation with PDMOS output

BDxxFC0WEFJ series
●I/O equivalent circuit
Vcc terminal
EN terminal
EN
200kΩ 1kΩ
200k Ω
VOUT terminal
(BD00FC0WEFJ)
(BDxxFC0WEFJ)
Vcc
R3
OUT
OVUoT
R₁2
R₂1
FB terminal
(BD00FC0WEFJ)
OUT
FB
Datasheet
Figure 21.
●Output Voltage Configuration Method (BD00FC0WEFJ)
Please connect resistors R1 and R2 (which determines the output voltage) as shown in Figure 22.
Please be aware that the offset, due to the current that flows from the FB terminal, becomes large when resistors with large
values are used. Resistance values ranging from R2=5kΩ to 10kΩ is recommended.
VOUT
R1
≒ VFB 0.75V
IC
(TYP.) _{FB pin}
R2
Figure 22.
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TSZ22111 15 001
VOUT setting equation is,
≒ VOUT VFB×(R1+R2)/R2
Thoroughly check the constant settings on the application because
circuit current increases depending on connected resistor.
Resistance value of R2 is from 5kΩ to 10kΩ.
Determine R1 by adjusting with R2.
11/17
TSZ02201-0R6R0A600480-1-2
2013.08.27 Rev.001