BD6520F,BD6522F
●Block diagram, pin configuration, pin description
(BD6520F)
VDDA
1
VDDB
2
SSCTL
3
+
UVLO
-
Oscillator
Charge
Pump
Technical Note
OUTA
8
OUTB
7
OUTC
6
Band
Gap
CTRL
4
Pin No.
1,2
3
4
5
6,7,8
Thermal
Shutdown
SQ
FF
R
VDDA 1
VDDB 2
SSCTL 3
CTRL 4
8 OUTA
7 OUTB
6 OUTC
5 VSS
VSS
5
Fig.58 Block diagram(BD6520F)
Symbol
VDDA, VDDB
SSCTL
CTRL
VSS
OUTA, OUTB, OUTC
Pin Function
Switch input pin
At use, connect each pin outside.
Soft start setting pin
Add external capacitor, it is possible to delay switch On, Off time.
Control input pin
Switch On at High level, switch Off at Low level.
Ground
Switch output pin
At use, connect each pin outside.
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2011.05 - Rev.B