SP6655EB Datasheet, PDF (3/4 Pages) Sipex Corporation – Evaluation Board Manual

Table 3. SP6655 PIN ASSIGNMENT
Pin
Name
PVin
Vin
BLON
D1
Pin Description
Input voltage power pin. Inductor charging current passes
through this pin.
Internal supply voltage. Control circuitry powered from this
pin.
Open drain battery low output – need to pullup to supply
externally. Vin - Vout below threshold pulls this node to
ground. Vin - Vout above threshold, this node is open.
Digital mode control input. See Table 1 for definition.
Pin
NO.
1
2
3
4
D0 Digital mode control input. See Table 1 for definition.
5
External feedback network input connection. Connect a
FB
resistor from FB to ground and FB to Vout to control the
output voltage. This pin regulates to the internal reference
6
voltage of 0.8V.
Vout
Output voltage sense pin. Used for internal timing and BLON
circuitry.
7
GND Internal ground pin. Control circuitry returns current to this pin. 8
PGND
Power ground pin. Synchronous rectifier current returns
through this pin.
9
LX
Inductor switching node. Inductor tied between this pin and
the output capacitor to create Vout.
10