MMDFS2P102 Datasheet, PDF (10/12 Pages) Motorola, Inc – P-Channel Power MOSFET with Schottky Rectifier 20 Volts

MMDFS2P102
TYPICAL APPLICATIONS
MULTIPLE BATTERY CHARGERS
Buck Regulator/Charger
Q1
LO
+
Vin
D1
CO
–
Q2
D2
Q3
D3
BATT #1
BATT #2
Li–lon BATTERY PACK APPLICATIONS
Battery Pack
PACK +
Li–Ion
BATTERY
CELLS
SMART IC
DISCHARGE CHARGE
Q1
Q2
SCHOTTKY SCHOTTKY
PACK –
• Applicable in battery packs which require a high current level.
• During charge cycle Q2 is on and Q1 is off. Schottky can reduce power loss during fast charge.
• During discharge Q1 is on and Q2 is off. Again, Schottky can reduce power dissipation.
• Under normal operation, both transistors are on.
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