This post explains for the MOSFET.
The Part Number is FS8205A.
The function of this MOSFET is Dual N-Channel MOSFET.
The package is TSSOP 8 Pin Type.
Manufacturer: Fortune Semicondcutor ( www.ic-fortune.com )
This is 20V, 6A, Dual N-Channel Enhancement Mode Power MOSFET.
1. Low On-resistacne
(1) Rds(on) = 25 mΩ MAX. (Vgs = 4.5V, Id = 4A )
(2) Rds(on) = 35 mΩ MAX. (Vgs = 2.5V, Id = 3A )
Absolute Maximum Ratings ( Ta=25°C )
1. Drain-Source Voltage : VDS = 20 V
2. Gate-Source Voltage : VGS= ±12 V
3. Continuous Drain Current : ID = 6 A
4. Pulsed Drain Current : IDM = 25 A
5. Total Power Dissipation : PD = W
6. Storage Temperature Range : TSTG = -55 to 150 ℃
7. Operating Junction Temperature Range : TJ = -55 to 150 ℃
1. Li-ion battery management appplications