Component(s) | Assigned To | Part Number + Link | Reasoning / Notes |
|---|---|---|---|
Input Fuse | Peak primary is 3.4A, so maybe set 5A limit? The chip already has some amount | ||
Current Sensing Resistor | Yes needed, since it would be nice to limit the current. Shunt resistor must be rated to trip at 35mV (datasheet) at current limit (6A), so find something near R = 5.83 Ohms | ||
Voltage Divider Network | Spec to 12.5V - 13V | ||
Secondary Rectifying Fet Network | TPH3R70APL,L1Q: 3.7mOhm RDSon, VGSth = 3.5V, 100V, 90A, | Datasheet specifies ‘6mOhm RSDon is appropriate for 20V 5A’, and at least 100V fet for 12V designs | |
Rectifying Diodes | US1D-A: 1A Diode, DO-214AC-SMA for low current applications (almost everything) (filter) | ||
Primary Clamp Cap | Bottlenecked by measuring primary leakage inductance | ||
Primary Overvoltage Zener | Not needed because all of BMS exists and the IC is rated for like >>200 V | ||
Secondary Overvoltage Zener | Zener should have breakdown voltage of around 1.25*Vout - 4.5 = 11.125 V | ||
Output Caps | https://www.digikey.ca/en/products/detail/cornell-dubilier-knowles/SLP153M025C4P3/1881947 https://www.digikey.ca/en/products/detail/samsung-electro-mechanics/CL21A226MAYNNNE/10479857 | Copy from old DCDC :)))) | |
BPP Cap | Done | Value given in datasheet. | |
U/OV Protection | Done | Value given in datasheet | |
Secondary Bypass Pin Cap | Done | Value given in datasheet | |
FWD Pin Resistor | Done | Value given in datasheet | |
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