BLF SRK FET V2 - 46mm
author: MTN
2 layer board of 1.89 x 1.83 inches (48.0 x 46.4 mm)
Uploaded:
April 28th 2015
Shared:
April 28th 2015
Total Price:
$17.25
This is an update on the original BLF SRK FET driver which was designed by Mattaus, and inspired by the work of Comfy…
This is an update on the original BLF SRK FET driver which was designed by Mattaus, and inspired by the work of Comfychair and several other BLF members.
REQUIRED Parts List (1S Input):
- FET: D2PAK
- RGATE: 0805 - 10 ohm - 50 ohm
- R1: 19.1K (1S input)
- R2: 4.7K
- U1: attiny13a-SSU
- C1: 0805 - 10uF - X5R (or better)
- D1: SOD-323 Schottky Diode
REQUIRED Parts List (2S+ Input):
- FET: D2PAK
- RGATE: 0805 - 10 ohm - 50 ohm
- R1: 36K (2S-3S input)
- R2: 4.7K
- U1: attiny13a-SSU
- C1: 0805 - 10uF - X5R (or better)
- CLDO: 0805 - 10uF - X5R (or better)
- LDO: Many fit - choose on price and availability
OPTIONAL Parts:
- 7135: Optional 7135 for secondary PWM output (Pin 5)
- OTC (for clicky FW use): 0805 - 1uF - X7R
- Ctemp: 0805 Capacitor
- RT1; RT2; T-; T+: Connection points and related component pads for external temperature sensor
Changes from original:
- Additional vias
- Deleted L1 and D1 pads (they were mostly unused)
- Added more LED pads
- Added optional 7135 on secondary PWM channel
- Added optional LDO for 2S+ use
- Changed ADC LVP feed point; now connected directly to input
- No more jumpers or solder bridges needed for switch pads
- SW- and several other low current pads now have thermal relief for easier soldering
- Added optional OTC pad for clicky use
- Added external temperature sensor provisions
- Added gate resistor / pulldown resistor for big FET
This is an update on the original BLF SRK FET driver which was designed by Mattaus, and inspired by the work of Comfy…
This is an update on the original BLF SRK FET driver which was designed by Mattaus, and inspired by the work of Comfychair and several other BLF members.
REQUIRED Parts List (1S Input):
- FET: D2PAK
- RGATE: 0805 - 10 ohm - 50 ohm
- R1: 19.1K (1S input)
- R2: 4.7K
- U1: attiny13a-SSU
- C1: 0805 - 10uF - X5R (or better)
- D1: SOD-323 Schottky Diode
REQUIRED Parts List (2S+ Input):
- FET: D2PAK
- RGATE: 0805 - 10 ohm - 50 ohm
- R1: 36K (2S-3S input)
- R2: 4.7K
- U1: attiny13a-SSU
- C1: 0805 - 10uF - X5R (or better)
- CLDO: 0805 - 10uF - X5R (or better)
- LDO: Many fit - choose on price and availability
OPTIONAL Parts:
- 7135: Optional 7135 for secondary PWM output (Pin 5)
- OTC (for clicky FW use): 0805 - 1uF - X7R
- Ctemp: 0805 Capacitor
- RT1; RT2; T-; T+: Connection points and related component pads for external temperature sensor
Changes from original:
- Additional vias
- Deleted L1 and D1 pads (they were mostly unused)
- Added more LED pads
- Added optional 7135 on secondary PWM channel
- Added optional LDO for 2S+ use
- Changed ADC LVP feed point; now connected directly to input
- No more jumpers or solder bridges needed for switch pads
- SW- and several other low current pads now have thermal relief for easier soldering
- Added optional OTC pad for clicky use
- Added external temperature sensor provisions
- Added gate resistor / pulldown resistor for big FET
-
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Hey there! Before ordering, make sure you have all all the info you need to complete and use this design. This usually means a component list, and sometimes additional information such as assembly notes, source code, or usage guides.Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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