BLF driver DDm-M6/SRK [rev02a][untested]
author: DEL
2 layer board of 1.82 x 1.82 inches (46.2 x 46.2 mm)
Uploaded:
January 08, 2017
Shared:
January 09, 2017
Total Price:
$16.50
BLF flashlight driver for M6/SRK lights, DD+CC
Features
- 46 mm diameter.
- Two channel output: Direct drive + current regulator LED driver.
- R5, R3, R4, C2 for enhanced stability.
- Oversized heat plane for the 7135s with good thermal link to the ground ring.
- Generous 0603 pad sizes through-out that will accept 0805 parts as well.
- Universal MCU pads, Tiny13-Tiny85 all fit.
- Generous wire pads for emitters, e-switch and side indicator LED.
Revision changes
- Added pads for up to eight 7135 regulators
- Up-size C1, D1 pads to 0805
- Add C3 for optional load decoupling
Suggested parts list
- U1: Atmel Attiny25, SSU or SSN package
- U2-U9: 7135 350 mA LED driver
- Q1: Vishay SiR800DP
- C1: 10 uF, X5R or better, 0805
- C2: 100 nF, X7R or better, 0603
- C3: Optional, 10 uF, X5R or better, 0805
- D1: Schottky diode, 200 mA 20 V or better, 0805 or SOD323
- R1: 330 kohm, 1%, 0603
- R2, R3: 100 kohm, 1%, 0603
- R4: 47 ohm, 5%, 0603
- R5: 4.7 ohm, 5%, 0603
BLF flashlight driver for M6/SRK lights, DD+CC
Features
- 46 mm diameter.
- Two channel output: Direct drive + current regulator LED driver.
- R5, R3, R4, C2 for enhanced stability.
- Oversized heat plane for the 7135s with good thermal link to the ground ring.
- Generous 0603 pad sizes through-out that will accept 0805 parts as well.
- Universal MCU pads, Tiny13-Tiny85 all fit.
- Generous wire pads for emitters, e-switch and side indicator LED.
Revision changes
- Added pads for up to eight 7135 regulators
- Up-size C1, D1 pads to 0805
- Add C3 for optional load decoupling
Suggested parts list
- U1: Atmel Attiny25, SSU or SSN package
- U2-U9: 7135 350 mA LED driver
- Q1: Vishay SiR800DP
- C1: 10 uF, X5R or better, 0805
- C2: 100 nF, X7R or better, 0603
- C3: Optional, 10 uF, X5R or better, 0805
- D1: Schottky diode, 200 mA 20 V or better, 0805 or SOD323
- R1: 330 kohm, 1%, 0603
- R2, R3: 100 kohm, 1%, 0603
- R4: 47 ohm, 5%, 0603
- R5: 4.7 ohm, 5%, 0603
