Motor driver for cordless power tools using low loss element TPH1R204PB within small package. The motor speed is controlled by MCU. Description of circuit design method.
Design Documents contain the documents below.
Design Data contains the contents listed below.
Part Number | Device Category | Portion Usage | Description |
---|---|---|---|
Small-signal Schottky barrier diode | Power section・2 | 40 V/1.5 A Schottky Barrier Diode, SOD-323HE(US2H) | |
Switching diode | Input voltage detector・1 | 100 V/0.25 A Switching diode, SOD-323(USC) | |
Power transistor for high-speed switching applications | Standby power reduction circuit・1 | PNP Bipolar Transistor, -50 V, -2 A, TSM | |
Power transistor for high-speed switching applications | Standby power reduction circuit・1 | NPN Bipolar Transistor, 120 V, 1.0 A, TSM | |
Transistor for low frequency small-signal amplification | Standby power reduction circuit・1 | NPN Bipolar Transistor, 50 V, 0.2 A, SOT-23(SOT23) | |
Power MOSFET (N-ch single 30V<VDSS≤60V) | Output section・6 | N-ch MOSFET, 40 V, 0.0012 Ω@10V, SOP Advance, U-MOSⅨ-H | |
Comparator (CMOS) | Motor current detector・2 | Dual Comparator (CMOS), 7 V, +/-3.5 V, SOT-765(US8) |