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TDA5145
Datasheet
General description
The TDA5145 is a bipolar integrated circuit used to drive 3-phase brushless DC motors in full-wave mode. The device is sensorless (saving of 3 hall-sensors) using the back-EMF sensing technique to sense the rotor position. It includes bidirectional control, brake function and has a special circuit built-in to reduce the EMI (soft switching output stages).
Features
- Full-wave commutation (using push/pull drivers at the output stages) without position sensors
- Built-in start-up circuitry
- Three push-pull outputs:
- output current 2.0 A (typ.)
- built-in current limiter
- soft-switching outputs for low Electromagnetic Interference (EMI) - Thermal protection
- Flyback diodes
- Tacho output without extra sensor
- Motor brake facility
- Direction control input
- Reset function
- Transconductance amplifier for an external control transistor.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| TDA5145T/C3 | 9350 766 50512 | Volume production | SOT136-1
(SO28) | Tube Dry Pack | Standard Marking | TDA5145T/C3
| week 5, 2005 | |
| TDA5145T/C3 | 9350 766 50518 | Volume production | SOT136-1
(SO28) | Reel Dry Pack, SMD, 13" | Standard Marking | TDA5145T/C3
| week 49, 2004 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|
| TDA5145T/C3 | 9350 766 50512 | not available | |||||||
| TDA5145T/C3 | 9350 766 50518 | Order samples |
Applications
- General purpose spindle driver e.g.:
- Hard disk drive
- Tape drive
- Optical disk drive.
Design support
Application Notes
Parametrics/similar products
| Type number | Package | REMARKS | Max supply(v) | Output Current Limit(mA) | Power Dissipation(W) |
|---|---|---|---|---|---|
| TDA5145T/C3 | SOT136-1
(SO28) | 3-phase brushless, Brake function, bi-directional control, soft-switching outputs | 4~18 | 2 | 1.3 |
Similar products
TDA5145
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