| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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6,108 pcs
|
6108 pcs | On Request | 1 | On Request | On Request | 1649+5 | On Request | On Request | |
|
3,660 pcs
|
3660 pcs | On Request | 1 | On Request | On Request | 17+ | On Request | On Request |
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The Texas Instruments TMP821DR is a two-phase half-wave motor predriver designed for applications such as fan motors. This device operates within a voltage range of 4V to 30V and is housed in a compact 8-SOIC package.
Key features include rotor lock protection and tach/FG feedback, enabling robust motor control. The TMP821DR utilizes differential hall effect sensors for commutation signals, simplifying the power circuit design. Its integrated lock detection and rotational speed sensing mechanisms, along with automatic restart functionality, enhance its utility in various fan applications.
The device is suited for fan motors with a push-pull winding configuration. The small pin count of the TMP821DR makes it easy to integrate into designs, reducing the number of external components required. Hall amplifier inputs feature hysteresis for improved signal integrity.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.42 | $0.42 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The supply voltage range is 4V minimum to 30V absolute maximum.
It is designed for brushed DC motors.
The operating temperature range is -40°C to 100°C.
The device is offered in an 8-SOIC (0.154", 3.90mm Width) surface-mount package.
Yes, it includes rotor lock protection as a built-in feature.
The output configuration is pre-driver low side with two drivers.
It uses sensored, trapezoidal control topology.