Product Name Product Type Ordering Code Package
Hall Effect Latch TLI4946K SP000604398 PG-SC59-3-4
Hall Effect Latch TLI4946-2K SP000604328 PG-SC59-3-4
Hall Effect Latch TLI4946-2L SP000604336 PG-SSO-3-2
High Precision Hall Effect Latch TLI4946
Datasheet 7 Rev. 1.0, 2009-05-04
1 Product Description
1.1 Overview
The TLI4946xy is a high precision Hall Effect Latch with highly accurate
switching thresholds for ambient operating temperatures up to 125°C.
The TLI4946K and the TLI4946-2K is available in a PG-SC59-3-4
package, the TLI4946-2L in a PG-SSO-3-2 package.
1.2 Features
• 2.7 V to 18 V supply voltage operation.
• Operation from unregulated power supply.
• High sensitivity and high stability of the magnetic switching points.
• High resistance to mechanical stress by active error compensation.
• Reverse battery protection (-18 V).
• Superior temperature stability.
• Low jitter (typically 1 µs).
• High ESD performance (± 4 kV HBM).
• Digital output signal (open-drain).
• Not suitable for automotive applications
1.3 Target Applications
The TLI4946xy is ideally suited to detect the rotor position in Brushless DC (BLDC) Motors used in industrial and
consumer applications, such as: air conditioning systems, pumps, washing machines, DVD players, rolling shutter,
etc. The sensor also provides a reliable switching for index counting with small pole wheels and large air gaps.
The TLI4946xy can also be used for index counting.
