| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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30,000 pcs
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30000 pcs | On Request | 1 | On Request | On Request | 13+ | On Request | On Request |
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The BS804B from HOLTEK is a versatile 4-key touch key device capable of detecting human body contact through external touch pads. It operates within a voltage range of 2.2V to 5.5V and boasts an ultra-low standby current of 1.5uA at 3V.
Key features include auto-calibration for reliable touch detection and a choice of Level-hold or Toggle output types. The device supports both one-key and any-key wake-up modes, which can be set via pins or serial command. Its open-drain NMOS output and serial interface facilitate easy communication with external MCUs for setup and status monitoring.
Designed for high reliability, the BS804B incorporates special internal circuitry for excellent power noise rejection, minimizing false detections in adverse environmental conditions. It is supplied in an 8SOP package suitable for surface mounting.
This touch key device offers a simple and effective solution for implementing touch switches in a wide variety of applications, requiring a minimum number of external components due to its high integration level.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The BS804B operates from 2.2V to 5.5V.
The BS804B supports 4 touch keys.
The typical standby current is 1.5µA at 3V.
The output can be configured as level-hold or toggle, with open-drain NMOS.
The BS804B is available in an 8SOP surface-mount package.