STMicroelectronics STM6600 Smart Push-Button On / Off Controller

Safe, Simple Control of Applications Using Push Buttons

STMicroelectronics STM6600 and STM6601 Smart Push-Button On / Off Controllers with Smart Reset™ and power-on lockout protect against the hazards faced by battery-operated devices, such as smart phones, digital cameras, and media players. STM6600 and STM6601 On / Off Controllers enable and disable power for the application depending on push-button states, signals from the processor, and battery voltage. If the battery is excessively discharged or a fault is detected in the power supply, the IC blocks power-up. These STMicroelectronics ICs also implement smart-reset capabilities to enable users safely recover gadgets that have frozen or crashed during normal operation. STM6600 and STM6601 Smart Push-Button On / Off Controllers connect directly to the power and reset buttons and have circuitry to prevent external interference such as electrostatic discharges. These STMicroelectronics devices feature a very low current consumption of 6 µA in normal operation and only 1 µA during standby, resulting in virtually no battery drain when the application is turned off.

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Features

Operating voltage 1.6 V to 5.5 V
Low standby current of 1 μA
Adjustable smart reset assertion delay time driven by external CSRD
Power-up duration determined primarily by push-button press (STM6600) or by fixed time period, tON_BLANK (STM6601)
Debounced PB and SR inputs
PB and SR ESD inputs withstand voltage up to ±15 kV (air discharge) ±8 kV (contact discharge)
Active high or active low enable output option (EN or EN) provides control of MOSFET, DC-DC converter, regulator, etc.
Secure startup, interrupt, smart reset or power down driven by push-button
Precise 1.5 V voltage reference with 1% accuracy