Overview
The SRC0GS22D from STMicroelectronics is a smart push-button on/off controller designed with advanced features such as Smart Reset™ and power-on lockout. This device is engineered to monitor the state of connected push-buttons and ensure sufficient supply voltage, making it ideal for various applications requiring secure and efficient power management.
The controller allows for the control of power through MOSFET transistors, DC-DC converters, or regulators via an enable output. It features a precise 1.5 V voltage reference with 1% accuracy and supports industrial operating temperatures from -40 to +85 °C. The device is available in a compact TDFN12 2 x 3 mm package, enhancing its suitability for space-constrained designs.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 1.6 V to 5.5 V |
| Standby Current | 0.6 µA |
| Smart Reset™ Assertion Delay Time | Adjustable, driven by external CSRD |
| Power-up Duration | Determined primarily by push-button press |
| Input ESD Protection | ±15 kV (air discharge), ±8 kV (contact discharge) |
| Enable Output Type | Active high or active low |
| Voltage Reference Accuracy | 1.5 V with 1% accuracy |
| Operating Temperature Range | -40 to +85 °C |
| Package Type | TDFN12 2 x 3 mm |
Key Features
- Operating voltage range of 1.6 V to 5.5 V
- Low standby current of 0.6 µA and normal operation current of 6 µA
- Adjustable Smart Reset™ assertion delay time driven by external CSRD
- Debounced PB and SR inputs
- ESD inputs withstand voltage up to ±15 kV (air discharge) and ±8 kV (contact discharge)
- Active high or active low enable output option for controlling MOSFET, DC-DC converter, or regulator
- Secure startup, interrupt, Smart Reset™, or power-down driven by push-button
- Precise 1.5 V voltage reference with 1% accuracy
Applications
- Wearable devices
- Activity trackers
- Smartwatches
- Smartglasses
Q & A
- What is the operating voltage range of the SRC0GS22D?
The operating voltage range is from 1.6 V to 5.5 V.
- What is the standby current of the SRC0GS22D?
The standby current is 0.6 µA.
- How is the Smart Reset™ assertion delay time adjusted?
The Smart Reset™ assertion delay time is adjustable and driven by an external CSRD.
- What type of package is the SRC0GS22D available in?
The device is available in a TDFN12 2 x 3 mm package.
- What is the operating temperature range of the SRC0GS22D?
The operating temperature range is from -40 to +85 °C.
- What is the accuracy of the voltage reference in the SRC0GS22D?
The voltage reference has an accuracy of 1% at 1.5 V.
- How does the device handle ESD protection?
The device's inputs withstand ESD voltages up to ±15 kV (air discharge) and ±8 kV (contact discharge).
- What types of outputs does the enable output support?
The enable output supports both active high and active low options.
- What are some common applications for the SRC0GS22D?
Common applications include wearable devices, activity trackers, smartwatches, and smartglasses.
- How does the device handle power-up and power-down?
The device's power-up and power-down are controlled by the push-button press, with options for interrupt, Smart Reset™, or power-down.
