AV02 CR2450
Features
A CR2450 coin cell battery holder is mounted on this leaf, which converts 3 V battery voltage to 3.3 V using a step-up power supply circuit and supplies 3.3 V to each leaf. A switch for turning on/off the 3.3V is mounted on this leaf. The AD converter for monitoring the battery voltage is mounted in this IC.
Specification
Dimension
| Item | Description |
|---|---|
| Dimension | W25.1×D25.5×H10.5mm |
Power Supply
| Item | Description |
|---|---|
| Part number | TPS61099YFFR |
| Battery voltage | 0.7～3.8V |
| Output voltage | 3.3V±2% |
| Controlling method | PWM/PFM Automatic switching control |
| Maximum output current | 300mA @3.3V to 5V |
| Protection circuit | Over current protection / Thermal shutdown |
AD Converter
| Item | Description |
|---|---|
| Part number | ADC081C027CIMK |
| Resolution | 8bit |
| Reference voltage | Vdd(3.3V) |
| Sample rate | 188.9kSPS(max) |
| Interfaces | I2C (Address: 0x50) |
Block diagram
Pinassign
Tips
About the switch
| Item | Description |
|---|---|
| Switch | Switch for turning on and off the 3.3v power |
Sample App
Document
Last modified 12.03.2021