지능형 TPS61200 스텝업 모듈 3.3V -AAA, AA 배터리
(smôl Power Board AAA)
개요
- 본 제품은 지능형 TPS61200 스텝업 모듈 3.3V -AAA, AA 배터리 입니다.
- 하나나 두개의 AAA 혹은 AA 배터리를 3.3V로 부스트 시켜주는 제품입니다.
- TPS61200 레귤레이터를 장착하고 있으며, AVR ATtiny43 마이크로컨트롤러를 장착하고 있어 모듈을 초저전력 deep sleep 모드로 진입시킬 수 있습니다.
특징
-
Boost Regulator:
- TPS61200
- IOUT (max) @ VOUT = 3.3V, VIN = 1.5V: ~550mA
- IOUT (max) @ VOUT = 3.3V, VIN = 3.0V: ~1500mA
- IQ: 55µA
On-Board Microcontroller:
- ATtiny43U 8-bit AVR Microcontroller
- 4KBytes Flash
- 64Bytes EEPROM
- 256Bytes SRAM
- On-chip Boost Converter (VIN (min): 0.7V)
Sleep Current Draw:
- 12µA (with ATtiny43 in Power-Down Mode, VIN = 3.0V) (measured by Otii Arc)
smôl Specifics:
- Interface: I2C
- ATtiny43 Default Address: 0x50
- PROC_PWR_EN:
- The power board pulls PROC_PWR_EN low to disable the regulator on the processor board
Dimensions:
- Length: 1.60" (40.6mm)
- Width: 0.42" (10.7mm)
- Height: 0.29" (7.4mm) max.
- Weight: 1.6g (0.06oz)
- PCB thickness: 0.8mm
- TPS61200
-
The smôl Power Board AAA is an intelligent power board for the smôl ecosystem. Designed to boost the voltage from one or two AAA or AA cells up to 3.3V, you would expect this board to have a TPS61200 regulator on it, and indeed it does. (That's the same regulator we use on our LiPower - Boost Converter.) But you probably wouldn't expect it to have an AVR ATtiny43 microcontroller on it. So why have we included one?
This is an intelligent power board for smôl. The power board takes control of the 3.3V power for the whole smôl stack. The processor board can then instruct the power board to put the entire smôl stack into deep sleep for a pre-defined interval. Sleep intervals of 10's of milliseconds to several days are possible. In deep sleep, the only device left powered is the ATtiny43 and that reduces the current draw to 12µA. Yes, you read that right, 12 microamps! smôl makes it possible for your battery life to be measured in months not days! We used the fantastic Otii Arc Power Analyzer to help us reduce the sleep current as much as possible.
Our smôl Power Board Arduino Library has examples to get you started.
문서
-
smôl Power Board AAA Documentation:
- Schematic
- Eagle Files
- Hookup Guide
- GitHub Hardware Repo
- SparkFun smôl Power Board Arduino Library
- Arduino Examples
Boost Regulator:
- Datasheet (TPS61200)
Microcontroller:
- Datasheet (ATtiny43U)
smôl Documentation: