ZIPTHEFISH (PI) UPS V1.2 Specifications
Designed for PI 2 B+ and PI 3 (40 pin GPIO) as an alternative power supply and battery backup. Additional boards, including HAT compliant, can be mounted on top.
- Supply voltage: 12 – 16 Vdc / 1.5 A
- Nominal output current: - 3A dc
- Maximum output current: 3.5A (5 ms pulse)
- Output voltage: 5.1Vdc +/- 1 %
- Efficiency: better than 92% in the range 0.1 – 3A
- Load & line regulation: <= 1%
- Output undervoltage and overvoltage protection:
- OVP 125%
- UVP 65%
- Supply voltage ( via micro USB ) 5 – 5.1 Vdc +/- 5% / well-regulated and protected wall adapter /
- Nominal current: - 3A dc
- Supply voltage ( via additional input – solderable ) : 5.1 Vdc +/- 5% / wall adapter or any well-regulated and protected 5.1Vdc/3A source
- Battery backup
- Output voltage: 5.1Vdc +/- 1 %
- Nominal output current: - 3A dc
- Up to 97% Efficiency
- Output over voltage protection: 5.80 V typical
- Output line and load regulation: 0.06 %/V , 0.06 %/A
- Battery : single cell Li-Ion or Li-polymer, 300 mAh minimum, capable of up to 6A pulse current, 4.2V max. charge voltage
- With or without onbattery protection chip
- Embedded Battery Charger
- 300 mA charge current (50mA up to 1A under request)
- 4.2V max. charge voltage
- Optional Battery Temperature Monitoring ( jumper selectable, requires temperature sensor on battery)
- Temperature sensor - 10kOhm NTC
- Continuous battery monitoring by high-accuracy current and voltage regulation
- Battery charge in three phases: conditioning, constant current, and constant voltage.
- Automatically restarts the charge if the battery voltage falls below 4.1V +/- 15 mV
- Charge is terminated based on minimum current or temperature
- Charge status indication: 2 LEDs, software readable ( charging, ready, battery disconnected and more )
- Battery in use indication: 1 LED, software readable
- External power not available indication: software readable
- Onboard battery protection:
- Battery voltage between 3.3 – 3.4 V: software readable (interrupt)
- Battery voltage <= 3V : Battery power supply is disconnected within 1us
- Reverse battery connection
- True disconnection during shutdown, fault condition or external power supply available
- Possible shut down under software control
- Additional battery backup control
- With external power supply disconnected: Manual ON/OFF
- Embedded Real time clock chip
- Typical accuracy: +/-3.5 sec. per day at 25 0C
- Software clock calibration. Can adjust timekeeping to within ±4 parts per million (±10 seconds per month)
- Permanent battery backup
- Provides year, month, day, weekday, hours, minutes, seconds, and leap year correction
- Timekeeping down to 1.0 V
- Low supply current: typical 0.250 uA
- Oscillator stop detection function (as fault detection)
- Internal Power-On Reset
- Optional Eq3 radio module
- Additional 5V output
- Load capacity - up to all available from the board (excluding PI cunsumption and charging current)
- Inductive loads acceptable up to 1A
- Software controllable
- Unfused
- Operating temperature range: from -40 0C to +85 °C
- Size – 85 x 56 x 10 mm (exactly as PI2/PI3)
- Mounting holes: 4 x 2.75 mm (exactly as PI2/PI3)