UPS Scap 5V5A: Difference between revisions

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|-

|'''Power input'''||

* ~~'''12Vdc ±~~ 5~~%'''~~(~~Warning: Over-voltage will damage your HDDs!~~)

*DC 9-24V wide voltage input, DC 5.5-2.1 interface;

*~~Intput Ripple & Noise~~: ~~200mVp~~-~~p Max~~

*USB-C PD interface, PD negotiated voltage 12V, please be sure to use PD or QC power supply; input power recommended ≥30W;

(Choose one of the two interfaces)

'''Power input is split into two paths:'''

* One path steps down to 5.2V to directly power the target board;

* The other path charges the supercapacitor. For safety, charging stops after reaching 5.2V.

These two paths are isolated by a circuit, therefore they will not output simultaneously.

|-

|'''Output'''||

* 5V5A output, using high-efficiency boost and buck DC-DC power chips;

*Dual interfaces:''' USB-C '''and''' USB-A''', both sharing 5V5A; Specifically designed for powering Raspberry Pi 5;

* USB-C features PD handshake negotiation, enabling the 5V5APD handshake protocol for Raspberry Pi 5;

* USB-A;

* Both interfaces can also be used to connect to other development boards such as Raspberry Pi 4B/3B/Orange Pi;

|-

|'''Energy storage unit'''||

* 100F supercapacitor (series structure, maximum fully charged voltage 5.4V, safe charging cut-off voltage 5.2V)

|-

|'''~~Recommended power supply via DC jack~~'''||

| '''Charging time''' || Approximately 15 minutes to fully charge (under 30W PD power supply conditions)

* 8 x SATA 2.5" HDD/SSD : '''12V 10A adapter x1'''

* 4 x SATA 3.5" HDD : '''12V 10A adapter x1'''

* 8 x SATA 3.5" HDD : '''12V 10A adapter x2'''

(~~Note: 3.5" HDDs draw high inrush current on startup. 8×3.5" HDD setups require two identical-spec 12V DC adapters connected in parallel via the dual DC jacks.~~)

|-

|''~~'Recommended power supply via 4-pin ATX connector~~'''||

| ''Current and Voltage Detection''' ||

* '''12V 20A'''

Identifies charging and discharging status;

~~⚠️ CRITICAL WARNING: Never connect a DC power adapter AND an ATX power supply to~~ the ~~board simultaneously~~.~~~~

voltage and current of the supercapacitor can be read via I2C interface, and the direction of the current indicates whether it is charging or discharging;

I2C interface allows reading capacitor voltage and charging/discharging current.

| '''Power-down detection'''||

One power-down detection pin;

a logic level of 3.3V indicates the presence of external power input, and a logic level of 0V indicates that the external power is off. For Raspberry Pi, external power loss can be detected via GPIO26 (40-pin);

for other development boards, it can be connected to a GPIO pin.

|-

| '''Wake-up function''' || Power-off self-start circuit (Raspberry Pi 5 exclusive).

|-

| '''~~Raspberry Pi Power Supply~~''' || ~~5.1V ±5%~~

|'''Physical Switches'''||

Main power switch + quick discharge button;

|-

1. One power switch to shut off output for safe module installation and removal;

~~| '''Ports & Connectors''' ||~~

* '''2 × DC 5.~~5×2.1mm~~ power ~~input jacks''' (parallel design)~~

* '''1 × ATX 4-pin power in/out connector '''

~~（Input: powers the whole system when connected~~ to ~~an ATX power supply~~

~~Output: provides 12V~~ for ~~extra drives when powered via DC jacks）~~

2. One discharge button for quick discharge and safe storage; for example, after use, it is recommended to press this button to discharge the supercapacitor for safety.

* 1 × 16-pin 0.5mm pitch PCIe FFC connector

* 8 × 7-pin SATA 3.~~0 data connectors~~

* 1 × 4-pin function header

|-

| '''~~4-pin Function Header Pinout~~'''||

| '''Status Indicators''' || 1 power indicator + 5 battery indicator lights + 1 discharge indicator light

* Pin1 = external momentary power ~~switch~~

* Pin2 = fan PWM (Connecting to Raspberry Pi 5 ~~Fan)~~

* Pin3 = ground

* '''Pin4 = 12V power output

|-

| '''~~PCB Size~~''' || ~~100mm × 86mm~~

| '''Product dimensions''' || 85×56mm; Operating

|-

~~|'''PCIe cable length'''|| 37mm~~

|}

@@ Line 41: / Line 41: @@
 |-
 |'''Power input'''||
-* '''12Vdc ± 5%'''<font color=red>(Warning: Over-voltage will damage your HDDs!)</font>
+*DC 9-24V wide voltage input, DC 5.5-2.1 interface;
-*Intput Ripple & Noise: 200mVp-p Max
+*USB-C PD interface, PD negotiated voltage 12V, please be sure to use PD or QC power supply; input power recommended ≥30W;
+<font color=red>(Choose one of the two interfaces)</font>
+'''Power input is split into two paths:'''
+* One path steps down to 5.2V to directly power the target board;
+* The other path charges the supercapacitor. For safety, charging stops after reaching 5.2V.
+These two paths are isolated by a circuit, therefore they will not output simultaneously.
+|-
+|'''Output'''||
+* 5V5A output, using high-efficiency boost and buck DC-DC power chips;
+*Dual interfaces:''' USB-C '''and''' USB-A''', both sharing 5V5A; Specifically designed for powering Raspberry Pi 5;
+* USB-C features PD handshake negotiation, enabling the 5V5APD handshake protocol for Raspberry Pi 5;
+* USB-A;
+* Both interfaces can also be used to connect to other development boards such as Raspberry Pi 4B/3B/Orange Pi;
+|-
+|'''Energy storage unit'''||
+* 100F supercapacitor (series structure, maximum fully charged voltage 5.4V, safe charging cut-off voltage 5.2V)
 |-
-|'''Recommended power supply via DC jack'''||
+| '''Charging time''' || Approximately 15 minutes to fully charge (under 30W PD power supply conditions)
-* 8 x SATA 2.5" HDD/SSD : '''12V 10A adapter x1'''
-* 4 x SATA 3.5" HDD : '''12V 10A adapter x1'''
-* 8 x SATA 3.5" HDD : '''12V 10A adapter x2'''
-(Note: 3.5" HDDs draw high inrush current on startup. 8×3.5" HDD setups require two identical-spec 12V DC adapters connected in parallel via the dual DC jacks.)
 |-
-|'''Recommended power supply via 4-pin ATX connector'''||
+| ''Current and Voltage Detection''' ||
-* '''12V 20A'''
+Identifies charging and discharging status;
-<font color=red>⚠️ CRITICAL WARNING: Never connect a DC power adapter AND an ATX power supply to the board simultaneously.</font>
+voltage and current of the supercapacitor can be read via I2C interface, and the direction of the current indicates whether it is charging or discharging;
+I2C interface allows reading capacitor voltage and charging/discharging current.
+| '''Power-down detection'''||
+One power-down detection pin;
+a logic level of 3.3V indicates the presence of external power input, and a logic level of 0V indicates that the external power is off. For Raspberry Pi, external power loss can be detected via GPIO26 (40-pin);
+for other development boards, it can be connected to a GPIO pin.
+|-
+| '''Wake-up function''' || Power-off self-start circuit (Raspberry Pi 5 exclusive).
 |-
-| '''Raspberry Pi Power Supply''' || 5.1V ±5%
+|'''Physical Switches'''||
+Main power switch + quick discharge button;
-|-
+. One power switch to shut off output for safe module installation and removal;
-| '''Ports & Connectors''' ||
-*  '''2 × DC 5.5×2.1mm power input jacks''' (parallel design)
-*  '''1 × ATX 4-pin power in/out connector '''
-（Input: powers the whole system when connected to an ATX power supply
-Output: provides 12V for extra drives when powered via DC jacks）
+. One discharge button for quick discharge and safe storage; for example, after use, it is recommended to press this button to discharge the supercapacitor for safety.
-*  1 × 16-pin 0.5mm pitch PCIe FFC connector
-*  8 × 7-pin SATA 3.0 data connectors
-*  1 × 4-pin function header
 |-
-| '''4-pin Function Header Pinout'''||
+| '''Status Indicators''' || 1 power indicator + 5 battery indicator lights + 1 discharge indicator light
-* Pin1 = external momentary power switch
-* Pin2 = fan PWM (Connecting to Raspberry Pi 5 Fan)
-* Pin3 = ground
-* '''Pin4 = 12V power output
 |-
-| '''PCB Size''' || 100mm × 86mm
+| '''Product dimensions''' || 85×56mm; Operating
 |-
-|'''PCIe cable length'''|| 37mm
 |}