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PSPi 4 PCB 2

1 year ago 2764
  • Description
  • Documents
  • BOM
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Description

Slight revision to the PSPi v4 board. This is a very rough work in progress. It's a total redesign with new schematics. The overall function will be the same to PCB 1.x, but the circuits are new. Changes include:

  • Improved battery charge detection. The board can detect how much amperage is being drawn from the battery during discharge, and can detect how much amperage is being provided to the battery during charge. This greatly improves the accuracy of the charge/discharge status.
  • No more pogo pins. The Pi will attach directly to the board, similarly to the attachment method of v3. The difference from v3 is that this board should have castellated holes that make the soldering process easier.
  • The LCD will shut off during reboots, preventing the appearance of a distorted image.
  • Better low-battery LED indication. No more blending of green and orange when the board is pulling a higher amperage.
  • Headphone board will be attached to the PCB, and will be breakaway.
  • Better audio filtering
  • Better power-on circuit. There will no longer be a condition where the system has to remain powered off for 3 seconds before powering it back on.

Documents

Sheet_1

old

PSPi v4.2

BOM

ID Name Designator Footprint Quantity
1 MP3302DJ-LF-Z U1 SOT-23-5 1
2 10KΩ R6,R1,R19 0805 3
3 100K R7,R10,R13,R15 0805 4
4 300KΩ(304) R11 0805 1
5 10uF C6,C10,C12,C3,C11,C19 0805 6
6 100nF(104) C7,C2 0805 2
7 1uF C8,C15,C16,C20,C4,C5,C14,C1,C13,C18 0805 10
8 BAT54C-7-F D2,D6,D7 SOT-23(SOT-23-3) 3
9 NC7SZ125M5X U4 SOT-23-5 1
10 33uH L3 0806 1
11 NC7SZ126M5X U13 SOT-23-5 1
12 INDUCTORLCD L2 INDUCTOR-SRN4012TA-4R7M 1
13 HEADER G$3 HEADER 1
14 Pi Zero With Pads G$1 PI_ZERO_WITH_PADS 1
15 74HC05D,118 U12 SOIC-14_150MIL 1
16 0.025Ω R2 1206 1
17 150Ω(1500) R17 0805 1
18 PSP Headphone Jack U7 PSP-HEADPHONE 1
19 JST-SH (6pin) J2 JST-SH-S-6 1
20 10Ω R3,R22 0805 2
21 FPC-10 0.5mm U2 10051922-1010EHLF 1
22 17-21/BHC-AP1Q2/3T LED1 LED_0805 1
23 SGM2019-2.5YN5G/TR U15 SOT-23-5 1
24 4.7KΩ(472) R12 0805 1
25 270Ω(271) R16 0805 1
26 PSP-WIFI U19 PSP-WIFI 1
27 FPC-24 U9 10051922-2410EHLF 1
28 TP4056 U11 SOP-8_EP_150MIL 1
29 MCP23017T-EML U14 MCP23017 - QFN 1
30 30Ω(30R0) R9 0805 1
31 APX803-31SRG-7 U3 SOT-23(SOT-23-3) 1
32 10nF(103) C17 0805 1
33 SS14F_C64880 D1,D3 SMAF 2
34 AO4622-2 Q2 SOIC-8_150MIL 1
35 PAM8302AADCR U6 SOP-8_150MIL 1
36 BATTERY-PSP U20 BATTERY-PSP 1
37 PSP-Joystick-Pads U18 PSP JOYSTICK PADS 1
38 ?K R5,R8,R18 0805 3
39 ADS1015QDGSRQ1 U8 MSOP10 1
40 JST SH 4 J1,J3 JST-SH-S-4 2
41 1KΩ(1000) R14 0805 1
42 100Ω(100R) R20,R21 0805 2
43 33nF C9 0805 1
44 TLV71210DBVR U5 SOT-23-5 1
45 BATTERY-JST U16 JST-PH-2 1
46 FPC-40 U10 FPC-40 1
47 1.2KΩ(1201) R4 0805 1

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