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Std edition IP5306 LiPo Charger Booster SMD

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License: CC-BY-SA 3.0

Published Time: 2022-07-13 02:42:22
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Description

LiPo battery charger, protector and 5V booster based on the IP5306 featuring:

  • synchronous switch-mode charging with up to 2.1A / 91% efficiency,
  • discharging with up to 2.4A,
  • 5V boost converter with up to 92% efficiency,
  • integrated power-path management (charging battery and 5V output at the same time),
  • voltage based fuel gauge indication with 4 LEDs,
  • on/off key,
  • smart load detector (switching to standby mode automatically),
  • less than 100uA standby current,
  • charging/boosting with a single inductor,
  • output over-current, over-voltage, short-circuit protection,
  • input over-voltage, over-current protection,
  • battery over-charge, over-drain, over-current protection,
  • thermal shutdown.

Key functions:

  • If button is pushed longer than 30ms but shorter than 2s, IP5306 will identify the action as short push. Short push will activate state of charge (SOC) indicator LEDs and step-up converter.
  • If two short pushes are detected within 1s, IP5306 will deactivate step-up converter, SOC indicator LEDs and PWR LED (flashlight).
  • If button is pushed longer than 2s, IP5306 will identify the action as long push. Long push will enable or disable PWR LED (flashlight).
  • If button is pushed shorter than 30ms, IP5306 will ignore the action.

IMG_20200111_160606_x.jpg IP5306_efficiency_x.png

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This work is licensed under Creative Commons Attribution-ShareAlike 3.0 Unported License. (http://creativecommons.org/licenses/by-sa/3.0/)

design drawing
schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 Connector VOUT,VIN,BAT HDR-1X2/2.54 3
2 10u C1,C7,C6,C2 0805 4
3 22u C5,C4,C3 0805 3
4 1uH L1 IND-706628_IND_0630_VAN 1
5 TS24CA KEY2 SW-SMD_TS24CA 1
6 USB PWR Connector USB USB PWR CONNECTOR 1
7 20R R2 0805 1
8 2R R3,R4 0805 2
9 10k R1 0805 1
10 IP5306 U1 SOP-8_L4.9-W3.9-P1.27-LS6.0-BL-EP 1
11 PWR LED5 LED-0805 1
12 50% LED2 LED-0805 1
13 75% LED3 LED-0805 1
14 25% LED1 LED-0805 1
15 100% LED4 LED-0805 1

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