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DIO5508XS8

Public Made by Adom

by adom

DIOO Battery Management, SOIC-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DIO5508XS8

DIOO · Battery Management · SOIC-8-EP

DIO5508XS8 from DIOO, in a SOIC-8-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 TEMP input Temperature sense input connected to the battery NTC; charging is suspended if TEMP is below 45% or above 80% of VIN and resumes when it is between 45% and 80%, and grounding this pin disables the temperature sense function.
2 PROG bidirectional Sets the constant charge current via IBAT = (1/RPROG)*1000, monitors charge current, and shuts the chip down when the pin is floating.
3 GND power_in Ground terminal.
4 VCC power_in Positive input supply voltage, with a recommended input supply range of 4.5 to 5.5 V.
5 BAT power_out Battery connection pin that provides charge current to the battery and regulates the battery voltage at 4.2V.
6 DONE output Open-drain charge termination status output that is pulled low by an internal switch in charge termination status and is otherwise high impedance.
7 CHRGb output Open-drain charge status output that is pulled low by an internal switch while the battery is being charged and is otherwise high impedance.
8 CE input Chip enable input where a high level enables normal operation and a low level puts the device into disable mode, and it can be driven by TTL or CMOS logic levels.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer DIOO
Package SOIC-8-EP
Category Power Management (PMIC)
Pins 9

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Voltage -0.3 10 V 5
PROG Voltage -0.3 V 5
BAT Voltage -0.3 10 V 5
CHRGb, DONE Voltage -0.3 V 5
BAT Pin Current 1000 mA 5
Power Dissipation 0.6 W 5
Junction Temperature 150 °C 5
Operation Temperature -45 85 °C 5
Storage Temperature -65 125 °C 5
Lead Temperature (Soldering 10s) 260 °C Soldering 10s 5
Thermal Resistance, junction-to-board, EP-SOIC8 RθJB 50 °C/W 5
Input Supply Voltage 4.5 5.5 V 5
Operating Temperature Range -40 85 °C 5
Charge Mode Supply Current ISOLYCHRG 250 2000 µA RPROG=1kΩ 6
Charge Mode Supply Current ISOLYCHRG 200 2000 µA RPROG=10kΩ 6
Charge Mode Battery Current IBATCHRG 900 1000 1100 mA RPROG=1kΩ 6
Charge Mode Battery Current IBATCHRG 450 500 550 mA RPROG=2kΩ 6
Charge Mode Battery Current IBATCHRG 90 100 110 mA RPROG=10kΩ 6
PROG Pin Voltage VPROGCHRG 0.93 1 1.07 V RPROG=1kΩ 6
Standby Mode Supply Current ISPLYSTBY 136 500 µA Charge Terminated 6
Standby Mode Battery Current IBATSTBY 0 -2.5 -6 µA Charge Terminated 6
Shutdown Mode Supply Current ISPLYASD 20 42 90 µA VCC<VBAT 6
Shutdown Mode BAT Pin Current IBATASD -1 0.05 1 µA VCC<VBAT 6
UVLO Mode Supply Current ISPLYUVLO 20 42 90 µA VCC<VUV 6
UVLO Mode BAT Pin Current IBATUVLO -1 0.05 1 µA VCC<VUV 6
OVLO Mode BAT Pin Current IBATOVLO -1 0.05 1 µA VCC>VOV 6
Shutdown Mode Supply Current ISPLYSHUT 20 42 70 µA RPROG not Connected 6
Manual Shutdown BAT Pin Current IBATMSD -1 0.05 1 µA VPROG=1.3V 6
Sleep Mode BAT Pin Current IBATSLEEP -1 0.05 1 µA VCC=0V 6
Float Voltage VFLOAT 4.158 4.2 4.242 V 6
Trickle Charge Voltage Threshold VTRIKL 2.8 2.9 3 V RPROG=1kΩ 6
UVLO Threshold From VCC Low to High VUVLO 3.6 3.8 4 V 6
CHRGb Pin Output Low Voltage VCHRGb 0.3 0.6 V ICHRGb=5mA 7
DONE Pin Output Low Voltage VDONE 0.3 0.6 V IDONE=5mA 7
Auto Recharge Battery Voltage ΔVRECHRG 100 150 200 mV 7
PROG Pin Pull-up Current IPROG 0.35 0.5 0.75 µA 7
Battery Temperature Detect Threshold Voltage VTEMP_EN 0.18 0.2 V TEMP Pin Rising 7
Battery Temperature Detect Threshold Voltage VTEMP_EN 0.29 0.32 V TEMP Pin Falling 7
TEMP Pin High Threshold Voltage VTEMP_H 72 73.5 %VCC TEMP Pin Rising 7
TEMP Pin High Threshold Voltage VTEMP_H 80 82 %VCC TEMP Pin Falling 7
TEMP Pin Low Threshold Voltage VTEMP_L 43 45 %VCC TEMP Pin Rising 7
TEMP Pin Low Threshold Voltage VTEMP_L 48.5 50 %VCC TEMP Pin Falling 7
Logic Input Low VCEL 0.5 V CE voltage falling, Chip disabled 7
Logic Input High VCEH 1 V CE voltage rising, Chip enabled 7
Charge Terminated Battery Current, 1000mA/100mA charger terminated ICharge_terminated 100 µA RPROG=10kΩ 6
Charge Terminated Voltage VCharge_terminated 0.1 V RPROG=1kΩ 6
Trickle Charge Current ITRIKL 100 mA RPROG=1kΩ 6
Trickle Charge Voltage Hysteresis VTRIKL, HYS 100 mV RPROG=1kΩ 6
UVLO Hysteresis VUVLO, HYS 250 mV 7
OVLO Threshold From VCC Low to High VOVLO 6 V 7
OVLO Hysteresis VOVP_Hys 180 mV 7
Junction Temperature In CT Mode TLIM 165 °C In CT Mode 7
Power FET ON Resistance RON 250 mΩ 7
Soft-Start Time TSS 50 µs RPROG=2kΩ 7
Manual Shutdown Threshold Voltage VMSD 1.2 V PROG Pin Rising 7
Manual Shutdown Threshold Voltage VMSD 1 V PROG Pin Falling 7
VCC-VBAT Lockout Threshold Voltage VASD 120 mV VCC from low to High 7
VCC-VBAT Lockout Threshold Voltage VASD 50 mV VCC from High to Low 7

CAD (KiCad official)

  • Symbol: DIO5508XS8
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm
  • 3D model: SOIC-8-EP (KiCad packages3D, STEP)
  • 3D model files: dio5508xs8-etched.step / dio5508xs8-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dio5508xs8.step / dio5508xs8.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: DIOO datasheet (17 pp, sha256 2a46c537247a8a09, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF