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DIO5508XS8
Public Made by Adomby adom
DIOO Battery Management, SOIC-8-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownDIO5508XS8
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dio5508xs8.step/dio5508xs8.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).