component
ME4084BN8BG
Public Made by Adomby adom
MICRONE Battery Management ICs, DFN-8-EP(2x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownME4084BN8BG
MICRONE · Battery Management ICs · DFN-8-EP(2x2)
ME4084BN8BG from MICRONE, in a DFN-8-EP(2x2). 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; if the voltage is below 45% or above 80% of VCC, charging is suspended, and grounding this pin disables the sense function. |
| 2 | PROG | passive | Constant charge current setting and monitor pin; a resistor RPROG from this pin to GND programs the charge current, and the PROG pin voltage is 1.0V typical in current mode. |
| 3 | GND | power_in | Ground reference pin for the charger. |
| 4 | VCC | power_in | Positive input supply voltage (4.7V to 6.5V, with overvoltage protection at 6.5V typical) that powers the internal circuit and drops IBAT to less than 1uA in sleep mode when VCC falls within 70mV of the BAT pin voltage. |
| 5 | BAT | power_out | Battery connection pin that provides charge current to the battery and the 4.2V regulation voltage. |
| 6 | STDBY | output | Open-drain charge terminated status output, pulled low by an internal switch (VSTDBY 0.6V max at 5mA) to indicate charge termination and high impedance otherwise. |
| 7 | CHRG | output | Open-drain charge status output, pulled low by an internal switch while charging (VCHRG 0.6V max at 5mA) and high impedance otherwise. |
| 8 | CE | input | Chip enable input: a high input (2.0V minimum) enables normal operation, and a low input (0.8V maximum) puts the device into disable mode; it accepts TTL or CMOS levels. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MICRONE |
| Package | DFN-8-EP(2x2) |
| Category | Power Management ICs |
| 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 |
|---|---|---|---|---|---|---|---|
| Input supply voltage | VCC | 4.7 | 5 | 6.5 | V | ● | 7 |
| Input supply voltage (absolute maximum) | VCC | -0.3 | 24 | V | 6 | ||
| PROG and TEMP pin voltage | -0.3 | 6 | V | 6 | |||
| BAT pin voltage | -0.3 | 16 | V | 6 | |||
| CHRG, STDBY, CE pin voltage | -0.3 | 24 | V | 6 | |||
| BAT pin current | 1200 | mA | 6 | ||||
| PROG pin current | 1200 | μA | 6 | ||||
| Junction temperature | -40 | 150 | ℃ | 6 | |||
| Operating ambient temperature | Topa | -40 | 85 | ℃ | 6 | ||
| Storage temperature | Tstr | -55 | 150 | ℃ | 6 | ||
| Soldering temperature | 260 | ℃ | Recommended 10S | 6 | |||
| Package thermal impedance θJA DFN2*2-8L | θJA | 98 | ℃/W | DFN2*2-8L | 6 | ||
| Maximum power dissipation DFN2*2-8L | Pd | 1.28 | W | DFN2*2-8L | 6 | ||
| Standby mode input current | ICC | 100 | 200 | μA | Standby mode (charge end) | 7 | |
| Shutdown mode input current | ICC | 100 | 200 | μA | Shutdown mode (RPROG not connected, VCC<VBAT, or VCC<VUV) | 7 | |
| Regulated output voltage | VFLOAL | 4.158 | 4.2 | 4.242 | V | 0℃≤TA≤85℃, ME4084 | 7 |
| BAT pin current | IBAT | 720 | 800 | 880 | mA | VBAT=3.9V, RPROG=1.16KΩ, current mode | 7 |
| BAT pin current in standby mode | IBAT | -1 | 0.1 | 1 | μA | Standby mode: VBAT=4.2V | 7 |
| BAT pin current in shutdown mode | IBAT | 1 | 2 | μA | Shutdown mode, RPROG not connected | 7 | |
| BAT pin current in sleep mode | IBAT | -1 | 0.1 | 1 | μA | Sleep mode, VCC=0V | 7 |
| Trickle charge threshold voltage | VTRIKL | 2.8 | 2.9 | 3 | V | RPROG=1.53KΩ, VBAT rising | 7 |
| VCC under voltage lockout threshold | VUV | 3.7 | 3.9 | 4.1 | V | ● VCC from low to high | 7 |
| VCC over voltage protection | VOVP | 6.3 | 6.5 | 6.7 | V | ● VCC from low to high | 7 |
| PROG pin voltage | VPROG | 0.9 | 1 | 1.1 | V | ●RPROG=1.53KΩ, current mode | 7 |
| CHRG pin output low voltage | VCHRG | 0.3 | 0.6 | V | ICHRG=5mA | 7 | |
| Recharge battery threshold voltage | ΔVRECHRG | 50 | 100 | 200 | mV | VFLOAT-VRECHRG | 7 |
| STDBY pin output low voltage | VSTDBY | 0.3 | 0.6 | V | ISTDBY=5mA | 7 | |
| TEMP voltage increase (suspend high-temperature threshold) | VTEMP-H | 42 | 45 | %VCC | ME4084B | 7 | |
| TEMP voltage decrease (suspend low-temperature threshold) | VTEMP-L | 80 | 83 | %VCC | ME4084B | 7 | |
| Recharge comparator filter time | tRECHARGE | 0.8 | 1.7 | 4 | mS | VBAT from low to high | 7 |
| Termination comparator filter time | tTERM | 0.8 | 1.7 | 4 | mS | IBAT below ICHG/10 | 7 |
| CE open voltage | VCEON | 2 | V | 7 | |||
| CE off voltage | VCEOFF | 0.8 | V | 7 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | copper lead frame, through the package leads, (especially the ground lead) to the PC board copper. The PC board | 14 |
CAD (KiCad official)
- Symbol:
ME4084BN8BG - Footprint:
Package_DFN_QFN:DFN-8-1EP_2x2mm_P0.5mm_EP0.6x1.2mm - 3D model: DFN-8-EP(2x2) (KiCad packages3D, STEP)
- 3D model files:
me4084bn8bg-etched.step/me4084bn8bg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);me4084bn8bg.step/me4084bn8bg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MICRONE datasheet (20 pp, sha256
64c9ce3e0f9cce37, retrieved 2026-10-28, 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).