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Contents

README

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ME4057DSPG-N

MICRONE · Battery Management ICs · ESOP-8

ME4057DSPG-N from MICRONE, in a ESOP-8. 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 Battery temperature sense input for an external NTC/PTC divider; charging stops when TEMP voltage is below 45% or above 80% of VCC, and it can be tied to GND to disable temperature sensing.
2 PROG passive Constant-charge-current set and charge-current monitor pin; a resistor RPROG to ground sets the charge current via I = (VPROG/RPROG)*1100, with VPROG typically 1.0V.
3 GND power_in Ground.
4 VCC power_in Input supply pin powering the internal circuit (4.0V to 9.0V operating); the chip enters sleep mode when VCC falls within 80mV of the BAT voltage, reducing battery leakage to below 2uA.
5 BAT power_out Battery connection pin; charge termination (float) voltage is fixed at 4.35V for the ME4057DSPG-N variant.
6 STDBY output Open-drain charge-complete status indicator that is pulled low when charge termination is detected and high-impedance otherwise.
7 CHRG output Open-drain charging status indicator that is pulled low while the battery is charging and high-impedance otherwise.
8 CE input Chip enable input; high enables normal operation, low stops the chip, and it can be driven by TTL or CMOS logic.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer MICRONE
Package ESOP-8
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 voltage VCC 4 5 9 V 6
Quiescent current, charge mode ICC-IBAT 150 500 μA Charge mode, RPROG=1.1kΩ 6
Quiescent current, standby mode ICC-IBAT 55 100 μA Standby mode (charge terminated) 6
Quiescent current, shutdown mode ICC-IBAT 55 100 μA RPROG not connected, VCC<VBAT, or VCC<VUV 6
Float voltage VFLOAT 4.307 4.35 4.393 V ME4057DSPG-N, 0℃≤TA≤85℃ 6
Charge current, RPROG=2.2kΩ IBAT 450 500 550 mA RPROG=2.2KΩ, current mode, VBAT=3.9V 6
Charge current, RPROG=1.1kΩ IBAT 950 1000 1050 mA RPROG=1.1KΩ, current mode, VBAT=3.9V 6
BAT current, standby mode IBAT -6 -2.5 0 μA Standby mode, VBAT=4.35V 6
BAT current, RPROG floating IBAT 1 2 μA RPROG floating (printed ±1 typ, ±2 max) 6
BAT current, sleep mode IBAT -1 -2 μA Sleep mode, VCC=0V 6
Trickle charge current ITRIKL 120 130 140 mA VBAT<VTRIKL, RPROG=1.1KΩ 6
Trickle charge threshold voltage VTRIKL 2.8 2.9 3 V RPROG=1.1KΩ, VBAT rising 6
Trickle charge threshold hysteresis VTRHYS 350 400 450 mV RPROG=1.1KΩ 6
VCC undervoltage lockout threshold VUV 3.5 3.7 3.9 V VCC rising 6
VCC undervoltage lockout hysteresis VUVHYS 150 200 300 mV 6
VCC-VBAT lockout threshold, rising VASD 100 140 180 mV VCC from low to high 6
VCC-VBAT lockout threshold, falling VASD 50 80 110 mV VCC from high to low 6
C/10 termination current, RPROG=2.2kΩ ITERM 60 70 80 mA RPROG=2.2KΩ 6
C/10 termination current, RPROG=1.1kΩ ITERM 120 130 140 mA RPROG=1.1KΩ 6
PROG pin voltage VPROG 0.9 1 1.1 V RPROG=1.1KΩ, current mode 6
CHRG pin output low voltage VCHRG 0.3 0.6 V 5mA 6
STDBY pin output low voltage VSTDBY 0.3 0.6 V 5mA 6
Temperature rise detection threshold VTEMP-H 80 83 %VCC 6
Temperature fall detection threshold VTEMP-L 42 45 %VCC 6
Recharge threshold ΔVRECHRG 70 150 240 mV VFLOAT - VRECHRG 6
Recharge delay time tRECHARGE 0.8 1.8 4 mS VBAT from low to high 6
Charge termination delay time tTERM 0.8 1.8 4 mS IBAT below ICHG/10 6
Thermal protection threshold TLIM 145 ℃ 6
P-MOSFET on resistance RON 650 mΩ 6
Soft-start time tSS 20 μS IBAT=0 to IBAT=1100V/RPROG 6
PROG pin pull-up current IPROG 2 μA 6
Input voltage VCC -0.3 10 V 5
BAT pin voltage -0.3 10 V 5
TEMP pin voltage -0.3 10 V 5
CHRG pin voltage -0.3 10 V 5
STDBY pin voltage -0.3 10 V 5
CE pin voltage -0.3 10 V 5
BAT pin current 1200 mA 5
PROG pin current 1200 μA 5
Maximum junction temperature 145 ℃ 5
Operating ambient temperature range Topa -40 85 ℃ 5
Storage temperature range Tstr -65 125 ℃ 5
Lead temperature and time 260 ℃ 10S 5

CAD (KiCad official)

  • Symbol: ME4057DSPG-N
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)
  • 3D model files: me4057dspg-n-etched.step / me4057dspg-n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); me4057dspg-n.step / me4057dspg-n.glb are the bare package body.

Provenance

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

  • Datasheet: MICRONE datasheet (17 pp, sha256 3b33536d2bdfda15, retrieved 2026-10-22, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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