component

BL8573CS8TR

Public Made by Adom

by adom

BL Shanghai Belling Battery Management, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)bl8573cs8trfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
bl8573cs8tr / README.md
History Download
Ray Publish 0.1.0 5fe846d 17d ago

BL8573CS8TR

BL Shanghai Belling · Battery Management · ESOP-8

BL8573CS8TR from BL Shanghai Belling, 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 NC unconnected No connection.
2 PROG bidirectional Charge current program, monitor and shutdown pin: a 1% resistor RPROG to GND sets IBAT = (VPROG/RPROG)×1000 with VPROG = 1V in constant-current mode, floating it shuts down the charger (3μA pull-up), and it is clamped to about 2.4V.
3 GND power_in Ground.
4 VCC power_in Positive input supply (4.25V to 6.0V operating, 6.5V absolute maximum) that needs bypassing with at least a 1μF capacitor, and the charger enters shutdown when VCC falls within 30mV of the BAT voltage.
5 BAT power_out Charge current output to the battery that regulates the final float voltage to 4.2V or 4.35V (1% accuracy) through an internal precision resistor divider.
6 STDBY output Open-drain charge status output that pulls low when the battery is fully charged (absolute maximum -0.3V to 6.5V).
7 CHRG output Open-drain charge status output that pulls low while the battery is charging (absolute maximum -0.3V to 6.5V), and is high impedance in undervoltage lockout.
8 NC unconnected No connection.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer BL Shanghai Belling
Package ESOP-8
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
PROG Pin Current (absolute maximum) 2 mA 2
VCC Supply Voltage (absolute maximum) VCC -0.3 6.5 V 2
BAT Pin Voltage (absolute maximum) BAT -0.3 5 V 2
PROG Pin Voltage (absolute maximum) PROG -0.3 V Upper limit printed as VCC + 0.3V 2
Unlabeled pin voltage (absolute maximum) -0.3 6.5 V Pin label missing in extracted text 2
STDBY Pin Voltage (absolute maximum) STDBY -0.3 6.5 V 2
Maximum Junction Temperature 125 °C 2
Operating Ambient Temperature Range -40 85 °C 2
Storage Temperature Range -40 125 °C 2
Lead Temperature (Soldering) 260 °C Soldering, 10 sec 2
Input Supply Voltage VCC 4.25 6 V 4
Input Supply Current ICC 300 2000 μA Charge Mode (Note 2) 4
Input Supply Current ICC 200 500 μA Standby Mode (Charge Terminated) 4
Input Supply Current ICC 25 50 μA Shutdown Mode (RPROG Not Connected, VCC<VBAT, or VCC<VULO) 4
Regulated Output (Float) Voltage VFLOAT 4.158 4.2 4.242 V IBAT = 40mA 4
BAT Pin Current IBAT 93 100 107 mA Current Mode 4
BAT Pin Current IBAT 465 500 535 mA RPROG = 2K, Current Mode 4
BAT Pin Current IBAT 0 -2.5 -6 μA Standby Mode, VBAT = 4.2V 4
BAT Pin Current IBAT 1 5 μA Shutdown Mode (RPROG Not Connected) 4
Trickle Charge Current ITRIKL 20 45 70 mA VBAT < VTRIKL, RPROG = 2K 4
Trickle Charge Threshold Voltage VTRIKL 2.8 2.9 3 V VBAT Rising 4
Trickle Charge Hysteresis Voltage VTRHYS 60 80 110 mV 4
VCC Undervoltage Lockout Threshold VUV 2.7 2.8 2.92 V From VCC Low to High 4
VCC Undervoltage Lockout Hysteresis VUVHYS 150 200 300 mV 4
Manual Shutdown Threshold Voltage VMSD 1.15 1.21 1.3 V PROG Pin Rising 4
Manual Shutdown Threshold Voltage VMSD 0.9 1 1.1 V PROG Pin Falling 4
VCC-VBAT Lockout Threshold Voltage VASD 70 100 140 mV VCC from Low to High 4
VCC-VBAT Lockout Threshold Voltage VASD 5 30 50 mV VCC from High to Low 4
C/10 Termination Current Threshold ITERM 0.085 0.1 0.115 mA Note 3 4
PROG Pin Voltage VPROG 0.93 1 1.07 V Current Mode, VBAT=4V 4
CHRG Pin Output Low Voltage VCHRG 0.35 0.6 V ICHRG = 5mA 4
Recharge BAT Threshold Voltage (VFLOAT - VRECHRG) VRECHRG 100 150 200 mV 4
Junction Temperature in Constant Temperature Mode TLIM 120 °C 4
Power FET ON Resistance (Between VCC and BAT) RON 0.25 4
Soft-Start Time tss 100 μs IBAT = 0 to IBAT = 1000V/RPROG 4
Recharge Comparator Filter Time tRECHARGE 0.5 5 20 ms VBAT High to Low 4
Termination Comparator Filter Time tTERM 400 1000 2500 μs IBAT Falling Below ICHG/10 4
PROG Pin Pull-Up Current IPROG 3 μA 4

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 from the die to the copper lead frame, through the 10

CAD (KiCad official)

  • Symbol: BL8573CS8TR
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)
  • 3D model files: bl8573cs8tr-etched.step / bl8573cs8tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl8573cs8tr.step / bl8573cs8tr.glb are the bare package body.

Provenance

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

  • Datasheet: BL Shanghai Belling datasheet (12 pp, sha256 3479cdc9baa90eb9, 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