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Contents

README

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BL6281GSO

BL(Shanghai Belling) · Audio Amplifiers · SOP-8

BL6281GSO from BL(Shanghai Belling), in a SOP-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 SHD input Shut-down logical control where logic '0' is active.
2 BP bidirectional Analog ground for the inner OPAs at about half of VDD, filtered by the Cb bypass capacitor.
3 INP input Positive input of the amplifier.
4 INN input Negative (inverting) input of the amplifier.
5 Vout1 output Negative BTL output.
6 VDD power_in Power supply, 2.2 V to 5.5 V.
7 GND power_in Ground.
8 Vout2 output Positive BTL output.

Key specifications

Parameter Value
Manufacturer BL(Shanghai Belling)
Package SOP-8
Category Amplifiers/Comparators
Pins 8

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Quiescent Power Supply Current (VDD=5V, 8Ω load) IDD 3.5 8 mA VDD=5V; VIN = 0V, 8Ω Load 4
Quiescent Power Supply Current (VDD=5V, no load) IDD 3 7 mA VDD=5V; VIN = 0V, No Load 4
Shutdown Current (VDD=5V) ISD 0.1 2 uA VDD=5V; VIN=0V, VSHD=GND, No Load 4
Output Offset Voltage (VDD=5V) VOS -50 6 50 mV VDD=5V 4
Output Power (VDD=5V) PO 0.9 1.1 W VDD=5V; THD+N<=1%, f=1KHz, 8Ω Load 4
Power Supply Rejection Ratio (VDD=5V, 217Hz) PSRR 50 60 dB VDD=5V; input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=217Hz 5
Power Supply Rejection Ratio (VDD=5V, 1KHz) PSRR 51 61 dB VDD=5V; input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=1KHz 5
Quiescent Power Supply Current (VDD=3V, 8Ω load) IDD 2.3 7 mA VDD=3V; VIN = 0V, 8Ω Load 5
Quiescent Power Supply Current (VDD=3V, no load) IDD 1.9 6 mA VDD=3V; VIN = 0V, No Load 5
Shutdown Current (VDD=3V) ISD 0.1 2 uA VDD=3V; VIN=0V, VSHD=GND, No Load 5
Output Offset Voltage (VDD=3V) VOS -50 6 50 mV VDD=3V 5
Power Supply Rejection Ratio (VDD=3V, 217Hz) PSRR 53 65 dB VDD=3V; input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=217Hz 5
Power Supply Rejection Ratio (VDD=3V, 1KHz) PSRR 54 66 dB VDD=3V; input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=1KHz 5
Output Offset Voltage (VDD=2.6V) VOS -50 4 50 mV VDD=2.6V 5
Power Supply Rejection Ratio (VDD=2.6V, 217Hz) PSRR 52 64 dB VDD=2.6V; input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=217Hz 5
Power Supply Rejection Ratio (VDD=2.6V, 1KHz) PSRR 53 65 dB VDD=2.6V; input terminated with 10Ω, VDDRIPPLE=0.2VP-P, f=1KHz 5
Supply Voltage (absolute maximum) -0.3 6 V 4
Input Voltage (absolute maximum; upper limit printed as VDD+0.3V) -0.3 V 4
Junction Temperature (absolute maximum) -40 150 ℃ 4
Storage Temperature (absolute maximum) -65 150 ℃ 4
Temperature Range (operating) TA -40 85 ℃ 4
Supply Voltage (operating) VDD 2.2 5.5 V 4
Thermal Resistance Junction-to-Ambient (SOP8) θJA 184 ℃/W SOP8 package 4

CAD (KiCad official)

  • Symbol: BL6281GSO
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: bl6281gso-etched.step / bl6281gso-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bl6281gso.step / bl6281gso.glb are the bare package body.

Provenance

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

  • Datasheet: BL(Shanghai Belling) datasheet (8 pp, sha256 09147b7f02d917e3, retrieved 2026-11-04, 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