All Alternatives

Alternatives to CONSONANCE CN3761

CONSONANCE CN3761 and its qualified second sources, compared on form, fit and function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for CONSONANCE CN3761

CN3761 compared against its qualified second sources
CN3761CONSONANCECN3791CONSONANCECN3765CONSONANCE+3more
FFF CompatibilityIdentical SSOP-10 package and 100% pin-to-pin compatible layout (Pin 1: VG, Pin 2: GND, Pin 3: CHRG, Pin 4: DONE, Pin 5: COM, Pin 6: MPPT/FB, Pin 7: BAT, Pin 8: CSP, Pin 9: VCC, Pin 10: DRV).Identical physical dimensions and mounting style (10-pin SSOP, 150 mil body width).Operates over the exact same input voltage range (4.5V to 28V), supports 4A charging current, 300kHz PWM frequency, and 4.2V 1S Li-ion regulation voltage with identical pin functions. Adds MPPT capability on Pin 6 when powered via solar panels, while functioning identically with standard DC supplies.Identical SSOP-10 package and identical pinout (Pin 1: VG to Pin 10: DRV).Identical physical dimensions and PCB footprint.Requires a higher minimum input voltage of 6.6V (vs 4.5V) and requires external voltage divider tuning at FB (Pin 6) for specific target cell counts/chemistries.
AI Summary

CN3761 by CONSONANCE: Battery Charging IC Lithium-ion/Polymer SOIC-10-1mm.

CN3791 is a direct pin-to-pin drop-in alternative from the same manufacturer and series. It retains all 1S 4A buck switching battery charger features (4.5V–28V input range, 4.2V float voltage, external PMOS drive) while adding an integrated MPPT tracking feature on Pin 6 (which acts as the FB/MPPT pin). It can be installed directly on the CN3761 footprint without layout modification.

  • 100% pin-to-pin, footprint, and package compatible (SSOP-10, 150 mil)
  • Identical application circuit and external component values
  • Features integrated Maximum Power Point Tracking (MPPT) for photovoltaic cell inputs

CN3765 is a multi-chemistry PWM buck charger controller in the same 10-pin SSOP package with an identical pinout layout. It supports Li-ion, LiFePO4, and Lithium Titanate batteries across a wider 6.6V to 30V input range, offering flexibility for alternative battery chemistry designs on the same PCB footprint.

  • Supports higher maximum input voltage (up to 30V vs 28V)
  • Multi-chemistry support (Li-ion, LiFePO4, Lithium Titanate)
  • Identical 10-pin SSOP package and pinout layout
  • Requires higher minimum input voltage (6.6V min vs 4.5V min)
  • Multi-chemistry feedback circuit setup requires verifying FB resistor divider values
Lifecycle StatusUnknownUnknownUnknown
Market AvailabilityUnknownUnknownUnknown
REACHUnknownUnknownUnknown
RoHSUnknownUnknownUnknown
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