Needs validationmedium risk
Excellent alternative from the '4056' family with matching current and wider input voltage. Pinout verification is required.
Best Alternatives to TC4056A
TC4056A is a complete single-cell Li-Ion battery charger in an ESOP8 package, featuring 1A programmable charge current. This page provides a review of potential alternatives and their key differences.
AI replacement insight
Package riskhigh
Pinout is unverified for all candidates. A mismatch would require PCB redesign.
Electrical risklow
Most candidates have similar or improved electrical specs. Minor differences in float voltage or current programming need review.
Can it be replaced directly?
No direct, verified pin-to-pin replacement has been confirmed. However, several parts in the '4056' family are strong functional alternatives pending datasheet review.
Best replacement path
Candidates from the '4056' family like BL4056C-42ES or LN4056A are the most promising, offering similar or better parameters. Pinout verification is mandatory.
Main risk
The primary risk is pin-out incompatibility. While many '4056' chargers share a common pinout, variations exist and must be checked.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | TC4056A. | BL4056C-42ES | HTP4056 | LN4056A | Compatibility / risk |
|---|---|---|---|---|---|
| Package | ESOP8 | ESOP8 | ESOP8 | ESOP8 | ESOP8 — Package matches.; HTP4056: Package matches.; LN4056A: Package matches.; XT4076Y2ASR-G: Package matches. |
| Voltage | 4.25 V | 4.2 V | 4.2 V | 4.2 V | 4.2 V — Slightly lower float voltage, generally safe.; HTP4056: Slightly lower float voltage, generally safe.; LN4056A: Slightly lower float voltage, generally safe.; XT4076Y2ASR-G: Slightly lower float voltage, generally safe for Li-Ion cells. |
| Current | 1000 mA | 1000 mA | 1.2 A | 1.0 A | 1000 mA / 1.2 A / 1.0 A / 1 A — Charge current matches.; HTP4056: Higher max charge current. May require adjusting the current-setting resistor.; LN4056A: Charge current matches.; XT4076Y2ASR-G: Charge current matches. |
| Pinout | Assumed standard | Unknown | Unknown | Unknown | Unknown — Pinout must be verified. '4056' family suggests potential compatibility.; HTP4056: Pinout must be verified. '4056' family suggests potential compatibility.; LN4056A: Pinout must be verified. '4056' family suggests potential compatibility.; XT4076Y2ASR-G: Pinout must be verified from datasheet. |
Application & sourcing insights
Questions & answers
The best alternatives are likely BL4056C-42ES or HTP4056, as they offer matching or improved specifications and belong to the common '4056' family. However, you must verify the pinout from the datasheet before use.