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SY20741BQDC (SY6924BQDC)

Not recommended for new designs
High Efficiency, 2.5A, Multi-Cell Li-Ion Battery Charger
Datasheet
SY20741BQDC High Efficiency, 2.5A, Multi-Cell Li-Ion Battery Charger Datasheet
Part number SY20741BQDC
Vin (max) (V) 14
Vin (min) (V) 4
Absolute max Vin (max) (V)
Number of series cells 1,2
Charge voltage (max) (V)
Charge voltage (min) (V)
Charge current (max) (A) 2.5
Charge current (min) (A)
Integrated FETs(Yes/No)
Topology
Control interface
Features Blocking FET integrated
Operating temperature range(°C)
Package QFN3x3-16
  • Integrated Synchronous Buck and Reverse Blocking FET with 16V Rating
  • Adaptive  Input Power Limit for 4-14V Wide Input Voltage
  • Maximum 2.5A Programmable Charge Current
  • 4.1V and 4.246V Constant Voltage Selectable
  • Support Single-cell or Two-cell Battery Pack
  • External Shutdown Function
  • Input Voltage UVLO and OVP
  • Thermal Fold-back Protection
  • Over Temperature Protection
  • Battery Short  Protection
  • Programmable Charge Timeout
  • Charge Status Indication
  • Low Profile QFN3×3 Package for Portable

Evaluation Board

  • 20741B

    Photo of evaluation board

  • 20741B-

    Photo of evaluation board

  • 20741B--

    Photo of evaluation board

EVB_SY20741BQDC

The EVB_SY20741BQDC is used to evaluate 4-14V input, 2.5A multi-cell Li-Ion battery step-down charger SY20741BQDC.

Technical Documentation

Title Date
Silergy_Catalog_Q2_2026 2026-06-12

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