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IC-Hersteller Texas Instruments

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Texas Instruments bq25910 | Demoboard bq25910EVM-854

I2C Controlled 6-A Three-Level Switch Mode, Single-Cell Parallel Battery Charger for Fast Charging

Details

TopologieSonstige Topologie
IC-RevisionA

Beschreibung

The bq25910 is an integrated three-level switch-mode parallel battery charge management device for single cell Li-ion and Li-polymer batteries. Utilization of the three-level converter maintains highest switch-mode operation efficiency while reducing solution footprint and increasing power density. The device supports fast charging with high input voltage for a wide range of portable devices. The solution integrates reverse-blocking FET (QBLK), and four switching FETs (QHSA, QHSB, QLSB, QLSA). The I2C serial interface with charging and system settings makes the device a truly flexible solution.

Eigenschaften

Charging in Dual Charger Configuration

  • High Efficiency 750-kHz Switch Mode Three-LevelBuck Parallel Charger– Reduced Ripple to Support Low ProfileInductor– 95.4% Charge Efficiency at 1.5 A from 5-VInput– 93.3% Charge Efficiency at 3 A from 9-V Input– Superior Efficiency Compared to TraditionalBuck Converter in Compact Form Factor
  • Single Input to Support USB Input and AdjustableHigh Voltage Adapters– Support 3.9-V to 14-V Input Voltage Rangewith 20-V Absolute Maximum Input VoltageRating– Input Current Limit (500 mA to 3.6 A with 100-mA resolution) to Support USB2.0 and USB3.0 Standard and High Voltage Adaptors– Maximum Power Tracking by Input VoltageLimit (VINDPM) up to 14 V
  • Flexible I2C Mode for Optimal SystemPerformance
  • High Integration Includes all MOSFETs, CurrentSensing and Loop Compensation– Lossless Charge Current Sensing withoutSense Resistor
  • < 10-μA Low Battery Leakage Current DuringStand-By Mode
  • High Accuracy– ±0.4% Charge Voltage Regulation– ±10% Charge Current Regulation– ±7.5% Input Current Regulation– Remote Differential Battery Sensing
  • Safety– Thermal Regulation and Thermal Shutdown– Input UVLO and Overvoltage Protection– Battery OVP– Input Dynamic Power Management (DPM)– Charging Safety Timer– Flying Capacitor Short Circuit Protection– Output Voltage Short Circuit Protection
  • Available in 36-Ball WCSP Package

Typische Anwendungen

  • Portable Electronics / Smart Phone / Tablet / Electronic Point of Sales (ePOS)
  • Wireless Charging

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Montageart Muster
74437321010SPEC
8 Dateien WE-LHMI SMT Speicherdrossel 1 4.5 5.65 10 41 47 90 SMT
Artikel Nr. Daten­blatt Simu­lation
74437321010SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Montageart Muster