BQ24250C

Name: BQ24250C
Brand: TI
SKU: BQ24250C
Price: 2.378 USD

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I2C-geregeltes Abwärtsladegerät mit 1 Zelle, 2 A und1uA im SYSOFF-Modus

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Datenblatt

document-pdfAcrobat 2A Single Input I2C, Standalone Switch-Mode Li-Ion Battery Charger datasheet (Englisch)

BQ24250C

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Number of series cells

Cell chemistry

Li-Ion/Li-Polymer

Charge current (max) (A)

Features

BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, Integrated LDO, Power Path

Vin (min) (V)

4.35

Vin (max) (V)

10.5

Absolute max Vin (max) (V)

Control topology

Switch-Mode Buck

Battery charge voltage (min) (V)

3.5

Battery charge voltage (max) (V)

4.44

Control interface

I2C, Standalone (RC-Settable)

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Number of series cells

Cell chemistry

Li-Ion/Li-Polymer

Charge current (max) (A)

Features

BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, Integrated LDO, Power Path

Vin (min) (V)

4.35

Vin (max) (V)

10.5

Absolute max Vin (max) (V)

Control topology

Switch-Mode Buck

Battery charge voltage (min) (V)

3.5

Battery charge voltage (max) (V)

4.44

Control interface

I2C, Standalone (RC-Settable)

Operating temperature range (°C)

-40 to 85

DSBGA (YFF)

5.71999999999999912 mm² 2.2 x 2.5999999999999996

High-efficiency Switch-mode Charger with Separate Power Path
Start up System from Deeply Discharged or Missing Battery
USB Charging Compliant
- Selectable Input Current Limit of 100 mA, 500 mA, 900 mA,\
  1.5 A, and 2 A
In Host Mode (After I²C Communication Starts and Before
Watchdog Timer Times Out)
- Programmable Battery Charge Voltage, V_BATREG
- Programmable Charge Current (I_CHG)
- Programmable Input Current Limit (I_LIM)
- Programmable Input Voltage Based Dynamic Power
  Management threshold, (V_{IN_DPM})
- Programmable Input Overvoltage Protection Threshold
  (V_OVP)
- Programmable Safety Timer
Resistor Programmable Defaults for:
- I_CHG up to 2 A with Current Monitoring Output
  (ISET)
- I_LIM up to 2 A with Current Monitoring Output (ILIM)
- V_{IN_DPM} (VDPM)
Watchdog Timer Disable Bit
Integrated 4.9 V, 50 mA LDO
Complete System Level Protection
- Input UVLO, Input Over-voltage Protection (OVP),
  Battery OVP, Sleep Mode, VIN_DPM
- Input Current Limit
- Charge Current Limit
- Thermal Regulation
- Thermal Shutdown
- Voltage Based NTC Monitoring Input
- Safety Timer
20 V Maximum Input Voltage Rating
10.5 V Maximum Operating Input Voltage
Low R_DS(on) Integrated Power FETs for up to 2 A
Charging Rate
Open Drain Status Outputs
Synchronous Fixed-frequency PWM Controller Operating at
3MHz for Small Inductor Support
Robust Battery Detection Algorithm
Charge Time Optimizer for improved charge times at any given
charge current
2.4 × 2.0 mm 30-ball WCSP Packages

High-efficiency Switch-mode Charger with Separate Power Path
Start up System from Deeply Discharged or Missing Battery
USB Charging Compliant
- Selectable Input Current Limit of 100 mA, 500 mA, 900 mA,\
  1.5 A, and 2 A
In Host Mode (After I²C Communication Starts and Before
Watchdog Timer Times Out)
- Programmable Battery Charge Voltage, V_BATREG
- Programmable Charge Current (I_CHG)
- Programmable Input Current Limit (I_LIM)
- Programmable Input Voltage Based Dynamic Power
  Management threshold, (V_{IN_DPM})
- Programmable Input Overvoltage Protection Threshold
  (V_OVP)
- Programmable Safety Timer
Resistor Programmable Defaults for:
- I_CHG up to 2 A with Current Monitoring Output
  (ISET)
- I_LIM up to 2 A with Current Monitoring Output (ILIM)
- V_{IN_DPM} (VDPM)
Watchdog Timer Disable Bit
Integrated 4.9 V, 50 mA LDO
Complete System Level Protection
- Input UVLO, Input Over-voltage Protection (OVP),
  Battery OVP, Sleep Mode, VIN_DPM
- Input Current Limit
- Charge Current Limit
- Thermal Regulation
- Thermal Shutdown
- Voltage Based NTC Monitoring Input
- Safety Timer
20 V Maximum Input Voltage Rating
10.5 V Maximum Operating Input Voltage
Low R_DS(on) Integrated Power FETs for up to 2 A
Charging Rate
Open Drain Status Outputs
Synchronous Fixed-frequency PWM Controller Operating at
3MHz for Small Inductor Support
Robust Battery Detection Algorithm
Charge Time Optimizer for improved charge times at any given
charge current
2.4 × 2.0 mm 30-ball WCSP Packages

The bq24250C is a highly integrated single-cell Li-Ion battery charger and system power-path management device targeted for space-limited, portable applications with high capacity batteries. The single cell charger has a single input that operates from either a USB port or AC wall adapter for a versatile solution.

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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Data sheet	2A Single Input I2C, Standalone Switch-Mode Li-Ion Battery Charger datasheet		16 Apr 2014

Design und Entwicklung

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Evaluierungsplatine

BQ24250EVM-150 — BQ24250EVM 150 A, Einzel-Eingang-I2C Standalone-Switchmode-Li-Ion-Batterielader – Evaluierungsmodul

This EVM enables test and evaluation of the Texas Instruments' bq24250/51/57 devices. The bq2425x series are highly integrated single cell Li-Ion battery chargers targeted for space-limited, portable applications with high capacity batteries. The single cell charger has a single input that (...)

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