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BQ24640RVAR TI Chips bq24640 High Efficiency Synchronous Switched Mode Super Capacitor Charger

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BQ24640RVAR TI Chips bq24640 High Efficiency Synchronous Switched Mode Super Capacitor Charger

Brand Name:	TI Chips
Model Number:	BQ24640RVAR
MOQ:	3000
Packaging Details:	3000PCS/reel
Payment Terms:	T/T

Detail Information

Product Description

Detail Information

Place of Origin:

China

Document:

Model:

BQ24640RVAR

Product Name:

TI Chips

Type:

SMD/SMT

Operating Power Supply Voltage:

5 V To 28 V

Output Current:

Output Voltage:

Adjustable

Supply Ability:

1000000

Highlight:

BQ24640RVAR

BQ24640 TI Chips

High Efficiency TI Chips

Product Description

TI Chips BQ24640RVAR bq24640 High-Efficiency Synchronous Switched-Mode Super Capacitor Charger

Features
Charge Super Capacitor Pack From 2.1 V to 26 V
CC/CV Charge Profile From 0 V Without Precharge
600-kHz NMOS-NMOS Synchronous Buck Controller
Over 90% Efficiency for up to 10-A Charge Current
5-V to 28-V VCC Input Voltage Range
Accuracy
– ±0.5% Charge Voltage Regulation
– ±3% Charge Current Regulation
High Integration
– Internal Loop Compensation
– Internal Digital Soft Start
Safety
– Input Overvoltage Protection
– Capacitor Temperature Sensing Hot and Cold Charge Suspend
– Thermal Shutdown
Status Outputs
– Adapter Present
– Charger Operation Status
Charge Enable Pin
30-ns Driver Dead Time and 99.5% Maximum Effective Duty Cycle
Automatic Sleep Mode for Low Power Consumption
– <15-μA Off-State Super Capacitor Discharge Current
– <1.5-mA Off-State Input Quiescent Current

Applications
Memory Backup Systems
Industrial UPS Systems and Power Transient Buffering
Bridge Power to Buffer the Battery

Description
The bq24640 device is a highly integrated switched-mode super capacitor charge controller. The device offers a constant-frequency synchronous PWM controller with high accuracy charge current, voltage regulation, and charge status monitoring.
The bq24640 charges a super capacitor in two phases: constant current and constant voltage (CC/CV). The device can charge super capacitors from 0 V with current set on the ISET pin. When the super capacitor voltage reaches the programmed target voltage, charge current begins tapering down.
The bq24640 enters a low-current sleep mode (<15 μA) when the input voltage falls below the output capacitor voltage.
The bq24640 has an input CE pin to enable and disable charge, and the STAT and PG output pins report charge and adapter status. The TS pin on the bq24640 monitors the temperature of the capacitor and suspends charge during hot and cold conditions.

Simplified Schematic

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products details

BQ24640RVAR TI Chips bq24640 High Efficiency Synchronous Switched Mode Super Capacitor Charger

OSRAM LED Chip

CREE LED Chip

ST IC Chips

TI Chips

Bridgelux LED Chip

Infineon Chip

LUMINUS LED Chip

LED Lamp Beads

SAMSUNG IC Chips

Micron Chips

SK Hynix Chips

Lumileds LED Chip

SAMSUNG LED Chip

SEOUL LED Chip

NICHIA LED Chip

NeXperia Chips

ONsemi Chips

ADI Chips

TSLC Semileds LED Lamp Beads

High Power LED Chip

OSRAM LED Chip

CREE LED Chip

ST IC Chips

TI Chips

Bridgelux LED Chip

Infineon Chip

LUMINUS LED Chip

LED Lamp Beads

SAMSUNG IC Chips

Micron Chips

SK Hynix Chips

Lumileds LED Chip

SAMSUNG LED Chip

SEOUL LED Chip

NICHIA LED Chip

NeXperia Chips

ONsemi Chips

ADI Chips