BQ24232RGTR datasheet, PDF - EEWORLD Datasheet

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BQ24232RGTR: DescriptionUSB Friendly 0.5A Li-ion charger w/ Dynamic power Management, 10.5V OVP 16-VQFN -40 to 85; CategoryPower/power management The power supply circuit; File Size3MB，46 Pages; ManufacturerBel Fuse; Environmental Compliance

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BQ24232RGTR Overview

USB Friendly 0.5A Li-ion charger w/ Dynamic power Management, 10.5V OVP 16-VQFN -40 to 85

BQ24232RGTR Parametric

Parameter Name	Attribute value
Brand Name	Texas Instruments
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Bel Fuse
Parts packaging code	QFN
package instruction	QFN-16
Contacts	16
Reach Compliance Code	compliant
ECCN code	EAR99
Factory Lead Time	1 week
Samacsys Confidence	3
Samacsys Status	Released
Samacsys PartID	335027
Samacsys Pin Count	17
Samacsys Part Category	Integrated Circuit
Samacsys Package Category	Quad Flat No-Lead
Samacsys Footprint Name	RGT0016C+
Samacsys Released Date	2020-03-24 06:26:48
Is Samacsys	N
Adjustable threshold	YES
Analog Integrated Circuits - Other Types	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code	S-PQCC-N16
JESD-609 code	e4
length	3 mm
Humidity sensitivity level	2
Number of channels	1
Number of functions	1
Number of terminals	16
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	PLASTIC/EPOXY
encapsulated code	HVQCCN
Encapsulate equivalent code	LCC16,.12SQ,20
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	260
power supply	4.5/10 V
Certification status	Not Qualified
Maximum seat height	0.9 mm
Maximum supply current (Isup)	1.5 mA
Maximum supply voltage (Vsup)	26 V
Minimum supply voltage (Vsup)	4.35 V
Nominal supply voltage (Vsup)	5 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal surface	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Threshold voltage nominal	+3.3V
Maximum time at peak reflow temperature	NOT SPECIFIED
width	3 mm
Base Number Matches	1

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bq24230, bq24232

SLUS821J – OCTOBER 2008 – REVISED MAY 2017

bq2423x USB-Friendly Lithium-Ion Battery Charger And Power-Path Management IC

1 Features

•

Fully Compliant USB Charger

– Selectable 100-mA and 500-mA Maximum

Input Current

– 100-mA Maximum Current Limit Ensures

Compliance to USB-IF Standard

– Input-based Dynamic Power Management

- DPM) for Protection Against Poor USB

Sources

28-V Input Rating With Overvoltage Protection

Integrated Dynamic Power-Path Management

(DPPM) Function Simultaneously and

Independently Powers the System and Charges

the Battery

Supports up to 500-mA Charge Current With

Current Monitoring Output (ISET)

Programmable Input Current Limit up to 500 mA

for Wall Adapters

Programmable Termination Current (bq24232)

Programmable Precharge and Fast-Charge Safety

Timers

Reverse Current, Short-Circuit, and Thermal

Protection

NTC Thermistor Input

Proprietary Start-Up Sequence Limits Inrush

Current

Status Indication – Charging/Done, Power Good

Small 3 mm × 3 mm 16-Lead QFN Package

The

bq2423x

features

dynamic

power-path

management (DPPM) that powers the system while

simultaneously and independently charging the

battery. The DPPM circuit reduces the charge current

when the input current limit causes the system output

to fall to the DPPM threshold, thus supplying the

system load at all times while monitoring the charge

current separately. This feature reduces the number

of charge and discharge cycles on the battery, allows

for proper charge termination, and enables the

system to run with a defective or absent battery pack.

Additionally, this enables instant system turn-on even

with a totally discharged battery. The power-path

management architecture also permits the battery to

supplement the system current requirements when

the adapter cannot deliver the peak system currents,

enabling the use of a smaller adapter.

The battery is charged in three phases: conditioning,

constant current, and constant voltage. In all charge

phases, an internal control loop monitors the IC

junction temperature and reduces the charge current

if the internal temperature threshold is exceeded.

The charger power stage and charge current sense

functions are fully integrated. The charger function

has high-accuracy current and voltage regulation

loops, charge status display, and charge termination.

The input current limit and charge current are

programmable using external resistors.

Device Information

(1)

PART NUMBER

bq24230

bq24232

PACKAGE

VQFN (16)

BODY SIZE (NOM)

3.00 mm × 3.00 mm

2 Applications

•

Bluetooth™

Devices

Low-Power Handheld Devices

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Typical Application Circuit

3 Description

The bq2423x series of devices are highly integrated

Li-ion linear chargers and system power-path

management devices targeted at space-limited

portable applications. The devices operate from either

a USB port or ac adapter and support charge

currents between 25 mA and 500 mA. The high-input-

voltage range with input overvoltage protection

supports low-cost, unregulated adapters. The USB

input current limit accuracy and start-up sequence

allow the bq2423x to meet USB-IF inrush current

specification. Additionally, the input dynamic power

management (V

-DPM) prevents the charger from

crashing poorly designed or incorrectly configured

USB sources.

PGOOD

CHG

SYSTEM

OUT

Adaptor

1mF

GND

4.7mF

VSS

bq24230

EN2

BAT

TMR

ISET

EN1

ILIM

4.7mF

PACK+

TEMP

2.94 k

4.32 k

PACK-

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

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