Datasheet > TPS65720_15

TPS65720_15

更新时间： 2024-11-16 02:58:35

品牌	Logo	应用领域
德州仪器 - TI		集成电源管理电路
页数	文件大小	规格书
50页	1633K
描述
Integrated PMIC

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中文翻译

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数据手册

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TPS65720_15 数据手册

TPS65720

TPS65721

www.ti.com

SLVS979 –OCTOBER 2009

PMU for Bluetooth Headsets

Check for Samples: TPS65720 TPS65721

FEATURES

DESCRIPTION

•

Battery Charger With Power Path Management

•

28 V Rated Power Path With:

The TPS65720 is a small power management unit

targeted for Bluetooth headsets or other portable low

power consumer end equipments. It contains an USB

friendly Lithium-Ion battery charger, a high efficient

step down converter, a low dropout linear regulator

and additional supporting functions. The device is

controlled by an I2C interface. Several settings can

be customized by the use of non volatile memory

which is factory programmed. The 2.25MHz

step-down converter enters a low power mode at light

load for maximum efficiency across the widest

possible range of load currents. For low noise

applications the devices can be forced into fixed

frequency PWM mode using the I2C compatible

interface. The device allows the use of small

inductors and capacitors to achieve a small solution

size. TPS65720 provides an output current of up to

200mA on the DCDC converter. The TPS65720 also

integrates one 200mA LDO. The LDO operates with

an input voltage range between 1.8V and 5.6V

allowing it to be supplied from the output of the

step-down converter or directly from the system

voltage.

–

100 mA Input Current Limit

500 mA input Current Limit

•

300 mA Charge Current

200 mA Step-Down Converter for TPS65720

400 mA Step-Down Converter for TPS65721

Up to 92% Efficiency

V_INRange for DCDC Converter From 2.3V to

5.6V

•

2.25 MHz Fixed Frequency Operation

Power Save Mode at Light Load Current

Output Voltage Accuracy in PWM Mode ±2%

100% Duty Cycle for Lowest Dropout

1 General Purpose 200mA LDO

V_INRange for LDO From 1.8V to 5.6V

I2C Compatible Interface

4GPIOs

Available in a 25 Ball WCSP With 0,4mm Pitch

and in 4mm × 4mm 32-Pin QFN Package

The TPS65720 comes in a small 25-ball wafer chip

scale package (WCSP) with 0,4mm ball pitch or a

4mm × 4mm QFN package with a 0,4mm pitch

(TPS65721).

APPLICATIONS

•

Bluetooth Headsets

•

Handheld Equipment

TPS65720

BAT

1uF

10k

LiIon

charger / power path

NTC

ISET

SYS

a charge

current of150mA

4.7uF / 6.3V

for

2.2uH

VDCDC1=2.05

360k

FB_DCDC1

DCDC1

200mA

4.7uF

22pF

150k

bluetooth chip

VINLDO1

2.2uF

VLDO1 = 1.85V

LDO1

200mA

VLDO1

Vin

4.7uF / 4V

2 x 100k

2 x 3.3k

RESET

INT

reset

generator

Reset

INT

startup logic

SYS

HOLD_LDO1

GPIO

PB_IN

HOLD_DCDC1

ON /

OFF

SCLK

SDAT

SCLK

SDAT

I2C interface

PGND

AGND

GPIO0

GPIO1

GPIO or

5mA current

sink

GPIO2

GPIO3

to SYS or VDCDC1

depending on LED

forward voltage

indication LEDs

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...50

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与TPS65720_15相关器件

型号	品牌	获取价格	描述	数据表
TPS657201YFFR	TI	获取价格	2 通道电源管理 IC (PMIC)，包含电池充电器、一个降压转换器和一个 LDO \| Y
TPS657201YFFT	TI	获取价格	2 通道电源管理 IC (PMIC)，包含电池充电器、一个降压转换器和一个 LDO \| Y
TPS657202YFFR	TI	获取价格	2 通道电源管理 IC (PMIC)，包含电池充电器、一个降压转换器和一个 LDO \| Y
TPS657202YFFT	TI	获取价格	2 通道电源管理 IC (PMIC)，包含电池充电器、一个降压转换器和一个 LDO \| Y
TPS65720YFFR	TI	获取价格	PMU for Bluetooth Headsets
TPS65720YFFT	TI	获取价格	PMU for Bluetooth Headsets
TPS65721	TI	获取价格	PMU for Bluetooth Headsets
TPS65721RSNR	TI	获取价格	PMU for Bluetooth Headsets
TPS65721RSNT	TI	获取价格	PMU for Bluetooth Headsets
TPS65735	TI	获取价格	PMU For Active Shutter 3D Glasses

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