Datasheet 搜索 > 电池管理芯片 > TI（德州仪器） > BQ24157SYFFR 数据手册 > BQ24157SYFFR 数据手册 1/45 页
￥ 922.842
BQ24157SYFFR 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
电池管理芯片
封装:
UFBGA-20
描述:
与 USB 完全兼容的全集成式开关模式单节锂离子充电器，bq24157S 20-DSBGA
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3Hot
典型应用电路图在P1P29
原理图在P12P13P14
封装尺寸在P40P42P43
标记信息在P40
封装信息在P39P40P41P42P43
技术参数、封装参数在P4
应用领域在P1P45
电气规格在P5P6P7P8P9P10
型号编号列表在P30
导航目录
BQ24157SYFFR数据手册
Page:
of 45 Go
若手册格式错乱，请下载阅览PDF原文件
C
VREF
33 n
F
C
BOOT
+
PACK–
PACK+
C
CSOUT
SCL
SDA
CSOUT
CSIN
PGND
SW
I
2
C BUS
VAUX
HOST
SCL
SDA
STAT
VREF
STAT
PMID
VBUS
V
BUS
C
IN
BOOT
OTG
U1
CD
R
SNS
C
CSIN
V
BAT
1 Fm
4.7 Fm
10 kW
10 kW
L 1 mH
O
C
O1
22 Fm
0.1 mF
0.1 mF
1 mF
bq24157S
C
O2
33 mF
OTG
CD
10 kW
10 kW
10 kW
C
IN
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
bq24157S
SLUSB76B –FEBRUARY 2013–REVISED MAY 2015
bq24157S 1.55-A Fully Integrated Switch-Mode One-Cell Li-Ion Charger
With Full USB Compliance and USB-OTG Support
Not Recommended for New Designs
1 Features • Boost Mode Operation for USB OTG:
– Input Voltage Range (from Battery):
1
• Integrated Power FETs for up to 1.55-A Charge
3.2 to 4.5 V
Rate
– Output for V
BUS
: 5.05 V, 350 mA
• Spread Spectrum Frequency Control for Improved
EMI Performance
• 2.1 × 2.0-mm, 20-Pin DSBGA Package
• High-Accuracy Voltage and Current Regulation
• Pin-to-Pin Compatible With bq24157 and bq24158
– Input Current Regulation Accuracy:
2 Applications
±5% (100 mA and 500 mA)
• Mobile and Smart Phones
– Charge Voltage Regulation Accuracy:
±0.5% (25°C), ±1% (0°C to 125°C)
• MP3 Players
– Charge Current Regulation Accuracy: ±5%
• Handheld Devices
• Factory Test-Mode for GSM Calibration Without a
3 Description
Battery
The bq24157S is a compact, flexible, high-efficiency,
• Input Voltage Based Dynamic Power
USB-friendly switch-mode charge management
Management (VIN DPM)
device for single-cell Li-ion and Li-polymer batteries
• Bad Adaptor Detection and Rejection
used in a wide range of portable applications. The
• Safety Limit Register for Maximum Charge
charge parameters can be programmed through an
Voltage and Current Limiting
I
2
C interface. The IC integrates a synchronous PWM
controller, power MOSFETs, input current sensing,
• High-Efficiency Mini-USB/AC Battery Charger for
high-accuracy current and voltage regulation, and
Single-Cell Li-Ion and Li-Polymer Battery Packs
charge termination, into a small DSBGA package.
• 20-V Absolute Maximum Input Voltage Rating
The IC charges the battery in three phases:
• 6.5-V Maximum Operating Input Voltage
conditioning, constant current, and constant voltage.
• Programmable Charge Parameters through I
2
C
The input current is automatically limited to the value
Compatible Interface (up to 3.4 Mbps):
set by the host.
– Input Current Limit
Device Information
(1)
– VIN DPM Threshold
PART NUMBER PACKAGE BODY SIZE (NOM)
– Fast-Charge/Termination Current
bq24157S DSBGA (20) 2.10 mm × 2.00 mm
– Charge Regulation Voltage (3.5 to 4.44 V)
(1) For all available packages, see the orderable addendum at
– Low Charge Current Mode Enable/Disable
the end of the data sheet.
– Termination Enable/Disable
Typical Application Circuit
• Synchronous Fixed-Frequency PWM Controller
Operating at 3 MHz With 0% to 99.5% Duty Cycle
• Automatic High Impedance Mode for Low Power
Consumption
• Robust Protection
– Reverse Leakage Protection Prevents Battery
Drainage
– Thermal Regulation and Protection
– Input/Output Overvoltage Protection
A. Use R
SNS
= 68 mΩ to program up to 1.25-A
• Status Output for Charging and Faults
charge current, use R
SNS
= 55 mΩ to
program up to 1.55-A charge current. For
• USB Friendly Boot-Up Sequence
detailed instructions, refer to the Detailed
• Automatic Charging
Design Procedure.
• Power Up System Without Battery
1
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.
器件 Datasheet 文档搜索
AiEMA 数据库涵盖高达 72,405,303 个元件的数据手册，每天更新 5,000 多个 PDF 文件
