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器件3D模型￥ 1.46
BQ24295RGER 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
电池充电器
封装:
VQFN-24
描述:
I2C控制3A单节USB充电器窄VDC 4.5-5.5V可调电压为1.5A同步升压操作 I2C Controlled 3A Single Cell USB Charger With Narrow VDC 4.5-5.5V Adjustable Voltage at 1.5A Synchronous Boost Operation
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3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P5P6Hot
典型应用电路图在P39
原理图在P15
封装尺寸在P46P48P49
标记信息在P46
封装信息在P45P46P47P48P49
技术参数、封装参数在P6
应用领域在P1
电气规格在P7P8P9P10
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BQ24295RGER数据手册
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VBUS
PMID
OTG
D+
D–
STAT
SDA
SCL
INT
CE
SW
BTST
REGN
PGND
SYS
BAT
ILIM
TS
+3.3V
Host
REGN
SYS
USB
5V USB
bq24295
Phone
Tablet
BATTERY
C5
10 Fm
C1
C2
1 Fm
C3
47nF
C4
4.7 Fm
L1
2.2 Hm
SYS
SDP/DCP
Thermal Pad
R1
317W
(1.5A max)
RTH
10kW
RT1
5.25kW
RT2
31.23kW
R2
2.2kW
R3
10kW
R4
10kW
R5
10kW
R6
10kW
C6
10 Fm
C7
10 Fm
20 F minm
QON
Optional
Charge Enable (0°C - 45°C)
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Folder
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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.
bq24295
SLUSBC1B –SEPTEMBER 2013–REVISED DECEMBER 2016
bq24295 I
2
C Controlled 3A Single Cell USB Charger With Narrow VDC
4.5-5.5V Adjustable Voltage at 1.5A Synchronous Boost Operation
1 Features
1
1
• 90% High Efficiency Switch Mode 3-A Charger
• 3.9-V to 6.2-V Single Input USB-Compliant
Charger with 6.4-V Over-Voltage Protection
– USB Host or Charging Port D+/D- Detection
Compatible to USB Battery Charger Spec
(BC1.2)
– Support Non-Standard 2-A/1-A Adapters
Detection
– Input Voltage and Current Limit Supports
USB2.0 and USB 3.0
– Input Current Limit: 100 mA, 150 mA, 500 mA,
900 mA, 1 A, 1.5 A, 2 A, and 3 A
• Synchronous Boost Converter in Battery Boost
Mode with
– Adjustable Output 4.55 V – 5.5 V at 1.5 A
– 90% 5.1-V Boost Mode Efficiency
– Fast OTG Startup (22 ms Typ)
• Narrow VDC (NVDC) Power Path Management
– Instant System On with No Battery or Deeply
Discharged Battery
– Ideal Diode Operation in Battery Supplement
Mode
• 1.5-MHz Switching Frequency for Low Profile 1.2-
mm Inductor
• I
2
C Port for Optimal System Performance and
Status Reporting
• Autonomous Battery Charging with or without
Host Management
– Battery Charge Enable
– Battery Charge Preconditioning
– Charge Termination and Recharge
• High Accuracy
– ±0.5% Charge Voltage Regulation
– ±7% Charge Current Regulation
– ±7.5% Input Current Regulation
– ±3% Output Voltage Regulation in Boost Mode
• High Integration
– Power Path Management
– Synchronous Switching MOSFETs
– Integrated Current Sensing
– Bootstrap Diode
– Internal Loop Compensation
• Safety
– Battery Temperature Sensing for Charging and
Discharging in Boost Mode
– Battery Charging Safety Timer
– Thermal Regulation and Thermal Shutdown
– Input and System Over-Voltage Protection
– MOSFET Over-Current Protection
• Charge Status Outputs for LED or Host Processor
• Maximum Power Tracking Capability by Input
Voltage Regulation
• 20-µA Low Battery Leakage Current and Support
Shipping Mode
• 4mm x 4mm VQFN-24 Package
2 Applications
• Power Bank for Smartphone, Tablet
• Portable Media Players
• Internet Devices
3 Description
The bq24295 is a highly-integrated switch-mode
battery charge management and system power path
management devices for 1 cell Li-Ion and Li-polymer
battery in a wide range of power bank, tablet and
other portable device applications.
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
bq24295 VQFN (24) 4.00 mm x 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
bq24295 with USB D+/D- Detection for Charging
and Discharging in Boost Mode
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