- 您现在的位置：买卖IC网 > PDF目录1839 > MAX17085GTL+ (Maxim Integrated Products)IC CHARGER/CTLR/LDO REG 40-TQFN PDF资料下载
参数资料
| 型号： | MAX17085GTL+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/38页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER/CTLR/LDO REG 40-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 功能： | 充电管理 |
| 电池化学： | 多化学 |
| 电源电压： | 4.5 V ~ 24 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（5x5） |
| 包装： | 托盘 |
当前第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页
EVALUA
19-5135; Rev 2; 3/12
TION KIT
AVA ILABLE
Integrated Charger, Dual Main Step-Down
Controllers, and Dual LDO Regulators
General Description
The MAX17085B is an all-in-one notebook power solution
integrating a multichemistry battery charger, dual fixed-
output Quick-PWM K step-down controllers, and dual
keep-alive linear regulators:
Charger: The high-frequency (~1.4MHz) multichem-
istry battery charger uses a current-mode, fixed
inductor current ripple architecture that significantly
reduces component size and cost. Low-offset sense
amplifiers allow the use of low-value sense resistors
for charging and input current limit.
The charger uses n-channel switching MOSFETs.
Adjustable charge current, charge voltage, and cell
selection allow for flexible use with different battery
packs. Charge current is set by an analog control input,
or a PWM input. High-accuracy current-sense ampli-
fiers provide fast cycle-by-cycle current-mode control to
protect against short circuits to the battery and respond
quickly to system load transients. Additionally, the char-
ger provides a high-accuracy analog output that is pro-
portional to the adapter current.
An integrated charge pump controls an n-channel
adapter selector switch. The charge pump remains
active even when the charger is off. When the adapter
is absent, a p-channel MOSFET selects the battery.
Main SMPS: The dual Quick-PWM step-down con-
trollers with synchronous rectification generate
the 5V and 3.3V main power in a notebook. Low-
side MOSFET sensing provides a simple low-cost,
Features
S All-in-One Charger Plus Dual Main Step-Down
Controllers
S 5V/100mA and 3.3V/50mA LDO Regulators
S Main
Dual Quick-PWM with Fast Transient Response
and Extended On-Time
300kHz to 800kHz Switching Frequency
Fixed 5V and 3.3V SMPS Outputs
Low-Noise Ultrasonic Mode
Autoretry Fault Protection
S Charger
High Switching Frequency (1.4MHz)
Selectable 2-, 3-, and 4-Cell Battery Voltage
Automatic Selection of System Power Source
Internal Charge-Pump for Adapter n-Channel
MOSFETs Drive
Q 0.4% Accurate Charge Voltage
Q 2.5% Accurate Input Current Limiting
Q 3% Accurate Charge Current
S Monitor Outputs for
AC Adapter Current ( Q 2% Accuracy)
Battery Discharge Current ( Q 2% Accuracy)
AC Adapter OK
S Analog/PWM (100Hz to 500kHz) Adjustable
Charge Current Setting
S AC Adapter Overvoltage and Overcurrent
Protection
highly efficient valley current-limit protection. The
MAX17085B also includes output undervoltage, out-
put overvoltage, and thermal-fault protection.
Notebook Computers
Applications
Separate enable inputs for each SMPS and a com-
bined open-drain power-good output allow flex-
ible power sequencing. Voltage soft-start reduces
inrush current, while passive shutdown discharges
the output through an internal switch. Fast transient
response, with an extended on-time feature reduces
output capacitance requirements. Selectable pulse-
skipping mode and ultrasonic mode improve light-
load efficiency. Ultrasonic mode operation maintains
a minimum switching frequency at light loads, mini-
mizing audible noise effects.
Dual LDO Regulators: An internal 5V/100mA LDO5 with
switchover can be used to either generate the 5V bias
needed for power-up or other lower power “always-on”
suspend supplies. Another 3.3V/50mA LDO3 provides
“always-on” power to a system microcontroller.
PDAs and Mobile Communicators
5V and 3.3V Supplies
2-to-4, Li+-Cell, Battery-Powered Devices
Ordering Information
PART TEMP RANGE PIN-PACKAGE
MAX17085B ETL+ -40°C to +85°C 40 TQFN-EP*
+ Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Pin Configuration appears at end of data sheet.
Quick-PWM is a trademark of Maxim Integrated Products, Inc.
_______________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1708EEE+T | IC REG BST 3.3V/5V/ADJ 5A 16QSOP |
| MAX17094ETM+T | IC REG BOOST ADJ 1A 7OUT 48TQFN |
| MAX1709ESE | IC REG BST 3.3V/5V/ADJ 4A 16SOIC |
| MAX17100ETM+T | IC REG BOOST INT-SWITCH 48-TQFN |
| MAX17101ETJ+T | IC REG CTRLR DIV PWM CM 32TQFNEP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17085GTL+ | 功能描述:电池管理 Dual Main Step-Down Controller RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17086GTL+ | 功能描述:电池管理 Dual Main Step-Down Controller RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17088ETX+ | 功能描述:显示驱动器和控制器 Boost & Level Shift for Notebook RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| MAX17088ETX+T | 功能描述:显示驱动器和控制器 Boost & Level Shift for Notebook RoHS:否 制造商:Panasonic Electronic Components 工作电源电压:2.7 V to 5.5 V 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Reel |
| MAX17088EVKIT+ | 功能描述:电源管理IC开发工具 MAX17088 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
发布紧急采购，3分钟左右您将得到回复。