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参数资料
| 型号： | MAX17085GTL+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/38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 |
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页当前第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
Integrated Charger, Dual Main Step-Down
Controllers, and Dual LDO Regulators
Pin Description (continued)
PIN
18
19
20
21
22
23
24
25
26
27
28
29
30
NAME
ACOK
CSIN
CSIP
BATT
PDSL
CSSN
CSSP
IINP
CELLS
CC
ACIN
VCTL
V CC
FUNCTION
AC-Detect Output. This open-drain output is low impedance when ACIN is greater than 1.5V, with a
delay of 44ms. The ACOK output remains high impedance when the MAX17085B is powered down.
Connect a 100k I pullup resistor from LDO3 or LDO5 to ACOK .
Output Current-Sense Negative Input
Output Current-Sense Positive Input. Connect a current-sense resistor from CSIP to CSIN.
Battery Voltage Feedback Input
Power Source Switch Driver Output. When the adapter is not present or an overvoltage and
overcurrent event is detected, the PDSL output is pulled to GND. Leave PDSL unconnected when it
is not used.
Input Current-Sense Negative Input
Input Current Sense for Positive Input. Connect a current-sense resistor from CSSP to CSSN.
Input Current Monitor Output. IINP sources the current proportional to the current sensed across
CSSP and CSSN. The gain from (CSSP - CSSN) to IINP is 60V/V:
V IINP = 60 x (V CSSP - V CSSN )
IINP also monitors the battery-discharge current when the adapter is absent. To monitor the
discharge current, set ISET above the PWM threshold. Pull ISET to GND to disable the IINP battery-
discharge current mode.
Trilevel Input for Setting Number of Cells:
U CELLS = open; charge with 2 times the cell voltage programmed at VCTL.
U CELLS = GND; charge with 3 times the cell voltage programmed at VCTL.
U CELLS > 2.8V; charge with 4 times the cell voltage programmed at VCTL.
Charger Loop-Compensation Point. External compensation node for the charge voltage and input
current-limit loops. Connect a 4.7nF to 47nF capacitor to GND. Typically a 10nF capacitor works for
most applications.
AC Adapter Detect Input. ACIN is the input to an uncommitted comparator. The ACOK detect
threshold is typically 1.5V. The ACOVP detect threshold is typically 2.1V. When ACIN is above the
ACOK detect threshold and below the ACOVP detect threshold, PDSL is enabled.
Cell Charge Voltage-Control Input. VCTL range is from GND to LDO5. For 4.375V/cell setting,
connect VCTL to REF:
V CELL = 2.083 x V VCTL
Analog Supply Voltage Input. Connect V CC to the system supply voltage with a series 47 I resistor,
and bypass to analog ground using a 1 F F or greater ceramic capacitor.
Dual-Mode Input for Setting Maximum Charge Current. In PWM mode, use input frequencies from
128Hz to 500kHz for charge-current setting. If there are no two edges within 20ms, ISET is directly
used as an analog input. In analog mode, charge current is set as follows:
× ISET
31
ISET
I CHG
=
100mV V
RS2 V REF
Pull ISET to GND to shut down the charger.
32
33
34
35
REF
GND
ILIM3
ILIM5
2.1V Voltage Reference and Device Power-Supply Input. Bypass REF with a 1 F F capacitor to GND.
Analog Ground
Valley Current-Limit Adjustment for SMPS3. The GND - LX3 current-limit threshold is 1/10 the voltage
present on ILIM3 over a 0.2V to 2.1V range.
Valley Current-Limit Adjustment for SMPS5. The GND - LX5 current-limit threshold is 1/10 the voltage
present on ILIM5 over a 0.2V to 2.1V range.
______________________________________________________________________________________
17
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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 |
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