參數(shù)資料
型號(hào)： ISL6292-2CR3-T
廠(chǎng)商： INTERSIL CORP
元件分類(lèi)： 電源管理
英文描述： Li-ion/Li Polymer Battery Charger
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
封裝： 3 X 3 MM, PLASTIC, DFN-10
文件頁(yè)數(shù)： 16/19頁(yè)
文件大小： 647K
代理商： ISL6292-2CR3-T
16
FN9105.6
July 25, 2005
Figure 29 shows the actual captured waveforms depicted in
Figure 27 (C). The constant charge current is 750mA. A step
in the adapter voltage during the transition from CC mode to
CV mode is demonstrated.
IREF Programming Using Current-Limited Adapter
The ISL6292 has 10% tolerance for the charge current.
Typically the current-limited adapter also has 10% tolerance.
In order to guarantee proper operation, it is recommended
that the nominal charge current be programmed
at least
30% higher
than the nominal current limit of the adapter.
Board Layout Recommendations
The ISL6292 internal thermal foldback function limits the
charge current when the internal temperature reaches
approximately 100°C. In order to maximize the current
capability, it is very important that the exposed pad under the
package is properly soldered to the board and is connected
to other layers through thermal vias. More thermal vias and
more copper attached to the exposed pad usually result in
better thermal performance. On the other hand, the number
of vias is limited by the size of the pad. The exposed pads for
the 5x5 and 4x4 QFN packages are able to have 9 and 5
vias respectively. The 3x3 DFN package allows 8 vias be
placed in two rows. Since the pins on the 3x3 DFN package
are on only two sides, as much top layer copper as possible
should be connected to the exposed pad to minimize the
thermal impedance. Refer to the ISL6292 evaluation boards
for layout examples.
FIGURE 27. THE OPERATING CURVES WITH THREE DIFFERENT CURRENT LIMITED ADAPTERS
V
PACK
Charge
Current
Power
TIME
V
IN
Const. Cur
Res
Limit
Constant Voltage
V
PACK
Charge
Current
Power
TIME
V
IN
Const. Cur
Constant Voltage
V
PACK
Charge
Current
Power
TIME
V
IN
Const. Cur
Constant Voltage
(C)
(A)
(B)
FIGURE 28. SCOPE CAPTURED WAVEFORMS SHOWING THE
THREE MODES
CC Mode
Resistance Limit Mode
CV Mode
FIGURE 29. SCOPE CAPTURED WAVEFORMS SHOWING THE
CASE THAT THE FULL-LOAD ADAPTER
VOLTAGE IS HIGHER THAN THE CRITICAL
VOLTAGE
1 hour
ISL6292
相關(guān)PDF資料
PDF描述
ISL6292-2CR3Z Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputs 20-TSSOP -40 to 85
ISL6292-2CR4 Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputs 20-TSSOP -40 to 85
ISL6292-2CR4-T Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputs 20-TSSOP -40 to 85
ISL6292-2CR4Z Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear and Preset 14-SOIC -40 to 85
ISL6292-2CR5 Li-ion/Li Polymer Battery Charger
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL6292-2CR3Z 功能描述:電池管理 LD VER OF ISL6292-2C R3 RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
ISL6292-2CR3Z-T 功能描述:電池管理 LD VER OF ISL6292-2C R3-T RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
ISL6292-2CR4 功能描述:IC BATT CHRGR LI-ION 4.2V 16-QFN RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱(chēng):MCP73831T-2ACI/OTCT
ISL6292-2CR4-T 功能描述:IC BATT CHRGR LI-ION 4.2V 16-QFN RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁(yè)面:669 (CN2011-ZH PDF) 其它名稱(chēng):MCP73831T-2ACI/OTCT
ISL6292-2CR4Z 功能描述:電池管理 LD VER OF ISL6292-2C R4 RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
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