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參數(shù)資料
| 型號： | ISL9203ACRZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 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, ROHS COMPLIANT, PLASTIC, DFN-10 |
| 文件頁數(shù)： | 13/14頁 |
| 文件大小： | 320K |
| 代理商： | ISL9203ACRZ |
13
FN6430.0
February 14, 2007
Input and Output Capacitor Selection
Due to the inductance of the power leads of the wall adapter
or USB source, the input capacitor type must be properly
selected to prevent high voltage transient during a hot-plug
event. A tantalum capacitor is a good choice for its high
ESR, providing damping to the voltage transient. Multi-layer
ceramic capacitors, however, have a very low ESR and
hence when chosen as input capacitor, a 1
Ω
series resistor
must be used, as shown in the Typical Applications Section,
to provide adequate damping.
The output capacitor can be any ceramic type with the value
higher than 0.1μF. However, if there is a chance the charger
will be used as an LDO linear regulator, a 10μF tantalum
capacitor is recommended. Note that the charger always
steps through the 15-cycle V
MIN
verification time before the
charge current rises to the constant charge current, as
discussed earlier. Hence, when using as an LDO, the
system should make sure not to load the charger heavily
until the 15-cycle verification is completed.
Working with Current-Limited Adapter
The ISL9203A can work with a current-limited adapter to
significantly reduce the thermal dissipation during charging.
Refer to the ISL6292 data sheet, which can be found at
http://www.intersil.com, for more details.
Board Layout Recommendations
The ISL9203A 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 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 23. PULL-UP CIRCUIT TO AVOID BATTERY
LEAKAGE CURRENT IN THE ESD DIODES
STATUS
VIN
ESD DIODE
C
EN
VCC
GND
VIN or
V2P8
R1
Note:
R
is approximately 240k
Ω
when EN is floating and
is approximately 140k
Ω
when the EN is grounded.
R
LKG
Q1
ISL9203A
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| ISL9203CRZR5220 | PT 32C 32#20 PIN RECP |
| ISL9203R5220 | RESISTOR 1.30M OHM 1/10W 1% 0603 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL9203ACRZ-T | 功能描述:IC CHRGR LI-ION/LI SGL 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
| ISL9203CRZ | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Li-ion/Li Polymer Battery Charger |
| ISL9203CRZR5220 | 功能描述:IC BATT CHARGER LI-ION 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:Impedance Track™ 功能:燃料，電量檢測計/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.4 V ~ 2.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:帶卷 (TR) 產(chǎn)品目錄頁面:1020 (CN2011-ZH PDF) 配用:BQ27350EVM-ND - BQ27350EVM 其它名稱:296-21665-2 |
| ISL9203CRZ-T | 制造商:Intersil 功能描述:Li-ion/Li Polymer Battery Charger |
| ISL9203CRZ-TR5220 | 功能描述:IC BATT CHARGER LI-ION 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
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