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參數(shù)資料
| 型號(hào)： | TPS65013RGZ |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | POWER AND BATTERY MANAGEMENT IC FOR Li-ION POWERED SYSTEMS |
| 中文描述： | 電源和電池管理集成電路鋰離子供電系統(tǒng) |
| 文件頁數(shù)： | 49/52頁 |
| 文件大?。?/td> | 844K |
| 代理商： | TPS65013RGZ |
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www.ti.com
DESIGN PROCEDURE
Inductor Selection for the Main and the Core Converter
The main and the core converters in the TPS65013 typically use a 6.2-μH and a 10-μH output inductor,
respectively. Larger or smaller inductor values can be used to optimize the performance of the device for specific
operation conditions. The selected inductor has to be rated for its dc resistance and saturation current. The dc
resistance of the inductance directly influences the efficiency of the converter. Therefore, an inductor with lowest
dc resistance is selected for highest efficiency.
IL
VO
1–
VO
VI
L
(3)
IL(max)
IO(max)
IL
2
(4)
TPS65013
SLVS517–AUGUST 2004
0 = turns the open-drain transistor OFF, hence the voltage at the GPIO pin is determined by the voltage to
which the pullup resistor is connected.
If a particular GPIO is programmed to be an input, then the contents of the relevant bit in B3-0 is defined by the
logic level at the GPIO pin. A logic low forces a
0
and a logic high forces a
1
. If a GPIO is programmed to be an
input, then any attempt to write to the relevant bit in B3-0 is ignored.
Equation 3 calculates the maximum inductor current under static load conditions. The saturation current of the
inductor should be rated higher than the maximum inductor current as calculated with Equation 3. This is needed
because during heavy load transient, the inductor current rises above the value calculated under Equation 3.
with:
The highest inductor current occurs at maximum V
I
.
Open core inductors have a soft saturation characteristic, and they can usually handle higher inductor currents
versus a comparable shielded inductor.
f = Switching frequency (1.25 MHz typical)
L = Inductor value
I
L
= Peak-to-peak inductor ripple current
I
Lmax
= Maximum inductor current
A more conservative approach is to select the inductor current rating just for the maximum switch current of the
TPS65013 (2 A for the main converter and 0.8 A for the core converter). Keep in mind that the core material from
inductor to inductor differs and has an impact on the efficiency especially at high switching frequencies.
Refer to Table 4 and the typical applications for possible inductors
Table 4. Tested Inductors
DEVICE
INDUCTOR VALUE
10 μH
10 μH
4.7 μH
4.7 μH
4.7 μH
5.3 μH
6.2 μH
6.0 μH
DIMENSIONS
6,0 mm
×
6,0 mm
×
2,0 mm
5,0 mm
×
5,0 mm
×
3,0 mm
5,5 mm
×
6,6 mm x 1,0 mm
5,0 mm
×
5,0 mm
×
3,0 mm
5,2 mm
×
5,2 mm
×
2,5 mm
5,7 mm
×
5,7 mm
×
3,0 mm
5,7 mm
×
5,7 mm
×
3,0 mm
7,0 mm
×
7,0 mm
×
3,0 mm
COMPONENT SUPPLIER
Sumida CDRH5D18-100
Sumida CDRH4D28-100
Coilcraft LPO1704-472M
Sumida CDRH4D28C-4.7
Coiltronics SD25-4R7
Sumida CDRH5D28-5R3
Sumida CDRH5D28-6R2
Sumida CDRH6D28-6R0
Core converter
Main converter
49
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|---|---|
| TPS65013RGZR | 功能描述:電池管理 Multi-Channel 1-cell Li-Ion RoHS:否 制造商:Texas Instruments 電池類型: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 |
| TPS65013RGZRG4 | 功能描述:電池管理 Multi-Channel 1-cell Li-Ion RoHS:否 制造商:Texas Instruments 電池類型: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 |
| TPS65013RGZT | 功能描述:電池管理 Multi-Channel 1-cell Li-Ion RoHS:否 制造商:Texas Instruments 電池類型: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 |
| TPS65013RGZT | 制造商:Texas Instruments 功能描述:IC POWER/BATTERY MGMT 48-QFN 制造商:Texas Instruments 功能描述:IC, POWER/BATTERY MGMT 48-QFN 制造商:Texas Instruments 功能描述:IC, POWER/BATTERY MGMT 48-QFN; Battery Type:Li-Ion, Li-Polymer; No. of Pins:48; No. of Series Cells:1; Operating Temperature Min:-40C; Operating Temperature Max:85C; MSL:MSL 2 - 1 year; SVHC:No SVHC (19-Dec-2012); Base ;RoHS Compliant: Yes |
| TPS65013RGZTG4 | 功能描述:電池管理 Multi-Channel 1-cell Li-Ion RoHS:否 制造商:Texas Instruments 電池類型: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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