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參數(shù)資料
| 型號(hào)： | TPS618 |
| 英文描述： | PHOTOTRANSISTOR | NPN | 870NM PEAK WAVELENGTH | 50M | LED-7C |
| 中文描述： | 光電晶體管|叩| 870nm尖峰波長(zhǎng)|五十米|發(fā)光二極管- 7C條 |
| 文件頁數(shù)： | 14/22頁 |
| 文件大小： | 392K |
| 代理商： | TPS618 |
TPS61000, TPS61001, TPS61002, TPS61003, TPS61004, TPS61005, TPS61006, TPS61007
SINGLE-AND DUAL-CELL BOOST CONVERTER WITH START-UP INTO FULL LOAD
SLVS279B – MARCH 2000 – REVISED AUGUST 2000
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
The TPS6100x boost converter family is intended for systems that are powered by a single-cell NiCd or NiMH
battery with a typical terminal voltage between 0.9 V to 1.6 V. It can also be used in systems that are powered
by two-cell NiCd or NiMH batteries with a typical stack voltage between 1.8 V and 3.2 V. Additionally, single-
or dual-cell, primary and secondary alkaline battery cells can be the power source in systems where the
TPS6100x is used.
programming the TPS61000 and TPS61007 adjustable output voltage devices
The output voltage of the TPS61000 and TPS61007 can be adjusted with an external resistor divider. The typical
value of the voltage on the FB pin is 500 mV in fixed frequency operation and 485 mV in the power-save
operation mode. The maximum allowed value for the output voltage is 3.3 V. The current through the resistive
divider should be about 100 times greater than the current into the FB pin. The typical current into the FB pin
is 0.01
μ
A, the voltage across R4 is typically 500 mV. Based on those two values, the recommended value for
R4 is in the range of 500 k
in order to set the divider current at 1
μ
A. From that, the value of resistor R3,
depending on the needed output voltage V
OUT
, can be calculated using the following equation:
R3
R4
VO
VFB
1
500 k
VO
500 mV
1
(1)
If, as an example, an output voltage of 2.5 V is needed, a 2-M
resistor should be chosen for R3.
VBAT
VOUT
LBO
5
10
3
R5
R3
R4
6
TPS61007
LBI
9
FB
COMP
2
CC1
100 pF
CC2
33 nF
RC
10 k
EN
R2
R1
1
GND
SW
7
4
Ci
10
μ
F
10 V
CO
22
μ
F
10 V
Low Battery
Warning
L1
33
μ
H
D1
FBGND
8
VO
Alkaline Cell
Figure 18. Typical Application Circuit for Adjustable Output Voltage Option
The TPS61007 is an improved version of the TPS61000 adjustable output voltage device.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS61000DGSR | SMPS Controller |
| TPS61001DGSR | SMPS Controller |
| TPS61002DGSR | SMPS Controller |
| TPS61003DGSR | SMPS Controller |
| TPS62100DR | Analog IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS62000DGS | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Adj 600mA Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62000DGS | 制造商:Texas Instruments 功能描述:BUCK CONVERTER ADJ O/P SMD 62000 |
| TPS62000DGS | 制造商:Texas Instruments 功能描述:HIGH EFFICIENCY STEP-DOWN CONVERTER :ROH |
| TPS62000DGSG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Adj 600mA Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS62000DGSR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Adj 600mA Hi-Eff Step-Down Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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