- 您现在的位置：买卖IC网 > PDF目录150819 > TPS61032RSARG4 (TEXAS INSTRUMENTS INC) 4.5 A BATTERY CHARGE CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PQCC16 PDF资料下载
参数资料
| 型号： | TPS61032RSARG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 4.5 A BATTERY CHARGE CONTROLLER, 700 kHz SWITCHING FREQ-MAX, PQCC16 |
| 封装： | 4 X 4 MM, GREEN, PLASTIC, QFN-16 |
| 文件页数： | 5/28页 |
| 文件大小： | 877K |
| 代理商： | TPS61032RSARG4 |
第1页第2页第3页第4页当前第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
www.ti.com
APPLICATION INFORMATION
Design Procedure
Programming the Output Voltage
R3 + R4
V
O
V
FB
* 1 + 180 kW
V
O
500 mV *
1
(1)
C
parR3 +
10 pF
200 kW
R4
–1
(2)
SW
C1
Power
Supply
L1
R1
R2
VBAT
VOUT
FB
C2
C3
LBO
PGND
LBI
SYNC
EN
GND
TPS6103x
VCC
Boost Output
Control Output
R3
R4
R6
Programming the LBI/LBO Threshold Voltage
TPS61030
TPS61031, TPS61032
SLUS534D – SEPTEMBER 2002 – REVISED APRIL 2004
The TPS6103x dc/dc converters are intended for systems powered by a dual or triple cell NiCd or NiMH battery
with a typical terminal voltage between 1.8 V and 5.5 V. They can also be used in systems powered by one-cell
Li-Ion with a typical stack voltage between 2.5 V and 4.2 V. Additionally, two or three primary and secondary
alkaline battery cells can be the power source in systems where the TPS6103x is used.
The output voltage of the TPS61030 dc/dc converter section can be adjusted with an external resistor divider.
The typical value of the voltage on the FB pin is 500 mV. The maximum allowed value for the output voltage is
5.5 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 A, and the voltage across R6 is typically 500 mV. Based on those
two values, the recommended value for R4 should be lower than 500 k
, in order to set the divider current at 1
A or higher. Because of internal compensation circuitry the value for this resistor should be in the range of 200
k
. From that, the value of resistor R3, depending on the needed output voltage (V
O), can be calculated using
equation 1:
If as an example, an output voltage of 3.3 V is needed, a 1-M
resistor should be chosen for R3. If for any
reason the value for R4 is chosen significantly lower than 200 k
additional capacitance in parallel to R3 is
recommended. The required capacitance value can be easily calculated using Equation 2:
Figure 18. Typical Application Circuit for Adjustable Output Voltage Option
The current through the resistive divider should be about 100 times greater than the current into the LBI pin. The
typical current into the LBI pin is 0.01 A, and the voltage across R2 is equal to the LBI voltage threshold that is
generated on-chip, which has a value of 500 mV. The recommended value for R2 is therefore in the range of 500
k
. From that, the value of resistor R1, depending on the desired minimum battery voltage V
BAT, can be
calculated using Equation 3.
13
相关PDF资料 |
PDF描述 |
|---|---|
| TPS65023RSB | 3-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC40 |
| TPS659102A1RSLR | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC48 |
| TPS65070TRSLRQ1 | POWER SUPPLY SUPPORT CKT, PQCC48 |
| TS3810CXDRF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| TC151B2012EOA723 | 0.25 A SWITCHING REGULATOR, 50 kHz SWITCHING FREQ-MAX, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS61040 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW POWER DC/DC BOOST CONVERTER IN SOT-23 PACKAGE |
| TPS61040_07 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES |
| TPS61040DBV | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES |
| TPS61040DBVR | 功能描述:LED照明驱动器 28-V 400-mA Switch Boost Converter RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| TPS61040DBVR | 制造商:Texas Instruments 功能描述:Power Supply IC |
发布紧急采购，3分钟左右您将得到回复。