Texas Instruments TPS6021 Series Скачать руководство пользователя страница 1 | Manualshive

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August 2000

Power Management Products

User’s Guide

SLVU030

查询SLVU030供应商

捷多邦，专业PCB打样工厂，24小时加急出货

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Содержание TPS6021 Series

Страница 1: ... August 2000 Power Management Products User s Guide 查询SLVU030供应商捷多邦专业PCB打样工厂 24小时加急出货 ...

Страница 2: ... this warranty Specific testing of all parameters of each device is not necessarily performed except those mandated by government requirements Customers are responsible for their applications using TI components In order to minimize risks associated with the customer s applications adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards ...

Страница 3: ...her devices of the TPS6021x family How to Use This Manual For more information about the EVM please read Chapter 1 Description of the EVM Chapter 2 includes the Physical Data and the Setup of the EVM Related Documentation From Texas Instruments Data sheet of TPS60210 TPS60211 TPS60212 TPS60213 literature number SLVS296 Erich Bayer Alexander Müller Hans Schmeller and Günter Sporer Charge Pump Techn...

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Страница 5: ...ayout of the EVM 2 4 2 3 Setup of the EVM 2 5 2 4 Evaluation Information 2 6 Figures 2 1 Schematic of the EVM 2 2 2 2 Placement of the Components 2 4 2 3 Single Layer of the EVM 2 4 2 4 Actual Size of the EVM 17 9 mm 10 2 mm 2 4 Tables 2 1 Bill of Material for the TPS60210 EVM 2 2 2 2 Pin Assignment of the Board to a 14 Pin Dual In Line Socket 2 5 ...

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Страница 7: ...210 has a low battery detector LBI input and LBO output The trip voltage of the LBI input is typically 1 18 V The TPS60210 can be programmed with an external resistive divider to the specific trip voltage for the application On the EVM the resistive divider on the LBI input is connected to VI and the trip voltage is set to 2 0 V typically The LBO output is an open drain output and is in a high imp...

Страница 8: ...uit For the TPS60211 and TPS60213 the LBI resistors should be removed and LBI connected to GND The LBO pullup resistor works as power good PG pullup and the LBO pad gives the PG signal Free samples of the other parts of the TPS6021x family can be ordered from http www ti com Use the SC Part Number Search to go to the product folder of the specific device ...

Страница 9: ...layout and setup of the EVM The layout of a charge pump circuit is critical therefore the given layout can be used as a reference and helps to reduce design and evaluation time Topic Page 2 1 Schematic of the EVM 2 2 2 2 Layout of the EVM 2 4 2 3 Setup of the EVM 2 5 2 4 Evaluation Information 2 6 Chapter 2 ...

Страница 10: ... MΩ Pullup for the open drain output LBO R4 1 MΩ Pullup for the SNOOZE input Table 2 1 contains the bill of material of the TPS60210EVM 167 The follow ing paragraph describes the use of some of the parts R1 and R2 adjust the input voltage of the LBI input for low battery detection The resistive divider on the EVM is connected to VI For the given resistor val ues the LBO signal will go active low i...

Страница 11: ...esistors must be removed For operation with the internal oscillator connect the SNOOZE signal to either the input voltage like on the EVM or a logic high level respectively or to a low level for operation in snooze mode The device can also be synchronized with an external oscillator signal For synchronization to an external oscillator sig nal the SNOOZE pin must be connected to this signal When th...

Страница 12: ... C3 C4 R2 C5 R3 R4 R1 IC1 Figure 2 3 Single Layer of the EVM Figure 2 4 Actual Size of the EVM 17 9 mm 10 2 mm Table 2 1 contains the values and description of the five capacitors and the four resistors that are placed on the EVM The EVM is built to fit into a 14 pin dual in line socket However not all 14 pins are used Only pins 1 to 3 7 8 and 12 to 14 of a dual in line socket are used Table 2 2 s...

Страница 13: ...tup of the EVM Follow these steps for proper operation of the EVM 1 Connect a load to the output between GND and OUT 33 Ω or 0 mA to 100 mA for 2 0 V VI 3 6 V 66 Ω or 0 mA to 50 mA for 1 8 V VI 2 V 132 Ω or 0 mA to 25 mA for 1 6 V VI 1 8 V Note Start up only with resistive load not with a current sink 2 Connect a dc power supply or a battery pack with an appropriate voltage between input IN and gr...

Страница 14: ...ion from high to low at LBO will occur Trip voltages other than 2 V can be adjusted by replacing the LBI resistive divider with the appropriate resistors For the correct resistor values for different trip voltages please refer to the TPS6021x data sheet literature number SLVS296 It is also possible to evaluate several different capacitors on the EVM A capacitor selection list with the measured out...

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