TPS61280E

Name: TPS61280E
Brand: TI
SKU: TPS61280E
Price: 0.462 USD

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4,8 V, 4,5 A, DC/DC-Aufwärtswandler mit echtem Bypass und 1,2-V-E/A-Logik

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Datenblatt

document-pdfAcrobat TPS6128xD/E Low-IQ, Wide-Voltage Battery Front-End DC/DC Converter for Single-Cell Li-Ion, Ni-Rich, Si-Anode Applications datasheet (Rev. B) (Englisch) PDF | HTML

TPS61280E

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Datenblatt

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Produktdetails

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Boost

Type

Converter

Vin (min) (V)

2.3

Vin (max) (V)

4.85

Switching frequency (min) (kHz)

2300

Switching frequency (max) (kHz)

2300

Features

Bypass Mode Pass-through Mode, I2C interface, Synchronous Rectification

Vout (min) (V)

2.85

Vout (max) (V)

4.4

Iq (typ) (µA)

Duty cycle (max) (%)

Switch current limit (typ) (A)

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Topology

Boost

Type

Converter

Vin (min) (V)

2.3

Vin (max) (V)

4.85

Switching frequency (min) (kHz)

2300

Switching frequency (max) (kHz)

2300

Features

Bypass Mode Pass-through Mode, I2C interface, Synchronous Rectification

Vout (min) (V)

2.85

Vout (max) (V)

4.4

Iq (typ) (µA)

Duty cycle (max) (%)

Switch current limit (typ) (A)

DSBGA (YFF)

3.24 mm² 1.8 x 1.8

95% efficiency at 2.3 MHz operation
3-µA quiescent current in low I Q pass-through mode
Wide V IN range from 2.3 V To 4.8 V
I OUT ≥ 4-A (Peak) at V OUT = 3.35 V, V IN ≥ 2.65 V
Integrated pass-through mode (35 mΩ)
Programmable valley inductor current limit and output voltage
True pass-through mode during shutdown
Best-in-class line and load transient
Low-ripple light-load PFM mode
In-Situ customization with On-Chip E 2PROM (write protection)
Two interface options:
- I 2C compatible I/F up to 3.4 Mbps (TPS61280D/E)
- Simple I/O logic control interface
Thermal shutdown and overload protection
Total solution size < 20 mm 2, sub 1-mm profile

95% efficiency at 2.3 MHz operation
3-µA quiescent current in low I Q pass-through mode
Wide V IN range from 2.3 V To 4.8 V
I OUT ≥ 4-A (Peak) at V OUT = 3.35 V, V IN ≥ 2.65 V
Integrated pass-through mode (35 mΩ)
Programmable valley inductor current limit and output voltage
True pass-through mode during shutdown
Best-in-class line and load transient
Low-ripple light-load PFM mode
In-Situ customization with On-Chip E 2PROM (write protection)
Two interface options:
- I 2C compatible I/F up to 3.4 Mbps (TPS61280D/E)
- Simple I/O logic control interface
Thermal shutdown and overload protection
Total solution size < 20 mm 2, sub 1-mm profile

The TPS6128xD/E device provides a power supply solution for products powered by either by a Li-Ion, Nickel-Rich, Silicon Anode, Li-Ion or LiFePO4 battery. The voltage range is optimized for single-cell portable applications like in smart-phones or tablet PCs.

Used as a high-power pre-regulator, the TPS6128xD/E extends the battery run-time and overcomes input current- and voltage limitations of the powered system.

While in shutdown, the TPS6128xD/E operates in a true pass-through mode with only 3-µA quiescent consumption for longest battery shelf life.

During operation, when the battery is at a good state-of-charge, a low-ohmic, high-efficient integrated pass-through path connects the battery to the powered system.

If the battery gets to a lower state of charge and its voltage becomes lower than the desired minimum system voltage, the device seamlessly transits into boost mode to uses the full battery capacity.

Used as a high-power pre-regulator, the TPS6128xD/E extends the battery run-time and overcomes input current- and voltage limitations of the powered system.

While in shutdown, the TPS6128xD/E operates in a true pass-through mode with only 3-µA quiescent consumption for longest battery shelf life.

During operation, when the battery is at a good state-of-charge, a low-ohmic, high-efficient integrated pass-through path connects the battery to the powered system.

If the battery gets to a lower state of charge and its voltage becomes lower than the desired minimum system voltage, the device seamlessly transits into boost mode to uses the full battery capacity.

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Technische Dokumentation

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	Typ	Titel		Datum
*	Data sheet	TPS6128xD/E Low-IQ, Wide-Voltage Battery Front-End DC/DC Converter for Single-Cell Li-Ion, Ni-Rich, Si-Anode Applications datasheet (Rev. B)	PDF \| HTML	17 Mai 2019

Design und Entwicklung

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Evaluierungsplatine

TPS61280EVM-585 — Nieder-, Weitspannungs-Batterie-Frontend-DC/DC-Wandler mit I2C-Schnittstelle – Evaluierungsmodul

The TPS61280EVM-585 Evaluation Module (EVM) demonstrates the Texas Instruments TPS61280 Low-, Wide- Voltage Battery Front-End DC/DC Converter with I2C interface. The EVM converts a 2.3V to 4.8V input voltage to a programmable, regulated Voltage in the range from 2.85V to 4.40V. The output voltage (...)

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