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Vedi Specifiche Tecniche

TPS2105DBVT +BOM

2.7-V to 5.5-V, 250-mΩ, 0.5-A, 1.3-Ω, 0.1-A power mux with active high enable and ind

Produttore:

Texas Instruments, Inc
ProduttorePart #:

TPS2105DBVT
Scheda dati:

TPS2105DBVT Scheda dati (PDF)
Type:

Source Selector Switch
FET Type:

N and P-Channel
Ratio - InputOutput:

2:1
Internal Switch(s):

Yes
EDA/CAD Modelli:

Richiedi modelli CAD gratuiti per TPS2105DBVT

TPS2105DBVT Descrizione generale

The TPS2104 and TPS2105 are dual-input, single-output power switches designed to provide uninterrupted output voltage when transitioning between two independent power supplies. Both devices combine one n-channel (250 m) MOSFET with a single output. The p-channel MOSFET (IN2) is used with auxiliary power supplies that deliver lower current for standby modes. The n-channel MOSFET (IN1) is used with a main power supply that delivers higher current required for normal operation. Low on-resistance makes the n-channel the ideal path for higher main supply current when power-supply regulation and system voltage drops are critical. When using the p-channel MOSFET, quiescent current is reduced to 0.75 uA to decrease the demand on the standby power supply. The MOSFETs in the TPS2104 and TPS2105 do not have the parasitic diodes, typically found in discrete MOSFETs, thereby preventing back-flow current when the switch is off.

Caratteristiche principali

Dual-Input, Single-Output MOSFET Switch With No Reverse Current Flow (No Parasitic Diodes)
IN1 . . . 250-m, 500-mA N-Channel; 18-uA Supply Current
IN2 . . . 1.3-, 100-mA P-Channel; 0.75-uA Supply Current (V_AUX Mode)
Advanced Switch Control Logic
CMOS and TTL Compatible Enable Input
Controlled Rise, Fall, and Transition Times
2.7 V to 5.5 V Operating Range
SOT-23-5 and SOIC-8 Package
\x9640°C to 85°C Ambient Temperature Range
Typical Applications
- Notebook and Desktop PCs
- Cell phone, Palmtops, and PDAs
- Battery Management

Specifiche

Category	Integrated Circuits (ICs)Power Management (PMIC)OR Controllers, Ideal Diodes	Series	-
Type	Source Selector Switch	FET Type	N and P-Channel
Ratio - Input:Output	2:1	Internal Switch(s)	Yes
Current - Output (Max)	500mA, 100mA	Current - Supply	18 µA
Voltage - Supply	2.7V ~ 5.5V	Applications	Handheld/Mobile Devices
Operating Temperature	-40°C ~ 85°C	Mounting Type	Surface Mount
Base Product Number	TPS2105	Number of input channels	2
IN1, IN2 input voltage (min) (V)	2.7	IN1, IN2 input voltage (max) (V)	5.5
IN1 rDS(on) (typ) (mΩ)	250	IN2 rDS(on) (typ) (mΩ)	1300
IN1 output current (max) (A)	0.5	IN2 output current (max) (A)	0.1
Rating	Catalog	Quiescent current (Iq) (µA)	0.75
Operating temperature range (°C)	-40 to 85	FET	Internal
Imax (A)	0.5	Features	Inrush current control, Reverse current blocking
Device type	Power muxes	Function	Inrush current control, Reverse current blocking

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