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TPS2074DB

Pwr controller for Bus/Self Pwrd USB Hub with 3.3V LDO, 8 pwr switches, Act-Low BPMode indicator

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

TPS2074DB
Datasheet:

TPS2074DB Datasheet (PDF)
Switch Type:

USB Switch
Number of Outputs:

4
Ratio - InputOutput:

1:4
Output Configuration:

High Side
EDA/CAD Models:

Request Free CAD Models for TPS2074DB

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

TPS2074DB General Description

The TPS2074 and TPS2075 provide a complete USB hub power solution by incorporating three major functions: current-limited power switches for four ports, a 3.3-V 100-mA regulator, and a DP0 line control to signal attach/detach of the hub.

These devices are designed to meet bus-powered and self-powered hub requirements. These devices are also designed for hybrid hub implementations and allow for automatic switching from self-powered mode to bus-powered mode if loss of self-power is experienced. This feature can be disabled by applying a logic high to the BP_DIS input

Each port has a current-limited 100-m N-channel MOSFET high-side power switch for 100-mA bus-powered operation. All the N-channel MOSFETs are designed without parasitic diodes, preventing current backflow into the inputs.

For applications where a 5-V regulator is needed, use the TPS2070 or TPS2071 device.

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Key Features

Complete USB Hub Power Solution
Meets USB Specifications 1.1 and 2.0
Independent Thermal and Short-Circuit Protection
3.3-V Regulator for USB Hub Controller
Overcurrent Logic Outputs
4.5-V to 5.5-V Operating Range
CMOS- and TTL-Compatible Enable Inputs
185 uA Bus-Power Supply Current
Available in 24-Pin SSOP Package
-40°C to 85°C Ambient Temperature Range

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Power Distribution Switches, Load Drivers	Series	-
Switch Type	USB Switch	Number of Outputs	4
Ratio - Input:Output	1:4	Output Configuration	High Side
Output Type	N-Channel	Interface	On/Off
Voltage - Load	4.5V ~ 5.5V	Voltage - Supply (Vcc/Vdd)	Not Required
Current - Output (Max)	100mA	Rds On (Typ)	100mOhm
Input Type	-	Features	Power Good, Status Flag
Fault Protection	Over Temperature	Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount	Base Product Number	TPS2074
Product type	Fixed current limit, Power switch, Switch with LDO	Vin (min) (V)	4.5
Vin (max) (V)	5.5	Current limit (A)	0.2
Operating temperature range (°C)	-40 to 125	Current limit accuracy at 1 A	0.4
Rating	Catalog	feature-type	USB HUB Power Controllers
feature-number-of-switches	4	feature-process-technology
feature-current-limit-a	0.2	feature-minimum-input-voltage-v	0
feature-maximum-input-voltage-v	5.5	feature-number-of-outputs
feature-minimum-output-current-a		feature-operating-supply-voltage-range-v
feature-maximum-power-dissipation-mw	889.7	feature-switch-on-resistance-mohm	500
feature-typical-turn-on-delay-time-us		feature-typical-turn-off-delay-time-us
feature-packaging	Tube	feature-rad-hard
feature-pin-count	24	feature-cecc-qualified	No
feature-esd-protection		feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-eccn-code	EAR99	feature-svhc	No
feature-svhc-exceeds-threshold	No