TPD3S044

Part: TPD3S014, TPD3S044 — Texas Instruments

Type: Current Limit Switch and D+/D- ESD Protection for USB Host Ports

Description: Integrated devices featuring a current-limited load switch and a two-channel transient voltage suppressor (TVS) based electrostatic discharge (ESD) protection diode array for USB interfaces, offering continuous current ratings of 0.5 A (TPD3S014) and 1.5 A (TPD3S044).

Operating Conditions:

• Supply voltage: 4.5–5.5 V
• Operating temperature: -40 to 125 °C
• Continuous output current: 0.5 A (TPD3S014), 1.5 A (TPD3S044)

Absolute Maximum Ratings:

• Max supply voltage: 6 V (IN, OUT, EN, D1, D2 pins)
• Max storage temperature: 150 °C

Key Specs:

• Input - Output resistance (TPD3S014): 97 mΩ (typ, at T J = T A = 25°C)
• Input - Output resistance (TPD3S044): 74 mΩ (typ, at T J = T A = 25°C)
• Current limit (TPD3S014): 0.85 A (typ, at T J = T A = 25°C)
• Current limit (TPD3S044): 2.15 A (typ, at T J = T A = 25°C)
• Short-circuit response time: 2 μs (typ, at V IN = 5 V)
• Supply current, switch disabled: 0.02 μA (typ, at I OUT = 0A)
• Supply current, switch enabled: 66 μA (typ, at I OUT = 0A)
• IEC 61000-4-2 contact discharge: ±12000 V (V OUT, Dx pins)
• IEC 61000-4-2 air-gap discharge: ±15000 V (V OUT, Dx pins)

Features:

• Fixed, Constant Current Limits
• Fast Overcurrent Response
• Integrated Output Discharge
• Reverse Current Blocking
• Short-Circuit Protection
• Over Temperature Protection With Auto-Restart
• Built-In Soft Start
• IEC 61000-4-2 Level 4 ESD Protection (External Pins)

Applications:

• Electronic Point of Sale (ESOP)
• USB Hubs
• Laptops, Desktops
• High-Definition Digital TVs
• Set-Top Boxes
• USB Ports
• 5-V Power Rails

Package:

• DBV (6) (2.90 mm × 2.80 mm × 1.45 mm)

• 1 · Continuous Current Ratings of 0.5 A and 1.5 A
• Fixed, Constant Current Limits of 0.85 A and 2.15 A (Typ)
• Fast Overcurrent Response - 2 μ s
• Integrated Output Discharge
• Reverse Current Blocking
• Short-Circuit Protection
• Over Temperature Protection With Auto-Restart
• Built-In Soft Start
• Ambient Temperature Range: -40°C to 85°C
• Product Regulatory Compliance
• -UL Recognized Component (UL 2367, Standard for Solid State Overcurrent Protectors)
• -CB File No. E169910 to IEC 60950-1, Information Technology Equipment
• IEC 61000-4-2 Level 4 ESD Protection (External Pins)
• -±12-kV Contact Discharge (IEC 61000-4-2)
• -±15-kV Air Gap Discharge (IEC 61000-4-2)

• End Equipment:
• -Electronic Point of Sale (ESOP)
• -USB Hubs
• -Laptops, Desktops
• -High-Definition Digital TVs
• -Set-Top Boxes
• Interfaces:
• -USB Ports
• -5-V Power Rails

1

• 2 GND

• 3 IN

6

5

• 4 OUT

EN

D2

D1

DBV Package 6-Pin SOT-23 Top View

Unless otherwise noted: VIN = 5 V, VEN = VIN, IOUT = 0 A. See Device Comparison Table for the rated current of each part number. Parametrics over a wider operational range are shown in the second Electrical Characteristics: -40°C ≤ TJ ≤ 125°C table.

over operating free-air temperature (unless otherwise noted) (1)(2)

over operating free-air temperature range (unless otherwise noted)

TPD3S0x4 are devices that feature a current limited load switch and a two-channel TVS based ESD protection diode array. They are typically used to provide a complete protection solution for USB host ports. USB host ports are required by the USB specification to provide a current limit on the VBUS path in order to protect the system from overcurrent conditions on the port that could lead to system damage and user injury. Additionally, USB ports typically require system level IEC ESD protection due to direct end-user interaction. The following design procedure can be used to determine how to properly implement TPD3S0x4s in your systems to provide a complete, one-chip solution for your USB ports.