4

TPS66020, TPS66021

SLVSEW8 – AUGUST 2019

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Product Folder Links: TPS66020 TPS66021

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Copyright © 2019, Texas Instruments Incorporated

Pin Functions (continued)

Pin

I/O

Reset State Description

Name

No.

VBUS

A2, B2, B3,

C2, C3, D2,

D3, E2, E3,

F2, F3, G2

Power

-

5-V to 20-V nominal input supply to PPHV or 5-V output supply from PP5V. Bypass

with capacitance CVBUS to GND.

VIN

G4

Power

-

Device input supply. Bypass with capacitance CVIN to GND.

VLDO

G3

Power

-

VIN supply or VBUS LDO regulated supply output from power multipexer. Bypass

with capacitance CVLDO to GND.

GND

B4

Ground

-

Ground. Connect all pins to ground plane.

OVP

F4

Analog

-

Selects VBUS OVP. Tie pin to VBUS resistor divider output to set desired VBUS

OVP level. Tie pin to GND to remove VBUS OVP function.

EN1

A3

Digital Input

Pull-down

Enable control signal for PPHV Sink and PP5V Source paths. Internal pull-down.

EN0

G1

Digital Input

Pull-down

Enable control signal for PPHV Sink and PP5V Source paths. Internal pull-down.

IREF

A4

Analog

Used to set the PP5V source path current limit bias using an external resistor tied

to GND.

FLT

A1

Digital

Output

Hi-Z

Fault Output Indicator. Active low. This pin is a true open-drain (no PMOS). Float

pin when unused.

(1)

Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings

only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended

Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

All voltage values are with respect to network GND. All GND pins must be connected directly to the GND plane of the board.

(3)

For VBUS, a TVS protection with a break down voltage falling between the Recommended and Absolute maximum ratings is

recommended, such as the TVS2200.

6 Specifications

6.1 Absolute Maximum Ratings

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

(1)

PARAMETER

MIN

MAX

UNIT

PP5V, EN0, EN1, FLT, VIN, VLDO

–0.3

6.2

V

OVP

–0.3

VBUS

V

VBUS, power path disabled (stand off voltage)

–0.5

32

V

–0.5

26

V

PPHV

–0.3

26

V

IREF

–0.3

4.5

V

Terminal positive source current IREF

Internally limited

mA

Terminal positive source current

VLDO sourced from VBUS VLDO

Internally limited

mA

VLDO sourced from VIN

100

mA

Storage temperature

–55

150

°C

(1)

JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2)

JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

6.2 ESD Ratings

VALUE

UNIT

Electrostatic discharge

±1000

V

±500