UCS3205

DS20006433A-page 4

 2020 Microchip Technology Inc.

Power-on Reset

VIN, VOUT Undervoltage

Lockout Threshold

VUV_HIGH

2.25

—

2.45

V

VIN, VOUT Undervoltage

Lockout Threshold

VUV_LOW

2.05

—

2.24

V

VIN, VOUT Undervoltage

Lockout Hysteresis

VUVLO_HYS

—150

—

mV

I/O Pins – FRS, DIR, EN, LATCH, DSC, FAULT#, VOV

Output Low Voltage

VOL

——

0.4

V

ISINK_IO = 8 mA, FAULT#

Input High Voltage

VIH

1.26

—

—

V

EN, LATCH, DSC, FRS, DIR

Input Low Voltage

VIL

—

—

0.54

V

EN, LATCH, DSC, FRS, DIR

Leakage Current

ILEAK

—

—

±10

µA

Powered or unpowered,

VPULLUP ≤ (1.8V-5.5V) (Note 1)

Overvoltage Sense

Threshold

VOV

1.225

1.25

1.275

V

Switch Turn-On Delay for

FRS

tFRS_SWAP

——

60

µs

VIN = 5V, CIN = 100 µF,

COUT = 10 µF,

VOUT ≥ 90% of VIN (Note 1)

FRS Pre-Arm Ready Time

tFRS_PREARM

—

200

270

µs

Minimum FRS hold time before

EN = 1, VIN > VUV_HIGH

Digital Input Deglitch Time

tDIG_HOLD

—

20

—

µs

Digital input hold time to be

asserted

Interrupt Pins – AC Parameters

Start-up FAULT# Blanking

Time

tFAULT

2.5

2.6

2.7

ms

Blanking time, coming out of Reset

(Note 2)

FAULT# Pin Overcurrent

Masking Time

tMASK

8

10

12

ms

USB PD required masking time

FAULT# Pulse Width

tFAULT_ACK

40

51

65

ms

Minimum time for FAULT# pin to

remain set to ‘low’

ELECTRICAL CHARACTERISTICS (CONTINUED)

Electrical Specifications: Unless otherwise indicated, TA = +25°C, VIN or VOUT = 2.85V to 22V.

Characteristic

Symbol

Min.

Typ.

Max.

Unit

Conditions

Note 1: This parameter is characterized, not 100% tested.

2: This parameter is ensured by design.