The electrical ratings specified in this section apply to all specifications in this document, unless otherwise noted. These

specifications are interpreted as conditions that do not degrade the device parametric or functional specifications for the life

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Switching center frequency

RT = Floating

450

500

550

kHz

RT = GND

1000

1200

1350

RT = 71.5 kΩ

310

RT = 9.09 kΩ

2100

Minimum ON pulse width

70

ns

Minimum OFF pulse width

140

ns

Maximum ON pulse width

7

μs

OUTPUT OVERVOLTAGE AND UNDERVOLTAGE PROTECTION

Output OVP threshold

OVP detect (L→H)

112%

115%

118%

Hysteresis

5%

Output UVP threshold

UVP detect (H→L)

65%

UV hiccup ON time before entering

hiccup mode after soft start ends

256

μs

UV hiccup OFF time before restart

10.5 ×

S

THERMAL SHUTDOWN

Thermal shutdown threshold

Shutdown temperature

165

°C

Hysteresis

30

°C

SPREAD SPECTRUM FREQUENCY

Modulation frequency

128

kHz

Internal spread oscillator frequency

±6%

(1)

Not production tested, ensured by design.

TPS62933

SLUSEA4A – JUNE 2021 – REVISED DECEMBER 2021

www.ti.com

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