PLM5177DCPR datasheet(9/54 Pages) TI

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6.5 Electrical Characteristics

Typical values correspond to TJ = 25°C. Minimum and maximum limits apply over TJ = –40°C to 150°C. Unless otherwise

stated, V(BIAS) = 12 V

PARAMETER

MIN

TYP

MAX UNIT

SUPPLY CURRENT

Shutdown current into VIN

V(VIN) = 12 V, V(BIAS) = 0

V, V(EN) = 0 V

2.8

µA

Shutdown current into BIAS

V(VIN) = 0 V, V(EN) = 0 V

2.8

µA

Stand-by current into VIN

V(VIN) = 78 V, V(BIAS) = 0

V, 0.7 V > V(EN) ≤ 1.25 V

µA

Quiescent current into BIAS

V(EN) = 3.3 V, V(FB) > 1 V,

μSleep enabled

µA

IIL

Low-level input current

EN/UVLO

V(EN/UVLO) ≤ 0.55 V

±0.01

µA

VCC REGULATOR

VCC regulation

VBIAS 12.0 V, I(VCC) = 20 mA

VVIN 12.0 V, I(VCC) = 20 mA

BIAS LDO load regulation in dropout

operation

VBIAS = 3.5 V, I(VCC) = 50 mA

200

VCC line regulation

I(VCC) = 1 mA

V(VIN) = 3.5 V, V(BIAS) =

6.7 V to 42 V

±1%

V(BIAS) = 0 V, V(VIN) = 6.7

V to 78 V

±1%

BIAS LDO dropout load regulation

V(BIAS) = 6.7 V, V(VIN) =

3.5 V

I(VCC) = 1 mA to 200 mA

VIN LDO dropout load regulation

V(BIAS) = 0 V, V(VIN) = 6.7

I(VCC) = 1 mA to 175 mA

VCC UVLO delay

VCC rising

μs

VCC sourcing current limit

VCC = 3.7 V, TJ = 25°C

to 150°C

V(BIAS) = 0 V, V(VIN) = 6.7

200

V(BIAS) = 6.7 V, V(VIN) =

3.5 V

200

VT+(VCC)

Positive-going threshold

V(VCC) rising

3.45

VT-(VCC)

Negative-going threshold

V(VCC) falling

3.25

VT+

(VCC,SUP)

Positive-going threshold for LDO

switch-over

6.5

ENABLE

VT+(EN)

Enable positive-going threshold

EN rising

0.63

VT-(EN)

Enable negative-going threshold

EN falling

0.6

Vhyst(EN)

Enable threshold hysteresis

EN falling

td(EN)

Shutdown delay time

μs

UVLO

VT+(UVLO)

UVLO positive-going threshold

V(EN/UVLO) rising

1.28

VT-(UVLO)

UVLO negative-going threshold

V(EN/UVLO) falling

1.23

Vhyst(UVLO)

UVLO threshold hysteresis

V(EN/UVLO) falling

IUVLO

UVLO hystereses sinking current

0.7 V ≤ V(EN/UVLO) < 1.24 V

µA

Enable time to start switching

VCC = 5 V, VT+(UVLO) > 1.3 V

μs

td(UVLO)

UVLO detection delay time

V(EN/UVLO) falling; V(VDET) falling

µs

SYNC

VT+(SYNC)

Sync input positive-going threshold

1.19

VT-(SYNC)

Sync input negative-going threshold

0.41

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LM5177

SNVSBU4A – JUNE 2022 – REVISED OCTOBER 2022

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