LP5813 datasheet(6/60 Pages) TI

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7.5 Electrical Characteristics

Unless specified otherwise, typical characteristics apply over the full ambient temperature range (–40°C < TA < +85°C ), VIN

= 3.6 V, VCC = 5 V, CIN = 1 μF, COUT = 1 μF.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Power Supply

VIN

Input voltage range

0.5

5.5

VIN_UVLO

Under-voltage lockout threshold

VIN rising

1.7

1.8

VIN falling

0.4

0.5

ISD

Shutdown current into VIN and SW

pin (LP5811/3)

IC disabled (EN = Low), VIN = 3.6 V, TA =

25°C

0.1

0.35

μA

ISTB

Standby current into VCC

pin (LP5810/2)

CHIP_EN = 0 (bit), VCC = 3.6 V

μA

ISTB

Standby current into VIN and SW

pin (LP5811/3)

CHIP_EN = 0 (bit), Boost enabled (EN

= High), VIN = 3.6 V, VOUT set to 3 V,

Pass-through mode

μA

Standby current into VOUT

pin (LP5811/3)

CHIP_EN = 0 (bit), Boost disabled (EN =

Low), VIN no supply, VOUT force to 5 V

μA

INOR

Normal operation current into VIN and

SW pin (LP5811/3)

CHIP_EN = 1 (bit), Boost enabled (EN

= High), VIN = 3.6 V, VOUT set to 3 V,

Pass-through mode, IOUT0 = IOUT1 = IOUT2

= IOUT3 = 25.5 mA (MC = 0, DC = 255,

PWM = 255)

0.45

0.65

INOR

Normal operation current into VOUT

pin (LP5811/3)

CHIP_EN = 1 (bit), Boost disabled (EN =

LOW), VOUT force to 3.6 V, IOUT0 = IOUT1

= IOUT2 = IOUT3 = 25.5 mA (MC = 0, DC =

255, PWM = 255)

0.4

0.6

INOR

Normal operation current into VCC

pin (LP5810/2)

CHIP_EN = 1 (bit), VCC = 5V, IOUT0

= IOUT1 = IOUT2 = IOUT3 = 25.5 mA (MC

= 0, DC = 255, PWM = 255)

0.4

0.6

Boost Output

VOUT

Output voltage setting range

5.5

VOVP

Output over-voltage protection

threshold

VOUT rising

5.5

5.7

5.9

VOVP_HYS

Over-voltage protection hysteresis

0.2

tSS

Soft startup time

From active EN to VOUT regulation. VIN =

1.8 V, COUT = 22 μF, IVOUT = 0 mA

450

μs

Boost Power Switch

RDS(on)

High-side MOSFET on resistance

VVOUT = 5 V

140

mΩ

Low-side MOSFET on resistance

VVOUT = 5 V

mΩ

fSW

Switching frequency

VIN = 3.6 V, VOUT set to 5.0 V, PWM mode

MHz

VIN = 1.0 V, VOUT set to 5.0 V, PFM mode

0.5

MHz

ILIM_SW

Valley current limit

VIN = 3.6 V, VOUT set to 5.0 V

1.6

IPRECHG

Pre-charge current

VIN = 3.6 V

350

LED Driver Output

RDS(on)_SW

Scan line switch MOSFET on

resistance

VVOUT = 3 V

1.4

RDS(on)_SW

Scan line switch MOSFET on

resistance

VVOUT = 5 V

0.7

1.1

ICS

Constant current sink output range

VIN = 3.6 V, VOUT set to 5 V, MC = 0,

manual_pwm_x = FFh (100% ON)

0.1

25.5

VIN = 3.6 V, VOUT set to 5 V, MC = 1,

manual_pwm_x = FFh (100% ON)

0.2

ICS_LKG

Constant current sink leakage current

VIN = 3.6 V, OUTx = 1 V, manual_pwm_x

= 0 (0%)

0.1

μA

LP5813

SNVSC74 – SEPTEMBER 2023

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