APR349

Document number: DS43554 Rev. 2 - 2

4 of 10

www.diodes.com

July 2021

© Diodes Incorporated

APR349

Electrical Characteristics (@ VOUT = 5V, TA = -40°C < TA < +85°C, unless otherwise specified.)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Output Voltage ( VOUT Pin )

VOUT_ON

LDO Enable Threshold When VOUT

Rising

—

4.1

4.4

4.7

V

VOUT_OFF

LDO Disable Threshold When VOUT

Falling

—

4.0

4.3

4.6

V

Internal Supply Section (VDD Pin )

VDD_ON

VDD Startup Voltage

—

3.55

3.75

3.95

V

VDD_OFF

VDD UVLO Voltage

—

3.35

3.55

3.75

V

VDD_REG

VDD Regulation Voltage（Include

VVDD_REG_OUT , VVDD_REG_DRAIN ）

VVDD_REG_OUT, VOUT = 12V,

VDRAIN = 12V

5

5.5

6

V

VVDD_REG_DRAIN, VOUT = 3V,

VDRAIN = 12V

5.3

5.7

6.5

V

ISTARTUP

VDD Startup Current

VOUT = 0，

VDD = VDD_ST - 0.1V

—

140

165

µA

IMAX_VDD

Maximum Charging Current from LDO to

VDD

VOUT = 12V

65

90

120

mA

IQ_VDD

Quiescent Current

VDD = 5.0V, VOUT = 0

—

215

255

µA

DRAIN Detection (DRAIN Pin )

VON_TH

Gate Turn-On Threshold Voltage

Voltage at DRAIN Pin

-225

-200

-175

mV

VON_REG

Gate Turn-On Regulation Voltage

Voltage at DRAIN Pin

-50

-40

-30

mV

VON_OFF

Gate Turn-Off Threshold Voltage

Voltage at DRAIN Pin

-15

-7

0

mV

ICHG_VDD

Maximum Charging Current from DRAIN

to VDD

VDRAIN = 12V

55

75

100

mA

Gate Driver (

GATE Pin )

VGATE_H

Gate Output High Voltage

VDD = 5V

4.9

—

5

V

VGATE_L_PRE

Gate Output Low Voltage before Startup

VDD = 0, VDRAIN = 8V,

ILOAD = 100mA

—

200

300

mV

VGATE_L

Gate Output Low Voltage after Startup

VDD ≥ VDD_ON,

ILOAD = 100mA

—

70

140

mV

ISOURCE_MAX

Maximum GATE Sourcing Current

(Note 7)

—

0.6

—

A

ISINK_MAX

Maximum GATE Sinking Current

(Note 7)

—

3.5

—

A

RGATE_L

GATE Pull-Low Resistance

IG_LOAD = 100mA, VDD = 5V

—

0.7

1.4

Ω

Control Section

tON_MIN

GATE Minimum On Time

—

0.65

0.9

1.15

µs

tOFF_MIN

GATE Minimum Off Time

—

0.35

0.5

0.71

µs

tD_ON

Turn-On Delay

CLOAD = 2.2nF

—

30

60

ns

tD_OFF

Turn-Off Propagation Delay

—

—

15

45

ns

Kqs

A Fixed Coefficient Correlated with

Voltage-Second Area Criteria

—

0.43

0.5

0.57

mA*

μs

Note:

7. Guaranteed by design.