MAX20047AFPASLASHV+ datasheet(4/29 Pages) MAXIM

4 / 29 page

(TA = -40ºC to +125ºC. Typical values are at VSUPSW = +14V and TA = +25ºC, unless otherwise noted.) (Note 3)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

G_DMOS PIN (CHARGE PUMP)

Unloaded Output Voltage

VOCHP

Referenced to PV, internal

discharge path 2MΩ to ground

Output Impedance

ROCHP

kΩ

Output DC Current

IOCHP

VG_DMOS - PV > 8V (min),

10V (typ)

µA

HVDM_/HVDP_ DCP PINS

HVDP_/HVDM_ Short

Pulldown

RPD

300

500

750

kΩ

HVDP_/HVDM_ Off-Leakage

IHVD_OFF

HVDP_/HVDM_ = 18V, HVEN = 9V

µA

HVDP_/HVDM_

Overvoltage-Protection-

Trip Threshold

VOV_DAT

3.85

3.99

HVDM_/HVDP_

Overvoltage-Protection-

Response Time

tOV_DAT

HVDP_/HVDM_ OV rising

1.0

2.5

µs

SRC_DMOS1/SRC_DMOS2 USB POWER SWITCHES

SRC_DMOS_ Protection

Overvoltage

VOV_USB

SRC_DMOS_ rising

5.5

5.8

SRC_DMOS_ Protection-

Response Time

tOV_USB

200

SRC_DMOS_ Relative

Protection-Trip Threshold

VOV_REL

SRC_DMOS_ rising

VPV +

0.300

SRC_DMOS_ Relative

Protection-Response Time

tOV_REL

500

SRC_DMOS_ Undervoltage-

Protection Trip Absolute

VUV_USB

If ILIM < UV_USB, turn off;

if ILIM > UV_USB, stay on

4.3

4.45

4.6

SRC_DMOS_ Undervoltage-

Protection-Response Time

tUV_USB

SRC_DMOS rising OV_REL,

OV_USB (750ns typ rising)

300

PV Undervoltage Protection

VUV_PV

PV falling from 5V with slew rate

of 0.5V/µs, switch turned off

(with RL= 50Ω on; SRC_DMOS

measured when SRC_DMOS

goes low)

3.65

3.85

Electrical Characteristics (continued)

MAX20047

Dual 3A USB DCP Charger

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