ACT43750 datasheet(11/43 Pages) QORVO

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Data Sheet Rev. F, February 10, 2025 | Subject to change without notice

11 of 43

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ACT43750

RF POL Drain-Switch Driver / Gate-bias Regulator

Parameter

Conditions

Min

Typ

Max

Units

Logic I/O

VOL(PG),VOL(XINT)

PG, XINT Output Voltage

1 mA Current into the device from the PG, XINT

0.4

VIT+(SYNC)

SYNC Input Threshold

VSYNC rising edge detection

1.425

1.5

1.575

VHYS(SYNC)

SYNC Input Hysteresis

VSYNC falling edge detection

-0.1

VIT+

ENCAL, ENG, ENTX, PG

Input Threshold

Rising edge for HLOGIC

1.25

VIT-

ENCAL, ENG, ENTX, PG

Input Threshold

Falling edge for HLOGIC

0.55

Signal Pin I/O

VIT-(NTC)

NTC Input Threshold

Falling to detect over temp, ratio to VV5

28%*VV5 30%*VV5 32%*VV5

VIT+(NTC)

NTC Input Threshold

Rising to recover, hysteresis

0.1

VIT+(CSCAL)

CSCAL Comparator Threshold

Voltage

IDQAdj[5:0]=0x00h, (V50-VCSCAL), TA = 25

-1%

1.5

+1%

IDQAdj[5:0]=0x00h, (V50-VCSCAL)

-2%

1.5

+2%

ΔV

CSCAL

CSCAL Threshold

Programming Resolution

mV/Step

NCSCAL

CSCAL Threshold

Programming Steps

-31

+31

Steps

VDIS(V50)

V50 Discharge Detection

Threshold

(V50

– V

CSCAL)

0.4

VIT+(CSPA)

CSPA Input Threshold

Rising to detect PA drain over current

VHYS(CSPA)

CSPA input hysteresis

Falling to release

-20

DSW50 Gate Drivers

RPU(HSGU)

HSGU High-side Driver Pull-

up Output Resistance

Ω

RPD(HSGD)

HSGD High-side Driver Pull-

down Output Resistance

Ω

RPU(LSGU)

LSGU Low-side Driver Pull-up

Output Resistance

Ω

RPD(LSGD)

LSGD Low-side Driver Pull-

down Output Resistance

Ω

REGG Regulator System

VG/VGREF

GREF to VG Conversion Ratio

(ratio of the gate voltage to the

floating reference voltage)

(VG – VPGND) / (VGREF – VG) gain of REGG as VG

floating circuit. VG is referenced to PGND and

VGREF is referenced to VG.

-2

VG Feedback Voltage

Accuracy

-1%

+1%

VIT-(PG)

PG Detection Threshold

Ratio of (VG – VPGND) / (VGREF – VG)

89.5

VHYS(PG)

PG Detection Hysteresis

0.8

IOCP

REGG Over Current

Protection

VIT-(OVP)

VG Over Voltage Protection

Ratio of (VG – VPGND) / (VGREF – VG)

106.5

109.5

VIT+(UVP)

VG Under Voltage Protection

Ratio of (VG – VPGND) / (VGREF – VG)

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