HT45F4N datasheet(23/170 Pages) HOLTEK

23 / 170 page

Rev. 1.30

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Rev. 1.30

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HT45F4N/HT45FH4N

Power Bank Flash MCU

HT45F4N/HT45FH4N

Power Bank Flash MCU

LDO Regulator Electrical Characteristics

CLOAD=1μF, Ta = 25°C

Symbol

Parameter

Test Conditions

Min. Typ. Max.

Unit

VDD

Condition

VIN

Input Voltage

—

�

—

�8

VOUT

Output Voltage

—

Ta = �5°C�

ILOAD = 1�A� VIN = VOUT + 1V

Typ.-

�%

Typ.+

�%

—

-�0°C ≤ Ta < 85°C�

ILOAD = 1�A� VIN = VOUT + 1V

Typ.-

Typ.+

ΔVLOAD

Load Regulation (Note 1)

—

1�A ≤ ILOAD ≤ 30�A

VIN = VOUT + 1V

—

0.09 0.18 %/�A

VDROP

D�opout Voltage (Note �)

—

ΔVOUT = �%� ILOAD = 1�A

VIN = VOUT + �V

—

100

�V

Quies�ent Cu��ent

—

No load� VIN = 1�V

—

�

μA

ΔVLINE

Line Regulation

—

�V ≤ VIN ≤ �8V� ILOAD = 1�A

—

0.�

%/V

Temperature Coefficient

—

-�0°C ≤ Ta < 85°C�

VIN = VOUT + 1V� ILOAD = 10�A

—

±0.9

±�

�V/°C

Note:1.Loadregulationismeasuredataconstantjunctiontemperature,usingpulsetestingwithalowONtime

andisguaranteeduptothemaximumpowerdissipation.Powerdissipationisdeterminedbytheinput/

outputdifferentialvoltageandtheoutputcurrent.Guaranteedmaximumpowerdissipationwillnotbe

availableoverthefullinput/outputrange.Themaximumallowablepowerdissipationatanyambient

temperatureisPD=(TJ(MAX)-Ta)/θJA

2.Dropoutvoltageisdefinedastheinputvoltageminustheoutputvoltagethatproducesa2%changeinthe

outputvoltagefromthevalueatVIN=VOUT+2V.

Level Converter Electrical Characteristics

Ta = �5°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Condition

ISOURCE

Output Sou��e Cu��ent of

AX� BX� CX� DX

—

VCC=1�V� VOH=10.�V

-�0

-90

—

�A

ISINK

Output Sink Cu��ent of

AX� BX� CX� DX

—

VCC=1�V� VOL=1.�V

�0

—

�A

Power on Reset Electrical Characteristics

Ta = �5°C

Symbol

Parameter

Test Conditions

Min.

Typ. Max. Unit

VDD

Condition

VPOR

VDD Sta�t Voltage to Ensu�e Powe�-on

Reset

—

100

�V

RRPOR

VDD Rising Rate to Ensu�e Powe�-on

Reset

—

0.035

—

V/�s

tPOR

Mini�u� Ti�e fo� VDD Stays at VPOR

to Ensu�e Powe�-on Reset

—

�s

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