HT45F4830 datasheet(13/120 Pages) HOLTEK

13 / 120 page

Rev. 1.12

April 11, 2017

Rev. 1.12

April 11, 2017

HT45F4830

Digital Servo Flash MCU with Driver

HT45F4830

Digital Servo Flash MCU with Driver

LVR Electrical Characteristics

Ta=25°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

VLVR

Low Voltage Reset Voltage

—

LVR Enable

-5%

2.1

+5%

tLVR

Low Voltage Width to Reset

—

160

320

640

μs

LDO Electrical Characteristics

VIN=VOUT(Norminal)+1V, CLOAD=10μF+0.1μF, Ta= -40°C~85°C, unless otherwise specify

Symbol

Parameter

Test Conditions

Min.

Typ. Max.

Unit

VIN

Conditions

VIN

Input Voltage

—

3.5

8.4

VOUT

Output Voltage

—

Ta=25°C, ILOAD=1mA, VOUT=3.0V

-2%

3.0

—

Ta= -40°C ~ 85°C,

ILOAD=1mA, VOUT=3.0V

-5%

3.0

ΔVLOAD

Load Regulation(Note 1)

—

1mA ≤ ILOAD ≤ 70mA,

—

0.015 0.033 %/mA

VDROP

Dropout Voltage(Note 2)

—

ΔVOUT=2%, ILOAD=1mA

—

ΔVOUT=2%, ILOAD=10mA

—

100

—

VIN=VOUT + 1.5V,

ΔVOUT=2%, ILOAD=70mA

—

600

1000

IOUT

Output Current

—

VIN=VOUT + 1V, VOUT=3V,

ΔVOUT= -3%

—

VIN=VOUT + 2V, VOUT=3V,

ΔVOUT= -3%

—

Quiescent Current

12V No load

—

μA

ΔVLINE

Line Regulation

—

VOUT + 1V ≤ VIN ≤ 12V,

ILOAD=1mA

—

0.2

%/V

Temperature Coefficient

—

Ta= -40°C ~ 85°C, ILOAD=10mA

—

±1.5

±2

mV/°C

ISD

Shutdown Current

—

LDO disable

—

μA

ΔVOUT_

RIPPLE

Output Voltage Ripple

6V ILOAD=10mA

—

Ripple Rejection(Note 3)

—

VIN=10VDC + 2VP-P(AC),

ILOAD≤70mA, f=120Hz

—

ILIMIT

Current Limit

6V ΔVOUT= -10%

225

380

—

tSTART

LDO Startup Time

6V ILOAD=1mA, VOUT settle to ± 5%

—

Note:1.Loadregulationismeasuredataconstantjunctiontemperature,usingpulsetestingwithalowONtime

andisguaranteeduptothemaximumpowerdissipation.Powerdissipationisdeterminedbytheinput/

outputdifferentialvoltageandtheoutputcurrent.Guaranteedmaximumpowerdissipationwillnotbe

availableoverthefullinput/outputrange.Themaximumallowablepowerdissipationatanyambient

temperatureisPD=(TJ(MAX)-Ta)/θJA.

2.Dropoutvoltageisdefinedastheinputvoltageminustheoutputvoltagethatproducesa2%changeinthe

outputvoltagefromthevalueatappointedVIN.

3.RR=20×log(ΔVIN/ΔVOUT).

HT45F4830 Datasheet(PDF) 13 Page - Holtek Semiconductor Inc

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