HT45F39 datasheet(11/102 Pages) HOLTEK

11 / 102 page

Rev. 1.10

July 01, 2016

Rev. 1.10

July 01, 2016

HT45F39/HT45F391

Ultrasonic Distance Measurement 8-bit Flash MCU

HT45F39/HT45F391

Ultrasonic Distance Measurement 8-bit Flash MCU

A/D Characteristics

Ta=25°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VDD

Conditions

AVDD

Analog Operating Voltage

─

4.5

─

5.5

VAD

AD Input Voltage

─

AVDD

DNL

Differential Non-linearity

AVDD=VDD

tADC =1.25μs

-2

─

LSB

INL

Integral Non-linearity

AVDD=VDD

tADC =1.25μs

-4

─

LSB

IADC

Additional Power Consumption

if ADC is Enabled

No load (tADC =1.25μs )

Only ADC Enabled,

Other functions disabled

─

0.6

─

fAD

A/D Clock

4.5~5.5V

─

0.125

─

MHz

tADC

AD Conversion Time

8 bit ADC

─

tAD

tON2ST

ADC on to ADC Start

4.5V~5.5V

─

μs

Shunt Regulator Electrical Characteristics − HT45F39 Only

Ta=25°C

Symbol

Parameter

Condition

Min. Typ. Max. Unit

VUNREG

Supply Voltage

─

VREG1

Load Voltage – No Load in Room

Temperature

VUNREG=8V~16V, ISUPPLY=ISHUNT(Max)

@VUNREG=16V

MCU in SLEEP mode, no load (1)

-3%

+3%

VREG2

Load Voltage – Load and Supply

Voltage within Specification.

ISUPPLY=ISHUNT(Max) @ VUNREG=16V

Select RSER (1) as MCU in SLEEP

mode with no load condition

(1) VUNREG=8V, ILOAD=ILOAD(Max)

(2) VUNREG=16V, ILOAD=0

-5%

+5%

ILOAD

Load Current (2)

VUNREG =8V~16V,

RSER=(16-VDD1)/ISHUNT(Max)

─

ISHUNT(Max)

Maximum Shunt Current

VUNREG=16V

─

ISHUNT(Min)

Maximum Static Current

VUNREG=16V

─

∆VLINR

Line Regulation

VUNREG=8V to 16V,

RSER=(16V–VREG1)/ISHUNT(Max)

MCU in SLEEP mode, no load

─

0.3

%/V

∆VREG_RIPPLE Output Voltage Ripple

VUNREG=8V to 16V,

RSER=(16V–VREG1)/ISHUNT(Max)

MCU alternately consumes the

average current IMCU and ILOAD(Max).

The MCU varies its consumption

current once every 0.5ms (3)

─

100

∆VLOAD

Load Regulation

VUNREG=8V~16V/8V, 12V or 16V

RSER=(16V–VREG1)/ISHUNT(Max)

ILOAD = 0mA to ILOAD(Max),

CBYPASS=4.7μF, MCU in SLEEP mode

─

0.03 %/mA

HT45F39 Datasheet(PDF) 11 Page - Holtek Semiconductor Inc

HT45F39 Datasheet(HTML) 11 Page - Holtek Semiconductor Inc

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