BT75A25LS-RF datasheet(2/6 Pages) KODENSHI

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KK75Axx

ELECTRICAL CHARACTERISTICS

(TA = 25

oC, unless otherwise specified)

Characteristic

Symbol

Test Conditions

Min

Typ

Max

Unit

Supply Voltage

VCC

1.2

5.5

Detecting Voltage

VDET

2.16

2.35

2.50

2.65

2.74

3.23

3.82

4.12

4.61

4.90

2.20

2.40

2.55

2.70

2.80

3.30

3.90

4.20

4.70

5.00

2.24

2.45

2.60

2.75

2.86

3.37

3.98

4.28

4.79

5.10

Supply Current

ICC

VCC = 5.0V, No Load

µA

Low Output Voltage

VOL

VCC = VDET–0.2V, IOL = 0.1mA

0.1

0.3

High Output Voltage

VOH

VCC = VDET+0.2V, IOH = 0.1mA

VCC – 0.3V

Hysteresis Voltage

VHYS

2.0

Detective Voltage Temperature

Coefficient

DET

∆

-10

oC < T

A <70

± 0.02

BLOCK DIAGRAM

CMOS OUTPUT

OPEN DRAIN OUTPUT

OUT

VREF

VSS

VCC

OUT

VSS

VCC

VREF

FUNCTIONAL DESCRIPTION

The KK75AXX series is the set of voltage detectors equipped with a high stability voltage reference which is

connected to the negative input of a comparator - denoted as VREF in block diagram.

When the voltage drop to the positive input of the comparator (VB) is high than VREF, VOUT goes high.

If VCC is decreased so that VB falls to a value less than VREF, the comparator output inverts from high to low, VOUT goes low.

The device has hysteresis to prevent the circuit from oscillation when VB ≈ VREF.

If VCC falls below the minimum operating voltage, the output becomes undefined.

The detectable voltage is defined as:

()

REF

DET

−

The release voltage is defined as:

()

REF

DET

The hysteresis width is:

)

(

DET

)

DET

HYS

(

−

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