Fairchild Semiconductor KA75250Z, KA75450Z, KA75420Z, KA75390Z, KA75310Z Datasheet

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KA75XXX

Voltage Detector

Features	Description
• Detecting Against Error Operations At The Power On/off.	The KA75250/KA75270/KA75290/KA75310/KA75330/
• Resetting Function For The Low Voltage Microprocessor.	KA75360/KA75390/KA75420/KA75450 prevents the error
• Checking Low Battery	of system from supply voltage below normal voltage level at
	the time the power on and instantaneous power off in
	systems.
	TO-92

1

SOT-89

1

1. Input 2. GND 3. Output

Internal Block Diagram

INPUT	1
1:TO-92
3:SOT-89		3	OUT
			3:TO-92
			1:SOT-89
		VREF
GND	2
2:TO-92
2:SOT-89

Rev. 1.0.3

©2002 Fairchild Semiconductor Corporation

KA75XXX

Absolute Maximum Rating (TA=25° C)

	Characteristic	Symbol	Value	Unit
	Supply Voltage	Vcc	0.3 ~ +15.0	V
	Detecting Voltage	VDET	2.5/2.7/2.9/3.1	V
			3.3/3.6/3.9/4.2/4.5
	Hysteresis Voltage	VHYS	50	mV
	Operating Temperature	TOPR	-25 ~ +85	° C
	Storage Temperature	TSTG	-50 ~ +150	° C
	Power Dissipation
	TO-92	PD	200	mW
	SOT-89		500
	Detecting Voltage Temperature Coefficient	∆ VDET/∆ T	RL = 200Ω , +0.01	%/° C

Electrical Characteristics (TA=25° C)

	Characteristic	Symbol	Test Conditions		Min	Typ	Max	Unit
			RL= 200Ω	KA75250	2.35	2.5	2.65
			VOL ≤ 0.4V KA75270		2.55	2.7	2.85
				KA75290	2.75	2.9	3.05
				KA75310	2.95	3.1	3.25	V
	Detecting Voltage	VDET		KA75330	3.15	3.3	3.45
				KA75360	3.45	3.6	3.75
				KA75390	3.75	3.9	4.05
				KA75420	4.05	4.2	4.35
				KA75450	4.35	4.5	4.65
	Low Output Voltage	VOL	RL = 200Ω		-	-	0.4	V
	Output Leakage Current	ILKG	VCC = 15V		-	-	0.1	uA
	Hysteresis Voltage	VHYS	RL = 200Ω		30	50	100	mV
	Detecting Voltage Temperature	∆ VDET/∆ T	RL = 200Ω		-	±0.01	-	%/° C
	Coefficient
	Circuit Current(At On Time)	ICCL	VCC = VDET(MIN) -0.05V		-	300	500	uA
	Circuit Current(At Off Time)	ICCH	VCC = 5.25V		-	30	50	uA
	Threshold Operating Voltage	VTH(OPR)	RL = 200Ω	, VOL ≤ 0.4V	-	0.8	1.0	V
	" L"± Transmission Delay Time	TOL	RL = 1.0kΩ	, CL= 100pF	0.6	10	-	us
	" H"± Transmission Delay Time	TOH	RL = 1.0kΩ , CL = 100pF		-	15	20	us
	Output Current (At On Time)	IOLI	VCC = VDET(MIN) -0.05V,		10	20	30	mA
			TA = 25° C
	Output Current (At On Time)	IOLII	VCC = VDET(MIN) - 0.05V		8	16	30	mA
			TA = -25 ~ +85° C

2

KA75XXX

Test Circuit 1.

A1

INPUT

OUTPUT

KA75XXX

M

GND

A2

V1

+	10u
	10V

Test Circuit 2.

		INPUT	RL
		KA75XXX	+
INPUT PULSE	0.1u	OUTPUT	10u	5V
	50V		50V
		GND

Test Circuit 3.

INPUT

RL

LED

VCC

KA75XXX

OUTPUT

GND

3