Zetex ZRB500A01, ZRB500A02, ZRB500A03, ZRB500F01, ZRB500F02 Datasheet

	PRECISION 5.0 VOLT MICROPOWER			ZRB500
	VOLTAGE REFERENCE
	ISSUE 1 - OCTOBER 1995
	DEVICE DESCRIPTION	FEATURES
	The ZRB500 uses a bandgap circuit design to	∙ Small outline SOT23,SO8 and TO92 style
			packages
	achieve a precision micropower voltage	∙
	reference of 5.0 volts. The device is available in		No stabilising capacitor required
	small outline surface mount packages, ideal for	∙
	applications where space saving is important,		Typical TC 15ppm/ °C
	as well as packages for through hole	∙	Typical slope resistance 0.33Ω
	requirements.
	The ZRB500 design provides a stable voltage	∙	± 3%, 2% and 1% tolerance
	without an external capacitor and is stable with	∙	Industrial temperature range
	capacitive loads. The ZRB500 is	∙
	recommended for operation between 50μA			μ
	and 15mA and so is ideally suited to low power	∙	Operating current 50 A to 15mA
			Transient response, stable in less than 10μs
	and battery powered applications.
	Excellent performance is maintained to a	∙	APPLICATIONS
	suggested absolute maximum of 25mA,	∙	Battery powered and portable equipment.
	however the rugged design and 20 volt
	processing allows the reference to withstand	∙	Metering and measurement systems.
	transient effects and currents up to 200mA.	∙
	Superior switching capability allowsthe device		Instrumentation.
	to reach stable operating conditions in only a	∙	Test equipment.
	few microseconds.
		∙	Data acquisition systems.
		∙	Precision power supplies.

SCHEMATIC DIAGRAM

V

R

Gnd

ZRB500

ABSOLUTE MAXIMUM RATING

	Reverse Current	25mA	Power Dissipation (Tamb=25°C)
			SOT23	330mW
	Forward Current	25mA
			E-Line, 3 pin (TO92)	500mW
	Operating Temperature	-40 to 85°C
			E-Line, 2 pin (TO92)	500mW
	Storage Temperature	-55 to 125°C
			SO8	625mW

ELECTRICAL CHARACTERISTICS

TEST CONDITIONS (Unless otherwise stated) Tamb=25°C

SYMBOL	PARAMETER	CONDITIONS		LIMITS				TOL.	UNITS
								%
			MIN		TYP		MAX
VR	Reverse Breakdown Voltage	IR=150μA	4.95		5.0		5.05	1	V
			4.90		5.0		5.10	2
			4.85		5.0		5.15	3
IMIN	Minimum Operating Current				30		50		μA
IR	Recommended Operating		0.05				15		mA
	Current
TC †	Average Reverse Breakdown				15		50		ppm/°C
	Voltage Temp. Co.	IR(min) to
		IR(max)
RS §	Slope Resistance				0.33		1.5		Ω
ZR	Reverse Dynamic Impedance	IR = 1mA			0.4		1		Ω
		f = 100Hz
		IAC= 0.1 IR
EN	Wideband Noise Voltage	IR = 150μA			100
		f = 10Hz to							μV(rms)
		10kHZ

				60
†	TC =	VR Changex 1000000	)	50
		VR x Temperature Change	A
			μ
			(	40
			t
	RS = VR Change(IR (min) to IR (max))		rren		T)=85°C
§			Cu	30
		IR (max) − IR (min)	rse	20
			e
			ev	10
			R
						T)=-40°C
				0
				0	2.0	4.0	6.0
					Reverse Voltage (V)
					Reverse Characteristics