UM812SE datasheet(5/14 Pages) UNIONSEMI

Part #	UM812SE

Description	Voltage Monitors with Manual Reset Input

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Manufacturer	UNIONSEMI [Union Semiconductor, Inc.]

Direct Link	http://www.union-ic.com

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5 / 14 page

________________________________________________________________________

http://www.union-ic.com Rev.01 Jan.2015

5/14

UM805/811/812

Electrical Characteristics (Continued)

(VCC = 5V for L/M/J versions, VCC = 3.3V for T/S versions, VCC = 3V for R version, and VCC =

2.5V for Z version, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)

(Note 2)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VOH

RESET Output

Voltage

ISOURCE=150μA, 1.8V<VCC<VTH(MIN)

UM812LE/ME/JE/TE/SE/RE/ZE

0.8×VCC

V

VOL

ISINK=1.2mA

UM812TE/SE/RE/ZE

0.3

ISINK=3.2mA

UM812LE/ME/JE

0.4

VOH

RESET

____________

Output

Voltage

ISOURCE=500μA, VCC>VTH(MAX)

UM811TE/SE/RE/ZE

0.8×VCC

V

ISOURCE=800μA, VCC>VTH(MAX)

UM811LE/ME/JE

VCC-1.5

VOL

ISINK=1.2mA, VCC=VTH(MIN)

UM805/811TE/SE/RE/ZE

0.3

ISINK=3.2mA, VCC=VTH(MIN)

UM805/811LE/ME/JE

0.4

ISINK=50μA, VCC>1.0V

0.3

Note 2: Production testing done at TA = +25°C; limits over temperature guaranteed by design only.

Note 3: RESET

_____________

output for UM805/811; RESET output for UM812.

Note 4: “Glitches” of 100ns or less typically will not generate a reset pulse.

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