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Union Semiconductor UM810MS

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Union Semiconductor UM810MS

Stock : 73673

Packaging Details : SOT-23-3

Quiescent Current (Iq) : 3uA

Voltage - Supply : 1V~10V

Number of Voltages Monitored : 1

Brand Name : UM810MS

Model Number : UM810MS

Delivery Time : 10-15工作日

Description : 240ms Active High 1V~10V 1 SOT-23-3 Supervisors RoHS

Operating Temperature : -40℃~+85℃@(Tj)

MOQ : 34

Reset Active Level : Active High

ChipType : Power Supervisor

Manual Reset : No

Reset Timeout : 240ms

output type : Push-pull

Watchdog : No

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Product Overview

The UM809/810 series are ultra-low current, cost-effective system supervisory circuits designed to monitor power supplies in digital systems. They provide a reset signal to the host processor when necessary, offering excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V, or other voltage-powered circuits. The reset output is driven active within 10s of the power supply falling through the reset voltage threshold and remains active for a minimum of 140ms after the system power supply has risen above the reset threshold. Reset threshold options are available for various supply voltages. The UM809 features an active-low reset output, while the UM810 has an active-high reset output. These ICs are optimized to reject fast transient glitches on the power supply line, and the reset output is guaranteed to be in the correct logic state for power supply VCC down to 1V. Each IC includes a voltage reference, comparator, resistors for threshold setting, a delay generator, an output driver, and a hysteresis circuit. The reset threshold and time delay are fixed with high accuracy internally, requiring no external adjustments. A low supply current of 3A (VCC=3V) makes the UM809/810 ideal for low-power applications. Both devices are available in 3-pin SOT323 or SOT23 packages.

Applications

CPU and Logic Circuit Reset
Power Fail Detectors
Computers
Embedded Systems
Battery-Powered Equipments
Intelligent Instruments

Brand

Union IC

Origin

N/A (Implied from URL, but not explicitly stated in text)

Package Types

SOT323, SOT23-3

Output Configurations

Push-Pull Low Active Reset (UM809), Push-Pull High Active Reset (UM810)

Operating Temperature

-40C to +85C

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage Range	VCC	TA=0C to +70C	1.0		10	V
Supply Voltage Range	VCC	TA=-40C to +85C	1.2		10	V
Supply Current	ICC	VCC<5.5V, UM8_L/M/J		3	5	A
Supply Current	ICC	VCC<3.6V, UM8_R/S/T/Z		3	5	A
Reset Threshold Tempco				30		ppm/C
VCC to Reset Delay		VCC=VTH to (VTH100mV)		10		s
Reset Active Timeout Period		TA=-40C to +85C	140	240	360	ms
Output Voltage Low (UM809)	VOL RESET	VCC=VTH min, ISINK=1.2mA, UM809R/S/T/Z			0.3	V
Output Voltage Low (UM809)	VOL RESET	VCC=VTH min, ISINK=3.2mA, UM809J/L/M			0.4	V
Output Voltage Low (UM809)	VOL RESET	VCC1.0V, ISINK=50A			0.3	V
Output Voltage High (UM809)	VOH RESET	VCC>VTH max, ISOURCE=500A, UM809R/S/T/Z		0.8*VCC		V
Output Voltage High (UM809)	VOH RESET	VCC>VTH max, ISOURCE=800A, UM809J/L/M		VCC1.5		V
Output Voltage Low (UM810)	VOL RESET	VCC=VTH max, ISINK=1.2mA, UM810R/S/T/Z			0.3	V
Output Voltage Low (UM810)	VOL RESET	VCC=VTH max, ISINK=3.2mA, UM810J/L/M			0.4	V
Output Voltage High (UM810)	VOH RESET	1.8V<VCC<VTH min, ISOURCE=150A		0.8*VCC		V

Reset Threshold (V)	Part Code Suffix	Typical Reset Threshold (V)
2.5V	R	2.63
2.8V	S	2.93
3.0V	T	3.08
3.3V	Z	2.32
5.0V	L/M/J	4.63/4.38/4.00

Parameter	Symbol	Value	Unit
Supply Voltage	VCC	-0.3 to +10	V
RESET, RESET Output Voltage		-0.3 to VCC+0.3	V
Input Current, VCC	ICC	20	mA
Output Current, RESET, RESET	IO	20	mA
Rate of Rise, VCC		100	V/s
Continuous Power Dissipation (SOT323)	PD	174	mW
Continuous Power Dissipation (SOT23-3)	PD	320	mW
Operating Junction Temperature	TJ	-40 to +85	C
Storage Temperature Range	TSTG	-65 to +150	C
Lead Temperature (Soldering, 10s)		300	C

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