MIC2753/2754

Micrel

MIC2753/2754

2

June 1999

Pin Configuration

Part

Identification

RST

MR

GND

VIN

UDx

1

3

45

2

HV

HV

MR

RST

VIN

UEx

1

3

45

2

GND

MIC2753

MIC2754

Voltage

Code

Pin Description

Pin No.

Pin No.

Pin Name

Pin Function

MIC2753

MIC2754

1

RST

Reset (Digital Output): Active-high output. Asserted when V

V

Deasserted no less than 140ms after V

2

1

/HV

High-Voltage Flag (Open-Drain Output): /HV is asserted (active low) when

the input voltage exceeds the V

It indicates

power supply overvoltage and is intended for connection to a protection

device such as a “crowbar” circuit.

3

3

VIN

Analog Input: Voltage monitor input and power supply input to the IC.

4

/RST

Reset (Digital Output): Active-low digital output. This output will be asserted

whenever V

V

V

4

2

GND

Ground: Ground return for all IC functions.

5

5

/MR

Manual Reset (Digital Input): Logic low initiates immediate, unconditional

reset. If V

high), the reset output(s) will be deasserted no less than 140ms later. /MR

may be driven by a CMOS or TTL logic signal or a mechanical switch.

(Switch debouncing is performed internally.) /MR has an internal pull-up to

VIN and may remain open if unused.

Ordering Information

Part Number

Mark

Lower Threshold

Monitored

Upper Threshold

Reset

Temperature

Package

Voltage

Voltage*

Voltage

Range

MIC2753-RBM5

UDR

2.63V

2.85V

±5%

3.08V

Active High

–40

°C to +85°C

SOT-23-5

MIC2753-SBM5

UDS

2.93V

3.3V

±10%

3.83V

Active High

–40

°C to +85°C

SOT-23-5

MIC2753-TBM5

UDT

3.08V

3.3V

±5%

3.53V

Active High

–40

°C to +85°C

SOT-23-5

MIC2753-MBM5

UDM

4.38V

5.0V

±10%

5.81V

Active High

–40

°C to +85°C

SOT-23-5

MIC2753-LBM5

UDL

4.63V

5.0V

±5%

5.38V

Active High

–40

°C to +85°C

SOT-23-5

MIC2754-RBM5

UER

2.63V

2.85V

±5%

3.08V

Active Low

–40

°C to +85°C

SOT-23-5

MIC2754-SBM5

UES

2.93V

3.3V

±10%

3.83V

Active Low

–40

°C to +85°C

SOT-23-5

MIC2754-TBM5

UET

3.08V

3.3V

±5%

3.53V

Active Low

–40

°C to +85°C

SOT-23-5

MIC2754-MBM5

UEM

4.38V

5.0V

±10%

5.81V

Active Low

–40

°C to +85°C

SOT-23-5

MIC2754-LBM5

UEL

4.63V

5.0V

±5%

5.38V

Active Low

–40

°C to +85°C

SOT-23-5

* Contact factory for voltages not listed.