IMP183834A datasheet(3/8 Pages) IMP

Part #	IMP183834A

Description	Dual 5V and 3.3V uP Power Supply Supervisors w/Manual Reset

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Manufacturer	IMP [IMP, Inc]

Direct Link	http://www.ds-imp.com.cn/index.asp

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3 / 8 page

©

1999 IMP, Inc.

408-432-9100/www.impweb.com

3

IMP1

IMP183

83 4/A/D

4/A/D

Absolute Maximum Ratings

Electrical Characteristics

Voltage on VIN pins . . . . . . . . . . . . . . . . –0.5V to 7V

Voltage on 5VRESET . . . . . . . . . . . . . . . –0.5V to (+5VIN +0.5V)

(IMP1834, IMP1834D)

Voltage on 3.3VRESET . . . . . . . . . . . . . . –0.5V to (+3.3VIN +0.5V)

(IMP1834, IMP1834D)

Voltage on PBRST and reset outputs . . –0.5V to the greater of

5VIN +0.5V or 3.3VIN +0.5V

(IMP1834A)

Operating Temperature Range . . . . . . . –40

°C to 85°C

Storage Temperature . . . . . . . . . . . . . . . –55

°C to 125°C

Soldering Temperature . . . . . . . . . . . . . . 260

°C for 10 seconds

Voltages measured with respect to ground.

These are stress ratings only and functional operation is not implied.

Parameter

Symbol

Conditions

Min

Typ

Max

Units

5V Supply Voltage (5VIN)5VIN

1.2

5.5

V

3.3V Supply Voltage (3.3V)

3.3VIN

1.2

5.5

V

PBRST Input High Level

VIH

Both 3.3VIN and 5VIN ≥ 2.7V

2

VINMAX + 0.3V

V

PBRST Input High Level

VIH

Both 3.3VIN and 5VIN ≤ 2.7V

VINMAX – 0.4V

V

PBRST Input Low Level

VIL

– 0.3

0.5

V

Recommended DC operating condition over the operating temperature range of –40

°C to +85°C.

All voltages are referenced to ground.

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Output Voltage

VOH

VIN – 0.1V

V

Input Leakage

IIL

–1.0

+1.0

µA

Output Current

IOH

Output = 2.4V. Either 3.3VIN or

350

µA

5VIN ≥ 2.7V.

(IMP1834/1834D only)

Output Current

IOL

Output = 0.4V. Either 3.3VIN or

+10

mA

5VIN ≥ 2.7V.

(IMP1834/1834D only)

5V Operating Current

ICC

3.3VIN and 5VIN ≤ 5.5V,

16

30

µA

RESET outputs open.

3.3V Operating Current

ICC

3.3VIN and 5VIN ≤ 3.6V,

12

25

µA

RESET outputs open.

5V Trip Point

VINTP

5VTOL = GND

4.50

4.63

4.75

V

5V Trip Point

VINTP

5VTOL = 5VIN

4.25

4.38

4.49

V

3.3V Trip Point

VINTP

3.3VTOL = GND

2.80

2.88

2.97

V

3.3V Trip Point

VINTP

3.3VTOL = 3.3VIN

2.47

2.55

2.64

V

Output Capacitance

COUT

10

pF

PBRST Manual Reset

tPB

2ms

Minimum Low Time

PBRST Stable LOW to

tPDLY

2ms

Reset Active

Reset Active Time

tRST

200

350

500

ms

VCC Detect Noise Immunity

tRPD

2

µs

VCC Slew Rate

tF

VINTP (MAX) to VINTP (MIN)

300

µs

VCC Slew Rate

tR

VINTP (MIN) to VINTP (MAX)

0

ns

VCC Detect to RESET or RESET

tRPU

trise = 5µs

200

350

500

ms

Unless otherwise noted, VIN = 1.2V to 5.5V and specifications are over the operating temperature range of –40°C to +85°C.

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