LTC2902-2CGN View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC2902-2CGN

Programmable Quad Supply Monitor with Adjustable Reset Timer and Supply Tolerance

Linear Technology 

LTC2902

TEST CIRCUITS

RST

LTC2902-1 OR COMPX

V1

V2

V3

ISOURCE

1µA

V4

2902 F01

Figure 1. RST, COMPX VOH Test

LTC2902-1

V1

V2

RST

V3

OR COMPX

V4

2902 F02

ISINK

2.5mA,

100µA

Figure 2. RST, COMPX VOL Test

LTC2902-2 RST

V1

V2

V3

ISOURCE

200µA

V4

2902 F03

Figure 3. Active Pull-Up RST VOH Test

WU

W

TI I G DIAGRA

VX Monitor Timing

VX

VRTX

tUV

tRST

RST

COMPX

1.5V

2902 TD

TYPICAL PERFOR A CE CHARACTERISTICS

5V Threshold Voltage

vs Temperature

4.75

4.70

5%

4.65

4.60

7.5%

4.55

4.50

4.45

10%

4.40

4.35

12.5%

4.30

4.25

– 60 –40 – 20 0 20 40 60

TEMPERATURE (°C)

80 100

2902 G01

4

3.3V Threshold Voltage

vs Temperature

3.135

3.100

5%

3.065

3.030

2.995

7.5%

2.960

10%

2.925

2.890

2.855

12.5%

2.820

2.785

– 60 –40 – 20 0 20 40 60

TEMPERATURE (°C)

80 100

2902 G02

3V Threshold Voltage

vs Temperature

2.850

2.815

5%

2.780

2.745

7.5%

2.710

2.675

10%

2.640

2.605

2.570

12.5%

2.535

– 60 –40 – 20 0 20 40 60

TEMPERATURE (°C)

80 100

2902 G03

2902f

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