MCP6549 datasheet(10/28 Pages) MICROCHIP

10 / 28 page

MCP6546/7/8/9

DS21714C-page 10

 2003 Microchip Technology Inc.

Note: Unless otherwise indicated, VDD = +1.6V to +5.0V, VSS = GND, TA = +25°C, VIN+ = VDD/2, VIN– = GND,

RPU = 2.74 kΩ to VPU =VDD, and CL = 36 pF.

FIGURE 2-31:

Propagation Delay vs. Pull-

up Resistor.

FIGURE 2-32:

Supply Current (shoot

through current) vs. Chip Select (CS) Voltage at

VDD = 1.6V (MCP6548 only).

FIGURE 2-33:

Supply Current (charging

current) vs. Chip Select (CS) pulse at VDD = 1.6V

(MCP6548 only).

FIGURE 2-34:

Chip Select (CS) Step

Response (MCP6548 only).

FIGURE 2-35:

Supply Current (shoot

through current) vs. Chip Select (CS) Voltage at

VDD = 5.5V (MCP6548 only).

FIGURE 2-36:

Supply Current (charging

current) vs. Chip Select (CS) pulse at VDD = 5.5V

(MCP6548 only).

2030

405060

7080

100

Pull-up Resistor, RPU (k )

VIN– = 100 mV Overdrive

VCM =VDD/2

VIN+=VCM

tPHL @VDD =1.6V

tPHL @VDD =5.5V

tPLH @VDD =5.5V

tPLH @VDD =1.6V

1.E-11

1.E-10

1.E-09

1.E-08

1.E-07

1.E-06

1.E-05

1.E-04

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

Chip Select (CS) Voltage (V)

Comparator

Shuts Off Here

Comparator

Turns On Here

VDD = 1.6V

CS Hysteresis

CS High-to-Low

CS Low-to-High

100µ

10p

100p

10n

100n

1µ

10µ

234

789

Time (1 ms/div)

-9.8

-8.2

-6.6

-4.9

-3.3

-1.6

0.0

1.6

VOUT

IDD

Start-up IDD

VDD = 1.6V

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

01234

789

Time (ms)

VOUT

VDD = 5.5V

1. E-11

1. E-10

1. E-09

1. E-08

1. E-07

1. E-06

1. E-05

1. E-04

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

Chip Select (CS) Voltage (V)

Comparator

Shuts-Off

Comparator

Turns-On

VDD = 5.5V

100µ

1µ

10µ

100n

10n

100p

10p

CS High-to-Low

CS Low-to-High

CS Hysteresis

100

150

200

250

300

350

01234567

Time (1 ms/div)

-33.0

-27.5

-22.0

-16.5

-11.0

-5.5

0.0

5.5

VOUT

IDD

Start-up IDD

VDD = 5.5V

Charging output

capacitance

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