MCP6547T-ISLASHSL datasheet(3/32 Pages) MICROCHIP

Part #	MCP6547T-I/SL

Description	Open-Drain Output Sub-Microamp Comparators

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Manufacturer	MICROCHIP [Microchip Technology]

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3 / 32 page

DS21714E-page 3

MCP6546/6R/6U/7/8/9

AC CHARACTERISTICS

Open-Drain Output

Output Pull-Up Voltage

VPU

1.6

—

10

V

(Note 4)

High-Level Output Current

IOH

-100

—

nA

VDD = 1.6V to 5.5V, VPU = 10V (Note 4)

Low-Level Output Voltage

VOL

VSS

—VSS + 0.2

V

IOUT = 2 mA, VPU = VDD = 5V

Short-Circuit Current

ISC

—±1.5

—

mA

VPU = VDD = 1.6V (Note 4)

ISC

–30

—

mA

VPU = VDD = 5.5V (Note 4)

Output Pin Capacitance

COUT

—8

—

pF

Electrical Specifications: Unless otherwise indicated, VDD = +1.6V to +5.5V, VSS = GND, TA = 25°C, VIN+ = VDD/2,

Step = 200 mV, Overdrive = 100 mV, RPU =2.74 kΩ to VPU = VDD, and CL = 36 pF (Refer to Figure 1-2 and Figure 1-3).

Parameters

Sym

Min

Typ

Max

Units

Conditions

Fall Time

tF

—0.7

—

µs

(Note 1)

Propagation Delay (High-to-Low)

tPHL

—4.0

8.0

µs

Propagation Delay (Low-to-High)

tPLH

—3.0

8.0

µs

(Note 1)

Propagation Delay Skew

tPDS

—-1.0

—

µs

(Notes 1 and 2)

Maximum Toggle Frequency

fMAX

—

225

—

kHz

VDD = 1.6V

fMAX

—

165

—

kHz

VDD = 5.5V

Input Noise Voltage

Eni

—

200

—

µVP-P 10 Hz to 100 kHz

Note 1:

tR and tPLH depend on the load (RL and CL); these specifications are valid for the indicated load only.

2:

Propagation Delay Skew is defined as: tPDS = tPLH - tPHL.

DC CHARACTERISTICS (CONTINUED)

Electrical Specifications: Unless otherwise indicated, VDD = +1.6V to +5.5V, VSS = GND, TA = 25°C, VIN+ = VDD/2, VIN– = VSS,

RPU =2.74kΩ to VPU = VDD (Refer to Figure 1-3).

Parameters

Sym

Min

Typ

Max

Units

Conditions

Note 1:

The input offset voltage is the center of the input-referred trip points. The input hysteresis is the difference between the

input-referred trip points.

2:

VHYST at differential temperatures is estimated using: VHYST (TA) = VHYST + (TA -25°C) TC1 + (TA - 25°C)2TC2.

3:

Input bias current at temperature is not tested for the SC-70-5 package

4:

Do not short the output above VSS + 10V. Limit the output current to Absolute Maximum Rating of 30 mA. The minimum

VPU test limit was VDD before Dec. 2004 (week code 52).

MCP6548 CHIP SELECT (CS) CHARACTERISTICS

Electrical Specifications: Unless otherwise indicated, VDD = +1.6V to +5.5V, VSS = GND, TA = 25°C, VIN+ = VDD/2, VIN– = VSS,

RPU =2.74kΩ to VPU = VDD, and CL = 36 pF (Refer to Figures 1-1 and 1-3).

Parameters

Sym

Min

Typ

Max

Units

Conditions

CS Low Specifications

CS Logic Threshold, Low

VIL

VSS

—

0.2 VDD

V

CS Input Current, Low

ICSL

—5

—

pA

CS = VSS

CS High Specifications

CS Logic Threshold, High

VIH

0.8 VDD

—VDD

V

CS Input Current, High

ICSH

—1

—

pA

CS = VDD

CS Input High, VDD Current

IDD

—18

—

pA

CS = VDD

CS Input High, GND Current

ISS

—-20

—

pA

CS = VDD

Comparator Output Leakage

IO(LEAK)

—1

—

pA

VOUT = VSS+10V, CS = VDD

CS Dynamic Specifications

CS Low to Comparator Output Low

Turn-on Time

tON

—2

50

ms

CS = 0.2VDD to VOUT = VDD/2,

VIN– = VDD

CS High to Comparator Output

High Z Turn-off Time

tOFF

—10

—

µs

CS = 0.8VDD to VOUT = VDD/2,

VIN– = VDD

CS Hysteresis

VCS_HYST

—0.6

—

V

VDD = 5V

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