MCP6546 查看數據表（PDF） - Microchip Technology

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MCP6546

Open-Drain Output Sub-Microamp Comparators

Microchip Technology 

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

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

Parameters

Sym

Min Typ Max Units

Conditions

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

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).

AC CHARACTERISTICS

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.

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 = 2.74 kΩ 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

Comparator Output Leakage

ISS

—

-20

—

pA CS = VDD

IO(LEAK)

—

1

—

pA VOUT = VSS+10V, CS = VDD

CS Dynamic Specifications

CS Low to Comparator Output Low

tON

—

2

50

ms CS = 0.2VDD to VOUT = VDD/2,

Turn-on Time

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

© 2006 Microchip Technology Inc.

DS21714E-page 3

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