MCP6549 Microchip Technology, MCP6549 Datasheet - Page 10

• Manufacturer Part Number: MCP6549
• Description: (MCP6546 - MCP6549) Open-Drain Output Sub-Microamp Comparators
• Manufacturer: Microchip Technology

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MCP6546/7/8/9
Note: Unless otherwise indicated, V
R
FIGURE 2-31:
up Resistor.
FIGURE 2-32:
through current) vs. Chip Select (CS) Voltage at
V
FIGURE 2-33:
current) vs. Chip Select (CS) pulse at V
(MCP6548 only).
DS21714C-page 10
PU
DD
8
7
6
5
4
3
2
1
0
= 2.74 k to V
= 1.6V (MCP6548 only).
35
30
25
20
15
10
0
5
0
100µ
100n
100p
V
V
V
10µ
10n
10p
1µ
1n
IN
CM
IN
0
1.E-04
1.E-05
1.E-06
1.E-07
1.E-08
1.E-09
1.E-10
1.E-11
– = 100 mV Overdrive
+ = V
10
0.0
= V
1
V
DD
DD
CM
2
20
= 1.6V
/2
0.2
Turns On Here
3
Pull-up Resistor, R
Comparator
CS High-to-Low
30
Chip Select (CS) Voltage (V)
Time (1 ms/div)
PU
t
0.4
4
PHL
Start-up I
= V
CS
Propagation Delay vs. Pull-
Supply Current (shoot
5
Supply Current (charging
t
@ V
40
PLH
0.6
6
DD
DD
I
@ V
DD
V
50
OUT
= 1.6V
7
, and C
DD
DD
0.8
8
= 1.6V
60
PU
9
1.0
V
DD
t
t
70
L
(k )
DD
PLH
PHL
CS Hysteresis
10
= 1.6V
= 36 pF.
Shuts Off Here
CS Low-to-High
@ V
@ V
1.2
= +1.6V to +5.0V, V
Comparator
11
80
DD
DD
12
DD
1.4
1.6
0.0
-1.6
-3.3
-4.9
-6.6
-8.2
-9.8
= 5.5V
= 5.5V
90 100
= 1.6V
1.6
SS
= GND, T
FIGURE 2-34:
Response (MCP6548 only).
FIGURE 2-35:
through current) vs. Chip Select (CS) Voltage at
V
FIGURE 2-36:
current) vs. Chip Select (CS) pulse at V
(MCP6548 only).
DD
= 5.5V (MCP6548 only).
350
300
250
200
150
100
50
100µ
100p
-0.5
100n
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
10µ
10n
10p
A
1µ
1n
0
= +25°C, V
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
1. E-04
1. E-05
1. E-06
1. E-07
1. E-08
1. E-09
1. E-10
1. E-11
0
Comparator
CS Low-to-High
V
1
Turns-On
DD
1
= 5.5V
2
3
2
Time (1 ms/div)
Chip Select (CS) Voltage (V)
4
IN
V
DD
3
Start-up I
+ = V
Chip Select (CS) Step
Supply Current (shoot
5
Supply Current (charging
CS
= 5.5V
CS Hysteresis
V
6
2003 Microchip Technology Inc.
4
OUT
Time (ms)
V
I
DD
Charging output
OUT
7
DD
DD
CS
capacitance
CS High-to-Low
5
8
/2, V
9
V
6
DD
IN
10
= 5.5V
– = GND,
7
11
Comparator
Shuts-Off
12
8
5.5
0.0
-5.5
-11.0
-16.5
-22.0
-27.5
-33.0
DD
9
= 5.5V
10