MIC2546 Micrel Semiconductor, MIC2546 Datasheet - Page 4

• Manufacturer Part Number: MIC2546
• Description: Dual Programmable Current Limit Switch Preliminary Information
• Manufacturer: Micrel Semiconductor

MIC2546/2547
Typical Characteristics
MIC2546/2547
280
240
200
160
120
100
2.5
2.0
1.5
1.0
0.5
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
80
40
90
80
70
60
50
0
0
-40 -20
-40 -20
2.5
2.5
Enable Threshold Voltage
On-State Supply Current
R
Output On-Resistance
L
3.0
3.0
V
= 44
vs. Supply Voltage
SUPPLY VOLTAGE (V)
vs. Supply Voltage
SUPPLY VOLTAGE (V)
TEMPERATURE ( C)
EN
TEMPERATURE ( C)
Output Fall Time
vs. Temperature
vs. Temperature
2.7V
5.0V
0
0
RISING
3.5
3.5
V
EN
20 40 60 80 100
20 40 60 80 100
2.7V
4.0
FALLING
4.0
3.3V
5.0V
3.3V
T
4.5
4.5
T
A
A
= 27 C
= 27 C
5.0
5.0
5.5
5.5
2000
1500
1000
120
100
500
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
2.0
1.8
1.6
1.4
1.2
1.0
80
60
40
0
0
100
-40 -20
-40 -20
-40 -20
Enable Threshold Voltage
Off-State Supply Current
R
Output On-Resistance
L
I
= 44
SHORT
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
vs. Temperature
vs. Temperature
vs. Temperature
V
Current Limit
0
0
0
EN
vs. R
R
3.3V
FALLING
20 40 60 80 100
20 40 60 80 100
20 40 60 80 100
4
SET
V
1000
EN
SET
( )
2.7V
3.3V
RISING
5.0V
I
SET
V
IN
5.0V
= 5V
2.7V
I
TH
5000
2000
1500
1000
0.20
0.18
0.16
0.14
0.12
0.08
0.06
0.04
0.02
280
240
200
160
120
500
0.1
80
40
7
6
5
4
3
2
1
0
0
0
0
-40 -20
2.5
2.5
0
On-State Supply Current
Off-State Supply Current
3.0
3.0
OUTPUT VOLTAGE (V)
vs. Supply Voltage
SUPPLY VOLTAGE (V)
vs. Supply Voltage
SUPPLY VOLTAGE (V)
vs. Output Voltage
1
TEMPERATURE ( C)
vs. Temperature
Output Current
0
3.5
3.5
Rise Time
2
20 40 60 80 100
R
R
R
SET
SET
SET
4.0
4.0
2.7V
3
3.3V
5.0V
= 150
= 2.3k
= 470
T
T
V
4.5
4.5
A
A
R
IN
4
L
= 27 C
= 27 C
= 5V
= 44
5.0
5.0
5
June 2000
5.5
5.5
6
Micrel