MIC2544-1 MICREL [Micrel Semiconductor], MIC2544-1 Datasheet - Page 3

• Manufacturer Part Number: MIC2544-1
• Description: Programmable Current Limit High-Side Switch Preliminary Information
• Manufacturer: MICREL [Micrel Semiconductor]

Absolute Maximum Ratings
Supply Voltage (V
Output Voltage (V
Output Current (I
Enable Input (V
Fault Flag Voltage (V
Fault Flag Current (I
Storage Temperature (T
Junction Temperature (T
Lead Temperature (soldering 5 sec.) ........................ 260°C
ESD Rating, Note 3 ...................................................... 2kV
Electrical Characteristics
V
Symbol
V
R
t
t
t
t
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
Note 6.
June 2000
MIC2544/2548
ON
R
OFF
F
IN
EN
DS(on)
= +5V; T
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Off is ≤ 0.8V and on is ≥ 2.4V for the MIC2544-1 and MIC2548-1. Off is ≥ 2.4V and on is ≤ 0.8V for the MIC2544-2 and MIC2548-2. The
enable input has about 200mV of hysteresis.
Current limit threshold is determined by I
Guaranteed by design but not production tested.
A
= 25°C, bold indicates –40°C to +85°C; unless noted
Parameter
Supply Current
Enable Input Voltage
Enable Input Current
Enable Input Capacitance
Switch Resistance
Current Limit Factor
Output Leakage Current
Output Turn-On Delay
Output Turn-On Rise Time
Output Turnoff Delay
Output Turnoff Fall Time
Overtemperature Threshold
Shutdown
Error Flag Output Resistance
Error Flag Off Current
EN Pulse Reset Width
V
Current-Limit Response Time
Overcurrent Flag Response Time
IN
EN
OUT
to EN Set-Up
OUT
IN
) ................................. –0.3V to V
) .................................................. +6.0V
FLG
) ............................... Internally Limited
FLG
) ............................................... +6.0V
) ............................................ 50mA
S
) ........................................... +6.0V
J
) ....................... –65°C to +150°C
) ....................... Internally Limited
(Note 1)
LIMIT
= =
R
230V
SET
Condition
switch off, OUT = open, Note 4
switch on, OUT = open, Note 4
enable high, Note 4
enable low, Note 1
V
V
Note 6
I
I
I
switch off
R
R
R
R
T
T
V
V
V
MIC2548 thermal shutdown latch
MIC2548, Note 6
V
V
OUT
OUT
OUT
J
J
EN
EN
IN
IN
FLG
OUT
OUT
L
L
L
L
IN
, where R
increasing
decreasing
= 10Ω, C
= 10Ω, C
= 10Ω, C
= 10Ω, C
= 5V, I
= 3.3V, I
= V
= V
+0.3V
= 100mA to 1A, V
= 500mA to 1.5A, V
= 500mA
= 5V
= 0V, Note 6
= V
OH(min)
OL(max)
IN
L
/2 to FLG low
SET
= 10µA
L
L
L
L
L
3
= 1µF, Figures 1a, 1b
= 1µF, Figures 1a, 1b
= 1µF, Figures 1a, 1b
= 1µF, Figures 1a, 1b
= 10µA
is in ohms.
= 2.4V
Operating Ratings
Supply Voltage (V
Current Limit Set Range .................................. 0.1A to 1.5A
Ambient Temperature Range (T
Package Thermal Resistance
= 0.8V
SOP (θ
MSOP (θ
OUT
OUT
= 1V to 4V, Note 5
JA
= 1V to 4V, Note 5
JA
) .......................................................... 160°C/W
) ....................................................... 206°C/W
IN
) ................................... +2.7V to +5.5V
(Note 2)
Min
184
161
2.4
1
1
5
0
A
) ............. –40°C to +85°C
0.75
0.01
0.01
0.01
Typ
230
230
140
130
1.7
1.5
75
80
22
21
25
1
1
2
2
4
5
5
MIC2544/2548
Max
160
120
276
299
0.8
10
15
20
5
1
1
5
5
1
Micrel
Units
mΩ
ms
ms
µA
µA
µA
µA
µA
µA
pF
µs
µs
°C
°C
µs
µs
µs
µs
Ω
Ω
V
V
V
V