參數(shù)資料
型號(hào): MIC2548-2BM
廠商: MICREL INC
元件分類(lèi): 外設(shè)及接口
英文描述: Replaced by PT6522 :
中文描述: 0.1 A BUF OR INV BASED PRPHL DRVR, PDSO8
封裝: SOP-8
文件頁(yè)數(shù): 3/12頁(yè)
文件大?。?/td> 470K
代理商: MIC2548-2BM
June 2000
3
MIC2544/2548
MIC2544/2548
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
IN
) ..................................................+6.0V
Output Voltage (V
OUT
) ...............................................+6.0V
Output Current (I
OUT
)............................... Internally Limited
Enable Input (V
EN
) .................................
0.3V to V
IN
+0.3V
Fault Flag Voltage (V
FLG
)...........................................+6.0V
Fault Flag Current (I
FLG
) ............................................50mA
Storage Temperature (T
S
) .......................
65
°
C to +150
°
C
Junction Temperature (T
J
) ....................... Internally Limited
Lead Temperature (soldering 5 sec.) ........................ 260
°
C
ESD Rating,
Note 3
......................................................2kV
Micrel
Electrical Characteristics
V
IN
= +5V; T
A
= 25
°
C,
bold
indicates
40
°
C to +85
°
C; unless noted
Symbol
Parameter
Condition
Min
Typ
Max
Units
Supply Current
switch off, OUT = open,
Note 4
0.75
5
μ
A
switch on, OUT = open,
Note 4
75
160
μ
A
V
EN
Enable Input Voltage
enable high,
Note 4
2.4
1.7
V
enable low,
Note 1
1.5
0.8
V
Enable Input Current
V
EN
= V
OH(min)
= 2.4V
V
EN
= V
OL(max)
= 0.8V
Note 6
0.01
1
μ
A
0.01
1
μ
A
Enable Input Capacitance
1
pF
R
DS(on)
Switch Resistance
I
OUT
= 500mA
I
OUT
= 100mA to 1A, V
OUT
= 1V to 4V
, Note 5
I
OUT
= 500mA to 1.5A, V
OUT
= 1V to 4V
, Note 5
switch off
80
120
m
Current Limit Factor
184
230
276
V
161
230
299
V
Output Leakage Current
1
10
μ
A
t
ON
t
R
t
OFF
t
F
Output Turn-On Delay
R
L
= 10
, C
L
= 1
μ
F,
Figures 1a, 1b
R
L
= 10
, C
L
= 1
μ
F,
Figures 1a, 1b
R
L
= 10
, C
L
= 1
μ
F,
Figures 1a, 1b
R
L
= 10
, C
L
= 1
μ
F,
Figures 1a, 1b
T
J
increasing
T
J
decreasing
V
IN
= 5V, I
L
= 10
μ
A
V
IN
= 3.3V, I
L
= 10
μ
A
V
FLG
= 5V
MIC2548 thermal shutdown latch
1
2
5
ms
Output Turn-On Rise Time
1
2
5
ms
Output Turnoff Delay
22
μ
s
Output Turnoff Fall Time
21
μ
s
Overtemperature Threshold
140
°
C
Shutdown
130
°
C
Error Flag Output Resistance
4
15
5
20
Error Flag Off Current
0.01
1
μ
A
EN Pulse Reset Width
5
μ
s
V
IN
to EN Set-Up
Current-Limit Response Time
MIC2548,
Note 6
0
μ
s
V
OUT
= 0V,
Note 6
V
OUT
= V
IN
/2 to FLG low
25
μ
s
Overcurrent Flag Response Time
5
μ
s
Note 1.
Note 2.
Note 3.
Note 4.
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.
Note 5.
Current limit threshold is determined by
I
R
LIMIT
SET
=
230V
, where R
SET
is in ohms.
Note 6.
Guaranteed by design but not production tested.
Operating Ratings
(Note 2)
Supply Voltage (V
IN
) ................................... +2.7V to +5.5V
Current Limit Set Range.................................. 0.1A to 1.5A
Ambient Temperature Range (T
A
) .............
40
°
C to +85
°
C
Package Thermal Resistance
SOP
JA
) ..........................................................160
°
C/W
MSOP
JA
) .......................................................206
°
C/W
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