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LM78S40 bảng dữ liệu(PDF) 5 Page - Texas Instruments

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tên linh kiện LM78S40
Giải thích chi tiết về linh kiện  Universal Switching Regulator Subsystem
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LM78S40 bảng dữ liệu(HTML) 5 Page - Texas Instruments

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LM78S40
Electrical Characteristics (Note 5) (Continued)
T
A = Operating temperature range, VIN = 5.0V, V
+(Op Amp) = 5.0V, unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
OUTPUT SWITCH SECTION
h
FE
Output Transistor Current
Gain
I
C = 1.0A, VCE = 5.0V, TA = 25˚C
70
I
L
Output Leakage Current
V
O = 40V, TA = 25˚C
10
nA
POWER DIODE
V
FD
Forward Voltage Drop
I
D = 1.0A
1.25
1.5
V
I
DR
Diode Leakage Current
V
D = 40V, TA = 25˚C
10
nA
COMPARATOR
V
IO
Input Offset Voltage
V
CM = VREF
1.5
15
mV
I
IB
Input Bias Current
V
CM = VREF
35
200
nA
I
IO
Input Offset Current
V
CM = VREF
5.0
75
nA
V
CM
Common Mode Voltage
Range
T
A = 25˚C
0
V
IN–2
V
PSRR
Power Supply Rejection
Ratio
V
IN = 3.0V to 40V, TA = 25˚C
70
96
dB
OPERATIONAL AMPLIFIER
V
IO
Input Offset Voltage
V
CM = 2.5V
4.0
15
mV
I
IB
Input Bias Current
V
CM = 2.5V
30
200
nA
I
IO
Input Offset Current
V
CM = 2.5V
5.0
75
nA
A
VS
+
Voltage Gain
+
R
L = 2.0 kΩ to GND;
25
250
V/mV
V
O = 1.0V to 2.5V, TA = 25˚C
A
VS
Voltage Gain
R
L = 2.0 kΩ to V
+ (Op Amp)
25
250
V/mV
V
O = 1.0V to 2.5V, TA = 25˚C
V
CM
Common Mode Voltage
Range
T
A = 25˚C
0
V
CC −2
V
CMR
Common Mode Rejection
V
CM = 0V to 3.0V, TA = 25˚C
76
100
dB
PSRR
Power Supply Rejection
Ratio
V
+ (Op Amp) = 3.0V to 40V, T
A = 25˚C
76
100
dB
I
O
+
Output Source Current
T
A = 25˚C
75
150
mA
I
O
Output Sink Current
T
A = 25˚C
10
35
mA
SR
Slew Rate
T
A = 25˚C
0.6
V/µs
V
OL
Output Voltage LOW
I
L = −5.0 mA, TA = 25˚C
1.0
V
V
OH
Output Voltage High
I
L = 50 mA, TA = 25˚C
V + (Op
V
Amp) −
3V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when ordering the device
beyond its rated operating conditions.
Note 2: TJ Max = 150˚C for the Molded DIP, and 175˚C for the Ceramic DIP.
Note 3: Ratings apply to ambient temperature at 25˚C. Above this temperature, derate the 16L-Ceramic DIP at 10 mW/˚C, and the 16L-Molded DIP at 8.3 mW/˚C.
Note 4: For supply voltages less than 30V, the absolute maximum voltage is equal to the supply voltage.
Note 5: A military RETS specification is available on request. At the time of printing, the LM78S40 RETS specification complied with the Min and Max limits in this
table. The LM78S40J may also be procured as a Standard Military Drawing.
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