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參數(shù)資料
| 型號： | LM1578 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 1037K |
| 代理商： | LM1578 |
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Total Supply Voltage
Collector Output to Ground
Emitter Output to Ground (Note 2)
Power Dissipation (Note 3)
Output Current
Storage Temperature
Lead Temperature
(soldering, 10 seconds)
Maximum Junction Temperature
50V
0.3V to +50V
1V to +50V
Internally limited
750 mA
65C to +150C
260C
150C
ESD Tolerance (Note 4)
2 kV
Operating Ratings
Ambient Temperature Range
LM1578A
LM2578A
LM3578A
Junction Temperature Range
LM1578A
LM2578A
LM3578A
55C
≤
T
A
≤
+125C
40C
≤
T
A
≤
+85C
0C
≤
T
A
≤
+70C
55C
≤
T
J
≤
+150C
40C
≤
T
J
≤
+125C
0C
≤
T
J
≤
+125C
Electrical Characteristics
These specifications apply for 2V
≤
V
≤
40V (2.2V
≤
V
≤
40V for T
≤
25C), timing capacitor C
= 3900 pF, and 25%
≤
duty cycle
≤
75%, unless otherwise specified. Values in standard typeface are for T
J
= 25C; values in
boldface type
apply for
operation over the specified operating junction temperature range.
LM1578A
Limit
(Note 6)
(Note 11)
LM2578A/
LM3578A
Limit
(Note 7)
Symbol
Parameter
Conditions
Typical
(Note 5)
Units
OSCILLATOR
f
OSC
Frequency
20
kHz
kHz (max)
kHz (min)
%/C
22.4
17.6
24
16
f
OSC
/
T
Frequency Drift with
Temperature
Amplitude
0.13
550
mV
p-p
REFERENCE/COMPARATOR
(Note 8)
V
R
Input Reference
Voltage
I
1
= I
2
= 0 mA and
I
1
= I
2
= 1 mA
±
1% (Note 9)
1.0
V
1.035/
1.050
0.965/
0.950
1.050/
1.070
V (max)
0.950/
0.930
V (min)
%/V
%/V (max)
μA
V
R
/
V
IN
Input Reference Volt-
age Line Regulation
Inverting Input
Current
Level Shift Accuracy
I
1
= I
2
= 0 mA and
I
1
= I
2
= 1 mA
±
1% (Note 9)
I
1
= I
2
= 0 mA, duty cycle = 25%
0.003
0.01/
0.02
0.01/
0.02
I
INV
0.5
Level Shift Current = 1 mA
1.0
%
% (max)
ppm/1000h
5/
8
10/
13
V
R
/
t
Input Reference
Voltage Long Term
Stability
100
OUTPUT
V
C
(sat)
Collector Saturation
Voltage
Emitter Saturation
Voltage
Collector Leakage
Current
Collector-Emitter
Sustaining Voltage
I
C
= 750 mA pulsed, Emitter
grounded
I
O
= 80 mA pulsed,
V
IN
= V
C
= 40V
V
IN
= V
CE
= 40V, Emitter
grounded, Output OFF
I
SUST
= 0.2A (pulsed), V
IN
= 0
0.7
V
V (max)
V
V (max)
μA
μA (max)
V
V (min)
0.85/
1.2
0.90/
1.2
V
E
(sat)
1.4
1.6/
2.1
1.7/
2.0
I
CES
0.1
50/
100
200/
250
BV
CEO(SUS)
60
50
50
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM1578A | CAP 100UF 50V ELECT TG SMD |
| LM158AFK | DUAL OPERATIONAL AMPLIFIERS |
| LM158APT | OP-AMP|DUAL|BIPOLAR|TSSOP|8PIN|PLASTIC |
| LM158AN | Voltage-Feedback Operational Amplifier |
| LM158AJ-QMLV | Voltage-Feedback Operational Amplifier |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM1578A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Switching Regulator |
| LM1578AH/883 | 制造商:Rochester Electronics LLC 功能描述: |
| LM1578H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
| LM158 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Low power dual operational amplifiers |
| LM158 MD8 | 制造商:Texas Instruments 功能描述:LINEAR IC-NON VMI |
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