參數(shù)資料
型號： LM78S40CN
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
中文描述： 1.5 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDIP16
封裝： PLASTIC, DIP-16
文件頁數(shù)： 3/10頁
文件大?。?/td> 289K
代理商： LM78S40CN
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
Ceramic DIP
Molded DIP
Operating Temperature Range
Extended (LM78S40J)
Industrial (LM78S40N)
Commercial (LM78S40CN)
Lead Temperature
Ceramic DIP (Soldering, 60 sec.)
Molded DIP (Soldering, 10 sec.)
Internal Power Dissipation (Note 2) (Note 3)
16L-Ceramic DIP
16L-Molded DIP
Input Voltage from V
IN
to GND
Input Voltage from V
+
(Op Amp)
65C to +175C
65C to +150C
55C to +125C
40C to +125C
0C to +70C
300C
265C
1.50W
1.04W
40V
to GND
Common Mode Input Range
(Comparator and Op Amp)
Differential Input Voltage
(Note 4)
Output Short Circuit
Duration (Op Amp)
Current from V
REF
Voltage from Switch
Collectors to GND
Voltage from Switch
Emitters to GND
Voltage from Switch
Collectors to Emitter
Voltage from Power Diode to GND
Reverse Power Diode Voltage
Current through Power Switch
Current through Power Diode
ESD Susceptibility
40V
0.3 to V+
±
30V
Continuous
10 mA
40V
40V
40V
40V
40V
1.5A
1.5A
(to be determined)
LM78S40
Electrical Characteristics
(Note 5)
T
A
= Operating temperature range, V
IN
= 5.0V, V
+
(Op Amp) = 5.0V, unless otherwise specified.
Symbol
Parameter
GENERAL CHARACTERISTICS
I
CC
Supply Current
V
IN
= 5.0V
(Op Amp Disconnected)
V
IN
= 40V
I
CC
Supply Current
V
IN
= 5.0V
(Op Amp Connected)
V
IN
= 40V
REFERENCE SECTION
V
REF
Reference Voltage
I
REF
= 1.0 mA
Conditions
Min
Typ
Max
Units
1.8
2.3
3.5
5.0
4.0
5.5
mA
mA
mA
mA
Extend 55C
<
T
A
<
+125C,
Comm 0
<
T
A
<
+70C,
Indus 40C
<
T
A
<
+85C
1.180
1.245
1.310
V
V
R LINE
Reference Voltage
Line Regulation
Reference Voltage
Load Regulation
V
IN
= 3.0V to V
IN
= 40V,
I
REF
= 1.0 mA, T
A
= 25C
I
REF
= 1.0 mA to I
REF
= 10 mA,
T
A
= 25C
0.04
0.2
mV/V
V
R LOAD
0.2
0.5
mV/mA
OSCILLATOR SECTION
I
CHG
Charging Current
I
CHG
Charging Current
I
DISCHG
Discharge Current
I
DISCHG
Discharge Current
V
OSC
Oscillator Voltage Swing
t
on
/t
off
Ratio of Charge/
Discharge Time
CURRENT LIMIT SECTION
V
CLS
Current Limit Sense
Voltage
OUTPUT SWITCH SECTION
V
SAT 1
Output Saturation Voltage 1
V
SAT 2
Output Saturation Voltage 2
V
IN
= 5.0V, T
A
= 25C
V
IN
= 40V, T
A
= 25C
V
IN
= 5.0V, T
A
= 25C
V
IN
= 40V, T
A
= 25C
V
IN
= 5.0V, T
A
= 25C
20
20
150
150
50
70
250
350
μA
μA
μA
μA
V
μs/μs
0.5
6.0
T
A
= 25C
250
350
mV
I
SW
= 1.0A (Figure 1)
I
SW
= 1.0A (Figure 2)
1.1
0.45
1.3
0.7
V
V
3
www.national.com
相關(guān)PDF資料
PDF描述
LM78S40N RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LM78S4 RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LM78S40 RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS
LM78 Microprocessor System Hardware Monitor
LM78CCVF Microprocessor System Hardware Monitor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM78S40CN 制造商:Texas Instruments 功能描述:IC SWITCHING REGULATOR
LM78S40CN/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Uni Switching Reg Subsystem RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM78S40CN/NOPB 制造商:Texas Instruments 功能描述:DC/DC Converter (DC-DC) / Switching Regu
LM78S40J 制造商:Rochester Electronics LLC 功能描述:- Bulk
LM78S40J/883 制造商:National Semiconductor Corporation 功能描述:Conv DC-DC Single Step Down 2.5V to 40V 16-Pin CDIP Rail 制造商:National Semiconductor 功能描述:Conv DC-DC Single Step Down 2.5V to 40V 16-Pin CDIP Rail
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*