LM78S4 datasheet(3/10 Pages) NSC

tên linh kiện	LM78S4

Giải thích chi tiết về linh kiện	Universal Switching Regulator Subsystem

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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

−65˚C to +175˚C

Molded DIP

−65˚C to +150˚C

Operating Temperature Range

Extended (LM78S40J)

−55˚C to +125˚C

Industrial (LM78S40N)

−40˚C to +125˚C

Commercial (LM78S40CN)

0˚C to +70˚C

Lead Temperature

Ceramic DIP (Soldering, 60 sec.)

300˚C

Molded DIP (Soldering, 10 sec.)

265˚C

Internal Power Dissipation (Note 2) (Note 3)

16L-Ceramic DIP

1.50W

16L-Molded DIP

1.04W

Input Voltage from V

IN to GND

40V

Input Voltage from V

+ (Op Amp)

to GND

40V

Common Mode Input Range

(Comparator and Op Amp)

−0.3 to V+

Differential Input Voltage

(Note 4)

±30V

Output Short Circuit

Duration (Op Amp)

Continuous

Current from V

REF

10 mA

Voltage from Switch

Collectors to GND

40V

Voltage from Switch

Emitters to GND

40V

Voltage from Switch

Collectors to Emitter

40V

Voltage from Power Diode to GND

40V

Reverse Power Diode Voltage

40V

Current through Power Switch

1.5A

Current through Power Diode

1.5A

ESD Susceptibility

(to be determined)

LM78S40

Electrical Characteristics (Note 5)

T

A = Operating temperature range, VIN = 5.0V, V

+(Op Amp) = 5.0V, unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

GENERAL CHARACTERISTICS

I

CC

Supply Current

V

IN = 5.0V

1.8

3.5

mA

(Op Amp Disconnected)

V

IN = 40V

2.3

5.0

mA

I

CC

Supply Current

V

IN = 5.0V

4.0

mA

(Op Amp Connected)

V

IN = 40V

5.5

mA

REFERENCE SECTION

V

REF

Reference Voltage

I

REF = 1.0 mA

Extend −55˚C < T

A <

+125˚C,

Comm 0 < T

A < +70˚C,

1.180

1.245

1.310

V

Indus −40˚C < T

A < +85˚C

V

R LINE

Reference Voltage

V

IN = 3.0V to VIN = 40V,

0.04

0.2

mV/V

Line Regulation

I

REF = 1.0 mA, TA = 25˚C

V

R LOAD

Reference Voltage

I

REF = 1.0 mA to IREF = 10 mA,

0.2

0.5

mV/mA

Load Regulation

T

A = 25˚C

OSCILLATOR SECTION

I

CHG

Charging Current

V

IN = 5.0V, TA = 25˚C

20

50

µA

I

CHG

Charging Current

V

IN = 40V, TA = 25˚C

20

70

µA

I

DISCHG

Discharge Current

V

IN = 5.0V, TA = 25˚C

150

250

µA

I

DISCHG

Discharge Current

V

IN = 40V, TA = 25˚C

150

350

µA

V

OSC

Oscillator Voltage Swing

V

IN = 5.0V, TA = 25˚C

0.5

V

t

on/toff

Ratio of Charge/

6.0

µs/µs

Discharge Time

CURRENT LIMIT SECTION

V

CLS

Current Limit Sense

Voltage

T

A = 25˚C

250

350

mV

OUTPUT SWITCH SECTION

V

SAT 1

Output Saturation Voltage 1

I

SW = 1.0A (Figure 1)

1.1

1.3

V

SAT 2

Output Saturation Voltage 2

I

SW = 1.0A (Figure 2)

0.45

0.7

V

3

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Số phần tương tự - LM78S4

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Texas Instruments	LM78S40	343Kb / 14P	[Old version datasheet] Universal Switching Regulator Subsystem
	LM78S40CN/NOPB	343Kb / 14P	[Old version datasheet] Universal Switching Regulator Subsystem
	LM78S40N/NOPB	343Kb / 14P	[Old version datasheet] Universal Switching Regulator Subsystem
	LM78S40	322Kb / 14P	[Old version datasheet] Universal Switching Regulator Subsystem

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Mô tả tương tự - LM78S4

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ON Semiconductor	UA78S40	124Kb / 8P	UNIVERSAL SWITCHING REGULATOR SUBSYSTEM 1996 REV 1
Texas Instruments	LM78S40	343Kb / 14P	[Old version datasheet] Universal Switching Regulator Subsystem
Texas Instruments	LM78S40	322Kb / 14P	[Old version datasheet] Universal Switching Regulator Subsystem
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