LM723 datasheet(3/14 Pages) NSC

3 / 14 page

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

(Note 10)

Pulse Voltage from V

+ to V− (50 ms)

50V

Continuous Voltage from V

+ to V−

40V

Input-Output Voltage Differential

40V

Maximum Amplifier Input Voltage

(Either Input)

8.5V

Maximum Amplifier Input Voltage

(Differential)

Current from V

25 mA

Current from V

REF

15 mA

Internal Power Dissipation

Metal Can (Note 2)

800 mW

Cavity DIP (Note 2)

900 mW

Molded DIP (Note 2)

660 mW

Operating Temperature Range

LM723

−55˚C to +150˚C

LM723C

0˚C to +70˚C

Storage Temperature Range

Metal Can

−65˚C to +150˚C

Molded DIP

−55˚C to +150˚C

Lead Temperature (Soldering, 4 sec. max.)

Hermetic Package

300˚C

Plastic Package

260˚C

ESD Tolerance

1200V

(Human body model, 1.5 k

Ω in series with 100 pF)

Electrical Characteristics (Note 3) (Note 10)

Parameter

Conditions

LM723

LM723C

Units

Min

Typ

Max

Min

Typ

Max

Line Regulation

IN = 12V to VIN = 15V

0.01

0.1

0.01

0.1

% V

OUT

−55˚C

≤ T

A ≤ +125˚C

0.3

% V

OUT

0˚C

≤ T

A ≤ +70˚C

0.3

% V

OUT

IN = 12V to VIN = 40V

0.02

0.2

0.1

0.5

% V

OUT

Load Regulation

L = 1mAtoIL = 50 mA

0.03

0.15

0.03

0.2

% V

OUT

−55˚C

≤ T

A ≤ +125˚C

0.6

% V

OUT

0˚C

≤ T

A ≤ +70˚C

0.6

% V

OUT

Ripple Rejection

f = 50 Hz to 10 kHz, C

REF = 074

f = 50 Hz to 10 kHz, C

REF = 5µF

Average Temperature Coeffic-

−55˚C

≤ T

A ≤ +125˚C

0.002 0.015

%/˚C

ient of Output Voltage (Note 8)

0˚C

≤ T

A ≤ +70˚C

0.003 0.015

%/˚C

Short Circuit Current Limit

SC = 10Ω,VOUT = 065

Reference Voltage

6.95 7.15

7.35 6.80 7.15

7.50

Output Noise Voltage

BW = 100 Hz to 10 kHz, C

REF = 0

µVrms

BW = 100 Hz to 10 kHz, C

REF = 5 µF

2.5

µVrms

Long Term Stability

0.05

%/1000 hrs

Standby Current Drain

L = 0, VIN = 30V

1.7

3.5

1.7

4.0

Input Voltage Range

9.5

Output Voltage Range

2.0

Input-Output Voltage Differential

3.0

Molded DIP

105

˚C/W

Cavity DIP

150

˚C/W

H10C Board Mount in Still Air

165

˚C/W

H10C Board Mount in 400 LF/Min Air Flow

˚C/W

Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee specific performance limits.

Note 2: See derating curves for maximum power rating above 25˚C.

Note 3: Unless otherwise specified, TA = 25˚C, VIN = V

+ = V

C = 12V, V

− = 0, V

OUT = 5V, IL = 1 mA, RSC = 0, C1 = 100 pF, CREF = 0 and divider impedance as

seen by error amplifier

≤ 10 kΩ connected as shown in Figure 1. Line and load regulation specifications are given for the condition of constant chip temperature. Tem-

perature drifts must be taken into account separately for high dissipation conditions.

Note 4: L1 is 40 turns of No. 20 enameled copper wire wound on Ferroxcube P36/22-3B7 pot core or equivalent with 0.009 in. air gap.

Note 5: Figures in parentheses may be used if R1/R2 divider is placed on opposite input of error amp.

Note 6: Replace R1/R2 in figures with divider shown in

Figure 13.

Note 7: V+ and VCC must be connected to a +3V or greater supply.

Note 8: For metal can applications where VZ is required, an external 6.2V zener diode should be connected in series with VOUT.

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