CA723C Datasheet PDF - Harris Corporation
| Part Number | CA723C | |
| Description | Voltage Regulators Adjustable from 2V to 37V at Output Currents Up to 150mA Without External Pass Transistors | |
| Manufacturers | Harris Corporation | |
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CA723, CA723CS E M I C O N D U C T O R
April 1994
Voltage Regulators Adjustable from 2V to 37V at Output
Currents Up to 150mA Without External Pass Transistors
Features
• Up to 150mA Output Current
• Positive and Negative Voltage Regulation
• Regulation in Excess of 10A with Suitable Pass
Transistors
• Input and Output Short-Circuit Protection
• Load and Line Regulation . . . . . . . . . . . . . . . . . . . 0.03%
• Direct Replacement for 723 and 723C Industry Types
• Adjustable Output Voltage . . . . . . . . . . . . . . . 2V to 37V
Applications
• Series and Shunt Voltage Regulator
• Floating Regulator
• Switching Voltage Regulator
• High-Current Voltage Regulator
• Temperature Controller
Ordering Information
PART
CA723E
CA723T
CA723CE
CA723CT
TEMPERATURE
-55oC to +125oC
-55oC to +125oC
0oC to +70oC
0oC to +70oC
PACKAGE
14Lead Plastic DIP
10 Pin Metal Can
14 Lead Plastic DIP
10 Pin Metal Can
Description
The CA723 and CA723C are silicon monolithic integrated cir-
cuits designed for service as voltage regulators at output volt-
ages ranging from 2V to 37V at currents up to 150mA.
Each type includes a temperature-compensated reference
amplifier, an error amplifier, a power series pass transistor, and
a current-limiting circuit. They also provide independently acces-
sible inputs for adjustable current limiting and remote shutdown
and, in addition, feature low standby current drain, low tempera-
ture drift, and high ripple rejection.
The CA723 and CA723C may be used with positive and nega-
tive power supplies in a wide variety of series, shunt, switching,
and floating regulator applications. They can provide regulation
at load currents greater than 150mA and in excess of 10A with
the use of suitable n-p-n or p-n-p external pass transistors.
The CA723 and CA723C are supplied in the 10 lead TO-100
metal can(T suffix), and the 14 lead dual-in-line plastic package
(E suffix), and are direct replacements for industry types LM723,
LM723C in packages with similar terminal arrangements.
Pinouts
CA723 (PDIP)
TOP VIEW
Functional Block Diagram
NC 1
CURRENT
LIMIT
2
CURRENT
SENSE
3
INV
INPUT
4
NON-INV
INPUT
5
-
ERROR
AMP
+
VREF 6
VOLT
REF
V- 7
14 NC
13 FREQ
COMP
12
V+ UNREG
INPUT
11 VC
10 VO
9 VZ
8 NC
CA723C (CAN)
TOP VIEW
CURRENT
SENSE
CURRENT LIMIT
TAB
1
10
9
FREQ
COMP
INV
INPUT
2
NON-INV
INPUT
3
+
ERROR
-AMP
VOLT
REF
V+
8 UNREG
INPUT
7 VC
VREF 4
5 6 VO
V-, (CASE INTERNALLY
CONNECTED TO TERM 5)
TEMPERATURE-
COMPENSATED
ZENER
VOLT
REF
AMP
V+ FREQUENCY
UNREGULATED COMPENSATION
INPUT
INVERTING
INPUT
VREF
NON-INVERTING
INPUT
-
ERROR
AMP
+
VC
SERIES PASS
TRANSISTOR
VO REGULATED
OUTPUT
VZ
CURRENT
CURRENT
V-
LIMIT
SENSE
CURRENT
LIMITER
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper I.C. Handling Procedures.
Copyright © Harris Corporation 1994
7-3
File Number 788.3
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CA723, CA723C
Typical Performance Curves (CA723) (Continued)
1.2 AMBIENT TEMPERATURE (TA) = +25oC
1.0
0.8
0.6
0.4
0.2
+70oC
0oC
0
0 10 20 40 60 80 100
OUTPUT CURRENT (mA)
FIGURE 12. CURRENT LIMITING CHARACTERISTICS
OUTPUT VOLTAGE (VO) = REFERENCE
VOLTAGE (VREF)
LOAD CURRENT (IL) = 0
5
4
AMBIENT TEMPERATURE (TA) = +25oC
3
2
1
0oC
+70oC
0
0 10 20 30 40
INPUT VOLTAGE (V)
FIGURE 13. QUIESCENT CURRENT vs INPUT VOLTAGE
Typical Performance Curves (CA723 and CA723C)
INPUT VOLTAGE (VI) = 12V
OUTPUT VOLTAGE (VO) = 5V
0.2
LOAD CURRENT (IL) = I TO 50mA
AMBIENT TEMPERATURE (TA) = +25oC
SHORT CIRCUIT PROTECTION
0.1 RESISTANCE (RSCP) = 0
OUTPUT VOLTAGE (VO) = 5V
LOAD CURRENT (IL) = 1mA
0.3 AMBIENT TEMPERATURE (TA) = +25oC
DIFFERENTIAL INPUT VOLTAGE (∆VT) = 3V
SHORT CIRCUIT PROTECTION RESISTANCE
0.2 (RSCP) = 0
0 0.1
-0.1
-0.2
-0.3
-5
5 15 25 35 45
DIFFERENTIAL INPUT - OUTPUT VOLTAGE (V)
FIGURE 14. LOAD REGULATION vs DIFFERENTIAL INPUT-
OUTPUT VOLTAGE
0
-0.1
-0.2
-5 5 15 25 35 45
DIFFERENTIAL INPUT - OUTPUT VOLTAGE (V)
FIGURE 15. LINE REGULATION vs DIFFERENTIAL INPUT-
OUTPUT VOLTAGE
INPUT VOLTAGE (VI) = 12V, OUTPUT VOLTAGE (VO) = 5V
LOAD CURRENT (IL) = 40mA
AMBIENT TEMPERATURE (TA) = +25oC
15 SHORT CIRCUIT PROTECTION RESISTANCE (RSCP) = 0
LOAD CURRENT (IL)
10
5
OUTPUT VOLTAGE (VO)
0
5
10
-5
5 15 25 35
TIME (µs)
45
FIGURE 16. LINE TRANSIENT RESPONSE
10
0
-10
-20
-30
0.8
CURRENT LIMITING
SENSE VOLTAGE
0.7
200
160
0.6
SHORT CIRCUIT LIMITING
CURRENT WITH RSCP = 5Ω
0.5
120
80
0.4 WITH RSCP = 10Ω
40
0.3 0
-50 0
50 100 150
JUNCTION TEMPERATURE (oC)
FIGURE 17. CURRENT LIMITING CHARACTERISTIC vs JUNC-
TION TEMPERATURE
7-7
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for CA723C electronic component. |
| Information | Total 8 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ CA723C.PDF Datasheet ] | |
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