CA723 HARRIS | Alldatasheet
Document overview
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- PDF pages: 8
Technical content
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
- Direct Replacement for 723 and 723C Industry Types
Applications
- Series and Shunt Voltage Regulator
- Floating Regulator
- Switching Voltage Regulator
- High-Current Voltage Regulator
- Temperature Controller
Ordering Information
CA723E -55 oC to +125oC 14Lead Plastic DIP CA723T -55 oC to +125oC 10 Pin Metal Can CA723CE 0 oC to +70oC 14 Lead Plastic DIP CA723CT 0 oC to +70oC 10 Pin Metal Can Pinouts CA723 (PDIP) TOP VIEW CA723C (CAN) TOP VIEW VOLT REF AMP ERROR NC NON-INV INPUT VREF CURRENT SENSE CURRENT LIMIT INV INPUT VC VO VZ NC NC FREQ COMP INPUT V+ UNREG ERROR AMP VOLT REF TAB CURRENT LIMIT NON-INV INPUT INV INPUT CURRENT SENSE FREQ COMP VREF VO 7 VC 1 9 UNREG INPUT V-, (CASE INTERNALLY CONNECTED TO TERM 5) Functional Block Diagram VOLT REF AMP + ERROR AMP INVERTING INPUT NON-INVERTING INPUT TEMPERATURE- COMPENSATED ZENER UNREGULATED INPUT FREQUENCY COMPENSATION CURRENT LIMITER CURRENT SENSE CURRENT LIMIT SERIES PASS TRANSISTOR VZ OUTPUT VO REGULATED VC VREF - April 1994 CA723, CA723C Voltage Regulators Adjustable from 2V to 37V at Output Currents Up to 150mA Without External Pass Transistors File Number 788.3
Specifications CA723, CA723C Absolute Maximum Ratings Operating Conditions (Between V+ and V- Terminals) Pulse Voltage for 50ms Differential Input Voltage Current From Zener Diode Terminal (V Thermal Resistance θJA θJC Device Dissipation Ambient Temperature Range At a distance 1/16”± 1/32” (1.59mm± 0.79mm) from case for 10s max CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Unless Otherwise Specified. Divider impedance R1 R2 ÷ R 1 + R2 at noninverting input, Terminal 5 = 10kΩ . (Figure 20) PARAMETERS TEST CONDITION CA723 CA723C UNITSMIN TYP MAX MIN TYP MAX DC CHARACTERISTICS Quiescent Regulator Current, I Q IL = 0, VI = 30V - 2.3 3.5 - 2.3 4 mA Input Voltage Range, VI 9.5 - 40 9.5 - 40 V Output Voltage Range, VO 2 - 37 2 - 37 V Differential Input-Output Voltage, VI - VO 3 - 38 3 - 38 V Line Regulation (Note 1) V I = 12V to 40V - 0.02 0.2 - 0.1 0.5 % V O VI = 12V to 15V - 0.01 0.1 - 0.01 0.1 % V O VI = 12V to 15V, TA = -55oC to +125oC VI = 12V to 15V, TA = 0oC to +70oC ----- 0 . 3 % V O Load Regulation (Note 1) I L = 1mA to 50mA - 0.03 0.15 - 0.03 0.2 % V O IL = 1mA to 50mA, TA = -55oC to +125oC IL = 1mA to 50mA, TA = 0oC to +70oC ----- 0 . 6 % V O Output-Voltage Temperature Coeffi- cient,ΔVO TA = -55oC to +125oC - 0.002 0.015 - - - %/ oC TA = 0oC to +70oC ---- 0.003 0.015 %/ oC Ripple Rejection (Note 2) f = 50Hz to 10kHz - 74 - - 74 - dB f = 50Hz to 10kHz, C REF = 5µF -8 6- -8 6- d B Short Circuit Limiting Current, ILIM R SCP = 10Ω , VO = 0 - 65 - - 65 - mA Equivalent Noise RMS Output Voltage, VN (Note 2) BW = 100Hz to 10kHz, C REF = 0 - -20 - - 20 - µV BW = 100Hz to 10kHz, C REF = 5µF - 2.5 - - 2.5 - µV NOTES: 1. Line and load regulation specifications are given for condition of a constant chip temperature. For high dissipation condition, temperature drifts must be separately taken into account. 2. For CREF (See Figure 20)
FIGURE 12. CURRENT LIMITING CHARACTERISTICS FIGURE 13. QUIESCENT CURRENT vs INPUT VOLTAGE FIGURE 14. LOAD REGULATION vs DIFFERENTIAL INPUT- FIGURE 15. LINE REGULATION vs DIFFERENTIAL INPUT- FIGURE 16. LINE TRANSIENT RESPONSE FIGURE 17. CURRENT LIMITING CHARACTERISTIC vs JUNC-
0.3 CURRENT LIMITING SENSE VOLTAGE (V)
FIGURE 18. LOAD TRANSIENT RESPONSE FIGURE 19. OUTPUT IMPEDANCE vs FREQUENCY FIGURE 20. LOW VOLTAGE REGULATOR CIRCUIT FIGURE 21. HIGH VOLTAGE REGULATOR CIRCUIT