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Details, datasheet, quote on part number:uUA723D
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Datasheet text preview:
µA723 PRECISION VOLTAGE REGULATORS
SLVS057D AUGUST 1972 REVISED JULY 1999
D D D D D
150-mA Load Current Without External Power Transistor Adjustable Current-Limiting Capability Input Voltages up to 40 V Output Adjustable From 2 V to 37 V Direct Replacement for Fairchild µA723C
D OR N PACKAGE (TOP VIEW)
description
The µA723 is a precision integrated-circuit voltage regulator, featuring high ripple rejection, excellent input and load regulation, excellent temperature stability, and low standby current. The circuit consists of a temperature-compensated reference-voltage amplifier, an error amplifier, a 150-mA output transistor, and an adjustable-output current limiter. The µA723 is designed for use in positive or negative power supplies as a series, shunt, switching, or floating regulator. For output currents exceeding 150 mA, additional pass elements can be connected as shown in Figures 4 and 5. The µA723C is characterized for operation from 0°C to 70°C.
AVAILABLE OPTIONS PACKAGED DEVICES TA 0°C to 70°C PLASTIC DIP (N) µA723CN SMALL OUTLINE (D) µA723CD CHIP FORM (Y) µA723Y
NC CURR LIM CURR SENS IN IN+ REF VCC
1 2 3 4 5 6 7
14 13 12 11 10 9 8
NC FREQ COMP VCC+ VC OUTPUT VZ NC
The D package is available taped and reeled. Add the suffix R to the device type (e.g., µA723CDR). Chip forms are tested at 25°C.
functional block diagram
VCC+ FREQ COMP
IN Ref Amp REF IN+
Current Source
VCC
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright © 1999, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
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· DALLAS, TEXAS 75265
Error Amp Current Limiter + CURR LIM CURR SENS
TemperatureCompensated Reference Diode
VC Series Pass Transistor
Regulated Output
VZ
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µA723 PRECISION VOLTAGE REGULATORS
SLVS057D AUGUST 1972 REVISED JULY 1999
schematic
VCC+ VC
500
25 k
1 k
1 k
15 k 15 k
OUTPUT
6.2 V 100 5 pF 30 k FREQ COMP 5 k 300 20 k 150 CURR LIM CURR SENS REF Resistor and capacitor values shown are nominal. IN+ VCC IN VZ
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Peak voltage from VCC+ to VCC (tw 50 ms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V Continuous voltage from VCC+ to VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V Input-to-output voltage differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V Differential input voltage to error amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5 V Voltage between noninverting input and VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V Current from VZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA Current from REF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 mA Package thermal impedance, JA (see Notes 1 and 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . 101°C/W Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or N package . . . . . . . . . . . . . . . . 260°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. Maximum power dissipation is a function of TJ(max), JA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) TA)/JA. Operating at the absolute maximum TJ of 150°C can impact reliability. 2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
µA723 PRECISION VOLTAGE REGULATORS
SLVS057D AUGUST 1972 REVISED JULY 1999
recommended operating conditions
MIN Input voltage, VI Output voltage, VO Input-to-output voltage differential, VC VO Output current, IO Operating free-air temperature range, TA µA723C 0 9.5 2 3 MAX 40 37 38 150 70 UNIT V V V mA °C
electrical characteristics at specified free-air temperature (see Notes 3 and 4)
PARAMETER TEST CONDITIONS CONDITIONS VI = 12 V to VI = 15 V VI = 12 V to VI = 40 V VI = 12 V to VI = 15 V f = 50 Hz to 10 kHz, f = 50 Hz to 10 kHz, Cref = 0 Cref = 5 µF TA 25°C 25°C 0°C to 70°C 25°C 25°C 25°C 0°C to 70°C 25°C VI = 30 V, RSC = 10 , BW = 100 Hz to 10 kHz, BW = 100 Hz to 10 kHz, IO = 0 VO = 0 Cref = 0 Cref = 5 µF 25°C 0°C to 70°C 25°C 25°C 25°C 6.8 7.15 2.3 0.003 65 20 2.5 74 86 0.3 2 6 7.5 4 0.015 µA723C MIN TYP 0.1 1 MAX 1 5 3 dB mV/V V mA %/°C mA µV mV/V UNIT
Input regulation
Ripple rejection rejection Output regulation regulation Reference voltage, Vref Standby current Temperature coefficient of output voltage Short-circuit output current Output noise voltage noise voltage
NOTES: 3. For all values in this table, the device is connected as shown in Figure 1 with the divider resistance as seen by the error amplifier 10 k. Unless otherwise specified, VI = VCC+ = VC = 12 V, VCC = 0, VO = 5 V, IO = 1 mA, RSC = 0, and Cref = 0. 4. Pulse-testing techniques must be used that will maintain the junction temperature as close to the ambient temperature as possible.
electrical characteristics, TA = 25°C (see Notes 3 and 4)
PARAMETER Input regulation regulation Ripple rejection rejection Output regulation Reference voltage, Vref Standby current Short-circuit output current Output noise voltage noise voltage VI = 30 V, RSC = 10 , BW = 100 Hz to 10 kHz, BW = 100 Hz to 10 kHz, IO = 0 VO = 0 Cref = 0 Cref = 5 µF TEST CONDITIONS CONDITIONS VI = 12 V to VI = 15 V VI = 12 V to VI = 40 V f = 50 Hz to 10 kHz, f = 50 Hz to 10 kHz, Cref = 0 Cref = 5 µF µA723Y MIN TYP 0.1 1 74 86 0.3 7.15 2.3 65 20 2.5 MAX UNIT mV/V dB mV/V V mA mA µV
NOTES: 3. For all values in this table, the device is connected as shown in Figure 1 with the divider resistance as seen by the error amplifier 10 k. Unless otherwise specified, VI = VCC+ = VC = 12 V, VCC = 0, VO = 5 V, IO = 1 mA, RSC = 0, and Cref = 0. 4. Pulse-testing techniques must be used that will maintain the junction temperature as close to the ambient temperature as possible.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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