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PJ7900 Series 3-Terminal Negative Output Voltage Regulators
T
hese voltage regulators are intended as complements to the popular PJ7900 Series devices. These negative
Available in fixed output
voltage options from -5.0 to -
24 volts, these regulators employ current limiting, thermal shutdown, and safe-area compensation--making them remarkably rugged under most operating conditions. With adequate heatsinking they can deliver output currents in excess of 1 ampere.
regulators are available in the same seven-voltage options as the PJ7900 devices. In addition, one extra voltage option commonly employed in MECL systems is also available in the negative PJ7900 Series.
FEATURES • • • • • • Output Current up to 1 Ampere No External Components Required Internal Thermal Overload Protection Internal Short-Circuit Current Limiting Output Transistor Safe-Area Compensation Available in 4% Voltage Tolerance ORDERING INFORMATION
Operating Temperature (Ambient)
TO-220 TO-220F
Device PJ79xxCZ PJ79xxCI
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Package TO-220 TO-220F
Pin : 1. Ground 2. Input 3. Output (Heatsink surface connected to Pin 2.)
-20 ℃ to +85℃
CIRCUIT SCHEMATIC
1-9
2002/10.rev.A www.DataSheet4U www.DataSheet4U.com 4U.com
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PJ7900 Series 3-Terminal Negative Output Voltage Regulators
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
RATING Input Voltage *(-5V≧Vo≧-18V) **(-24V) Power Dissipation TO-220 TO-220 TO-220F Operating Ambient Temperature Operating Junction Temperature Storage Temperature SYMBOL Vin
Without heatsink
PJ7900 Series -35 -40 2 15 10 -20 to +85 0 to +125 -25 to +150
UNIT V
Pt *** With heatsink Topr Tj Tstg
℃/W
℃ ℃ ℃
Note: *1: PJ7905 to PJ7918 **2: PJ7924 ***3: Follow the derating curve. When Tj exceeds 150℃, the internal circuit cuts off the output.
• PJ7905 ELECTRICAL CHARACTERISTICS
(Vin=-10V, Iout=500mA, Cin=2μF, Cout=1μF; Tj=0℃ to 125℃, unless otherwise specified.)
CHARACTERISTIC SYMBOL TEST CIRCUIT CONDITION MIN. TYP. MAX UNIT
Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent current Change
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REGline 1 REGload Iq 1 2
Vo
1
Δ Iq
Vn RR Vdif Io-peak
2
1 3 1 1
Output Noise Voltage Ripple Rejection Ratio Min. I/O Voltage Difference Peak Output Current Output Voltage Tempoerature Coefficient
Tj=25℃ Vi=-7 to -20V, Io=5mA to 1A, PD<15W Tj=25℃ Vi=-7 to -25V Vi=-8 to -12V Tj=25℃ Io=5mA to 1.5A Io=250mA to 750mA Tj=25℃ VIN=-7 to -25V Io=5mA to 1.5A f=10Hz to 100KHz, Ta=25℃ Vi=-8 to -18V, Io=100mA, f=120Hz Io=1A, Tj=25℃ Tj=25℃ Io=5mA, Tj=0 to 125℃
-4.80 -4.75 -------62 ----
-5.0 -5.0 3 1 10 3 2 -40 74 1.1 2.1 -0.4
-5.20 -5.25 100 50 100 50 4 1.3 0.5 ------
V V mV mV mV mV mA mA
μV
dB V A mV/
ΔVo/Ta
℃
Note: The specified condition Tj=25℃ means that the test should be carried out with the test time so short (within 10mS), that the drift in characteristic value due to the rise in chip junction temperature can be ignored. STANDARD APPLICATION
A common ground is required between the input and the output voltages. The input voltage must remain typically 2.0 V more negative even during the high point on the input ripple voltage. XX = these two digits of the type number indicate voltage. * = Cin is required if regulator is located an appreciable distance from power supply filter. ** = Co improves stability and transient response.
2-9
2002/10.rev.A www.DataSheet4U www.DataSheet4U.com 4U.com
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PJ7900 Series 3-Terminal Negative Output Voltage Regulators
• PJ7906 ELECTRICAL CHARACTERISTICS
(Vin=-11V, Iout=500mA, Cin=2μF, Cout=1μF; Tj=0℃ to 125℃, unless otherwise specified.)
CHARACTERISTIC SYMBOL TEST CIRCUIT CONDITION MIN. TYP. MAX. UNIT
Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Ratio Min. I/O Voltage Difference Peak Output Current Output Voltage Tempoerature Coefficient
Vo REGline REGload Iq
1 1 1 2 2 1 3
Tj=25℃ Vi=-8 to -21V, lo=5mA to 1A, PD<15W Tj=25℃ Tj=25℃ Tj=25℃ Vi=-8 to -25V, Tj=25℃ lo=5mA to 1A, Tj=25℃ f=10Hz to 100KHz, Ta=25℃ Vi=-9 to -19V, Io=100mA, f=120Hz Io=1A, Tj=25℃ Vi=-8 to -25V Vi=-9 to -13V Io=5mA to 1.5A Io=250mA to 750mA
-5.75 -5.70 --------60 ----
-6.0 -6.0 4 1.5 10 3 2 --44 73 1.1 2.1 -0.5
-6.25 -6.30 120 60 120 60 4 1.3 0.5 ------
V V mV mV mV mV mA mA mA
ΔIq
Vn RR Vdif Io-peak
μV
dB V A mV/
1 1
Tj=25℃ Io=5mA, Tj=0 to 125℃
ΔVo/Ta
℃
Note: The specified condition Tj=25℃ means that the test should be carried out with the test time so short (within 10mS), that the drift in characteristic value due to the rise in chip junction temperature can be ignored.
• PJ7908 ELECTRICAL CHARACTERISTICS
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SYMBOL TEST CIRCUIT CONDITION MIN. TYP. MAX. UNIT
(Vin=-14V, Iout=500mA, Cin=2μF, Cout=1μF; Tj=0℃ to 125℃, unless otherwise specified.)
CHARACTERISTIC
Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Ripple Rejection Ratio Min. I.