|
Details, datasheet, quote on part number:PJ317CM
| |
Datasheet text preview:
PJ317 3-Terminal Adjustable Output Positive Voltage Regulator
T
· · · ·
he PJ317 is adjustable 3-terminal positive voltage regulator capable of supplying in excess of 1.5 A
external resistors to set the output voltage. Further,
it
employs internal current limiting, thermal shutdown and safe area compensation, making it essentially blow-out proof.
over an output voltage range of 1.25 V to 37 V. This voltage regulator is exceptionally easy to use and require only two
FEATURES
Output Current in Excess of 1.5 Ampere Output Adjustable between 1.25 V and 37 V Internal Thermal Overload Protection Internal Short-Circuit Current Limiting
TO-220 TO-220 / TO-263 / TO92/ TO-252 / SOT-223 Pin 1. Adjust 2. Vout 3. Vin Heatsink surface connected to Pin2 TO-263
Constant with Temperature · · · · Output Transistor Safe-Area Compensation Floating Operation for High Voltage Applications Standard 3-lead Transistor Packages Eliminates Stocking Many Fixed Voltages
TO-92
TO-252
SOT-223
ORDERING INFORMATION
Device Operating Temperature Package Design Load Current
1.5A 1.5A 0.1A 0.5A 1A 0.3A SOP-8 Pin 1. Vin 2. Vout 3. Vout 4. Adjust 5. Nc 6. Vout 7. Vout 8. Nc
PJ317CZ PJ317CM PJ317CT PJ317CP PJ317CW PJ317CS -20 to 85
TO-220 TO-263 TO-92 TO-252 SOT-223 SOP-8
CIRCUIT SCHEMATIC
STANDARD APPLICATION
* = Cin is required if regulator is located an appreciable distance from power supply filter. ** = Co is not needed for stability, however it does improve transient response. Vout = 1.25 V (1 + R2 / R1 ) + IAdj R2 Since IAdj is controlled to less than 100 µA, the error associated with this term is negligible in most applications
1-11
2002/10.rev.A
PJ317 3-Terminal Adjustable Output Positive Voltage Regulator
MAXIMUM RATINGS
RATING Input-Output Voltage Differential Power Dissipation Operating Junction Temperature Range Storage Temperature Range SYMBOL VI - V O PD TJ Tstg VALUE 40 Internally Limited -20 to + 85 -65 to +150 UNIT Vdc
PJ317 ELECTRICAL CHARACTERISTICS
(VI -VO = 5.0 V; IO = 0.5A for TO-220 packages; TJ =Tlow to Thigh [see Note 1]; Imax and Pmax per Note 2; unless otherwise specified.) CHARACTERISTIC Line Regulation (Note 3) TA = 25º C, 3.0 V VI -VO 40 V Load Regulation (Note 3) TA = 25, 10 mA IO Imax , VO 5.0 VO 5.0 Thermal Regulation (TA = 25) 20 ms Pulse Adjustment Pin Current Adjustment Pin Current Change , PD Pmax 10mA IL Imax, 2.5V VI - VO 40V Reference Voltage (Note 4) , PD Pmax 10mA Io Imax,, 3.0 V VI - VO 40 V Line Regulation (Note 3) , 3.0 V VI - VO 40V Current Limit (VIN-VOUT) 15V Package CZ,CM Package CW Package CP Package CS Package CT Temperature Stability (Tlow TJ Thigh) Minimum Load Current to Maintain Regulation , (VI - VO = 40 V) RMS Noise, % of VO TA =25, 10 HZ f 10 KHZ Long-Term Stability, TJ = Thigh (Note 6) TA =25 for Endpoint Measurements ,1000hrs Thermal Resistance Junction to Case FIGURE 1 2 SYMBOL REGline REGload MIN. ------1.20 -TYP. 0.01 5.0 0.1 0.03 50 0.2 1.25 0.02 1.5 1 0.5 0.3 0.1 1 3.5 0.003 0.3 5.0 MAX. 0.04 25 0.5 0.07 100 5.0 1.30 0.07 UNIT %/V mV %V %W µA µA V %V
3 1.2 3 1
IAdj I Adj V ref REGline
A
3 3 -3 --
TS ILmin N S RJC
------
-10 -1.0 --
% mA % %
/W
NOTES: (1) Tlow = -20 Thigh = + 85 (2) Imax = 1.5 A Pmax : TO-220=20W, TO-263=3W, TO-252=2W, SOP-8=0.625W, TO-92=0.625W, SOT23=0.625W (3) Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account separately. Pulse testing with low duty cycle is used. (4) Selected devices with tightened tolerance reference voltage available. (5) CAdj, when used, is connected between the adjustment pin and ground. (6) Since Long-Term Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average stability from lot to lot.
2-11
2002/10.rev.A
PJ317 3-Terminal Adjustable Output Positive Voltage Regulator
SCHEMATIC DIAGRAM
FIGURE 1- LINE REGULATION AND LINE TEST CIRCUIT
3-11
2002/10.rev.A
|
|
