SG3525AP STMicroelectronics, SG3525AP Datasheet
SG3525AP
Specifications of SG3525AP
Available stocks
Related parts for SG3525AP
SG3525AP Summary of contents
Page 1
... The latch is reset with each clock pulse. The output stages are totem-pole designs capable of sourcing or sinking in excess of 200 mA. The SG3525A output stage features NOR logic, giving a LOW output for an OFF state. Type Plastic DIP SG2525A SG2525AN SG3525A SG3525AN SG2525A SG3525A 16(Narrow) SO16 SG2525AP SG3525AP 1/12 ...
Page 2
SG2525A-SG3525A ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage i V Collector Supply Voltage C I Oscillator Charging Current OSC I Output Current, Source or Sink o I Reference Output Current R I Current through Logic Inputs Analog ...
Page 3
ELECTRICAL CHARACTERISTICS ( and over operating temperature, unless otherwise specified) Symbol Parameter REFERENCE SECTION V Output Voltage REF V Line Regulation REF V Load Regulation REF Temp. Stability REF * Total Output Variation ...
Page 4
SG2525A-SG3525A ELECTRICAL CHARACTERISTICS (continued) Symbol Parameter PWM COMPARATOR Minimum Duty-cycle Maximum Duty-cycle Input Threshold * Input Bias Current SHUTDOWN SECTION Soft Start Current Soft Start Low Level Shutdown Threshold Shutdown Input Current V * Shutdown Delay OUTPUT DRIVERS (each output) ...
Page 5
TEST CIRCUIT SG2525A-SG3525A 5/12 ...
Page 6
SG2525A-SG3525A RECOMMENDED OPERATING CONDITIONS ( ) Input Voltage ( Collector Supply Voltage ( Sink/Source Load Current (steady state) Sink/Source Load Current (peak) Reference Load Current Oscillator Frequency Range Oscillator Timing Resistor Oscillator Timing Capacitor Dead Time ...
Page 7
Figure 5 : Error Amplifier. PRINCIPLES OF OPERATION SHUTDOWN OPTIONS (see Block Diagram) Since both the compensation and soft-start termi- nals (Pins 9 and 8) have current source pull-ups, either can readily accept a pull-down signal which only has to ...
Page 8
SG2525A-SG3525A Figure 6 : Oscillator Schematic. Figure 7 : Output Circuit (1/2 circuit shown). 8/12 ...
Page 9
Figure 8. For single-ended supplies, the driver outputs are grounded. The V terminal is switched to ground by C the totem-pole source transistors on alternate oscil- lator cycles. Figure 10. The low source impedance of the output drivers pro- vides ...
Page 10
SG2525A-SG3525A mm DIM. MIN. TYP. MAX. MIN. a1 0.51 0.020 B 0.77 1.65 0.030 b 0 8.5 e 2.54 e3 17.78 F 7.1 I 5.1 L 3.3 Z 1.27 10/12 inch MECHANICAL DATA TYP. MAX. ...
Page 11
DIM. MIN. TYP. MAX. MIN. A 1.75 a1 0.1 0.25 0.004 a2 1.6 b 0.35 0.46 0.014 b1 0.19 0.25 0.007 C 0.5 c1 45˚ (typ.) D (1) 9.8 10 0.386 E 5.8 6.2 0.228 e 1.27 e3 8.89 ...
Page 12
... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMi- croelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...