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SG3524F Datasheet(PDF) 2 Page - NXP Semiconductors |
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SG3524F Datasheet(HTML) 2 Page - NXP Semiconductors |
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2 / 5 page  Philips Semiconductors Product specification SG3524 SMPS control circuit 1994 Aug 31 2 ABSOLUTE MAXIMUM RATINGS SYMBOL PARAMETER RATING UNIT VIN Input voltage 40 V IOUT Output current (each output) 100 mA IREF Reference output current 50 mA Oscillator charging current 5 mA PD Power dissipation Package limitation 1000 mW Derate above 25 °C 8 mW/ °C TA Operating temperature range 0 to +70 °C TSTG Storage temperature range -65 to +150 °C DC ELECTRICAL CHARACTERISTICS TA=0°C to +70°C, VIN=20V, and f=20kHz, unless otherwise specified. SYMBOL PARAMETER TEST CONDITIONS LIMITS UNIT SYMBOL PARAMETER TEST CONDITIONS Min Typ Max UNIT Reference section VOUT Output voltage 4.6 5.0 5.4 V Line regulation VIN=8 to 40V 10 30 mV Load regulation IL=0 to 20mA 20 50 mV Ripple rejection f=120Hz, TA=25°C 66 dB ISC Short circuit current limit VREF=0, TA=25°C 100 mA Temperature stability Over operating temperature range 0.3 1 % Long-term stability TA=25°C 20 mV/kHz Oscillator section fMAX Maximum frequency CT=0.001 µF, RT=2kΩ 300 kHz Initial accuracy RT and CT constant 5 % Voltage stability VIN=8 to 40V, TA=25°C 1 % Temperature stability Over operating temperature range 2 % Output amplitude Pin 3, TA=25°C 3.5 VP Output pulse width CT=0.01 µF, TA=25°C 0.5 µs Error amplifier section VOS Input offset voltage VCM=2.5V 2 10 mV IBIAS Input bias current VCM=2.5V 2 10 µA Open-loop voltage gain 68 80 dB VCM Common-mode voltage TA=25°C 1.8 3.4 V CMRR Common-mode rejection ratio TA=25°C 70 dB BW Small-signal bandwidth AV=0dB, TA=25°C 3 MHz VOUT Output voltage TA=25°C 0.5 3.8 V Comparator section Duty cycle % each output “ON” 0 45 % Input threshold Zero duty cycle 1 V Input threshold Maximum duty cycle 3.5 V IBIAS Input bias current 1 µA Current limiting section Sense voltage Pin 9=2V with error amplifier set for maximum out, TA=25°C 180 200 220 mV Sense voltage T.C. 0.2 mV/ °C VCM Common-mode voltage -1 +1 V |
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