SGSC34063 Elektronische Bauelemente Universal DC To DC Converter RoHS Compliant Product SOP-8 Description 0.19 0.25 0.40 0.90 45 o 0.375 REF 6.20 5.80 The SGSC34063 is a monolithic regulator subsystem, intended for use as DC to DC conv erter. This device contains a temperature put switch. It can be used for step down, compensated band gap reference, a duty-cycle control oscillator, driver and high current out step-up or inverting switching regulators as well as for series pass regulators. 0.25 3.80 4.00 1.27 Typ. 0.35 0.49 0.10 0.25 4.80 5.00 1.35 1.75 o 0 o 8 Dimensions in millimeters Features *Operation from 3.0V to 40V. *Short circuit current limiting. *Low standby current. *Output switch current of 1.5A without external transistors. *Frequency of operation from 100Hz to 100kHz. *Step-up, step-down or inverting switch regulators. 8 Date Code 7 6 5 3 4 34063 1 2 Pin Configuration & Representative Schematic Diagram rogrammed by pacitor CT to ground .Operation 500kHz nts up to This is the reference output .It provides charging current for capacitor CT http://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Any changing of specification will not be informed individual Page 1 of 5 SGSC34063 Elektronische Bauelemente Universal DC To DC Converter Absolute Maximum Ratings at Ta = 25 °C Parameter Symbol Value Unit Operating Junction Temperature Tj 150 °C Operating Ambient Temperature Range Ta 0 ~ 70 °C Storage Temperature Range Tstg -65 ~ 150 °C Supply Voltage Vcc 40 V Vi(comp) -0.3 ~ +40 V Switch Collector Voltage Vc(sw) 40 V Switch Emitter Voltage Ve(sw) 40 V Switch Collector to Emitter Voltage Vce(dr) 40 V Switch Current Isw 1.5 A Power Dissipation Pd 625 mW RθJA 160 °C / W Comparator Input Voltage Range Thermal Resistance Electrical Characteristics (0 °C≦TA≦70°C, Vcc=5V unless otherwise specified) Parameter Symbol Test Conditions Min. Typ. Max. Unit. Frequency fosc VPin5=0 V, CT=1.0 nF, Ta=25°C 24 42 48 kHz Charging Current Ichg Vcc = 5 to 40, Ta = 25°C 22 31 42 uA Idischg Vcc = 5 to 40, Ta = 25°C 140 190 260 uA Oscillator Discharging Current Discharge to Chart Current Ratio Current Limit Sense Voltage K Vsense Pin7 to Vcc, Ta = 25°C 5.2 6.1 7.5 Ichg = Idischg, Ta = 25°C 250 300 350 mV Output Switch Saturation Voltage 1 (note) Vce(sat)1 Isw = 1A, Vc(driver) = Vc(sw) 0.95 1.3 V Saturation Voltage 2 (note) Vce(sat)2 Isw = 1A, Vc(driver) = 50mA 0.45 0.7 V 100 uA DC Current Gain (note) Collect Off State Current (note) Gi(DC) Ic(off) Isw = 1A, Vce = 5V, Ta = 25°C 50 Vce = 40V, Ta = 25°C 180 0.01 Comparator Vcc = 5V, Ta = 25°C Threshold Voltage Threshold Voltage Line Regulation Input Bias Current Vth Vth Ibias 34063A 1.241 1.25 1.259 V 34063B 1.237 1.25 1.262 V 34063C 1.225 1.25 1.275 V Vcc = 3 ~ 40V 2 5 mV Vi = 0V 50 400 nA Vcc = 5 ~ 40V, Ct = 0.001, Pin7 to Vcc, Vc > Vth, Pin2 = GND 2.7 4 mA Total Device Supply Current Icc Note : Output switch tests are performed under pulsed conditions to minimize power dissipation. ht tp://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Any changing of specification will not be informed individual Page 2 of 5 SGSC34063 Elektronische Bauelemente Universal DC To DC Converter Characteristics Curve (UVLO) ht tp://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Any changing of specification will not be informed individual Page 3 of 5 SGSC34063 Elektronische Bauelemente Universal DC To DC Converter Application Circuit (1) Step-Up Converter Test Line Regulation Load Regulation Output Ripple Efficiency Output Ripple With Optional Filter Conditions Vin = 8V to 16V, Io = 175mA Vin = 12V, Io = 75mA to 175mA Vin = 12V,Io = 175Ma Vin = 12V, Io = 175mA Vin = 12V, Io = 175mA 30mV = ± 0.05% 10mV = ± 0.017% 400mVp-p 87.7% 40mVp-p Results External Current Boost Connections for Ic Peak Greater than 1.5A External NPN Switch NOTE External NPN Saturated Switch (NOTE) If the switch is driven into hard saturation (non-Darlington configuration) at low switch currents ( 300mA) and high driver currents ( 30mA) it may take up to 2.0 us to come out of saturation. This condition will shorten the off time at frequencies 30kHz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non-Darlington configuration is used, the following output drive condition is recommended. http://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A Any changing of specification will not be informed individual Page 4 of 5 SGSC34063 Elektronische Bauelemente Universal DC To DC Converter (2) Step-Down Converter Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple With Optional Filter Conditions Vin = 15V to 25V, Io = 50mA Vin = 25V, Io = 50mA to 500mA Vin = 25V,Io = 500mA Vin = 25V, RL = 0.1 Vin = 25V, Io = 500mA Vin = 25V, Io = 500mA 12mV = ± 0.12% 3mV = ± 0.03% 120mVp-p 1.1A 83.7% 40mVp-p Results External Current Boost Connections for Ic Peak Greater than 1.5A External NPN Switch ht tp://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A External PNP Saturated Switch Any changing of specification will not be informed individual Page 5of 5 SGSC34063 Elektronische Bauelemente Universal DC To DC Converter Voltage Inverting Converter Test Line Regulation Load Regulation Output Ripple Short Circuit Current Efficiency Output Ripple With Optional Filter Conditions Vin = 4.5V to 6.0V, Io = 100mA Vin = 5V, Io = 10mA to 100mA Vin = 5V,Io = 100mA Vin = 5V, RL = 0.1 Vin = 5V, Io = 100mA Vin = 5V, Io = 100mA Results 3mV = ± 0.12% 0.022V = ± 0.09% 500mVp-p 910mA 62.2% 70mVp-p External Current Boost Connections for Ic Peak Greater than 1.5A External NPN Switch ht tp://www.SeCoSGmbH.com/ 01-Jun-2002 Rev. A External PNP Saturated Switch Any changing of specification will not be informed individual Page 6 of 6