TSC TS39100/1/2/3 handbook
Contents
1. TO 252 5L Mechanical Drawin TO 252 5L DIMENSION ae INCHE MAX MIN MAX TU B 9080 10 44 0357 0411 D 4127880 0 050BSC K3 f Het i 5340 5550 0210 0219 TS39100 1 2 3 10 10 2004 06 rev E2. Note 5 Dropout voltage is defined as the input to output differential at which the output voltage drops 1 below its nominal value measured at 1V differential Note 6 Ground pin current is the regulator quiescent current The total current drawn from the source is the sum of the ground pin current and output load current lin Ignd lout Note 7 Vref lt Vout lt Vin 1V 2 25V lt Vin lt 16V 10mA lt I lt 1 0A Note 8 Output voltage temperature coefficient is AVout worse cast Tj max Ti min where is Tj max 125 C and Note 9 For adjustable device and fiexed device with Vout gt 2 25V Block Diagram TS39100 OV luma TS39100 1 2 3 3 10 2004 06 rev E Block Diagram TS39101 amp TS39102 amp TS39103 ON luma 18v a Shut down Feedback network is fixed output versions only TS39101CSxx amp TS39103CP5xx Adjustable output version only TS39102CS amp TS39103CP5 TS39100 1 2 3 4 10 2004 06 rev E Pin Assignment Pin No Pin Configuration TS39100 TS39101 TS39102 TS39103 eee Enable input TTL COMS compatible Enable input Logic high is enable logic low or open is shutdown Unregulated input 26V maximum Input supply Ground Ground pin and TAB heatsink Ground l are internally connected Output Regulator output Fla Error Flag output Open collector j output Active low indicates an output xed Output vonage fault condition if no used leav
3. Reference Voltage Note 7 0 970 Vo 1 030 Vo V 120 Adjust Pin Bias Current po do 2o Reference Voltage Temp Coefficient Note 8 a ppm C 2o Coefficient Flag Output TS39101 Output Leakage Current Voustev 2 ua Output Low Voltage Note 9 Vinz0 9 Vout lo7250uA 400 mv Upper Threshold Voltage otvot 99 0 Lower Threshold Voltage oftvot Ol o3 o o x ysteress Et Enable Input TS39101 2 3 Input Logic Voltage towo v Hinon Enable Pin Input Current Ven 2 25V o o 75 UA nA TS39100 1 2 3 2 10 2004 06 rev E ISU Thermal Performance Unit Thermal Resistance Junction to Ambient 20 Note 1 Absolute Maximum Rating is limits beyond which damage to the device may occur For guaranteed specifications and test conditions see the Electrical Characteristics Note 2 The device is not guaranteed to operate outside its operating rating C W Note 3 Devices are ESD sensitive Handling precautions recommended Note 4 The maximum allowable power dissipation is a function of the maximum junction temperature Tj the junction to ambient thermal resistance 0ja and the ambient temperature Ta Exceeding the maximum allowable power dissipation will cause excessive die temperature and the regulator will go into thermal shutdown The effective value of ja can be reduced by using a heatsink Pd max T max Ta Oja
4. junction to ambient is the limiting factor in calculating the maximum power dissipation capability of the device Typically the power SOP 8 have a Ojc of 20 C W dramatically this is significantly lower than the standard SOP 8 which is typically 75 C W Oca is reduced because pin 5 8 can be soldered directly to a ground plane which significantly reduces the case to sink and sink to ambient thermal resistance Power Dissipation From under curves the minimum area of copper necessary for the par to operate safely can be determined The maximum allowable temperature rise must be calculated to determine operation along which curve rm _ om mb bm m bam nb puri puri o kd 0 25 0 4 015 1 1 25 power dissipation 0A TS39100 1 2 3 8 10 2004 06 rev E SOT 223 Mechanical Drawin SOT 223 DIMENSION TB 2900 s100 0114 0122 o osos 0685 002s 0025 IT oaso 0385 0010 0018 TO 252 Mechanical Drawin TO 252 DIMENSION B 0280 10400 0 364 0408 Ko 2880 2870 0101 0105 i f sso 5880 0210 0219 TS39100 1 2 3 9 10 2004 06 rev E SOP 8 Mechanical Drawin SOP 8 DIMENSION B aso 400 o1s0 0187 To oss os 0014 oo e oso 125 0016 0048 Col ama by el oo oz oo 0000 wter ee e ss 620 0220 0o24 Pe 025 oso ooo ooe
5. O O TS39100CP05 O O TS39100 1 2 3 1 0A Ultra Low Dropout Positive Voltage Regulator SOT 223 TO 252 TO 252 5L SOP 8 Low Dropout Voltage 0 4V typ 4 Enable Input Control Adjustable Output Error Flag Detection General Description The TS39100 1 2 3 series are 1A ultra low dropout linear voltage regulators that provide low voltage high current output from an extremely small package These regulator offers extremely low dropout typically 400mV at 1A and very low ground current typically 12mA at 1A The TS39100 1 2 3 series are fully protected against over current faults reversed input polarity reversed lead insertion over temperature operation positive and negative transient voltage spikes logic level enable control and error flag which signals whenever the output falls out of regulation On the TS39101 2 3 the enable pin may be tied to Vin if it is not required for enable control This series are offered in 3 pin SOT 223 TS39100 8 pin SOP TS39101 2 and 5 pin TO 252 TS39103 package Features Ordering Information Dropout voltage typically 0 4V lo 1 0A Operating Temp Package Output current up to 1 0A Junction Low ground current TS39100CWxx 01 223 Output voltage trimmed before assembly TO39100CPxx TO 252 Extremely fast transient response 5 l TS39101CSxx 40 125 C Reversed leakage protection SOP 8 l TS39102CS a TS39103CP5xx TO 252 5L_ Error flag signals output out of regulation POSSE ny IOA E Note Where xx de
6. e open Adjustment input Feedback input Feed Back ba a l pi Connect to resistive voltage divider adjustable voltage network Typical Application Circuit T539100 1539101 amp 1539103 Vin 3 3v O Enable Shutdown 1539102 amp 1539103 1539101 amp 1539103 Vin Vin 3 30 3 3v E Enable Enable Shutdown Shutdown TS39100 1 2 3 5 10 2004 06 rev E Application Information ISU Application Information The TS39100 1 2 3 series are high performance with low dropout voltage regulator suitable for moderate to high current and voltage regulator application Its 630mV dropout voltage at full load and over temperature makes it especially valuable in battery power systems and as high efficiency noise filters in Unlike normal NPN transistor design where the base to emitter voltage post regulator applications drop and collector to emitter saturation voltage limit the minimum dropout voltage dropout performance of the PNP output of these devices is limited only by low Vce saturation voltage The TS39100 1 2 3 series is fully protected from damage due to fault conditions Linear current limiting is provided Output current during overload conditions is constant Thermal shutdown the device when the die temperature exceeds the maximum safe operating temperature Transient protection allows device survival even when the input voltage spikes above and below nominal The output structure of these reg
7. eramic chip cpapcitors can be used for bypassing Larger values will help to improve ripple rejection by bypassing the input to the regulator further improving the integrity of the output voltage Minimum Load Current The TS39100 1 2 3 series is specified between finite loads If the output current is too small leakage currents dominate and the output voltage rises A 10mA minimum load current is necessary for proper regulation Adjustable Regulator Design The adjustable regulator versions TS39102 is allow to programming the output voltage anywhere between 1 25 and the 16V maximum operating rating of the family Two resistors are used Resistors can be quite large up to 1MQ because of the very high input impedance and low bias current of the sense comparator the resistor values are calculated by R1 R2 Vout 1 24 1 Vin 2 50 O Enable Shutdown Where Vout is the desired output voltage Above application circuit shows component definition Applications with widely varying load currents may scale the resistors to draw the minimum load current required for proper operation 2004 06 rev E Application Information continues ISU Error Flag TS39101 versions feature an Error Flag which looks at the output voltage and signals an error condition when this voltage drops 5 below its expected value The error flag is an open collector output that pulls low under fault conditions It may sink 10mA Low
8. notes voltage option available are 5 0V 3 3V 2 5V 1 8V and 1 5V Leave blank for adjustable version only TS39103 Contact to factory for addition output voltage option Internal current limit TEREE Thermal shutdown protection Applications Battery power equipment High efficiency linear power supplies LDO linear regulator for PC add in cards High efficiency post regulator for switching supply PowerPC power supplies Low voltage microcontrollers and digital logic Multimedia and PC processor supplies SMPS post regulator Absolute Maximum Rating Note 1 v v c LeadSoldering Temperature 260 o s 5 0 te TS39100 1 2 3 1 10 2004 06 rev E Operating Rating Note 2 Vin operate V Ven operate v Power Dissipation Note 4 Po Internally Limited W c Electrical Characteristics Vin Vout 1V Venable 2 25V Tj 25 C unless otherwise specified Output Voltage lL 10mA 0 990 Vo Vout 1 010 Vo Output Voltage 10mA lt lt 1 0A 0 980 Vo 1 020 Vo V Vo 1V lt Vin lt 8V Line Regulation lL 10mA Vo 1V lt Vin lt 16V Yo Load Regulation Vin Voutt 1V 10mAsl STA Yo Output Voltage Temp Coefficient YY po o o Dropout Voltage Note 5 AVout 1 IL 100mA _ 500mA l_ 750mA _ 1 0A O Quiescent Current Note 6 Vin Vout 1V l1 100mA lI 500mA l 750mA l 1 0A Current Limited Vout 0 Vin Vout 1V A Reference TS39102 Reference Voltage YY 0 980 Vo 1 24 1 020 Vo
9. out voltage this device does not saturate into dropout as readily as similar NPN base designs When converting from 3 3V to 2 5V or 2 5V to 1 8V the NPN based regulators are already operating in dropout with typical dropout requirements of 1 2V or To convert down to 2 5V or 1 8V without operating in dropout NPN based regulators require an greater input voltage of 3 7V at the very least The TS39100 performance with an input as low as 3 0V or 2 5V regulator will provide excellent respectively This gives the PNP based regulators a distinct advantage over older NPN based linear regulators Power SOP 8 Thermal Characteristics TS39101 2 series performance is its power SOP 8 package featuring half the thermal resistance of a standard SOP 8 package Lower thermal resistance means more output current or higher input voltage for a given package size Lower thermal resistance is achieved by connect the four ground pins with the die attached pad to create a single piece electrical and thermal conductor This concept have been used by MOSFET production for years proving very reliable and cost effective for the user As under ca ground plane nani ng heat sink area Thermal Resistance 2004 06 rev E ISU Application Information continues Thermal resistance consists of two main elements jc junction to case and Oca case to ambient Using the power SOP 8 reduces Oca the total thermal resistance Oja
10. output voltage signifies a number of possible problems including an over current fault the device is in current limit or low input voltage The flag output is inoperative during over temperature shutdown conditions A pull up resistor from error flag to either Vin or Vout is required for proper operation For information regarding the minimum and maximum values of pull up resistance refer the graph as follow U en oe TTN IN Bil N MIRA 7 at ko z e bagi bol li 10 100 Resistance kohm Enable Input TS39101 2 3 versions feature an active high enable EN input that allows ON OFF control of the regulator Current drain reduces to zero when the device is shutdown with only micro amperes of leakage current The EN input has TTL CMOS compatible thresholds for simple interfacing with logic interfacing EN may be directly tied to Vin and pulled up to the maximum supply voltage Transient Response and 3 3V to 2 5V or 2 5V to 1 8V Conversion TS39101 2 3 has excellent transient response to variations in input voltage and load current The device have been designed to respond quickly to load current variations and input voltage variations TS39100 1 2 3 7 10 1000 10000 Large output capacitors are not required to obtain this A standard preferably tantalum is all that is required Larger values performance 10uF output capacitor help to improve performance even further By virtue of its low drop
11. ulators allows voltages in excess of the desired output voltage to be applied without reverse current flow Output Capacitor Requirement The TS39100 1 2 3 series requires an output capacitor to maintain stability and improve transient response is necessary The value of this capacitor is dependent upon the output current lower currents allow smaller capacitors TS3I9100 1 2 3 series output capacitor selection is dependent upon the ESR of the output capacitor to maintain stability When the output capacitor is 10uF or greater the output capacitor should have an ESR less than 2Q This will improve transient response as well as promote stability Ultra low ESR capacitors lt 100mQ such as ceramic chip capacitors may promote instability These very low ESR levels may cause an oscillation and or under damped transient response A low ESR solid tantalum capacitor works extremely well and provides good transient response and stability over temperature aluminum electrolytes can also be used as long as the ESR of the capacitor is lt 20 TS39100 1 2 3 6 10 The value of the output capacitor can be increased without limit Higher capacitance values help to improve transient response and ripple rejection and reduce output noise Input Capacitor Requirement An input capacitor of 1uF or greater is recommended when the device is more than 4 away from the bulk AC supply capacitance or when the supply is a battery Small surface mount c
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TSC TS39100/1/2/3 handbook