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| Ordering number: EN 5196 Monolithic Linear IC LA5611 Multifunctional Voltage Regulator for TVs and VCRs Applications Package Dimensions unit : mm . Audiovisual equipment, VCRs and TVs Features 3107-SIP13H [LA5611] . Low saturation type of regulator (ON/OFF function built in) . Control amplifier built in. . Current limit and thermal limit circuits built in . Reverse current prevention provided (V 4) O SANYO : SIP13H Specfications Maximum Ratings at Ta = 25 C Parameter Maximum input voltage Allowable power dissipation Thermal resistance between junction and case Operating temperature Storage temperature Symbol VIN1 max VIN2 max Pd max j-c Topr Tstg VIN1 ^ VIN2 No heat sink Conditions Ratings 22 VIN1 2 4.7 -20 to +80 -40 to +150 Unit V W C/W C C Operating Conditions at Ta = 25 C Parameter Input voltage Output current 1 Output current 2 Output current 3 Output current 4 Symbol VIN1 VIN 2 IO1 IO2 IO3 IO4 Within ASO of external Tr 10 to 480 10 to 240 5 to 48 Conditions Ratings 11.5 to 20 6.2 to 20 Unit V V mA mA mA mA SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 92895HA (II) No.5196-1/5 LA5611 Operating Characteristics at Ta = 25 C, See specified Test Circuit. Parameter Symbol Conditions [No-load mode] VEN = low, VIN1 = 14 V, VIN2 = 6.6 V, IO1 to IO4 = 0 mA IIN1 Quiescent current IIN2 [Regulator 1] VEN = low, VIN1 = 14 V, VIN2 = 6.6 V, IO1 = 500 mA, with specified extenal transistor Output voltage 1 VO1 Dropout voltage VDROP1 Line regulation nVOLN1 12 V % VIN1 % 16 V Load regulation nVOLD1 0.1 A % IO1 % 1 A Ripple rejection Rrej1 Output low-level voltage VO1 OFF Control output current ICONT1 Output voltage/temperature nVO1/nTa coefficient [Regulator 2] VEN = low, VIN1 = 14 V, VIN2 = 6.6 V, IO2 = 400 mA Output voltage 2 VO2 Dropout voltage VDROP2 Line regulation nVOLN2 6 V % VIN2 % 7.2 V Load regulation nVOLD2 0.1 A % IO2 % 0.4 A Peak output current IOP2 Output short-circuit current IOSC2 Ripple rejection Rrej2 Output low-level voltage VO2 OFF Output voltage/temperature nVO2/nTa coefficient [Regulator 3] VEN = high, VIN1 = 14 V, VIN2 = 6.6 V, IO3 = 200 mA Output voltage 3 VO3 Dropout voltage VDROP3 Line regulation nVOLN3 6 V % VIN2 % 7.2 V Load regulation nVOLD3 10 mA % IO3 % 200 mA Peak output current IOP3 Output short-circuit current IOSC3 Ripple rejection Rrej3 Output voltage/temperature nVO3/nTa coefficient [Regulator 4] VEN = high, VIN1 = 14 V, VIN2 = 6.6 V, IO4 = 40 mA Output voltage 4 VO4 Dropout voltage VDROP4 Line regulation nVOLN4 12 V % VIN1 % 16 V Load regulation nVOLD4 10 mA % IO4 % 40 mA Peak output current IOP4 Output short-circuit current IOSC4 Ripple rejection Rrej4 Output voltage/temperature nVO4/nTa coefficient [Output on/off control] VIN1 = 14 V, VIN2 = 6.6 V Output on control voltage VENL VO1, VO2: on Output off control voltage VENH VO1, VO2: off [Control Amplifier] VIN1 = 14 V, VIN2 = 6.6 V Control output current ICONT2 Resistance ratio KR KR = R4/R3, Vref = 1.28 V typ min typ 8 2 8.5 9.0 0.8 max 16 4 9.5 1.6 140 150 0.2 10 1 4.80 5.05 0.5 5.30 1.0 20 100 240 0.2 0.5 4.80 5.05 0.5 5.30 1.0 20 100 120 Unit mA mA V V mV mV dB V mA mV/ C V V mV mV mA mA dB V mV/ C V V mV mV mA mA dB mV/ C 6.0 5.0 40 65 V V mV mV mA mA dB mV/ C 1.0 VIN1 V V mA 9.94 50 480 90 50 240 40 50 0.5 5.4 5.7 3.8 40 70 50 1 3.0 10 No.5196 - 2/5 LA5611 Pd max -- Ta Allowable power dissipation, Pd max -- W Infinite heat sink Aluminum heat sink mounting conditions Tightening torque: 4 kg.cm Note 1 With plain washer and silicone grease applied No heat sink Ambient temperature, Ta -- C Note 1: The tightening torque referred to in the above figure is a condition specified for the heat dissipation characteristics and not a working condition to be met when mounting the heat sink. Test Circuit Phase compensation or its equivalent Pin Functions No. 1 2 3 4 5 6 7 8 9 10 11 12 13 Symbol VO3 EN GND VO2 VIN2 VO4 ADJ2 VO1 CONT1 ADJ1 PC CONT2 VIN1 Function 5.05 V/240 mA regulator, with current limit, thermal shutdown. Regulator 1 and regulator 2 on/off control. Low active. Substrate of the LA5611 (minimum potential). 5.05 V/480 mA regulator, with on/off, current limit, thermal shutdown. Low voltage input. 5.7 V/40 mA regulator with reverse current prevention. VO1 adjustment pin. Resistance between pin 7 and ground VO1 up. Resistance between pin 7 and pin 8 VO1 down Output voltage sensor of 9.0 V regulator Base control of external NPN transistor. ICONT1 = 10 mA, with on/off, thermal shutdown coupled with the internal thermal shutdown of this regulator. VIN1 adjustment pin. Resistance between pin 10 and ground VIN1 up. Resistance between pin 13 and pin 10 VIN1 down Phase correction pin of switching regulator control amplifier. Drive output of switching regulator control amplifier. High voltage input. No.5196 - 3/5 LA5611 Function Table Function Input line Current limit Thermal limit On/off control (V: built in, x: not built in) Circuit block VO1 VIN1 x V V V O2 VIN2 V V V VO3 VIN2 V V x V O4 VIN1 V x x Control amplifier VIN1 x x x Usage Notes (1) Apply voltages to the voltage input pins on condition that VIN1 ^ VIN2. (2) Supply the voltages simultaneously to VIN1 and VIN2. Do not use the LA5611 with voltage applied to only one of these pins. (3) Since the control circuit of regulator 1 does not have current limit protection of such as an external NPN transistor, provide this protection in each application. Logic Table Conditions : when VIN1^ VIN2 (at VIN1 ^ 11.5 V, VIN2 ^ 6.2 V) EN L or open H VO1, VO2 H L (1) ``H'' for EN denotes high level; ``L'' denotes low level. (2) ``H'' for VO denotes output ON voltage; ``L'' denotes output OFF voltage. Thermal Design Notes (1) In the LA5611, the junction temperature (Tj) at which thermal shutdown is activated is approximately equal to 130C. (2) Consequently, the operating temperature range of REG1, REG2 and REG3 with the thermal shutdown function is restricted by the thermal shutdown characteristics (typical value) shown in the figure below. (3) The thermal shutdown characteristics vary 20C or so. Since thermal shutdown is liable to occur with inadequate heat dissipation, sufficient consideration must be given to the heat dissipation design. Thermal Shutdown Characteristics Allowable power dissipation, Pd -- W Typical Characteristics Ambient temperature, Ta -- C No.5196 - 4/5 LA5611 Equivalent Circuit Block Diagram and Sample Application Circuit Start-up Thermal Shutdown detection Switching regulator control amplifier Error amplifier Reverse current prevention Phase compensation Converter transformer Switching regulator External Tr Photocoupler Application Notes (1) Depending on the type, load current and connection position (distance from the LA5611) of the external NPN transistor, the capacitor C7 and resistance R6 is necessary for preventing oscillation. (2) C1 to C6 are bypass capacitors for preventing oscillation: as such, they must be positioned as close to the LA5611 as possible in order to stabilize operation. No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. Anyone purchasing any products described or contained herein for an above-mentioned use shall: 1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: 2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of September, 1995. Specifications and information herein are subject to change without notice. No.5196 - 5/5 |
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