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| Ordering number : EN5286 Monolithic Linear IC LA5616 Microprocessor-Controlled Audio Power Supply Overview The LA5616 is appropriate for use in power supplies for microprocessor-controlled CD players, tuners, receivers, and similar audio equipment. Package Dimensions unit: mm 3018A-SIP10F [LA5616] Functions * * * * Low-saturation 5-V, 400-mA power supply 7.0-V, 1.0-A power supply Output reset generation function The 5.0-V system can be controlled (on/off) from the provided active-high enable pin. Features * The reset output delay time can be set with an external capacitor. * Sharp-cutoff current limiter circuit and thermal protection circuit * Active pull-up element incorporated in reset output circuit for improved noise suppression. SANYO: SIP10F Specifications Absolute Maximum Ratings at Ta = 25C Parameter Input voltage Enable pin voltage Reset output pin voltage Allowable power dissipation Operating temperature Storage temperature Symbol VIN max VEN max VRES max Pd max Topr Tstg Conditions Ratings 18 VIN max 18 2 -20 to +80 -55 to +150 Unit V V V W C C Operating Conditions at Ta = 25C Parameter Input voltage Output current Reset output source current Reset output sink current Symbol VIN IOUT1 IOUT2 IORH IORL High level Low level Conditions Ratings 5.6 to 17 0 to 400 0 to 1.0 0 to 200 0 to 2 Unit V mA A A mA SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 93096HA (OT)No. 5286-1/5 LA5616 Electrical Characteristics at Ta = 25C Parameter Symbol Conditions Ratings min typ max Unit [5.0-V Power Supply Block] VIN1 = VIN2, COUT2 = 47 F Output voltage Dropout voltage Line regulation Load regulation Peak output current Output shorted current Output noise voltage Output voltage temperature coefficient Ripple rejection Output on control voltage Output off control voltage Low-level output voltage [Reset Block] VIN1 = VIN2 = 12 V High reset output voltage Low reset output voltage Reset threshold voltage Reset hysteresis voltage Reset output delay time VORH VORL VRT Vhys td Cd = 0.1 F IORH = 200 A, Cd pin open ISRL = 2 mA, with Cd shorted to GND 3.95 40 7.5 4.73 4.98 100 4.2 100 10 5.23 200 4.45 200 12.5 V mV V mV ms VOUT1 VDROP1 VOLN1 VOLD1 IOP1 IOSC1 VN1 VIN1 = 12 V, IOUT1 = 400 mA VIN1 = 4.9 V, IOUT1 = 400 mA 5.6 VIN1 17 V, IOUT1 = 400 mA 5 mA IO 400 mA, VIN1 = 12 V VIN1 = 12 V VIN1 = 12 V 10 Hz f 100 kHz 400 4.75 5.0 0.5 20 50 500 100 70 1.6 60 2.6 1.0 0.3 400 5.25 1.0 100 150 V V mV mV mA mA Vrms mV/C dB V V V VO/Tal Tj = 25 to 125C Rref1 VENH1 VENL1 VO OFF1 f = 120 Hz, 6 V VIN1 17 V VIN1 = 12 V VIN1 = 12 V VIN1 = 12 V [7.0-V Power Supply Block] VIN1 = VIN2, COUT2 = 47 F Output voltage Dropout voltage Line regulation Load regulation Peak output current Output shorted current Ripple rejection Output on control voltage Output off control voltage Low-level output voltage VOUT2 VDROP2 VOLN2 VOLD2 IOP2 IOSC2 Rref2 VENH2 VENL2 VO OFF2 VIN2 = 12 V, IOUT2 = 1 A VIN2 = 6.5 V, IOUT2 = 1 A 9.0 VIN2 17 V, IOUT2 = 1 A 5 mA IO 1.0 A, VIN2 = 12 V VIN2 = 12 V VIN2 = 12 V f = 120 Hz, 9.0 V VIN2 17 V VIN2 = 12 V VIN2 = 12 V VIN2 = 12 V 2.6 1.0 0.3 1.0 500 50 6.5 7.0 1.0 7.5 2.0 200 300 V V mV mV A mA dB V V V No. 5286-2/5 LA5616 Pin Assignment Equivalent Circuit Block Diagram Test Circuit Diagram No. 5286-3/5 LA5616 Application Circuit Example Note: 1. The capacitors Cn and CRES are only needed when external noise is a problem. If these capacitors are used, then capacitor Co must have a value at least 1/3 that of capacitor CIN. A certain amount of noise may occur when VIN goes off due to differences in discharge timings between the capacitors. 2. A capacitor with a low temperature dependence must be used for the delay capacitor Cd. 3. The minimum value for the output capacitor Co is 47 F. 4. The input voltages must obey the relationship VIN1 VIN2, and must be brought up at the same time. Function Table EN1, EN2 L H VO1 L H Note: Open is also possible for the VEN1 = VEN2 = high state. (EN1, EN2 is independent.) Enable Input Equivalent Circuit No. 5286-4/5 LA5616 Reset Operation s 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. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: 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: 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. s 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 December, 1997. Specifications and information herein are subject to change without notice. No. 5286-5/5 |
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