Ordering number : EN2770D Monolithic Linear IC With Watchdog Timer LA5692D, 5692S Voltage Regulator Driver LA5692M Overview The LA5692 is a single-chip voltage regulator for microcomputer system monitor use that performs the functions of 5V output voltage control, watchdog timer, and voltage detector. Since the LA5692 can hold the reset output, it is especially suited for use in peripheral control and monitor output applications (example : valves used in refrigeration equipment, hot water supply system). Applications Microcomputer system for car equipment, refrigeration/heating equipment, office automation equipment. Features An external PNP transistor can be used to provide a low saturation voltage regulator. CK input with edge detector. Variable detection voltage. The watchdog time can be made longer. Functions Output voltage 5V control. Watchdog timer. Reset generation at power-ON mode. Reset hold output RES (2) (Cleared with CK re-input). Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard tostandard applicatio, intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for anyspecial applicatio (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer s products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer sproductsor equipment. 61808 MS JK/D0597HA (KT)/8099YT/8037TA, TS No.2770-1/7 LA5692D, 5692S, 5692M Specifications Maximum Ratings at Ta = 25C Parameter Symbol Conditions Ratings Unit Control pin voltage V max 1s 60 V CONT Control pin voltage V max 41 V CONT Control pin current I max V 6V * 11 mA CONT CC CK input voltage V max 25 V CK Reset pin voltage V (1) max, 41 V RES V (2) max RES Allowable power dissipation Pd max LA5692D, 5692S 500 mW LA5692M 370 mW Operating temperature Topr 40 to +85 C Storage temperature Tstg 55 to +150 C * : A PNP transistor is connected to the LA5692D, 5692S externally to provide a low-saturation voltage regulator. Therefore, I 100mA will flow, as starting current, in the V range where the output cannot be regulated. CONT CC Operating Conditions at Ta = 25C Parameter Symbol Conditions Ratings Unit Control pin voltage V 6 to 40 V CONT Control pin current I max 10 mA CONT Reset output current I (1) max, External R pull-up 8 mA RES I (2) max RES Reset detection voltage Vmin 4 V S Electrical Characteristics at Ta = 25C, V = 14V, I = 50mA, unless otherwise specified. CC O Ratings Parameter Symbol Conditions Unit min typ max Output voltage V 4.8 5.0 5.2 V O Line regulation1 V 1 9V V 16V 2 10 mV OLN CC Line regulation2 V 2 6V V 40V 4 30 mV OLN CC Load regulation V 1mA I 50mA 4 30 mV OLD O Current dissipation I I = 0 4.4 6.5 mA CC O Output noise voltage V 10Hz f 100kHz, V = 0 150 V NO CK Temperature coefficient V /Ta I = 5mA, 40C Ta +85C 0.2 mV/C O O of output voltage Reference voltage V 1.13 1.18 1.23 V REF H-level CK input voltage V 2 V IH L-level CK input voltage V 0.8 V IL H-level CK input current I V = 5V 0.3 0.7 mA IH CK L-level CK input current I V = 0V 1.0 0.1 A IL CK H-level reset output voltage V (1) 4.8 5.0 5.2 V (2) : 10K pull-up ORH RES V (2) ORH L-level reset output voltage1 V (1) 1 40 200 mV (2) : 10K pull-up ORL RES V (2) 1 ORL L-level reset output voltage2 V (1) 2 I (1) = I (2) = 8mA 0.16 0.8 V ORL RES RES V (2) 2 ORL CK input pulse width t V = 5V 3 s CKW CK Reset output delay time t C = 1F 7.510 12.5 ms d t Watchdog time t C = 1F 3040 50 ms WD t Watchdog reset time t C = 1F 0.10.25 0.4 ms WR t Reset hysteresis voltage V V = 4.5V 100 200 300 mV hys S No.2720-2/7