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LA5690D Dataheets PDF



Part Number LA5690D
Manufacturers Sanyo
Logo Sanyo
Description Monolithic Linear IC
Datasheet LA5690D DatasheetLA5690D Datasheet (PDF)

Ordering number:ENN2895A Monolithic Linear IC LA5690D, 5690S Voltage Regulator Driver with Watchdog Timer Overview The LA5690 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. The LA5690 uses a minimum number of parts to provide the basic functions. Package Dimensions unit:mm 3001B-DIP8 [LA5690D] 85 Applications • Microcomputer system for car equipment, refrigeration/ heatin.

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Ordering number:ENN2895A Monolithic Linear IC LA5690D, 5690S Voltage Regulator Driver with Watchdog Timer Overview The LA5690 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. The LA5690 uses a minimum number of parts to provide the basic functions. Package Dimensions unit:mm 3001B-DIP8 [LA5690D] 85 Applications • Microcomputer system for car equipment, refrigeration/ heating equipment, office automation equipment. 14 9.4 Functions • Output voltage 5V control. • Watchdog timer. • Power-ON reset function. • Positive/negative logic output for reset. Features • An external PNP transistor can be used to provide a lowsaturation voltage regulator. • CK input with edge detector. • Variable detection voltage. • Reset output with pull-up resistor of 10kΩ. 0.5 1.4 0.89 2.54 unit:mm 3017C-SIP9 [LA5690S] 22.3 1.5 0.51min 3.0 3.2 3.9max 7.62 6.4 0.25 SANYO : DIP8 3.0 0.51 min 5.7 max 4.8 1.0 3.2 1 0.99 2.54 0.5 9 1.3 0.25 1.35 SANYO : SIP9 Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft’s control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein. SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 40500TN (KT)/D219YT/8099YT/9088YT, TS No.2895–1/6 LA5690D, 5690S Specifications Maximum Ratings at Ta = 25˚C Parameter Symbol Conditions Ratings Unit Control pin voltage Control pin voltage Control pin current CK input voltage Reset pin voltage Allowable power dissipation VCONT max 1s VCONT max ICONT max *VCC≥ 6V VCK max VRES max, VRES max Pd max 60 V 41 V 11 mA 25 V 41 V 500 mW Operating temperature Storage temperature Topr Tstg –40 to +85 –55 to +150 ˚C ˚C * : A PNP transistor is connected to the LA5690D, 5690S externally to provide a low-saturation voltage regulator. Therefore, ICONT≈100mA will flow, as starting current, in the VCC range where the output cannot be regulated. Operating Conditions at Ta = 25˚C Parameter Control pin voltage Control pin current Reset output current Reset detection voltage Symbol VCONT ICONT max IRES max, IRES max VS min External R pull-up Conditions Ratings 6 to 40 10 Unit V mA 8 mA 4V Operating Characteristics at Ta = 25˚C, VCC=14V, IO=50mA, unless otherwise specified. Parameter Symbol Conditions Ratings min typ Output voltage Line regulation Load regulation Current drain Output noise voltage Temperature coefficient of output voltage Reference voltage H-level CK input voltage L-level CK input voltage H-level CK input current L-level CK input current H-level reset output voltage L-level reset output voltage L-level reset output voltage CK input pulse width Reset output delay time Watchdog time Watchdog reset time Reset hysteresis voltage VO ∆VOLN1 ∆VOLN2 ∆VOLD ICC VNO ∆VO/∆Ta VREF VIH VIL IIH IIL VORH/ VORH VORL1/ VORL1 VORL2/ VORL2 tCKW td tWD tWR Vhys 9V≤VCC≤16V 6V≤VCC≤40V 1mA≤IO≤50mA IO=0 10Hz≤f≤100kHz, VCK=0 IO=5mA, –40°C≤Ta≤+85°C VCK=5V VCK=0 IRES=IRES=8mA VCK=5V Ct=1µF Ct=1µF Ct=1µF VS=4.5V 4.8 5.0 2 4 4 4.9 200 ±0.2 1.13 1.18 2 0.3 –1.0 –0.1 4.8 5.0 40 0.16 3 7.5 10 3.8 5.0 0.1 0.25 100 200 Unit max 5.2 V 10 mV 30 mV 30 mV 6.5 mA µV mV/˚C 1.23 V V 0.8 V 0.7 mA µA 5.2 V 200 mV 0.8 V µs 12.5 ms 6.2 ms 0.4 ms 300 mV Pin Assignments Top view The NC pin, which is left open, must not be used for wiring. No.2895–2/6 Equivalent Circuit Block Diagram LA5690D, 5690S Test Circuit The reset output contains a pull-up resistor of 10kΩ. Timing Chart Note : Edge-triggered at the point indicated by the arrow of CK signal. No.2895–3/6 Sample Application Circuit LA5690D, 5690S · Ct, CO : Capacitors whose value does not vary with temperature very much. · CCK : Must be used to eliminate noise in the reset output. No.2895–4/6 LA5690D, 5690S No.2895–5/6 LA5690D, 5690S Specifications of any and all SANYO 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.


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