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| Ordering number : EN2770B Monolithic Linear IC LA5692D, 5692S, 5692M Voltage Regulator Driver with Watchdog Timer Overview Package Dimensions The LA5692 is a single-chip voltage regulator for unit: mm microcomputer system monitor use that performs the 3001B-DIP8 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). [LA5692D] 8 5 7.62 6.4 1 9.4 4 3.9max * Microcomputer system for car equipment, refrigeration/ heating equipment, office automation equipment. 0.5 0.89 2.54 1.4 0.51min 3.0 Applications 3.2 SANYO : DIP8 Functions * Output voltage 5V control. * Watchdog timer. * Reset generation at power-ON mode. * Reset hold output [RES (2)] (Cleared with CK reinput). unit: mm 3017B-SIP9 [LA5692S] 22.3 1.5 0.51 min 5.7 max 3.0 Features 4.8 * An external PNP transistor can be used to provide a lowsaturation voltage regulator. * CK input with edge detector. * Variable detection voltage. * The watchdog time can be made longer. 1.0 1 0.99 2.54 0.5 9 1.3 0.25 1.35 3.2 SANYO : SIP9 unit: mm 3032B-MFP8 [LA5692M] 8 5 5.1 1.5 0.35 1.27 0.645 0.1 1.8max 1 4 0.15 5.15 6.4 4.4 0.625 SANYO : MFP8 SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN D0597HA (KT)/8099YT/8037TA, TS No.2770-1/6 0.25 LA5692D, 5692S, 5692M Specifications Maximum Ratings at Ta=25C Parameter Control pin voltage Control pin voltage Control pin current CK input voltage Reset pin voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCONTmax VCONTmax ICONTmax VCKmax VRES(1)max, VRES(2)max Pd max Topr Tstg LA5692D, 5692S LA5692M 500 370 -40 to +85 -55 to +150 mW mW C C *VCC6V 1s Conditions Ratings 60 41 11 25 41 Unit V V mA V V * : A PNP transistor is connected to the LA5692D, 5692S externally to provide a low-saturation voltage regulator. Therefore, ICONT100mA will flow, as starting current, in the VCC range where the output cannot be regulated. Operating Conditions at Ta=25C Parameter Control pin voltage Control pin current Reset output current Reset detection voltage Symbol VCONT ICONTmax IRES(1)max, IRES(2)max VS min 4 V External R pull-up Conditions Ratings 6 to 40 10 8 Unit V mA mA Operating Characteristics at Ta=25C, VCC=14V, IO=50mA, unless otherwise specified. Parameter Output voltage Line regulation1 Line regulation2 Load regulation Current dissipation 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 VREF VIH VIL IIH IIL VORH(1)/ VORH(2) `L'-level reset output voltage1 VORL(1)1/ VORL(2)1 `L'-level reset output voltage2 VORL(1)2/ VORL(2)2 CK input pulse width Reset output delay time Watchdog time Watchdog reset time Reset hysteresis voltage tCKW td tWD tWR Vhys IRES(1)=IRES(2)=8mA VCK=5V Ct=1F Ct=1F Ct=1F VS=4.5V 3 7.5 30 0.1 100 10 40 0.25 200 12.5 50 0.4 300 0.16 0.8 V s ms ms ms mV RES(2) : 10k pull-up 40 200 mV VCK=5V VCK=0V RES(2) : 10k pull-up -1.0 4.8 0.3 -0.1 5.0 5.2 1.13 2 0.8 0.7 1.18 1.23 V V V mA A V VO VOLN1 VOLN2 VOLD ICC VNO VO /Ta 9VVCC16V 6VVCC40V 1mAIO50mA IO=0 10Hzf100kHz, VCK=0 IO=5mA, -40CTa+85C Symbol Conditions Ratings min 4.8 typ 5.0 2 4 4 4.4 150 0.2 max 5.2 10 30 30 6.5 Unit V mV mV mV mA V mV/C No.2770-2/6 LA5692D, 5692S, 5692M Pin Assignment Do not use the NC pin. Top view Equivalent Circuit Block Diagram Starter Error amp Reset generator Voltage detector RES(1) : Contains a pull-up resistor of 10k. RES(2) : Open collector Test Circuit Unit (resistance : , capacitance : F) No.2770-3/6 LA5692D, 5692S, 5692M Sample Application Circuit Unit (resistance : , capacitance : F) Note on application 1. For stable operation, place Cin, CO, and TR1 as near to the IC as possible. 2. When used in 0C or below it, a capacitor of which impedance at high-frequency operation is low and has a good temperature characteristic (such as SANYO OS-CON capacitor or others) should be used to prevent oscillation. 3. Set VS to the output voltage level where the circuit will be reset using external resistors R1 and R2. VS should be set to 4V or greater due to internal circuit operation. 4. CCK must be inserted to cut the high range element of clock noise to prevent it from becoming a reset output noise. 5. For Ct, a capacitor which less varies the capacitance according to the temperature should be used. Timing Chart Application of power Instantaneous drop Digital output at I/O port of microcomputer Microcomputer operation start CPU abnormality Note : Edge-triggered at the point indicated by the arrow of CK signal. No.2770-4/6 LA5692D, 5692S, 5692M Allowable power dissipation, Pd max - mW Ambient temperature, Ta - C Output voltage, VO - V Supply voltage, VCC - V Reset output voltage, VRES - V Indeterminate operation Output voltage, VO - V Output voltage, VO - V Ambient temperature, Ta - C Current drain, ICC - mA Current drain, ICC - mA Supply voltage, VCC - V Ambient temperature, Ta - C Frequency, f - Hz Reset output delay time, td - ms Watchdog time, tWD - ms Ripple rejection, Rrej - dB Ambient temperature, Ta - C No.2770-5/6 LA5692D, 5692S, 5692M Ambient temperature, Ta - C CK input threshold voltage, VIN - V Watchdog time, tWR - ms Ambient temperature, Ta - C Ambient temperature, Ta - C L reset output voltage, VORL(2) - mV CK input current, IIH - A Reset output current, IRES(2) - mA 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: 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 responsibilty 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 December, 1997. Specifications and information herein are subject to change without notice. No.2770-6/6 |
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