Ordering number : ENA2085 LA5693D LA5693MD Monolithic Linear IC with Watchdog Timer Voltage Regulator Driver Overview The LA5693D and LA5693MD 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 LA5693D and LA5693MD 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). Features • An external PNP transistor can be used to provide a low-saturation voltage regulator. • Since the CK input has no edge detector, a high degree of flexibility is allowed in applications. • Variable detection voltage. • The watchdog time can be made longer. Functions • Output voltage 5V control. • Watchdog timer. • Power-ON reset function. • Reset hold output [RES (2)] (Cleared with CK re-input). Applications • Microcomputer system for car equipment, refrigeration/heating equipment, office automation equipment. Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (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 new introduction or other application different from current conditions on the usage of automotive device, communication device, office equipment, industrial equipment etc. , please consult with us about usage condition (temperature, operation time etc.) 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 ' s products or equipment. 62012 SY 20120227-S00003 No.A2085-1/7 LA5693D, LA5693MD Specifications Maximum Ratings at Ta = 25°C Parameter Control pin voltage Control pin current Symbol VCONT max Conditions Ratings Unit 1s 60 V 41 V ICONT max 11 mA CK input voltage VCK max 25 V Reset pin voltage V RES(1) max, 41 V V RES(2) max Allowable power dissipation Pd max LA5693D 500 mW LA5693MD 350 mW Operating temperature Topr -40 to +85 °C Storage temperature Tstg -55 to +150 °C * : A PNP transistor is connected to the LA5693D, LA5693M 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. Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Operating Conditions at Ta = 25°C Parameter Control pin voltage Control pin current Reset output current Symbol Conditions Ratings VCONT Unit 6 to 40 ICONT max V RES(1) max, External R pull-up V 10 mA 8 mA 4 V V RES(2) max Reset detection voltage VS min Electrical Characteristics at Ta = 25°C, VCC = 14V, IO=50mA, unless otherwise specified. Parameter Output voltage Symbol Conditions VO Ratings min typ 4.8 Unit max 5.0 5.2 Line regulation1 ΔVOLN1 9V ≤ VCC ≤ 16V 2 5 mV V Line regulation2 ΔVOLN2 6V ≤ VCC ≤ 40V 4 30 mV Load regulation ΔVOLD 1mA ≤ IO ≤ 50mA 4 30 mV 6.5 mA Current dissipation ICC IO=0 4.4 Output noise voltage VNO 10Hz ≤ f ≤ 100kHz, VCK = 0V 150 μV IO = 5mA, –40°C ≤ Ta ≤ +85°C ±0.2 mV/°C Temperature coefficient of ∆VO/ΔTa output voltage Reference voltage VREF 1.13 ‘H’-level CK input voltage VIH ‘L’-level CK input voltage VIL ‘H’-level CK input current IIH VCK = 5V IIL VCK = 0V ‘L’-level CK input current ‘H’-level reset output voltage V ORH(1)/ 1.18 1.23 V 0.8 V 0.7 mA 2 RES(2): 10kΩ pull-up V 0.3 μA -1.0 -0.1 4.8 5.0 5.2 V 40 200 mV 0.16 0.8 V V ORH(2) ‘L’-level reset output voltage 1 V ORL(1)1/ RES(2): 10kΩ pull-up V ORL(2)1 ‘L’-level reset output voltage 2 V ORL(1)2/ I RES(1) = I RES(2) = 8mA V ORL(2)2 CK input pulse width μs tCKW VCK = 5V td Ct = 1μF 7.5 10 12.5 ms tWD Ct = 1μF 30 40 50 ms Watchdog reset time tWR Ct = 1μF 0.1 0.25 0.4 ms Reset hysteresis voltage Vhys VS = 4.5V 100 200 300 mV Reset output delay time Watchdog time 3 No.A2085-2/7 LA5693D, LA5693MD Package Dimensions Package Dimensions unit : mm (typ) 3001D unit : mm (typ) 3424 [LA5693D] 4.9 9.14 0.25 0.835 0.375 2 0.42 0.2 (3.0) 1.75 MAX 1.27 (0.76) 0.175 0.51MIN 3.2 3.9MAX 1 1.4 6.0 4 3.9 1 8 7.62 5 6.4 8 1.0 [LA5693MD] 2.54 0.5 SANYO : DIP8(300mil) SANYO : SOIC8 Pin Assignment VCONT 1 RES(2) 2 VO 3 8 CK LA5693D LA5693MD GND 4 7 Ct 6 RES(1) 5 VS (Top view) Block Diagram Error amp RES(1) Reset generator RES(2) WDT Voltage detector VS 15kΩ VREF 15kΩ Starter VO 10kΩ VCONT CK GND Ct RES(1) : Contains a pull-up resistor of 10kΩ. RES(2) : Open collector. No.A2085-3/7 LA5693D, LA5693MD Test Circuit TR1 VCC + VO + R8 Cin 10μF Co 100μF 390Ω VCONT VO R1 VS R2 LA5693 RES(1) RES(2) Ct 10kΩ R3 GND CK + CCK 0.01μF Ct Application Circuit Example 2SA1289 TR1 VCC VO R8 + Cin 10μF + 390Ω VCONT VO Co 100μF R1 VDD VS TR2 2SA1258 R6 1.1kΩ R7 2.2kΩ D1 DS13SE R3 10kΩ RES(2) R5 750Ω CPU RES RES(1) R4 1kΩ TR3 2SC3331 R2 LA5693 GND CK DO VSS Ct + CCK 0.01μF Ct VS=VREF × VREF≈1.18[V] R1 R2 + 1 td=10×Ct(μF) [ms] tWD=40×Ct(μF) [ms] tWR=0.25×Ct(μF) [ms] No.A2085-4/7 LA5693D, LA5693MD Note on application 1. For stable operation, place Cin, CO, and TR1 as near to the IC as possible. 2. When used in 0°C 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 VCC 0 5V VS VO 0 4V 2V Ct 0 RES(1) RES(2) CK Vhys 0 0 0 Digital output at I/O port of microcomputer td Microcomputer operation start tCKW tWD tWR td CPU abnormality Note : Edge-triggered at the point indicated by the arrow of CK signal. No.A2085-5/7 LA5693D, LA5693MD Pd max -- Ta LA5693D 5 LA5693MD 300 200 100 --20 0 20 40 60 80 Ambient temperature, Ta -- °C 2 0 100 0 1 2 3 4 5 6 7 8 9 Supply voltage, VCC -- V 10 11 12 ILA01054 VO -- Ta 4.93 Ta=25∞C IO=50mA R1=11kΩ R2=3.9kΩ VCC=14V IO=5mA 4.92 Output voltage, VO -- V 5 50mA ILA01053 VRES -- VO 6 Reset output voltage, VRES -- V 3 1 0 --40 4 3 2 4.91 4.90 4.89 1 Indeterminate operation 4.88 --60 0 0 1 2 3 4 5 Output voltage, VO --V 6 --40 --20 0 20 40 60 Ambient temperature, Ta -- ∞C ILA01055 ICC -- VCC 120 Current drain, ICC -- mA 60 40 100 ILA01056 VCC=14V IO=0 RB=390Ω 5.2 5.0 800 80 ICC -- Ta 5.4 Ta=25∞C IO=0 100 Current drain, ICC -- mA 4 300mA 400 350 Ta=25∞C IO=5mA 500 VO -- VCC 6 Output voltage, VO -- V Allowable power dissipation, Pd max --mW 600 4.8 4.6 4.4 4.2 4.0 3.8 20 3.6 0 0 1 2 3 4 5 6 7 8 9 Supply voltage, VCC -- V 11 3.4 --60 12 IO=50mA 80 300mA 60 70 60 50 40 30 Ta=25∞C 8V VCC 18V Co=100μF IO=50mA, 300mA 20 10 0 2 3 5 100 2 3 5 1k 2 3 5 Frequency, f -- Hz 10k 2 3 5 100k ILA01059 --20 0 20 40 60 Ambient temperature, Ta -- ∞C Reset output delay time, td -- ms Watchdog time, tWD -- ms 90 --40 ILA01057 Rrej -- f 100 Ripple rejection, Rrej -- dB 10 50 80 100 ILA01058 td, tWD -- Ta VCC=14V IO=50mA Ct=1μF t WD 40 30 20 td 10 0 --60 --40 --20 0 20 40 60 Ambient temperature, Ta -- ∞C 80 100 ILA01060 No.A2085-6/7 LA5693D, LA5693MD tWR -- Ta 0.5 0.4 0.3 0.2 0.1 0 --60 --40 --20 0 20 40 60 Ambient temperature, Ta -- °C 320 300 280 260 240 220 200 --60 1.6 1.2 0.8 0.4 --40 --20 0 20 40 60 80 Ambient temperature, Ta -- °C ILA01061 VCC=14V IO=50mA VCK=5V 340 VCC=14V IO=5mA 0 --60 100 IIH -- Ta 360 CK input current, IIH -- µA 80 VIN -- Ta 2.0 CK input threshold voltage, VIN -- V VCC=14V IO=50mA Ct=1µF 100 ILA01062 VORL(2) -- IRES(2) 5 L reset output voltage, VORL(2) -- mV Watchdog reset time, tWR -- ms 0.6 VCC=14V IO=50mA 3 2 5°C =8 C a 25° T 100 °C --40 7 5 3 2 10 --40 --20 0 20 40 60 Ambient temperature, Ta -- °C 80 100 ILA01063 3 5 7 1.0 2 3 5 Reset output current, IRES(2) -- mA 7 10 ILA01064 SANYO Semiconductor Co.,Ltd. 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 Semiconductor Co.,Ltd. products described or contained herein. Regarding monolithic semiconductors, if you should intend to use this IC continuously under high temperature, high current, high voltage, or drastic temperature change, even if it is used within the range of absolute maximum ratings or operating conditions, there is a possibility of decrease reliability. Please contact us for a confirmation. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written consent of SANYO Semiconductor Co.,Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO Semiconductor Co.,Ltd. product that you intend to use. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellectual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of Jun, 2012. Specifications and information herein are subject to change without notice. PS No.A2085-7/7