LA5693D_08

Ordering number : EN2769D LA5693D LA5693M Overview Monolithic Linear IC with Watchdog Timer Voltage Regulator Driver The LA5693D and LA5693M 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 LA5693M 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 (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). 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 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' s products or equipment. 70908 MS/D0597HA (KT)/8199YT/4268TA, TS No.2769-1/7 LA5693D,5693M Specifications Maximum Ratings at Ta = 25°C Parameter Control pin voltage Symbol VCONT max ICONT max VCK max V RES(1) max, V RES(2) max Allowable power dissipation Pd max LA5693D LA5693M Operating temperature Storage temperature Topr Tstg 500 370 -40 to +85 -55 to +150 mW mW °C °C 1s Conditions Ratings 60 41 Control pin current CK input voltage Reset pin voltage 11 25 41 Unit V V mA V V * : 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. Operating Conditions at Ta = 25°C Parameter Control pin voltage Control pin current Reset output current Symbol VCONT ICONT max V RES(1) max, V RES(2) max Reset detection voltage VS min 4 V External R pull-up Conditions Ratings 6 to 40 10 8 Unit V mA mA Electrical Characteristics at Ta = 25°C, 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 V ORH(1)/ V ORH(2) ‘L’-level reset output voltage 1 V ORL(1)1/ V ORL(2)1 ‘L’-level reset output voltage 2 V ORL(1)2/ V ORL(2)2 CK input pulse width Reset output delay time Watchdog time Watchdog reset time Reset hysteresis voltage tCKW td tWD tWR Vhys VCK = 5V Ct = 1µF Ct = 1µF Ct = 1µF VS = 4.5V 3 7.5 30 0.1 100 10 40 0.25 200 12.5 50 0.4 300 µs ms ms ms mV I RES(1) = I RES(2) = 8mA 0.16 0.8 V RES(2): 10kΩ pull-up 40 200 mV VCK = 5V VCK = 0V RES(2): 10kΩ 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 µA V Symbol VO ∆VOLN1 ∆VOLN2 ∆VOLD ICC VNO ∆VO/∆Ta 9V ≤ VCC ≤ 16V 6V ≤ VCC ≤ 40V 1mA ≤ IO ≤ 50mA IO=0 10Hz ≤ f ≤ 100kHz, VCK = 0V IO = 5mA, –40°C ≤ Ta ≤ +85°C Conditions Ratings min 4.8 typ 5.0 2 4 4 4.4 150 ±0.2 max 5.2 5 30 30 6.5 Unit V mV mV mV mA µV mV/°C No.2769-2/7 LA5693D,5693M Package Dimensions unit : mm (typ) 3001D 9.14 8 5 Package Dimensions [LA5693D] unit : mm (typ) 3032D 5.0 8 7.62 [LA5693M] 5 6.4 4.4 6.4 1 1.0 4 0.25 1 (0.65) 1.27 4 0.35 0.15 1.4 3.9MAX (3.0) 3.2 0.51MIN (0.76) 2.54 0.5 SANYO : DIP8(300mil) SANYO : MFP8(225mil) Pin Assignment VCONT 1 RES(2) 2 VO 3 GND 4 Top view 8 CK LA5693D LA5693M 7 Ct 6 RES(1) 5 VS Block Diagram VCONT VO Starter VREF Error amp 10kΩ 0.1 (1.5) 1.7max RES(1) Reset generator WDT RES(2) 15kΩ 15kΩ Voltage detector GND Ct VS CK RES(1) : Contains a pull-up resistor of 10kΩ. RES(2) : Open collector. 0.63 No.2769-3/7 LA5693D,5693M Test Circuit TR1 VCC VO + Co 100µF VCONT VO VS R2 R1 + Cin 10µF R8 390Ω LA5693 RES(1) RES(2) GND 10kΩ R3 CK Ct + Ct CCK 0.01µF Application Circuit Example VCC R8 + Cin 10µF 390Ω VCONT VO R1 VDD R2 CPU RES DO VSS CCK 0.01µF + Co 100µF 2SA1289 TR1 VO VS R6 1.1kΩ R7 2.2kΩ D1 DS13SE TR3 2SC3331 R5 750Ω R4 1kΩ RES(2) GND R3 10kΩ TR2 2SA1258 LA5693 RES(1) CK Ct + 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.2769-4/7 LA5693D,5693M 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 VCC 0 5V VS VO 0 4V 2V Ct 0 RES(1) 0 Instantaneous drop Vhys RES(2) 0 CK 0 Digital output at I/O port of microcomputer td tCKW tWD tWR td Microcomputer operation start CPU abnormality Note : Edge-triggered at the point indicated by the arrow of CK signal. No.2769-5/7 LA5693D,5693M 600 Pd max -- Ta LA5693D Output voltage, VO -- V 6 VO -- VCC Ta=25°C Allowable power dissipation, Pd max --mW 500 5 400 370 300 LA5693M 4 3 200 2 IO=5mA 50mA 300mA 2 3 4 5 100 1 0 --40 0 --20 0 20 40 60 80 100 0 1 6 7 8 9 10 11 12 Ambient temperature, Ta -- °C 6 ILA01053 4.93 VRES -- VO Ta=25°C IO=50mA R1=11kΩ R2=3.9kΩ Supply voltage, VCC -- V ILA01054 VO -- Ta VCC=14V IO=5mA Reset output voltage, VRES -- V 5 4.92 4 Output voltage, VO -- V 2 3 4 5 6 ILA01055 4.91 3 4.90 2 1 4.89 Indeterminate operation 0 0 1 4.88 --60 --40 --20 0 20 40 60 80 100 Output voltage, VO --V 120 Ambient temperature, Ta -- °C 5.4 5.2 5.0 ILA01056 ICC -- VCC ICC -- Ta VCC=14V IO=0 RB=390Ω Ta=25°C IO=0 Current drain, ICC -- mA 0 1 2 3 4 5 6 7 8 9 10 11 12 100 Current drain, ICC -- mA 800 4.8 4.6 4.4 4.2 4.0 3.8 3.6 60 40 20 0 3.4 --60 --40 --20 0 20 40 60 80 100 Supply voltage, VCC -- V 100 90 ILA01057 60 Ambient temperature, Ta -- °C ILA01058 Rrej -- f td, tWD -- Ta VCC=14V IO=50mA Ct=1µF t WD Ripple rejection, Rrej -- dB 80 70 60 50 40 30 20 10 0 23 5 100 23 300mA Reset output delay time, td -- ms Watchdog time, tWD -- ms IO=50mA 50 40 30 Ta=25°C 8V≤VCC ≤18V Co=100µF IO=50mA, 300mA 5 1k 23 5 10k 23 20 10 td Frequency, f -- Hz 100k ILA01059 5 0 --60 --40 --20 0 20 40 60 80 100 Ambient temperature, Ta -- °C ILA01060 No.2769-6/7 LA5693D,5693M 0.6 tWR -- Ta CK input threshold voltage, VIN -- V Watchdog reset time, tWR -- ms 0.5 VCC=14V IO=50mA Ct=1µF 2.0 VIN -- Ta VCC=14V IO=5mA 1.6 0.4 1.2 0.3 0.8 0.2 0.1 0.4 0 --60 --40 --20 0 20 40 60 80 100 0 --60 --40 --20 0 20 40 60 80 100 Ambient temperature, Ta -- °C 360 340 ILA01061 5 Ambient temperature, Ta -- °C ILA01062 IIH -- Ta L reset output voltage, VORL(2) -- mV VORL(2) -- IRES(2) VCC=14V IO=50mA VCC=14V IO=50mA VCK=5V 3 2 CK input current, IIH -- µA 320 300 280 260 240 220 200 --60 100 7 5 3 2 C a= 25° T C 85° °C --40 10 --40 --20 0 20 40 60 80 100 3 5 7 Ambient temperature, Ta -- °C 1.0 2 3 5 ILA01063 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. 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. 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SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of July, 2008. Specifications and information herein are subject to change without notice. PS No.2769-7/7