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S19500 Datasheet(PDF) 1 Page - Seiko Instruments Inc |
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S19500 Datasheet(HTML) 1 Page - Seiko Instruments Inc |
1 / 52 page S-19500/19501 Series www.sii-ic.com FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE CMOS VOLTAGE REGULATOR WITH WATCHDOG TIMER AND RESET FUNCTION © Seiko Instruments Inc., 2014-2015 Rev.1.2_00 Seiko Instruments Inc. 1 The S-19500/19501 Series, developed by using high-withstand voltage CMOS technology, is a low dropout positive voltage regulator with the watchdog timer and the reset function, which has high-withstand voltage. The monitoring time of watchdog timer can be adjusted by an external capacitor. Moreover, a voltage detection circuit which monitors the output voltage is also prepared. Caution This product can be used in vehicle equipment and in-vehicle equipment. Before using the product in the purpose, contact to SII is indispensable. Features Regulator block • Output voltage: 3.0 V to 5.3 V, selectable in 0.1 V step • Input voltage: 4.0 V to 36.0 V • Output voltage accuracy: ±2.0% (Tj = −40°C to +150°C) • Dropout voltage: 120 mV typ. (5.0 V output product, IOUT = 100 mA) • Output current: Possible to output 200 mA (VIN = VOUT(S) + 1.0 V) *1 • Input and output capacitors: A ceramic capacitor of 2.2 μF or more can be used. • Ripple rejection: 70 dB typ. (f = 100 Hz) • Built-in overcurrent protection circuit: Limits overcurrent of output transistor. • Built-in thermal shutdown circuit: Detection temperature 170°C typ. Detector block • Detection voltage: 2.6 V to 5.0 V, selectable in 0.1 V step • Detection voltage accuracy: ±100 mV (Tj = −40°C to +150°C) • Hysteresis width: 0.12 V min. • Release delay time: 18 ms typ. (CDLY = 47 nF) • Output form: Nch open-drain output (Built-in pull-up resistor) Watchdog timer block • Autonomous watchdog operation function: The watchdog timer operates due to detection of load current. • Watchdog activation current is adjustable: 1.5 mA typ. (WADJ pin is open) • Product type is selectable: S-19500 Series (Product with watchdog enable function (Output: WO / RO pin)) S-19501 Series (Product without watchdog enable function (Output: WO pin and RO pin)) • Watchdog trigger time is adjustable: 43 ms typ. (CDLY = 47 nF) • Output form: Nch open-drain output (Built-in pull-up resistor) Overall • Current consumption: 60 μA typ. (IOUT = 0 mA, When the watchdog timer is deactivated.) 75 μA typ. (IOUT ≤ 5 mA, When the watchdog timer is activated.) • Operation temperature range: Ta = −40°C to +125°C • Lead-free (Sn 100%), halogen-free • Withstand 45 V load dump • AEC-Q100 qualified *2 *1. Please make sure that the loss of the IC will not exceed the power dissipation when the output current is large. *2. Contact our sales office for details. Applications • Constant-voltage power supply for automotive electric component, monitoring of microcotroller Package • HSOP-8A |
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