S-19500A03A-E8T1U4 Datasheet, PDF (1/52 Pages) Seiko Instruments Inc – CMOS VOLTAGE REGULATOR WITH WATCHDOG TIMER AND RESET FUNCTION

S-19500/19501 Series
FOR AUTOMOTIVE 125°C OPERATION HIGH-WITHSTAND VOLTAGE
www.sii-ic.com
CMOS VOLTAGE REGULATOR WITH WATCHDOG TIMER AND RESET FUNCTION
© SII Semiconductor Corporation, 2014-2015
Rev.1.2_01
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 Semiconductor Corporation is indispensable.
 Features
Regulator block
• Output voltage:
• Input voltage:
• Output voltage accuracy:
• Dropout voltage:
• Output current:
• Input and output capacitors:
• Ripple rejection:
• Built-in overcurrent protection circuit:
• Built-in thermal shutdown circuit:
3.0 V to 5.3 V, selectable in 0.1 V step
4.0 V to 36.0 V
±2.0% (Tj = −40°C to +150°C)
120 mV typ. (5.0 V output product, IOUT = 100 mA)
Possible to output 200 mA (VIN = VOUT(S) + 1.0 V)^*1
A ceramic capacitor of 2.2 μF or more can be used.
70 dB typ. (f = 100 Hz)
Limits overcurrent of output transistor.
Detection temperature 170°C typ.
Detector block
• Detection voltage:
• Detection voltage accuracy:
• Hysteresis width:
• Release delay time:
• Output form:
2.6 V to 5.0 V, selectable in 0.1 V step
±100 mV (Tj = −40°C to +150°C)
0.12 V min.
18 ms typ. (CDLY = 47 nF)
Nch open-drain output (Built-in pull-up resistor)
Watchdog timer block
• Autonomous watchdog operation function:
• Watchdog activation current is adjustable:
• Product type is selectable:
• Watchdog trigger time is adjustable:
• Output form:
The watchdog timer operates due to detection of load current.
1.5 mA typ. (WADJ pin is open)
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))
43 ms typ. (CDLY = 47 nF)
Nch open-drain output (Built-in pull-up resistor)
Overall
• Current consumption:
• Operation temperature range:
• Lead-free (Sn 100%), halogen-free
• Withstand 45 V load dump
• AEC-Q100 qualified^*2
60 μA typ. (IOUT = 0 mA, When the watchdog timer is deactivated.)
75 μA typ. (IOUT ≤ 5 mA, When the watchdog timer is activated.)
Ta = −40°C to +125°C
*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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