Product Overview
TO-252-9S (VA009-A)
HSOP-8A (FH008-A)Related Products
WDT (Window mode) S-19514/5 | S-19518 (Built-in Regulator ON / OFF circuit)
WDT (Time-out mode) S-19504/5
The S-19518 Series, developed by using high-withstand voltage CMOS technology, is a low dropout positive voltage regulator with the window 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.
Features
Regulator block
- Output voltage
- 3.3 V, 5.0 V
- Input voltage
- 3.0 V to 36.0 V
- Output voltage accuracy
- ±2.0% (Tj = −40°C to +150°C)
- Dropout voltage
- 100 mV typ. (5.0V output product, Iout = 100mA)
- Output current
- Possible to output 250 mA (Vin = Vout(s) + 1.0 V)*1
- Input and output capacitors
- A ceramic capacitor of 1.0 µF or more can be used.
- Built-in overcurrent protection circuit
- Limits overcurrent of output transistor.
- Built-in thermal shutdown circuit
- Detection temperature 170°C typ.
- Built-in ON / OFF circuit
- Ensures long battery life.
Detector block
- Detection voltage
- 2.6 V to 4.7 V, selectable in 0.1 V step
- Detection voltage accuracy
- ±2.0% (Tj = −40°C to +150°C)
- Hysteresis width
- 0.12 V min.
- Release delay time is adjustable*2
- 20 ms typ. (Cdly= 10 nF)
Watchdog timer block
- Watchdog activation current
- 1.5 mA typ.
- Watchdog trigger time is adjustable*2
- 46 ms typ. (Cdly= 10 nF)
- Autonomous watchdog operation function
- Watchdog timer operates due to detection of load current.
- Watchdog mode
- Window mode
Overall
- Current consumption
- 3.2 μA typ. (During regulator operation, during watchdog timer deactivation)
0.1 μA typ. (During regulator stop) - Operation temperature range
- Ta = −40°C to +125°C
- Lead-free (Sn 100%), halogen-free
- Withstand 45 V load dump
- AEC-Q100 qualified*3
*1. Please make sure that the loss of the IC will not exceed the power dissipation when the output current is large.
*2. The release delay time and the watchdog trigger time can be adjusted by connecting Cdly to the DLY pin.
*3. Contact our sales representatives for details.
Applications
- Constant-voltage power supply for automotive electric component, monitoring of microcontroller