Power Management ICs

Voltage Detector with Manual Reset and Delay Function (External Delay Time Setting) S-1003 Series

The S-1003 Series is a high-accuracy voltage detector developed using CMOS technology. The detection voltage is fixed internally with an accuracy of ±1.0% (−Vdet ≥ 2.2 V). It operates with current consumption of 500 nA typ.
The release signal can be delayed by setting a capacitor externally. Delay time accuracy is ±15%.
Moreover, since the S-1003 Series includes the manual reset function, the reset signal can be also output forcibly.
Two output forms Nch open-drain output and CMOS output are available.


Detection voltage
1.2 V to 5.0 V (0.1 V step)
Detection voltage accuracy
±1.0% (2.2 V ≤ −Vdet ≤ 5.0 V)
±22 mV (1.2 V ≤ −Vdet < 2.2 V)
Current consumption
500 nA typ.
Operation voltage range
0.95 V to 10.0 V
Hysteresis width
5% ± 2%
Manual reset function
MR pin logic active "L", active "H"
Delay time accuracy
±15% (CD = 4.7 nF)
Output form
Nch open-drain output (Active "L")
CMOS output (Active "L")
Operation temperature range
Ta = −40℃ to +85℃
Lead-free (Sn 100%), halogen-free


  • Power supply monitor for microcomputer and reset for CPU
  • Constant voltage power supply monitor for TV, Blu-ray recorder and home appliance
  • Power supply monitor for portable devices such as notebook PC, digital still camera and mobile phon

Parts List

  • U(Ux), S and G at the end of the product name of ABLIC Inc. were used to indicate different material specifications as “environmental code”,
    however, these have now been unified into “lead-free and halogen-free” and are identical in terms of environmental quality.
  • Note: Lead-free plating other than 100% Sn is applied to some limited old products, therefore, please contact our sales representatives for details.
  • These descriptions may be different from the actual product name and parameter.
    Please confirm the product name and specifications with the data sheet again.
  • The information herein is subject to change without notice.