Voltage Regulator (with Wide Input Voltage Range) with Reset for Automotive Applications
The R1150H series are CMOS-based voltage regulator (VR) ICs equipped with a voltage detector (VD). VR function of the R1150Hxxxx has features of low dropout voltage, high output voltage accuracy, and ultra-low supply current. Each of the R1150HxxxA series includes also a chip enable circuit. The output of built-in voltage detector is Nch open drain type. The R1150HxxxC/D have a pin for connecting external capacitor to set a certain reset delay time instead of chip enable control pin.
The regulator output voltage and the detector threshold voltage are fixed in the IC, Output Voltage Accuracy is ±2.0%, while Detector Threshold Accuracy is ±2.5%. The R1150HxxxA (with chip enable function) and R1150HxxxC series can supervise input voltage by the built-in detector. R1150HxxxB can supervise SENSE pin voltage by the built-in detector. R1150HxxxD type can supervise VOUT voltage, or Regulator Output Voltage of this IC itself.
Since the package for these ICs is the SOT-89-5 package, high density mounting of the ICs on boards is possible.
|Input Voltage Range (Maximum Rating)||Max. 24.0V (26V)|
|Supply Current||Typ. 7.0µA|
|Output Voltage (VR)||2.1V to 14.0V (0.1V steps)|
|Detector Threshold Voltage (VDET)||2.0V to 15.0V (R1150HxxxB/C/D)
2.3V to 15.0V (R1150HxxxA)
|Output Voltage Accuracy||±2.0% (VR), ±2.5% (VD)|
|Output Current||Min. 150mA (VOUT=5.0V)|
|Output Voltage Temperature Coefficient||Typ. ±100 ppm/°C|
|Detector Threshold Temperature Coefficient||Typ. ±100 ppm/°C|
|Built-in Fold-Back Protection Circuit||Typ. 45mA (Current at short mode)|
|Built-in Thermal Shutdown Circuit (VR)||Thermal Shutdown Temperature: Typ. 150°C
Released Temperature: Typ. 120°C
|Monitoring VDD voltage||R1150HxxxA/C|
|Monitoring sense pin (SENSE) voltage||R1150HxxxB|
|Monitoring VOUT pin voltage||R1150HxxxD|
- ・Power source for accessories such as car audios, car navigation systems, and ETC systems
- ・Power source for ECUs such as EV inverter and battery charge control unit
|Data Sheet||Package||Quality Assurance Data||Suffix||Composition & Content*1|
|SOT-89-5||Contact us*2||-HE||Sn (Sn: 100%)|
- *1The composition of the product cannot be specified.
- *2The reliability information is not listed for devices above rank2. Please contact Ricoh sales representatives for further informations.