Data Sheet HA17431G Series R03DS0087EJ0200 Rev.2.00 Adjustable Precision Shunt Regulators Jan 10, 2014 Description The HA17431G series is temperature-compensated adjustable precision shunt regulators. The products have improved features such as wide operating cathode voltage range and precision than the previous products. Output voltage can be set to any value in the range from the reference voltage (Vref) to 40 V by two external resistors. There are two types of reference voltage accuracy sources such as 1.0% standard version and 0.5% A version with higher precision. As for the packages, small surface-mounted types such as MPAK, MPAK-5, and UPAK are available. Therefore, the HA17431G series is suitable for various applications that require high precision and miniaturization. Features High-precision reference voltage : 2.500 V 1.0% (Ta = 25C, Standard version) : 2.500 V 0.5% (Ta = 25C, A version) Maximum cathode voltage : 40 V Continuous cathode current : 100 mA K-REF pin reversing type : HA17432G (UPAK) Operating temperature range : 40C to +85C Block Diagram K + REF 2.500V REF: Reference A : Anode A K : Cathode Application Circuit Example Switching power supply secondary-side error amplification circuit Vout R R1 + K REF A R2 GND HA17431G Series R03DS0087EJ0200 Rev.2.00 Page 1 of 13 Jan 10, 2014 HA17431G Series Ordering Information Reference Voltage (Ta = 25C) Operating Package Name Temperature Standard Version A Version Application Type No. (Package Code) Range 2.500V 1.0% 2.500V 0.5% Industrial HA17431GP TO-92 40C to +85C use (PRSS0003DA-A) HA17431GPA HA17431GLTP MPAK (PLSP0003ZB-A) HA17431GLTPA HA17431GLP MPAK-5 (PLSP0005ZB-A) HA17431GLPA HA17431GUP UPAK (PLZZ0004CA-A) HA17432GUP (K-REF pin reversing type) Pin Arrangement TO-92 MPAK MPAK-5 HA17431GP HA17431GLTP HA17431GLP HA17431GPA HA17431GLTPA HA17431GLPA A NC NC Mark side REF K REFAK (Top view) (Top view) UPAK UPAK HA17431GUP HA17432GUP A A REF A K REF A K K A REF (Top view) (Top view) Note: REF : Reference A : Anode K : Cathode NC : No connection R03DS0087EJ0200 Rev.2.00 Page 2 of 13 Jan 10, 2014