Low Voltage(1.24V) Adjustable Precision Shunt Regulator
TEST CIRCUITS
VIN
VKA = VREF
VIN
TL432/A/C
VKA
IREF
VREF
IK
CO
0.1uF
R1
IK
IREF
R2
VREF
CO
0.1uF
< Fig 1. Test circuit for VKA = VREF >
VIN
VKA
IK
< Fig 2. Test circuit for VKA ≥ VREF >
< Fig 3. Test circuit for IKA(OFF) >
The deviation parameters ΔVREF/ΔT and ΔIREF/ΔT are defined as the differences between the maximum and
minimum values obtained over the recommended temperature range. The average full-range temperature
coefficient of the reference voltage, αVREF, is defined as :
(
VI(dev)
) × 106
αVREF (ppm/℃) =
VREF at 25℃
ΔTA
Where :
ΔTA is the recommended operating free-air temperature range of the device.
Sep. 2010 – Rev.1.5
-5-
HTC