AP432 Advanced Power Electronics Corp., AP432 Datasheet - Page 4

• Manufacturer Part Number: AP432
• Manufacturer: Advanced Power Electronics Corp.

Specifications of AP432

• Vref: 1.24
• Cathode Voltage: 20
• Continuous Cathode Current: 250
• Accuracy: 0.5%, 1%
• Minimum Cathode Current For Regulation Typ.: 0.15
• Package: SOP8,SOT89,TO92,SOT23,SOT23-5

Adjustable Precision Shunt Regulator
Note 3. Deviation of reference input voltage, V
The average temperature coefficient of the reference input voltage αV
Where:
T2 – T1 = full temperature change.
αV
Note 4. The dynamic output impedance, R
When the device is programmed with two external resistors R1 and R2 (see Figure 2.), the dynamic output
impedance of the overall circuit, is defined as:
Advanced Power Electronics Corp.
www.a-power.com.tw
REF
Test Circuits
Fig1. Test Circuit for V
the full temperature range.
can be positive or negative depending on whether the slope is positive or negative.
Advanced Power
Electronics Corp.
V
REF
Input
I
KA
KA
= V
V
V
V
KA
REF
MAX
MIN
α
V
REF
T
V
I
KA
Fig2. Test circuit for V
=
=
Z
Z
, is defined as:
KA
R1
R2
(
V
V
'
REF
REF
DEV
=
V
Z
DEV
∆
TEMPERATURE
(1
T
∆
, is defined as the maximum variation of the reference over
KA
(25
I
V
v
V
2
REF
i
DEV
REF
+
≈
−
°
C)
=
R2
R1
T
Z
= V
)
1
∆
KA
IN
∆
×
V
)
MAX
I
10
KA
+
KA
V
KA
(
I
I
6
1
KA
- V
REF
KA
＞V
+
MIN
……………………..……………….. (
R2
R1
⋅
REF
R1
)
REF
Fig3. Test Circuit for off-state Current
is defined as:
T
2
IN
V
KA
I
Z(OFF)
AP432
ppm
°
C
4
)