TL431 STMicroelectronics, TL431 Datasheet - Page 8

• Manufacturer Part Number: TL431
• Description: Programmable Voltage Reference
• Manufacturer: STMicroelectronics

Specifications of TL431

• Adjustable Output Voltage: 2.5 to 36 V
• Sink Current Capability: 1 to 100 mA
• Typical Output Impedance: 0.22 Ω

Electrical characteristics
8/21
Figure 7.
Figure 9.
Figure 11. Test circuit for response time
Input
0 mA
1 mA
V
REF
Test circuit for V
Test circuit for I
R
V
KA
=36V
I
K
off
=10mA
KA
I
OFF
= V
I
K
ref
=1mA
V
KA
Doc ID 4467 Rev 10
Output
Figure 8.
Figure 10. Test circuit for phase margin and
Input
Input
V
KA
R1
R2
= V
REF
10μF
Test circuit for programming mode
voltage gain
(
1
+
R1
------ -
R2
I
)
REF
+ R1 x I
V
R
REF
V
REF
REF
I
K
I
K
=10mA
TL431, TL432
V
KA
Output
10μF