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| TL431IDBZR215 Datasheet, PDF (18/27 Pages) NXP Semiconductors – Adjustable precision shunt regulator | |||
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NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
100
IK
(mA)
80
60
40
(1)
Stable
(2)
Oscillation
006aab591
(1)
(2)
Stable
20
0
10â1
1
10
102
103
104
CL (nF)
Tamb = 25 ï°C
(1) VKA = Vref
(2) VKA = 5 V
VKA = 10 V: no oscillation
VKA = 15 V: no oscillation
Fig 29. TL431XSDT: Cathode current as a function of load capacitance; typical values
150 Ω
IK
CL
VBATT
R1 = 10 kΩ
IK
CL
R2
150 Ω
VBATT
VKA = Vref
Tamb = 25 ï°C
GND
006aab589
Fig 30. Test circuit (1) to Figure 29
GND
006aab590
VKA = 5 V
VKA > 10 V: stable operation
Tamb = 25 ï°C
Fig 31. Test circuit (2) to Figure 29
TL431_FAM
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 â 30 June 2011
© NXP B.V. 2011. All rights reserved.
18 of 27
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