TL431IDBZR215 Datasheet, PDF (7/27 Pages) NXP Semiconductors – Adjustable precision shunt regulator

NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
11. Thermal characteristics
Table 9.
Symbol
R_th(j-a)
Thermal characteristics
Parameter
thermal resistance from
junction to ambient
Conditions
in free air
R_th(j-sp)
thermal resistance from
junction to solder point
Min Typ Max Unit
[1] _-
-
360 K/W
[2] _-
-
216 K/W
[3] _-
-
132 K/W
[4] _-
-
50
K/W
[1] Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint.
[2] Device mounted on an FR4 PCB, single-sided copper, tin-plated, mounting pad for anode 1 cm².
[3] Device mounted on a ceramic PCB, Al₂O₃, standard footprint.
[4] Soldering point of anode.
12. Characteristics
Table 10. Characteristics
T_amb = 25 C unless otherwise specified.
Symbol Parameter
Conditions
Min
Typ
Standard-Grade (2 %):
TL431CDBZR; TL431IDBZR; TL431QDBZR; TL431FDT; TL431MFDT; TL431SDT; TL431MSDT
V_ref
V_ref
reference voltage
reference voltage variation
TL431CDBZR
TL431IDBZR
TL431QDBZR
TL431FDT
TL431MFDT
TL431SDT
TL431MSDT
V_KA = V_ref; I_K = 10 mA
V_KA = V_ref; I_K = 10 mA
T_amb = 0 C to 70 C
T_amb = 40 C to 85 C
T_amb = 40 C to 125 C
2440
-
-
2495
6
14
V_ref/V_KA reference voltage variation
to cathode-anode voltage
variation ratio
I_K = 10 mA
V_KA = 10 V to V_ref
V_KA = 36 V to 10 V
-
1.4
-
1
I_ref
reference current
I_K = 10 mA;
-
2
R1 = 10 k; R2 = open
I_ref
reference current variation I_K = 10 mA;
R1 = 10 k; R2 = open
TL431CDBZR
TL431IDBZR
TL431QDBZR
TL431FDT
TL431MFDT
TL431SDT
TL431MSDT
T_amb = 0 C to 70 C
-
0.4
T_amb = 40 C to 85 C
-
0.8
T_amb = 40 C to 125 C
I_K(min)
minimum cathode current V_KA = V_ref
-
0.4
Max
2550
16
34
2.7
2
4
1.2
2.5
1
Unit
mV
mV
mV
mV/V
mV/V
A
A
A
mA
TL431_FAM
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 30 June 2011
© NXP B.V. 2011. All rights reserved.
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