TL431 family All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 5 — 01 September 2015 9 of 27
NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
I
ref
reference current I
K
=10mA;
R1 = 10 k; R2 = open
-24A
I
ref
reference current variation I
K
=10mA;
R1 = 10 k; R2 = open
TL431ACDBZR T
amb
=0Cto70C-0.41.2A
TL431AIDBZR T
amb
= 40 Cto85C- 0.82.5A
TL431AQDBZR
TL431AFDT
TL431AMFDT
TL431ASDT
TL431AMSDT
T
amb
= 40 C to 125 C
I
K(min)
minimum cathode current V
KA
=V
ref
TL431ACDBZR T
amb
=0Cto70C-0.40.6mA
TL431AIDBZR T
amb
= 40 Cto85C
TL431AQDBZR
TL431AFDT
TL431AMFDT
TL431ASDT
TL431AMSDT
T
amb
= 40 C to 125 C
I
off
off-state current V
KA
=36V; V
ref
=0 - 0.1 0.5 A
Z
KA
dynamic cathode-anode
impedance
I
K
=1mAto100mA;
V
KA
=V
ref
; f < 1 kHz
-0.20.5
B-Grade(0.5%):
TL431BCDBZR; TL431BIDBZR; TL431BQDBZR; TL431BFDT; TL431BMFDT; TL431BSDT; TL431BMSDT
V
ref
reference voltage V
KA
=V
ref
; I
K
= 10 mA 2483 2495 2507 mV
V
ref
reference voltage variation V
KA
=V
ref
; I
K
=10mA
TL431BCDBZR T
amb
=0Cto70C-616mV
TL431BIDBZR T
amb
= 40 Cto85C - 14 34 mV
TL431BQDBZR
TL431BFDT
TL431BMFDT
TL431BSDT
TL431BMSDT
T
amb
= 40 C to 125 C
V
ref
/V
KA
reference voltage variation
to cathode-anode voltage
variation ratio
I
K
=10mA
V
KA
=10VtoV
ref
- 1.4 2.7 mV/V
V
KA
=36Vto10V - 1 2mV/V
I
ref
reference current I
K
=10mA;
R1 = 10 k; R2 = open
-24A
Table 10. Characteristics
…continued
T
amb
=25
C unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
