TL431 Datasheet, PDF (7/23 Pages) Motorola, Inc – PROGRAMMABLE PRECISION REFERENCES

NXP Semiconductors
TL431 family
Adjustable precision shunt regulator
Table 10. Characteristics …continued
Symbol Parameter
Conditions
Min
Typ
A-Grade (1 %): TL431ACDBZR; TL431AIDBZR; TL431AQDBZR; TL431ASDT; TL431AMSDT
V_ref
ΔV_ref
reference voltage
reference voltage variation
TL431ACDBZR
TL431AIDBZR
TL431AQDBZR
TL431ASDT
TL431AMSDT
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
2470
-
-
2495
6
14
ΔV_ref/ΔV_KA reference voltage variation
to cathode-anode voltage
variation ratio
I_K = 10 mA
ΔV_KA = 10 V to V_ref
ΔV_KA = 36 V to 10 V
-
−1.4
-
−1
I_ref
reference current
I_K = 10 mA;
-
2
R1 = 10 kΩ; R2 = open
ΔI_ref
reference current variation I_K = 10 mA;
R1 = 10 kΩ; R2 = open
TL431ACDBZR
TL431AIDBZR
TL431AQDBZR
TL431ASDT
TL431AMSDT
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
TL431ACDBZR
T_amb = 0 °C to 70 °C
-
0.4
TL431AIDBZR
T_amb = −40 °C to 85 °C
-
0.4
TL431AQDBZR
TL431ASDT
T_amb = −40 °C to 125 °C
TL431AMSDT
I_off
off-state current
V_KA = 36 V; V_ref = 0
-
0.1
Z_KA
dynamic cathode-anode
I_K = 1 mA to 100 mA;
impedance
V_KA = V_ref; f < 1 kHz
-
0.2
B-Grade (0.5 %): TL431BCDBZR; TL431BIDBZR; TL431BQDBZR; TL431BSDT; TL431BMSDT
V_ref
ΔV_ref
reference voltage
reference voltage variation
TL431BCDBZR
TL431BIDBZR
TL431BQDBZR
TL431BSDT
TL431BMSDT
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
2483
-
-
2495
6
14
ΔV_ref/ΔV_KA reference voltage variation
to cathode-anode voltage
variation ratio
I_K = 10 mA
ΔV_KA = 10 V to V_ref
ΔV_KA = 36 V to 10 V
-
−1.4
-
−1
I_ref
reference current
I_K = 10 mA;
-
2
R1 = 10 kΩ; R2 = open
Max
2520
16
34
−2.7
−2
4
1.2
2.5
0.6
0.7
0.5
0.5
2507
16
34
−2.7
−2
4
Unit
mV
mV
mV
mV/V
mV/V
μA
μA
μA
mA
mA
μA
Ω
mV
mV
mV
mV/V
mV/V
μA
TL431_FAM_2
Product data sheet
Rev. 02 — 20 January 2010
© NXP B.V. 2010. All rights reserved.
7 of 23