TL431C Datasheet, PDF (3/16 Pages) NXP Semiconductors – Adjustable precision shunt regulators

Philips Semiconductors
Adjustable precision shunt regulators
Product specification
TL431C, TL431AC, TL431I,
TL431AI, LM431AC
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
V_KA
Cathode voltage (see Note 1)
Continuous cathode current range
Reference input current range
T_amb
Operating free-air temperature range
C suffix
I suffix
T_STG
Temperature storage range
Lead temperature 1.6mm (1/16 in.) from case for 10 sec: D or P pkgs
Lead temperature 1.6mm (1/16 in.) from case for 60 sec: LP pkg
NOTE:
1. Voltage values are with respect to the anode terminal unless otherwise noted.
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
V_KA
Cathode voltage
I_K
Cathode current
RATING
37
–100 to +150
0.05 to 10
0 to +70
–40 to +85
–65 to 150
260
300
MIN
V_REF
1
MAX
36
100
UNITS
V
mA
mA
°C
°C
°C
°C
°C
UNITS
V
mA
Table 1. Dissipation Rating Table – Free-Air Temperature
Package
Derating Factor Above T_amb
= 25°C
T_amb = 25°C
Power Rating
D
5.8mW/°C
725mW
LP
6.2mW/°C
775mW
P
8.0mW/°C
1000mW
T_amb = 70°C
Power Rating
464mW
496mW
640mW
T_amb = 85°C
Power Rating
429mW
403mW
520mW
CATHODE
REF
ANODE
R4
800
Q5
Q4
R5
3.28K
R11
2.4K
Q11
QD6
Q7
R7
320
R10
7.2K
C2
20p
Q9
Q10
R9
800
R8
1000
R3
800
C1
20p
Q3
Q2
Q1
R2
150
R1
10K
Q8 QD2
Figure 2. Equivalent Schematic
Qq1
SL01188
1997 Feb 25
3