TLV431ASN1T1G ON Semiconductor, TLV431ASN1T1G Datasheet - Page 10

• Manufacturer Part Number: TLV431ASN1T1G
• Description: IC REG SHUNT ADJ 1.24V SOT23
• Manufacturer: ON Semiconductor

Specifications of TLV431ASN1T1G

• Reference Type: Shunt, Adjustable
• Voltage - Output: 1.24 ~ 16 V
• Tolerance: ±1%
• Number Of Channels: 1
• Current - Cathode: 55µA
• Current - Output: 20mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
• Product: Voltage References
• Topology: Shunt References
• Output Voltage: Adjustable
• Initial Accuracy: 1 %
• Series Vref - Input Voltage (max): 18 V
• Shunt Current (max): 20 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Shunt Current (min): 0.08 mA
• Fixed / Adjust / Prog: Adjust
• Output Voltage (max): 1.24 to 16V
• Reference Voltage Accuracy (max): 1
• Input Voltage (max): 18V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 3
• Package Type: SOT-23
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Input: -
• Temperature Coefficient: -
• Current - Quiescent: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: TLV431ASN1T1GOS; TLV431ASN1T1GOS; TLV431ASN1T1GOSTR

The above circuit shows the TLV431A/B as a compensated amplifier controlling the feedback loop of an isolated output line
powered switching regulator. The output voltage is programmed to 3.3 V by the resistors values selected for R1 and R2. The
minimum output voltage that can be programmed with this circuit is 2.64 V, and is limited by the sum of the reference voltage
(1.24 V) and the forward drop of the optocoupler light emitting diode (1.4 V). Capacitor C1 provides loop compensation.
ALYWWG
1
TO−92
TLV43
1XXX
G
2 3
AC Input
1. Reference
2. Anode
3. Cathode
Figure 31. Isolated Output Line Powered Switching Power Supply
Gate Drive
Controller
GND
Current
Sense
XXX
A
Y
L
WW, W = Work Week
G
(Note: Microdot may be in either location)
V
V
CC
FB
PIN CONNECTIONS AND DEVICE MARKING
= Specific Device Code
= Assembly Location
= Year
= Wafer Lot
= Pb−Free Package
Cathode
NC
NC
http://onsemi.com
1
2
3
(Top View)
TSOP−5
10
5
4
Anode
Reference
XXX
M
G
(Note: Microdot may be in either location)
Reference
100
Cathode
= Specific Device Code
= Date Code
= Pb−Free Package
C1
0.1 mF
SOT−23−3
1
2
(Top View)
R1
3.0 k
R2
1.8 k
3
DC Output
3.3 V
Anode