TLV431ALPRAG ON Semiconductor, TLV431ALPRAG Datasheet - Page 10

• Manufacturer Part Number: TLV431ALPRAG
• Description: IC REG SHUNT LV PREC 1.24V TO-92
• Manufacturer: ON Semiconductor

Specifications of TLV431ALPRAG

• Reference Type: Shunt, Adjustable
• Voltage - Output: 1.24 ~ 6 V
• Tolerance: ±1%
• Temperature Coefficient: 129ppm/°C
• Voltage - Input: 1.24 ~ 6 V
• Number Of Channels: 1
• Current - Cathode: 55µA
• Current - Output: 15mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: TO-92-3 (Standard Body), TO-226
• 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: Through Hole
• Shunt Current (min): 0.08 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Quiescent: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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