TDA16847-2 Infineon Technologies, TDA16847-2 Datasheet - Page 16

• Manufacturer Part Number: TDA16847-2
• Description: IC POWER SUPPLY CONTROLLER 14DIP
• Manufacturer: Infineon Technologies

Specifications of TDA16847-2

• Applications: Power Supply Controller
• Voltage - Supply: 8 V ~ 16 V
• Current - Supply: 5mA
• Operating Temperature: -25°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 14-DIP (0.300", 7.62mm)
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Input: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SP000013856; TDA168472X; TDA168472XK

TDA 16846/16846-2
TDA 16847/16847-2
3
Protection Functions
The chip has several protection functions:
Current Limiting
See “Primary Current Simulation PCS (Pin 2) / Current Limiting” and “Fold Back Point
Correction PVC (Pin 11)”.
Over- and Undervoltage Lockout OV/SVC (Pin 14)
When
V
at Pin 14 exceeds 16.5 V, e. g. due to a fault in the regulation circuit, the Error
14
V
Flip Flop ERR is set and the output driver is shut-down. When
goes below the lower
14
SVC threshold, ERR is reset and the driver output (Pin 13) and the soft-start (Pin 4) are
shut down and actively held low.
Primary Voltage Check PVC (Pin 11)
V
When the voltage
at Pin 11 goes below 1 V the Error Flip Flop (ERR) is set. E.g. a
11
voltage divider from the rectified mains at Pin 11 prevents high input currents at a too low
input voltage.
Free Usable Fault Comparator FC1 (Pin 10)
When the voltage at Pin 10 exceeds 1 V, the Error Flip Flop (ERR) is set. This can be
used e. g. for mains overvoltage shutdown.
Free Usable Fault Comparator FC2 (Pin 6)
When the voltage at Pin 6 exceeds 1.2 V, the Error Flip Flop (ERR) is set. A resistor
between Pin 9 (REF) and ground is necessary to enable this fault comparator.
Voltage dependent Ringing Suppression Time
During start-up and short-circuit operation, the output voltage of the converter is low and
parasitic zero crossings are applied for a longer time at Pin 3. Therefore the Ringing
Suppression Time TC1 (see “Off-Time Circuit OTC (Pin 1)”) is extended with a factor of
2.2 at a low output voltage. The voltage at pin 1 must not fall below the limit V
.
1L
Version 2.0
16
31 Jul 2003