TDA16846-2G GEG Infineon Technologies, TDA16846-2G GEG Datasheet - Page 16
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TDA16846-2G GEG
Manufacturer Part Number
TDA16846-2G GEG
Description
IC POWER SUPPLY CONTROLLER DSO14
Manufacturer
Infineon Technologies
Datasheet
1.TDA16846-2G_GEG.pdf
(29 pages)
Specifications of TDA16846-2G GEG
Applications
Power Supply Controller
Voltage - Supply
8 V ~ 16 V
Current - Supply
5mA
Operating Temperature
-25°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
DSO-14
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
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
SP000081008
TDA168462GGEGXT
TDA168462GGEGXT
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