Datasheet

1
4
3
2
16
13
14
15
NC
DLY
GND
COMP
MODE2
MODE1
5 12
ZCD
ISNS
11
NC
NC
VIN
GND
10
8 9
SW
SW
6
7
SW
SW
TPS92311
SNVS811B –MAY 2012–REVISED MAY 2013 www.ti.com
Connection Diagram
Top View
Figure 2. 16–Lead Narrow SOIC package
PIN DESCRIPTIONS
Pin Name Description Application Information
1, 2, 15, 16 SW Drain Internal power MOSFET drain pin
3, 7, 14 NC No Connection No connection pin
4 ZCD Zero crossing detection input The pin senses the voltage of the auxiliary winding for zero
current detection.
5, 12 GND Ground Circuit ground.
6 VIN Power supply Input This pin provides power to the internal control
8 COMP Compensation network Output of the error amplifier. Connect a capacitor from this pin to
ground to set the frequency response of the LED current
regulation loop.
9 DLY Delay control input Connect a resistor from this pin to ground to set the delay
between switching ON and OFF periods.
10 MODE2 Mode selection input 2 Select operating mode for isolated or non-isolated mode.
11 MODE1 Mode selection input 1 Select operating mode for peak current mode or constant ON
time.
13 ISNS Current sense voltage feedback Switch current sensing input.
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