Datasheet

GATE
VCC
COMP
ZCD
ISNS
MODE2
AGND PGND
MODE1
DLY
TPS92310
SNVS792 –FEBRUARY 2012 www.ti.com
Connection Diagram
Top View
Figure 2. 10-Pin VSSOP
Pin Descriptions
Pin Name Description Application Information
1 VCC Power supply input This pin provides power to the internal control circuitry and gate driver.
Connect a 10µF capacitor from this pin to ground.
2 ZCD Zero crossing detection input The pin senses the voltage of the auxiliary winding for zero current
detection.
3 AGND Small signal ground Signal ground.
4 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.
5 DLY Delay control input Connect a resistor from this pin to ground to set the delay between
switching ON and OFF periods.
6 MODE2 Mode selection input 2 Select operating mode for isolated or non-isolated mode.
7 MODE1 Mode selection input 1 Select operating mode for peak current mode or constant ON time.
8 PGND Power ground Power ground. This pin must be connected to the AGND pin externally
for normal operation. This pin has no internal connection to PGND.
9 ISNS Current sense voltage feedback Switch current sensing input.
10 GATE Gate driver output Gate driving signal to the external switching MOSFET.
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