IC SMD CONTROLLER NCP1251A - NCP1251 - 1251 ORIGINAL

NCP1251
5ARX
5A2
5AA
5A2RZV
5AAXRN
5AAREI
5A2RCL
5A2RX0
5A2RDA
5A2RWN

Ic smd ini sering digunakan untuk regulator tv lcd/led model terbaru,
seperti:

LC-19LE150
LC-19LE155
LC-24LE100
LC-24LE107
LC-24LE150
LC-24LE155
LC-32LE100
LC-32LE107
LC-32LE185
LC-32LE175
LC-32LE150
LC-32LE155
LC-32LE260
LC-32LE265
LC-40LE840

Sebagai Controller berbentuk chip kecil dengan kemampuan yang besar.
Suport untuk berbagai merek tv

Mohon diskusikan sebelum memesan produk

Current-Mode PWM Controller for Off-line Power Supplies

The NCP1251 is a highly integrated PWM controller capable of
delivering a rugged and high performance offline power supply in a
tiny TSOP6 package. With a supply range up to 28 V, the controller
hosts a jittered 65 kHz or 100 kHz switching circuitry operated in peak
current mode control. When the power on the secondary side starts to
decrease, the controller automatically folds back its switching
frequency down to a minimum level of 26 kHz. As the power further
goes down, the part enters skip cycle while limiting the peak current.
Over Power Protection (OPP) is a difficult exercise especially when
noload standby requirements drive the converter specifications. The
ON proprietary integrated OPP lets you harness the maximum
delivered power without affecting your standby performance simply
via two external resistors. A latched Over Voltage Protection (OVP) is
combined on the same pin. For ease of implementation, a latched OVP
also monitors the VCC line. They offer an efficient protection in case
of optocoupler destruction or adverse open loop operation.
Finally, a timerbased shortcircuit protection offers the best
protection scheme, letting you precisely select the protection trip point
irrespective of a loose coupling between the auxiliary and the power
windings.