瀹為檯搴旂敤涓璒V_SNS鐢靛帇鍦ㄨ璋冭妭鐘舵�佷笅鐨勭洰鏍囪寖鍥存槸卤1.97V锛堝姞0.2V鐩存祦鍋忕疆鍚庣害2.17V锛夛紝鍏佽卤8%璇樊銆傚綋鐏鑰佸寲鏂矾鏃禣V_SNS鐢靛帇杩呴�熸攢鍗囪嚦3.2V浠ヤ笂锛岃姱鐗囪鏁板櫒杩呴�熻婊★紝鎺у埗鍣ㄧ珛鍗宠繘鍏ユ晠闅滈攣瀛樻ā寮忓苟灏咥OUT/BOUT椹卞姩鍏ㄩ儴鍏虫柇銆�
Route the trace from the feedback network to Pin 5 away from the high-frequency switching lines of the power MOSFETs to avoid induced noise injection. Share public link
鍦ㄦ恫鏅舵樉绀哄櫒锛圠CD锛夌殑鏃朵唬锛屽喎闃存瀬鑽у厜鐏紙CCFL锛夋浘鏄睆骞曠殑缁濆涓诲锛岃�岄┍鍔ㄨ繖浜涚伅绠＄殑寰帶鍒跺櫒鍒欐槸鏁存満鎶�鏈殑鍏抽敭涓�鐜�傚湪浼楀椹卞姩鏂规涓紝Microsemi鍏徃鎺ㄥ嚭鐨凩X1692绯诲垪鍑�熷叾銆� 涓夐噸鏁呴殰淇濇姢鏈哄埗 浠ュ強瀹芥硾鐨勮皟鍏夋帶鍒舵柟妗堬紝鎴愪负浜哃CD鐢佃鍜屾樉绀哄櫒鐢垫簮妯″潡涓殑鏄庢槦鑺墖銆� lx1692 protection pin
During display repairs, a faulty CCFL bulb can make it difficult to determine whether the inverter board or the display glass is causing the system to fail. Temporarily overriding the C_TO pin keeps the inverter active so you can scope out high-voltage performance. Overriding Method Component Needed Board Connection 4.7k惟 to 10k惟 Resistor Connect C_TO pin directly to GND
Connects to an external capacitor to program the "strike" time and fault timeout period. ISNS (Current Sense): Overriding Method Component Needed Board Connection 4
Catches high-voltage localized arcs that could damage the PCB layout. The Role of the Time-Out (C_TO) Pin
: The IC includes safety circuits that monitor the transformer secondary voltage. If a lamp fails or the voltage spikes, the protection circuit triggers a shutdown to prevent damage. Protection Pin Number : For the LX1692, the If a lamp fails or the voltage spikes,
+4V internal LDO (VDDA) 鈹� 鈻� (Internal Current Source) 鈹� 鈹屸攢鈹�鈹�鈹�鈹粹攢鈹�鈹�鈹�鈹� 鈹� Pin 4 鈹傗攢鈹�鈹�鈹� 鈹� (C_TO) 鈹� 鈹� 鈹斺攢鈹�鈹�鈹�鈹�鈹�鈹�鈹�鈹�鈹� 鈻� 鈹� [External Cap] 鈹� 鈹� 鈻� 鈹� GND [Fault Latch Logic]
LX1692鐨勯攣瀹氱姸鎬佹槸涓嶅彲鑷仮澶嶇殑銆傛墍鏈夎Е鍙戠殑鏁呴殰閿佸瓨鍙兘閫氳繃涓ょ鏂瑰紡瑙ｉ櫎锛氬皢ENABLE寮曡剼鎷変綆鍚庡啀鎷夐珮锛岄噸鏂版墽琛屼笂鐢靛垵濮嬪寲娴佺▼锛涙垨瀹屽叏鍒囨柇VDDP渚涚數鍚庡啀鎭㈠渚涚數銆�
This pin uses an external resistor and capacitor to monitor the bridge power supply. It provides rapid response to line voltage transients and prevents transformer saturation by adjusting the timing ramp for open-lamp voltage regulation.