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LX1692IPW Datasheet(PDF) 2 Page - Mitsumi Electronics, Corp. |
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LX1692IPW Datasheet(HTML) 2 Page - Mitsumi Electronics, Corp. |
2 / 15 page LX1692 PRODUCTION DATA SHEET Microsemi Integrated Products Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Page 2 Copyright © 2004 Rev. 1.1, 2/9/2006 Full Bridge Resonant CCFL Controller TM ® ABSOLUTE MAXIMUM RATINGS Supply Input Voltage(VDDP)............................................................................................. 6.6V VIN_SNS .........................................................-0.3V to (VDDP+0.5V), not to exceed +6.6V Digital Input (ENABLE) ................................... -0.3V to (VDDP+0.5V) , not to exceed +6.6V Analog Inputs (ISNS, OV_SNS, OC_SNS)clamped to ±14V Max Peak Current ±100mA Analog Inputs (BRITE_A, BRITE_D) ............. -0.3V to (VDDP +0.5V) , not to exceed +6.6V Digital Outputs (AOUT, BOUT, COUT, DOUT) -0.3V to (VDDP +0.5V) , not to exceed +6.6V Analog Outputs (I_R, ICOMP, VCOMP)........ -0.3V to (VDDP + 0.5V) , not to exceed +6.6V Maximum Operating Junction Temperature .....................................................................150°C Storage Temperature Range....................................................................................-65 to 150°C Peak Package Solder Reflow Temp.(40 seconds max. exposure) .........................260°C(+0, -5) Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of specified terminal . TH ERMAL DATA DW Plastic SOIC 20-Pin THERMAL RESISTANCE -JUNCTION TO AMBIENT, θ JA 85 °C/W PW Plastic TSSOP 20-Pin THERMAL RESISTANCE -JUNCTION TO AMBIENT, θ JA 99 °C/W Junction Temperature Calculation: TJ = TA + (PD x θJA). The θ JA numbers are guidelines for the thermal performance of the device/pc-board system. All of the above assume no ambient airflow. PACKAGE PIN OUT C_R I_R C_BST C_TO VDDA ENABLE BRITE_D ICOMP VIN_SNS OC_SNS OV_SNS ISNS DOUT COUT BOUT AOUT 1 10 11 20 VCOMP BRITE_A GND VDDP PW PACKAGE (Top View) 1 10 11 20 9 8 7 6 5 4 3 2 12 13 14 15 16 17 18 19 C_R I_R C_BST C_TO VDDA ENABLE BRITE_D ICOMP VCOMP BRITE_A VIN_SNS OC_SNS OV_SNS ISNS DOUT COUT BOUT AOUT GND VDDP DW PACKAGE (Top View) RoHS / Pb-free 100% Matte Tin Lead Finish FUNCTIONAL PIN DESCRIPTION Name Description C_R Lamp Frequency Programming Capacitor Pin – lamp running frequency is set by the combination of C_R and I_R. The internal lamp current oscillator frequency can be forced to follow an external clock signal at this pin. In this case, the programmed frequency must be lower than the external frequency. Minimum pulse width for external synch signal is 1µsec. Maximum duty is 50% I_R Current Reference Resistor Input. Connects to an external resistor that determines the magnitude of internal bias currents. The I_R pin is a DC reference voltage of 1V. This voltage cannot be used for other than its intended function. The reference current established at this pin by connecting an external resistor is used to charge a capacitor at the C_R pin. The nominal lamp frequency can be adjusted by varying this resistor value in the range of 20K to 100K Ohms. (Note: C is in pF, R is in Ω K , Freq is in KHz). R _ I R _ C 3 LAMP R C 10 242 F ⋅ × = Other reference currents derived from I_R are used for the digital dimming burst oscillator and the strike time out function. |
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