lx1689 Microsemi Corporation, lx1689 Datasheet
lx1689
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lx1689 Summary of contents
Page 1
... Shown in Figure 1 (Typical Application) T (° - Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1689CPW-TR) Copyright © 2000 Rev. 1.1, 2006-02-27 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Third Generation CCFL Controller ® ...
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... BRITE_C 7 14 +0.5V BRITE_R 8 13 BRITE_IN ENABLE PW P ACKAGE (Top View) RoHS / Pb-free 100% Matte Tin Lead Finish supply. LDO output is normally 5.3V _BATT supply. LDO output is normally _BATT LX1689 VDD_P VDD_A V_BATT OC_SNS OV_SNS I_SNS BRITE_OUT EA_OUT EA_IN I_R Page 2 ...
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... A/B outputs. In the strike mode lamp current is detected after 15 attempts a fault is likewise declared. ( See further LX1689 operation section) Copyright © ...
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... BRITE Filter Capacitor and FAULT Output. Used to convert higher frequency digital PWM inputs to proportional DC currents at the BRITE_OUT pin. The capacitor forms a low pass filter with an internal 200K resistor. This pin will be driven to VDD_A if a lamp fault is detected by the LX1689 fault is present the voltage at this pin BRITE_C will vary from 50mV to 1 ...
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... BRITE_IN Linear DC Voltage Range BRITE_IN PWM Logic Signal Voltage Range Digital Inputs (DIM_MODE, DIV_248,DIM_CLK) Maximum Output Gate Charge ( OUT Unless otherwise specified, the following specifications apply over the operating ambient temperature: LX1689CPW: 0 ° C ≤ ≤ LX1689IPW: -40°C T 85°C, except where otherwise noted. ...
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... V Reverse Dimming TL_DIM_CLK I DIM_CLK = 5V IH_DIM_CLK I DIM_CLK = 0V IL_DIM_CLK V TL_TRI_ V TF_TRI V TH_TRI I DIM_MODE = DIV_248 = 5V IH_TRI I DIM_MODE = DIV_248 = 0V IL_TRI Microsemi Integrated Products LX1689 RODUCTION ATA HEET LX1689 Min Typ Max 250 450 0.1 254 127 63.5 = 25°C 0.95 1.0 1.05 A 100 700 1.99 2 2.01 90 180 ...
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... OC_SNS = 10V OC_SNS IIN OC_SNS = -10V I_SNS = 0.3VDC 25°C A I_SNS = 2.0VDC 25°C A I_SNS RMS I_SNS = -0.3VDC 25°C A I_SNS = -2.0VDC 25°C A Microsemi Integrated Products LX1689 D S RODUCTION ATA HEET LX1689 Min Typ Max - 100 0.96 1.04 1.12 0.94 1.04 1.14 0.98 1.06 1.14 0.96 1.06 1. 120 2 10 ...
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... COUNTER & POW RESET LOGIC DIGITAL DIM ANALOG DIM RAMP GENERATO – Simplified Block Diagram IGURE Microsemi Integrated Products LX1689 RODUCTION ATA HEET OUTPUT DRIVERS BLOCK AO UT BOUT EA_OUT + - ERROR AMP EA_IN LAMP FEEDBACK CONDITIONING BLOCK ...
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... BRITE_R EA_OUT 6.65 BRITE_IN EA_IN ENABLE I_R LX1689CPW F 2 – LX1689 Typical 1W Application IGURE DIM_CLK DIMMING MODE External Burst External Clock Source Dimming from divided DIM_CLK input VDD_A Analog Dimming GND Analog Dimming ...
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... Copyright © 2000 Rev. 1.1, 2006-02-27 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Third Generation CCFL Controller ® – Typical Dual 4 Watt Application F IGURE Microsemi Integrated Products LX1689 RODUCTION ATA HEET + + x x Page 10 ...
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... Strike potential is removed immediately when the lamp strikes or if the time limit is reached. Strike Detection The LX1689 includes a new lamp strike detection scheme that In addition, the saves a package pin and three external components. Internal circuits monitor lamp current pulses at the I_SNS input to determine if the lamp strikes and if it stays ignited once operational ...
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... TM LX1689 OPERATION Four operating modes: Power On Delay, Strike, Run, and Fault modes are employed by the LX1689. Upon power up or ENABLE going true, Power On Delay is automatically invoked. Immediately after termination of Power On Delay, or ENABLE going true, strike mode is entered. After a successful strike, e.g. lamp is ignited, run mode is entered. If ignition is unsuccessful the lamp extinguishes while running, Fault mode is entered ...
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... L L Θ1 c *LC * Lead Coplanarity Note: 1. Dimensions do not include mold flash or protrusions; these shall not exceed 0.155mm(.006”) on any side. Lead dimension shall not include solder coverage. Microsemi Integrated Products LX1689 D S RODUCTION ATA HEET / I ( BRITE_OUT OUT RMS BRITE_R resistor ...
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... Microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time. Copyright © 2000 Rev. 1.1, 2006-02-27 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 Third Generation CCFL Controller ® P RODUCTION Microsemi Integrated Products LX1689 D S ATA HEET Page 14 ...