LDS8141-002-T2 IXYS, LDS8141-002-T2 Datasheet
LDS8141-002-T2
Specifications of LDS8141-002-T2
Related parts for LDS8141-002-T2
LDS8141-002-T2 Summary of contents
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... Keypad and Display Backlight Cellular Phone PDAs and Smartphones DESCRIPTION The LDS8161 is a 6-channel and the LDS8141 channel linear LED driver for WLED applications. It includes ultra low dropout LDO current regulators at a maximum 31.875 mA per channel in a common cathode high side driver topology ...
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... TYPICAL APPLICATION CIRCUITS ABSOLUTE MAXIMUM RATINGS Parameter V , LEDx IN EN, SDAT, SCLK, SADD voltage Storage Temperature Range Junction Temperature Range Soldering Temperature HBM ESD Protection Level MM © 2009 IXYS Corp. Characteristics subject to change without notice Rating Unit 0. -65 to +160 °C -40 to +125 ° ...
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... Note: 1. Vdx = Vin – Vdx = Vin – which I decreases by 10% from set value F ILED 3. Minimum LED forward voltage, which will be interpreted as “LED SHORT” condition © 2009 IXYS Corp. Characteristics subject to change without notice Rating Unit 2 – 31.875 mA 191.25 mA -40 to +125 ° ...
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... From reg. m, where Reg the last addressed in the write operation register Option 3: Random access with combined (extended) protocol: S Slave Address W A WRITE OPERATION: Option 1: Standard protocol sequencial write: S Slave Address W A © 2009 IXYS Corp. Characteristics subject to change without notice 2 Figure Bus Timing Diagram A Data 0 A Data 1 A Data 2 From: Reg. m Reg ...
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... Data: Data to read or write 8 bits - send by master - send by slave BUS PROTOCOL Standard protocol Combined protocol: WRITE INSTRUCTION SEQUENCE Standard protocol: Write Instruction Example - Setting 20mA Current in LEDB1 and LEDB2 © 2009 IXYS Corp. Characteristics subject to change without notice Register Address Slave Address Data A* P To: Reg ...
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... PWM code1[7:4], Δ PWM code0[3:0] – Δ PWM code13[7:4], Δ PWM code12[3:0] © 2009 IXYS Corp. Characteristics subject to change without notice BITS NOTES 8 8 Reg00h – Reg02h data code = (I converted into hex format ...
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... Factory Diagnostics 19h Only Only 0* 0* Note: *) Value by default © 2009 IXYS Corp. Characteristics subject to change without notice Silicon diode V temperature coefficient (K factor Factory recommended loaded value is 36h = -1.71 mV/°C = 001 10110 (bin), 8 where bits from bit 7 to bit 5 represent integer part [1(decimal) = 001 (bin)], and bits from bit 4 to bit 0 – ...
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... Table 7: T-code values vs. Temperature (for registers 4Ah & 4Bh) Temperature Bit4 – Temperature 0 C Bit 0 25 01100 30 01101 35 01110 40 01111 45 10000 © 2009 IXYS Corp. Characteristics subject to change without notice Configuration Register Bit 6 Bit 5 Bit 4 Bit 3 Factory Factory Factory Factory Only Only Only Only 0* 0* ...
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... Table 8 0010 0011 (bin) = 23h 2 YY – The LDS8160 I C customer-selected slave address followed by binary 0 for read command, i. 001 0001 (see Table 8 0010 0010 (bin) = 22h © 2009 IXYS Corp. Characteristics subject to change without notice Register 3 – 0 Address ...
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... LED anodes. These pins enter whenever the device is in shutdown mode. LEDC1 and LEDC2 are no connects (NC) for the LDS8141. PAD is the exposed pad underneath the package. For best thermal performance, the tab should be soldered to the PCB and connected to the ground plane TST is a test pin used by factory only ...
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... EN pin should be IN logic LOW at least until V reaches a 2.5 V level. IN When EN is taken HIGH, a soft-start power-up sequence begins and performs an internal circuits reset that requires less than 100 µs. © 2009 IXYS Corp. Characteristics subject to change without notice VIN Vin OverTemp Drivers Calibrated ...
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... User Loads Ex: 3Fh = all 14 03h 15 05h User Loads Ex: FEh = 91% DC © 2009 IXYS Corp. Characteristics subject to change without notice e) Soft start-up PWM ramp feature enabled; If the factory default loaded de-rating curve is used as shown in Figure 7, identifies the necessary registers and initialization required after the power-up or reset state to operate the LDS8161/41 ...
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... C INTERFACE”). (~ -80 dB dimming) at 00h. accessible slave LED-Sense The LDS8161/41 integrates the IXYS LED-Sense temperature measurement and high temperature current de-rating algorithm to insure LED reliability /0.125 mA LED and operating lifetimes. LED current is de-rated via reductions in PWM duty cycle to meet LED vendor power dissipation vs. LED junction temperature specifications ...
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... C temperature intervals from -35 to +120 The measured T-code value addresses the stored Δ PWM de-rating codes stored in the LUT registers to © 2009 IXYS Corp. Characteristics subject to change without notice adjust the PWM duty cycle. Therefore this reduces the av erage current through the LEDs as defined by the LUT table. The user loads specific Δ ...
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... DC current, LED driver channels can be connected in parallel. For example, ½ watt, 150 mA LEDs can be driven with the LDS8161 by paralleling all 6 channels with 25 mA per channel. Likewise, the LDS8141 can drive up to 127 connecting all 4 channels in parallel at the maximum 31.875 mA per channel. LED short/open protection The LDS8161/41 runs a LED short/open diagnostic routine upon the power up sequence ...
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... To set LDS8161/41 into the shutdown mode, the EN pin should be logic low more than 10 ms. The LDS8161/41 shutdown current is less than 1 µA. © 2009 IXYS Corp. Characteristics subject to change without notice The LDS8161/41 wakes up from shutdown mode with factory-preset default data. To preserve customer- programmed data, use Normal standby mode ...
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... L 0.325 0.375 m 0.150 typ n 0.225 typ Note: 1. All dimensions are in millimeters 2. Complies with JEDEC Standard MO-220 © 2009 IXYS Corp. Characteristics subject to change without notice MAX 0.80 0.05 0.228 0.30 3.05 1.75 3.05 1.75 0.425 17 Doc. No. 8141/61_DS, Rev. N1.0 ...
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... LDS8161/41 ORDERING INFORMATION Part Number LDS8161 002-T2 TQFN- 3mm LDS8141 002-T2 TQFN- 3mm Notes: 1. Matte-Tin Plated Finish (RoHS-compliant) 2. Quantity per reel is 2000 EXAMPLE OF ORDERING INFORMATION Prefix LDS Optional Company ID Notes: 1) All packages are RoHS-compliant (Lead-free, Halogen-free). 2) The standard lead finish is Matte-Tin. ...
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... IXYS Corp. Characteristics subject to change without notice 32 20 -41.9 99. -41.4 99. -40.9 99. -40.5 99. -40.1 99. -39.6 98. -39.2 98. -38.9 98. -38.5 98. -38.2 98. -37.8 98. -37.5 98. -37.2 98. -36.9 98.56 ...
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... IXYS Corp. Characteristics subject to change without notice 80 -22.9 92.80 160 81 -22.7 92.60 161 82 -22.5 92.41 162 83 -22.2 92.21 163 84 -22 92.02 164 85 -21 ...
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... DC -6.4 51.59 252 221 DD -6.2 50.81 253 222 DE -6.1 50.02 254 223 DF -6 49.24 255 © 2009 IXYS Corp. Characteristics subject to change without notice E0 -5.7 47.68 E1 -5.4 46.12 E2 -5.2 44.56 E3 -4.9 42.99 E4 -4.7 41.43 E5 -4.5 39.87 E6 -4.3 38.31 ...
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... IXYS Corp. products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the IXYS Corp. product could create a situation where personal injury or death may occur. ...