LM3559TLE/NOPB National Semiconductor, LM3559TLE/NOPB Datasheet
LM3559TLE/NOPB
Specifications of LM3559TLE/NOPB
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LM3559TLE/NOPB Summary of contents
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... The device is available in a ultra-small 16-bump (1.97mm x 1.97mm x 0.6mm) micro SMD package and operates over the -40°C to +85°C temperature range. Typical Application Circuit © 2011 National Semiconductor Corporation LM3559 Features ■ Dual High-Side Current Sources Allow for Grounded Cathode LED Operation ■ ...
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Application Circuit Component List Component Manufacturer L Toko CIN/COUT Murata LEDs Lumiled Connection Diagram 16-Bump 1. 1. 0.6 mm micro SMD Package TLA16 Ordering Information Order Number LM3559TLE LM3559TLX www.national.com Value Part Number 1µH FDSD0312-1R0 10 ...
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Pin Descriptions Pin Name A1 LED1 High Side Current Source Output for Flash LED1. A2, B2 OUT Step-Up DC/DC Converter Output. Connect a 10 µF ceramic capacitor between this pin and GND. A3 Drain Connection for Internal NMOS ...
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... Resistance (θ max (Note -0.3V to +6V ESD Caution Note: National Semiconductor recommends that all integrated cir- Internally Limited cuits be handled with appropriate ESD precautions. Failure to +150°C observe proper ESD handling techniques can result in dam- -65°C to +150°C age to the device. ...
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Symbol Parameter Switch Current I CL Limit (Note 8) Output Short- I Circuit Current OUT_SC Limit I Indicator Current LEDI/NTC Comparator Trip V TRIP Threshold Switching f SW Frequency Quiescent Supply I Q Current Shutdown Supply I SHDN Current Standby ...
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... Thermal shutdown is guaranteed by design. J Note 4: For detailed soldering specifications and information, please refer to National Semiconductor Application Note 1112: Micro SMD Wafer Level chip Scale Package (AN-1112) Note 5: In applications where high power dissipation and/or poor package thermal resistance is present, the maximum ambient temperature may have to be derated ...
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Typical Performance Characteristics FDSD0312-1R0 mΩ), Typical Application Circuit, unless otherwise noted. L LED Efficiency vs VIN Dual LED's (Flash Brightness Codes 0xBB - 0xFF) LED Efficiency vs VIN Dual LED's (Torch Brightness Codes 0x0F - 0xCF) Closed ...
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Closed loop Current Limit vs V Flash Duration Register bits [6:5]=10 Standby Current Enable Register = 0x18 HWEN IN Non-Switching Current vs V www.national.com Closed loop Current Limit (Note 8) Flash Duration ...
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Switching Frequency 30102863 Indicator Current Indicator Register Bits [2:0] = 0x02 30102868 I (Flash Mode LED IN LED1 and LED2 Connected Together (Upper 5 Flash Brightness Codes) 30102872 Indicator Currents vs V ...
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I (Torch Mode LED LED1 and LED2 Connected Together (Upper 4 Torch Brightness Codes) STROBE High to Flash LED Current VIN Flash Monitor Operation www.national.com IN LED1 and LED2 Connected Together (Lower 4 Torch Brightness Codes) 30102874 30102877 ...
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AET Mode Operation TX1 Interrupt (Force Torch) HWEN Operation Device Enabled in Flash Mode 30102878 TX2 Interrupt (Force Shutdown) TX2 Active High 30102880 11 30102879 30102881 www.national.com ...
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Block Diagram www.national.com 12 30102805 ...
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Overview The LM3559 is a high-power white LED flash driver capable of delivering up to 1.8A of LED current into a single LED 900 mA into two parallel LEDs. The device incorporates a 2MHz constant frequency, synchronous ...
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FIGURE 1. LED Current for STROBE (Level Triggered, Enable Register Bit [ STROBE Goes Low Before the End of the Programmed Timeout Duration FIGURE 2. LED Current for STROBE (Edge Triggered, Enable Register Bit [ After ...
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The intensity of the LEDs in privacy indicate mode is set by PWM’ing the lowest Torch current level ...
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HARDWARE TORCH With Configuration Register 1 Bit [ TX1/TORCH is con- figured as a hardware Torch mode enable. In this mode (TORCH mode), a high at TX1/TORCH turns on the LED cur- rent at the programmed Torch current ...
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Flash current level. During a flash event, if TX2 is active, the LED current sources will still turn off after the Flash timeout. Figure 4 details the functionality of the TX2 Interrupt. TX2 Shutdown TX2 also ...
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Number of periods (PERIOD #). This has 8 steps. A period ( found by (t PERIOD PERIOD t ). (See Figure 7 for indicator timing). PULSE 3. Ramp times ( for turn-on and turn-off ...
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With Configuration Register 2 bit [1] set to ‘1’ the NTC interrupt will force the LED current into shutdown. Whether in NTC force torch or NTC shutdown, in order to re- enter flash mode or torch mode after an ...
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VIN FLASH MONITOR (FLASH CURRENT RISING) A second comparator available to monitor the input voltage during the flash current turn-on. Bit [3] of the VIN Monitor Register enables/disables this feature. With this bit set to ‘1’ the ...
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LED VOLTAGE MONITOR The LM3559 includes a 4-bit ADC which monitors the LED forward voltage (VLED) and stores the digitized value in bits [3:0] of the VLED Monitor Register. The highest voltage of VLED1 or VLED2 is automatically sensed and ...
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FLAGS REGISTER AND FAULT INDICATORS Eight fault flags are available in the LM3559. These include: a Flash Timeout, a Thermal Shutdown, an LED Failure Flag (LEDF), an LED Thermal Flag (NTC), a VIN Monitor Flag, and a VIN Flash Monitor ...
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LED Fault Flag is triggered LED short condition there is a 250 µs deglitch time before the LED Fault Flag is set. The LED Fault Flag can only be reset to (0) by pulling HWEN low, doing a ...
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I C-COMPATIBLE CHIP ADDRESS The device address for the LM3559 is 1010011 (0xA7 for read and 0xA6 for write)). After the START condition, the I ter sends the 7-bit address followed by an eighth read or write bit (R/W). ...
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Register Descriptions Register Name Enable Privacy Indicator Indicator Blinking Privacy PWM GPIO VLED Monitor (ADC) ADC Delay VIN Monitor Last Flash Torch Brightness Flash Brightness Flash Duration Flags Configuration 1 Configuration 2 ENABLE REGISTER Bits [1:0] of the Enable Register ...
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TORCH BRIGHTNESS REGISTER Bits [2:0] of the Torch Brightness Register set the Torch cur- rent for LED1. Bits [5:3] set the Torch current for LED2. (see Table 3). Bit 7 Bit 6 (N/A) (N/A) (Not Used) LED2 Torch Current Select ...
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FLASH DURATION REGISTER Bits [4:0] of the Flash Duration Register set the Flash Timeout duration. Bits [6:5] set the switch current limit. (see TABLE 5. Flash Duration Register Descriptions Bit 7 Bit 6 Bit 5 (Not used) (CL1) (CL0) N/A ...
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FLAGS REGISTER The Flags Register holds the flag bits indicating: Flash Time- out, Thermal Shutdown, LED Fault (Open or Short), TX In- terrupts (TX1 and TX2), LED Thermal Fault (NTC), VIN Bit 7 Bit 6 (V Monitor) (VIN Flash (NTC ...
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CONFIGURATION REGISTER 2 Configuration Register 2 holds the TX2 shutdown select bit, the NTC shutdown select bit, the Alternate External Torch TABLE 8. Configuration Register 2 Bit Descriptions Bit 7 Bit 6 Bit 5 (Not used) (Not used) (Not used) ...
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GPIO REGISTER The GPIO register contains the control bits which change the state of the TX1/TORCH/GPIO1 pin and the TX2/INT/GPIO2 pins to general purpose I/O’s (GPIO’s). Additionally, bit 6 of this register contains the interrupt configuration bit. describes the bit ...
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LAST FLASH REGISTER The Last Flash Register is a read only register which is loaded with the flash code corresponding to the flash level that the LM3559 was at if any of the following events happens: 1. Voltage at LEDI/NTC ...
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VLED MONITOR REGISTER The VLED Monitor Register controls the internal 4-bit analog to digital converter. Bits [3:0] of this register contain the 4-bit data of the LED voltage. This data is the digitized voltage of the highest of either VLED1 ...
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ADC DELAY REGISTER The ADC Delay Register programs the delay from when the EOC bit goes low to when a conversion is initiated. This delay Bit 7 Bit 6 Bit 5 (No Delay) (Not (Not used) Used Delay ...
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PRIVACY PWM PERIOD REGISTER The Privacy PWM Register contains the bits to control the PWM period for the privacy indicate mode (see Bits 7-3 (Not Used) INDICATOR REGISTER The Message Indicator Register contain the bits which control the following: 1. ...
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INDICATOR BLINKING REGISTER The Indicator Blinking Register contain the bits which control the following: 1. Number of periods ( PERIOD RAMP Bit 7 (M4) Bit 6 (M3) Bit 5 (M2) BLANK# 0000 = 0 (default) 0001 = 1 ...
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Applications Information OUTPUT CAPACITOR SELECTION The LM3559 is designed to operate with at least a 10 µF ce- ramic output capacitor. When the boost converter is running the output capacitor supplies the load current during the boost converters on-time. When ...
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Manufacturer L TDK 1µH TDK 2.2 µH NTC THERMISTOR SELECTION Programming bit [4] of Configuration Register 1 with a (1) se- lects NTC mode and makes the LEDI/NTC pin a comparator input for flash LED thermal sensing. Figure 19 LM3559 ...
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FIGURE 20. Thermistor Resistive Divider Response vs Temperature Layout Recommendations The high switching frequency and large switching currents of the LM3559 make the choice of layout important. The follow- ing steps should be used as a reference to ensure the ...
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Physical Dimensions inches (millimeters) unless otherwise noted TLA1611A: 16-Bump micro SMD X1 = 1.97 mm (±0.03mm 1.97 mm (±0.03mm) ,X3 = 0.6 mm (±0.075 mm) 39 www.national.com ...
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