ISL97673IRZ-TK Intersil, ISL97673IRZ-TK Datasheet
ISL97673IRZ-TK
Specifications of ISL97673IRZ-TK
Related parts for ISL97673IRZ-TK
ISL97673IRZ-TK Summary of contents
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... IN AGND CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. All other trademarks mentioned are the property of their respective owners 8-bit with equal phase Short Circuit, OUT (see page 26) > ...
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Block Diagram VIN = 4.5V~26V VIN VIN REG REG Bias VDC fsw OSC & RAMP Comp FPWM Dimming Controller COMP GM AMP + REF - RSET GEN REF_OVP GND REF_VSC SMBus/ SMBCLK(SCL) Phase Shift I2C Controller Control SMBDAT(SDA) SEL1 Dimming ...
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... PART (Notes 1, 2) MARKING ISL97673IRZ 7673 20 Ld 4x3 QFN ISL97673IRZ-EVAL Evaluation Board NOTES: 1. Add “-T” or “-TK” suffix for tape and reel. Please refer to details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach ...
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Table of Contents Typical Application Circuit ................................. 1 Block Diagram ................................................... 2 Pin Descriptions ................................................ 3 Absolute Maximum Ratings . . . . . . . . . . . . . . . . 5 Thermal Information . . ...
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... A Thermal Resistance (Typical QFN Package (Notes Thermal Characterization (Typical QFN Package (Note Maximum Continuous Junction Temperature . . . . . . +125°C Storage Temperature . . . . . . . . . . . . . . . -65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = +25° CONDITION ≤11 LEDs per channel (3.2V/20mA type) 4.5V < ...
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Electrical Specifications All specifications below are tested at T unless otherwise noted. Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued) PARAMETER DESCRIPTION BOOST SW Boost FET Current Limit ILimit r Internal Boost Switch ON-resistance DS(ON) SS ...
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Electrical Specifications All specifications below are tested at T unless otherwise noted. Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued) PARAMETER DESCRIPTION FPWM PWM Dimming Frequency Range tDIRECTPWM Direct PWM Minimum On Time FAULT PIN I ...
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Typical Performance Curves 100 24V 12V LED(mA) FIGURE 3. EFFICIENCY 20mA LED CURRENT (100% LED DUTY CYCLE 100 90 ...
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Typical Performance Curves 1.2 1.0 0.8 0 0.4 0 FIGURE 9. CURRENT LINEARITY vs LOW LEVEL PWM DIMMING DUTY CYCLE vs V FIGURE 11. V RIPPLE VOLTAGE, V OUT AT 20mA/CHANNEL FIGURE ...
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Typical Performance Curves FIGURE 15. LINE REGULATION WITH V FROM 26V TO 6V FOR 6P12S AT 20mA/CHANNEL FIGURE 17. LOAD REGULATION WITH I FROM 100 PWM DIMMING 12V, 6P12S AT 20mA/CHANNEL IN 10 ISL97673 (Continued) CHANGE ...
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Theory of Operation PWM Boost Converter The current mode PWM boost converter produces the minimal voltage needed to enable the LED stack with the highest forward voltage drop to run at the programmed current. The ISL97673 employs current mode control ...
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TABLE 1. SEL1 SEL2 OPERATING MODE High N/A Selectable by SMBus/I Float High PWMI, Fixed-Delay Phase Shift PWM Float Float PWMI, Equal-Phase Phase Shift PWM Float Low PWMI, No-Delay PWM Low High Not Used Low Float DC Current Adjustment Low ...
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Method 2 (External applied PWM) To use this mode users need to set Register 0x01 to 0x03 The average LED current of each channel can also be controlled by an external PWM signal as Equation 8: × PWM ...
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FPWM ILED0 OFF t PD ILED1 t PD ILED2 t PD ILED3 t PD ILED4 t PD ILED5 FIGURE 23. PHASE SHIFT WITH 7-BIT PROGRAMMABLE DELAY The ISL97673 allows the user to program the amount of ...
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There are three selectable levels of short circuit threshold (3.6V, 4.8V, and 5.85V) that can be programmed through the Configuration Register 0x08. When an LED becomes shorted, the action taken is described in Table 2. The default short circuit threshold ...
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VIN FAULT DRIVER IMAX ILIMIT VSET/2 REG FAULT/ STATUS REGISTER CASE FAILURE MODE DETECTION MODE 1 CH0 Short Circuit Upper Over-Temperature Protection limit (OTP) not triggered and CH0 < CH0 Short Circuit Upper OTP triggered but VCH0 < ...
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CASE FAILURE MODE DETECTION MODE 6 CH0 LED Open Upper OTP triggered Circuit but has but CH0 < 4V paralleled Zener 7 CH0 LED Open Upper OTP not Circuit but has triggered but CHx > paralleled Zener 4V 8 Channel-to- ...
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S Slave Address Master to Slave Slave to Master Slave Address W A Master to Slave Slave to Master Write Byte The Write Byte protocol is only three bytes long. The first byte ...
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ADDRESS REGISTER BIT 7 BIT 6 0x00 PWM BRT7 BRT6 Brightness Control Register 0x01 Device Control Reserved Reserved Register 0x02 Fault/Status Reserved Reserved Register 0x03 Si Revision 1 Register 0x07 DC Brightness BRTDC7 BRTDC6 Control Register 0x08 Configuration Reserved DirectPWM ...
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PWM Brightness Control Register (0x00) The Brightness control resolution has 256 steps of PWM duty cycle adjustment. The bit assignment is shown in Figure 29. All of the bits in this Brightness Control Register can be read or write. Step ...
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This register has two bits that control either SMBus/I controlled or external PWM controlled PWM dimming and a single bit that controls the BL ON/OFF state. The remaining bits are reserved. The bit assignment is shown in Figure 30. All ...
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... Bit 5 (R) BIT ASSIGNMENT = Manufacturer ID. See “Si Revision Register MFG[3..0] (0x03)” on page 21. data decimal correspond to other vendors data 9 in decimal represents Intersil ID data decimal are reserved data 15 in decimal Manufacturer ID is not implemented REV[2..0] = Silicon rev (Rev 0 through Rev 7 allowed for ...
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The Vsc bits allow users to set 3 levels of channel short-circuit thresholds or disable it. The bit assignment is shown in Figure 34. The default value for Register 0x08 is 0x1F. Output Channel Select and Fault Readout Register (0x09) ...
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REGISTER 0x0A PHASE SHIFT CONTROL REGISTER EQUAL PHASE- PHASE- PHASE SHIFT6 SHIFT5 Bit 7 (R/W) Bit 6 (R/W) Bit 5 (R/W) BIT ASSIGNMENT EqualPhase Controls phase shift mode - When 0, phase shift is defined by PhaseShift<6:0>. When 1, phase ...
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The series resistance, DCR, within the inductor causes ...
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... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries ...
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Package Outline Drawing L20.3x4 20 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 1, 3/10 3. PIN 1 INDEX AREA A TOP VIEW (2.65) (3.80) (1.65) (2.80) TYPICAL RECOMMENDED LAND PATTERN 27 ISL97673 A B 20X 4 4.00 0.15 ...