ISL97644 Intersil Corporation, ISL97644 Datasheet
ISL97644
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ISL97644 Summary of contents
Page 1
... LCD Monitors (15”+) • Notebook Display (up to 16”) Ordering Information PART NUMBER (Note) 19 ISL97644IRZ LX 18 ISL97644IRZ-T 97644IRZ - 4x4 QFN VIN_2 17 ISL97644IRZ-TK 97644IRZ - 4x4 QFN FREQ 16 COMP NOTE: Intersil Pb-free plus anneal products employ special Pb-free 15 material sets; molding compounds/die attach materials and 100% matte ...
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... VIN_2 ENABLE PGND VGH 2 ISL97644 Ground Gate Pulse Modulation Output Gate Pulse Modulation Control Input Gate Pulse Modulation Enable Gate Pulse Modulation Lower Voltage Input V Amplifier Supply COM V Amplifier Output COM V Amplifier Inverting Input COM V Amplifier Noninverting Input ...
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... Line Regulation VDD IN ACC Overall Accuracy (Line, Load, AVDD Temperature) 3 ISL97644 Thermal Information Thermal Resistance 4x4 QFN Package (Notes Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves Maximum Continuous Junction Temperature . . . . . . . . . . . . 125°C Power Dissipation ≤ 25° .2.44W ...
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... Power Supply Rejection Ratio VOH Output Voltage Swing High VOH Output Voltage Swing High VOL Output Voltage Swing Low VOL Output Voltage Swing Low 4 ISL97644 = ENABLE = 5V, VDD1 = VDD2 = 14V, VGH = 25V, AVDD = 10V, T IN2 TEST CONDITION I = 100mA 25°C LOAD 100mA -40° ...
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... DIS_VGH T DELAY Time (Note 2) DEL NOTES: 1. Nominal discharge current = 300/(RE+5kΩ). 2. Nominal delay time = 4000*CE. 5 ISL97644 = ENABLE = 5V, VDD1 = VDD2 = 14V, VGH = 25V, AVDD = 10V, T IN2 TEST CONDITION -3dB gain point VFLK = 33kΩ, VFLK = VDD1 CE = 470pF 33kΩ = -40°C to 85°C ...
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... OUTPUT, 350mA 3.2 3.1 3.0 2.9 2.85V OUTPUT, 100mA 2.8 2.85V OUTPUT, 350mA 2.7 2.6 2.5V OUTPUT, 350mA 2.5V OUTPUT, 100mA 2.5 2 (V) IN FIGURE 5. LINE REGULATION LDO_OUT ISL97644 = 650kHz OSC = 1.2MHz 800 1000 1200 VDD L = 10µ 500mA VDD 5.0 5.5 6 FIGURE 4. BOOST CONVERTER TRANSIENT RESPONSE VDD ...
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... VFLK FIGURE 7. GPM CIRCUIT WAVEFORM CE = 10pF 100k VGH_M VFLK FIGURE 9. GPM CIRCUIT WAVEFORM INPUT SIGNAL OUTPUT SIGNAL FIGURE 11. V RISING SLEW RATE COM 7 ISL97644 (Continued) INPUT SIGNAL FIGURE 12 1000pF,RE = 100k VGH_M VFLK FIGURE 8. GPM CIRCUIT WAVEFORM CE = 10pF 150k VGH_M VFLK FIGURE 10 ...
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... REFERENCE START-UP AND GENERATOR FAULT CONTROL ENABLE LDO CONTROLLER V IN1 OUT VFLK VGH 8 ISL97644 SUMMING AMPLIFIER LOGIC + - GPM CIRCUIT VGH_M CE RE FIGURE 13. ISL97644 BLOCK DIAGRAM LX PWM 2.5µ PGND SS VIN2 VDPM ADJ LDO_OUT VDD2 POS NEG GND VDD1 FN9228.0 April 11, 2006 ...
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... This part also integrates Gate Pulse Modulator circuit that can help to optimize the picture quality. Enable Control When enable pin is pulling down, the ISL97644 is shut down reducing the supply current to <10µA. When the voltage at enable pin reaches 2.2V, the ISL97644 is on. 9 ...
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... ISL97644 The current through the MOSFET is limited to 2.6A This restricts the maximum output current (average) based on the following equation: I OMAX Where ∆I by: ∆ where f The Table 2 gives typical values (margins are considered 10%, 3%, 20%, 10% and 15 ...
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... MFG Fairchild Semiconductor International Rectifier Vishay Semiconductor FIGURE 15. CASCADED MOSFET TOPOLOGY FOR HIGH Linear-Regulator (LDO) The ISL97644 includes a LDO with adjustable output, and it can supply current up to 350mA. The output voltage × --- - adjusted by connection of ADJ pin. When ADJ pin connected to ground, the output voltage is set to 3.3V ...
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... LDO_OUT The less difference between input and output voltage, the higher efficiency it is. The minimum dropout voltage of LDO of ISL97644 is 300mV. The ceramic capacitors are recommended for the LDO input and output capacitor. Larger capacitors help reduce noise and deviation during transient load change. ...
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... V have settled again before the next line is processed. Fault Protection ISL97644 provides the overall fault protections including over current protection and over-temperature protection. An internal temperature sensor continuously monitors the VGH_M die temperature ...
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... Minimize feedback input track lengths to avoid switching noise pick-up. A demo board is available to illustrate the proper layout implementation. 14 ISL97644 FN9228.0 April 11, 2006 ...
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... 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. For information regarding Intersil Corporation and its products, see www.intersil.com 15 ISL97644 L24.4x4D 24 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE 0.15 ...