ISL97653A Intersil Corporation, ISL97653A Datasheet
ISL97653A
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ISL97653A Summary of contents
Page 1
... LCD panel. An on-board temperature sensor is also provided for system thermal management control. The ISL97653A is packaged 6mmx6mm QFN package and is specified for operation over the -40°C to +105°C temperature range. Ordering Information ...
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... RSET Pull-down Resistance I RSET Leakage Current RSET A BOOST VDD DLIM Min Duty Cycle Max Duty Cycle 2 ISL97653A Thermal Information (T = +25°C) A Thermal Resistance Operating Ambient Temperature Range . . . . . . . . -40°C to +105°C Operating Junction Temperature . . . . . . . . . . . . . . -40°C to +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below . . . . . . . . . . . . . . . . . . . . +20V . . . . . . . . . . . . +1.5V to +3.3V ...
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... Low-Side Driver ON Resistance at ON NOUT V Load Reg V OFF OFF LDO Controller I Sink Current DRVP LDO-FB Feedback Voltage w/transistor load 1mA T 3 ISL97653A = 12V 15V BOOST SUPN SUPP DESCRIPTION VIN = 12V +25°C A Load 100mA to 200mA VIN = 5V, V Load 100mA to 500mA T = +25° ...
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... ON RON_COM ON Resistance between DRN-COM and PGND PROT I PROT Pull-Down Current or Resistance PROT_ON when Enabled by the Start-U I PROT Pull-Up Current when Disabled PROT_OFF 4 ISL97653A = 12V 15V BOOST SUPN SUPP DESCRIPTION Temperature rising Boost Short Detection V(FBB) falling less than Charge Pump Short Detection ...
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... C30 Optional PGND1 4.7nF R21 75k PGND2 C4 220nF C5 220nF C6 0.22µF PGND5 C7 4.7µF C0 10µF C8 R20 10k 4.7nF PGND3 PGND4 5 ISL97653A L L1 6.8µH 30 COMP BOOST 32 33 HVS 27 HVS EN 26 SEQUENCING/FAULT CONTROL PROT 36 C1P 15 C1N C2P 17 ON C2N 18 CTL ...
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... REGULATOR VIN1,2 CDEL EN P VIN1,2 SUPN N OUT - FBN + 0.2V UVLO COMPARATOR - + 0.4V 0.75 V REF - + FBP - + V REF SUPP 6 ISL97653A (Continued) V PROT REF HVS LOGIC GENERATOR REFERENCE BIAS AND SEQUENCE CONTROLLER VL CURRENT LIMIT CURRENT AMPLIFIER COMPARATOR - + CURRENT LIMIT THRESHOLD SUPP C1- C1+ P C2+ C2- OUT SAWTOOTH SLOPE COMPENSATION ...
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... I O 0.02 0.00 -0. -0. FIGURE 3. BOOST LINE REGULATION 0.3 0.2 0 0.0 -0.1 -0 -0.3 0 500 1000 I (mA) O FIGURE 5. BUCK LOAD REGULATION 7 ISL97653A V = 12V 1000 1500 = 100mA = 400mA ( 12V IN 1500 2000 0 0 0.2 0.1 0.0 0 500 1000 I (mA) O FIGURE 2. BOOST LOAD REGULATION ...
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... FIGURE 7. VON LOAD REGULATION 0.0 -0.2 -0.4 -0.6 -0 2.3V LOGIC -1.0 -1.2 -1 100 110 120 130 140 150 I LDO FIGURE 9. LOGIC LDO LOAD REGULATION CH1 = A (V VDD BOOST CH2 = I (BOOST) (100mA/DIV) O 1ms/DIV FIGURE 11. BUCK TRANSIENT RESPONSE 8 ISL97653A (Continued 25V (mA) (mA) ) (100mV/DIV) 1.2 1.0 0.8 0.6 0.4 0.2 0 25V ON -0 ...
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... DRN 24 CTL 9 ISL97653A (Continued) Logic buck supply voltage. This is also the analog supply from which the VL is generated. Needs at least 1µF bypassing. Logic buck boot strap pin. Generate the gate drive voltage for the N-Channel MOSFET by connecting a 1µF cap to the switching node LXL1,2. ...
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... PVIN1 39 LDO-FB 40 LDO-CTL 10 ISL97653A V slice control delay input. Minimum 47nF. Recommend 220nF but is only limited by leakage in the ON cap reaching µA levels. Chip enable (active high). Can be driven to VIN levels. High-voltage stress input select pin. High selects high voltage mode. Voltage set pin for HVS test. RSET connects to ground in the high voltage mode - RSET high. ...
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... Where ΔIL is peak to peak inductor ripple current, and is set by Equation the switching frequency (680kHz ΔI × --------- ---- - = ISL97653A Table 1 gives typical values (worst case margins are considered 10%, 3%, 20%, 10% and 15 and OMAX TABLE 1. MAXIMUM OUTPUT CURRENT CALCULATION (V) ( ...
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... TDK 10µF/25V 1210 Murata PI Loop Compensation (Boost Converter) The boost converter of ISL97653A can be compensated network connected from COMP pin to ground 4.7nF and R = 0Ω to 10Ω network is used in the 2 2 demo board. A higher capacitor value can be used to increase system stability ...
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... M0 at all times. GS Buck Converter The buck converter is a step down converter supplying power to the logic circuit of the LCD system. The ISL97653A integrates a high voltage N-channel MOSFET to save cost www.datasheet4u.com and reduce external component count. In the continuous current mode, the relationship between input voltage and ...
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... TDK 100µF/6.3V 1206 Murata PI Loop Compensation (Buck Converter) The buck converter of ISL97653A can be compensated network connected from CM2 pin to ground. C and R = 10k RC network is used in the demo board larger value resistor can lower the transient overshoot, however, at the expense of stability of the loop. ...
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... External feedback resistor R Faults on V which cause V OFF FBN are detected by comparator (A2) and cause the fault detection system to start the internal fault timer which will cause the chip to power down if the fault persists. 15 ISL97653A SUPP M2 M4 SUPP M1 Control D3 SUPP Error ...
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... A resistor divider is used to set the output voltage by feeding back a reference voltage to LDO-FB. The internal feedback reference is 1.215V. HVS Operation When the HVS input is taken high, the ISL97653A enters HVS test mode. In this mode, the output of A increased by switching RSET to ground, and the AVDD is set to: (EQ ...
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... ON * For demonstration only, not to scale FIGURE 18. Temperature Sensor The ISL97653A also includes a temperature output for use in system thermal management control. The integrated sensor measures the die temperature over the -40°C to +150°C range. Output is in the form of an analog voltage on the TEMP pin in the range 3V, which is proportional to the sensed die temperature. Temperature accuracy is ± ...
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... Package Outline Drawing L40.6x6 40 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 3, 10/06 www.datasheet4u.com 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( TYP ) ( TYPICAL RECOMMENDED LAND PATTERN 18 ISL97653A 6. ± 36X 40X 40X NOTES 4.5 36X 0.50 ...