Datasheet ADP1611 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 20 V,1.2 MHz Step-Up DC-to-DC Switching Converter |
| 页数 / 页 | 20 / 4 — ADP1611. ABSOLUTE MAXIMUM RATINGS. Table 2. Parameter. Rating. VOUT. … |
| 文件格式/大小 | PDF / 763 Kb |
| 文件语言 | 英语 |
ADP1611. ABSOLUTE MAXIMUM RATINGS. Table 2. Parameter. Rating. VOUT. COMP. ERROR. AMP. REF. BIAS. COMPARATOR. F/F. R Q. COUT. RAMP. GEN. DRIVER. VIN. 1.2MHz
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ADP1611 ABSOLUTE MAXIMUM RATINGS Table 2.
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any IN, COMP, SD, SS, RT, FB to GND −0.3 V to +6 V other conditions above those indicated in the operational SW to GND 22 V section of this specification is not implied. Exposure to absolute RMS SW Pin Current 1.2 A maximum rating conditions for extended periods may affect Operating Ambient Temperature Range −40°C to +85°C device reliability. Absolute maximum ratings apply individually Operating Junction Temperature Range −40°C to +125°C only, not in combination. Unless otherwise specified, all other Storage Temperature Range −65°C to +150°C voltages are referenced to GND. θJA, Two Layers 206°C/W θJA, Four Layers 142°C/W Lead Temperature Range (Soldering, 60 sec) 300°C
IN RC CC VOUT C COMP IN IN 1 6 ERROR R1 L1 AMP ADP1611 REF FB g BIAS m 2 R2 COMPARATOR SW D1 5 VOUT F/F R Q COUT RAMP GEN S DRIVER VIN RT 1.2MHz 7 OSC 700kHz SD 3 CURRENT- SS SENSE 8 SOFT START AMPLIFIER CSS 4 GND
04906-002 Figure 2. Block Diagram and Typical Application Circuit
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. 0 | Page 4 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CURRENT-MODE PWM OPERATION FREQUENCY SELECTION SOFT START ON/OFF CONTROL SETTING THE OUTPUT VOLTAGE INDUCTOR SELECTION CHOOSING THE INPUT AND OUTPUT CAPACITORS DIODE SELECTION LOOP COMPENSATION SOFT-START CAPACITOR APPLICATION CIRCUITS STEP-UP DC-TO-DC CONVERTER WITH TRUE SHUTDOWN TFT LCD BIAS SUPPLY SEPIC POWER SUPPLY LAYOUT PROCEDURE OUTLINE DIMENSIONS ORDERING GUIDE
Stresses above those listed under Absolute Maximum Ratings
Parameter Rating
may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any IN, COMP, SD, SS, RT, FB to GND −0.3 V to +6 V other conditions above those indicated in the operational SW to GND 22 V section of this specification is not implied. Exposure to absolute RMS SW Pin Current 1.2 A maximum rating conditions for extended periods may affect Operating Ambient Temperature Range −40°C to +85°C device reliability. Absolute maximum ratings apply individually Operating Junction Temperature Range −40°C to +125°C only, not in combination. Unless otherwise specified, all other Storage Temperature Range −65°C to +150°C voltages are referenced to GND. θJA, Two Layers 206°C/W θJA, Four Layers 142°C/W Lead Temperature Range (Soldering, 60 sec) 300°C
IN RC CC VOUT C COMP IN IN 1 6 ERROR R1 L1 AMP ADP1611 REF FB g BIAS m 2 R2 COMPARATOR SW D1 5 VOUT F/F R Q COUT RAMP GEN S DRIVER VIN RT 1.2MHz 7 OSC 700kHz SD 3 CURRENT- SS SENSE 8 SOFT START AMPLIFIER CSS 4 GND
04906-002 Figure 2. Block Diagram and Typical Application Circuit
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. 0 | Page 4 of 20 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION CURRENT-MODE PWM OPERATION FREQUENCY SELECTION SOFT START ON/OFF CONTROL SETTING THE OUTPUT VOLTAGE INDUCTOR SELECTION CHOOSING THE INPUT AND OUTPUT CAPACITORS DIODE SELECTION LOOP COMPENSATION SOFT-START CAPACITOR APPLICATION CIRCUITS STEP-UP DC-TO-DC CONVERTER WITH TRUE SHUTDOWN TFT LCD BIAS SUPPLY SEPIC POWER SUPPLY LAYOUT PROCEDURE OUTLINE DIMENSIONS ORDERING GUIDE