L6598 STMicroelectronics, L6598 Datasheet
L6598
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L6598
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L6598 Summary of contents
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... An error amplifier, together with the two enable inputs, are made available. In addition, the integrated bootstrap diode and the zener clamping on low voltage supply, reduces to a minimum the external parts needed in the applications. Doc ID 6554 Rev 7 L6598 1/24 www.st.com 24 ...
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... Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Block diagram description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.1 High/low side driving section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.2 Timing and oscillator section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5.3 Bootstrap section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5.4 Op amp section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.5 Comparators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 7 Ordering codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2/24 Doc ID 6554 Rev 7 L6598 ...
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... L6598 1 Maximum ratings Table 1. Absolute maximum ratings Symbol I Supply current Low side output V LVG High side reference V OUT High side output V HVG Floating supply voltage V BOOT VBOOT pin slew rate (repetitive) dV BOOT/dt OUT pin slew rate (repetitive) dV OUT/dt Forced input voltage (pins Rfmin, Rfstart) ...
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... V = 562 V 100 150 = 0 170 250 OUT = 0 300 450 BOOT 170 250 = 0 300 450 58 fmin 114 120 = 47kΩ fstart L6598 Max. Unit 11 16.6 V 250 µ µA 5 µA Ω 300 120 61.8 kHz 126 kHz ...
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... L6598 Table 4. Electrical characteristics (continued) Symbol Pin ref IVref 2, 4 Timing section Sense op amp out I 5 out- I out+ V 6,7 ic GBW G dc Comparators 8 V the1 9 V the2 8,9 t pulse 1. Guaranteed by design Parameter Test condition Voltage to current converters threshold Dead time between low ...
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... Sense op amp non inverting input - high impedance Half bridge latched enable Half bridge unlatched enable Ground Low side driver output Supply voltage with internal zener clamp Not connected High side driver reference High side driver output Bootstrapped supply voltage Doc ID 6554 Rev 7 Function fmin fstart L6598 f ...
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... L6598 4 Timing diagram Figure 3. EN2 timing diagrams Figure 4. EN1 timing diagrams Doc ID 6554 Rev 7 Timing diagram 7/24 ...
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... Timing diagram Figure 5. Oscillator/output timing diagram 8/24 Doc ID 6554 Rev 7 L6598 ...
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... L6598 5 Block diagram description 5.1 High/low side driving section An high and low side driving section provide the proper driving to the external power MOS or IGBT. An high sink/source driving current (450/250 mA typ) ensure fast switching times also when size for power MOS are used. The internal logic ensures a minimum dead time to avoid cross-conduction of the power devices ...
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... Doc ID 6554 Rev 7 ⎛ ⎞ ------------- - + --------------- - ⎝ ⎠ REF R R fmin fstart V REF = ------------- - R fmin C I → ss fstart T = ----------------------- - which the soft start SS depends fstart SS current has been designed fraction C ss → ----------- – The typical value of the Referring to the internal f 1.41 C fmin f L6598 , g , and ...
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... L6598 The degree of approximation depends on the frequency value, but it remains very good in the range from 30 kHz to 100 kHz (figg.9-13) Figure 7. Oscillator block Doc ID 6554 Rev 7 Block diagram description 11/24 ...
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... Block diagram description Figure 8. Typ. f vs. R min fmin Figure 10. Typ vs. start min 470 pF fstar f 12/ 470 pF Figure 9. Figure 11. f Doc ID 6554 Rev 7 Typ vs start min fstar C = 470 different min f f L6598 ...
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... L6598 Figure 12. Typ vs. start min 470 pF fstar f 5.3 Bootstrap section The supply of the high voltage section is obtained by means of a bootstrap circuitry. This solution normally requires an high voltage fast recovery diode for charging the bootstrap capacitor (fig. 14a). In the device a patented integrated structure, replaces this external diode ...
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... V = drop 2.23μs of the DMOS. DSON pin to adjust the oscillation frequency. Doc ID 6554 Rev 7 and of the diode DSON of the external power DSON Q g ------------------ - drop dson diode T ch arg e is the on resistance of the dson ∼ 0.6V 2.6V + L6598 is not a DSON ...
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... L6598 5.5 Comparators Two CMOS comparators are available to perform protection schemes. ≥ Short pulses ( 200 ns) on comparators input are recognized. The EN1 input (active high), has a threshold of 0.6 V (typical value) forces the device in a latched shut down state (e.g. LVG low, HVG low, oscillator stopped the under voltage conditions. Normal operating conditions are resumed after a power-off power-on sequence ...
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... Block diagram description Figure 16. Typ. fmin vs. temperature Figure 18. Typ. fstart vs. temperature 16/24 Figure 17. Start-up current vs temperature Figure 19. Quiescent current vs temperature Doc ID 6554 Rev 7 L6598 ...
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... L6598 Figure 20. Vs thresholds and clamp vs temp. Figure 22. LVG source and sink current vs. temperature Figure 21. HVG source and sink current vs. temperature Figure 23. Soft-start timing constant vs. temperature Doc ID 6554 Rev 7 Block diagram description 17/24 ...
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... Block diagram description Figure 24. Wide range AC/DC adapter application 18/24 Doc ID 6554 Rev 7 L6598 ...
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... L6598 6 Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK trademark. Doc ID 6554 Rev 7 Package mechanical data ® 19/24 ...
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... Plastic DIP-16 (0.25) MECHANICAL DATA mm. MIN. TYP MAX. 0.51 0.77 1.65 0.5 0.25 20 8.5 2.54 17.78 7.1 5.1 3.3 1.27 Doc ID 6554 Rev 7 L6598 inch MIN. TYP. MAX. 0.020 0.030 0.065 0.020 0.010 0.787 0.335 0.100 0.700 0.280 0.201 0.130 0.050 P001C ...
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... L6598 DIM SO-16 MECHANICAL DATA mm. MIN. TYP MAX. 1.75 0.1 0.25 1.64 0.35 0.46 0.19 0.25 0.5 45° (typ.) 9.8 10 5.8 6.2 1.27 8.89 3.8 4.0 4.6 5.3 0.5 1.27 0.62 8° (max.) Doc ID 6554 Rev 7 Package mechanical data inch MIN. ...
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... Ordering codes 7 Ordering codes Table 6. Ordering information Order codes L6598 L6598D L6598D016TR 22/24 Package DIP16 SO16N Doc ID 6554 Rev 7 L6598 Packing Tube Tube Tape and reel ...
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... L6598 8 Revision history Table 7. Document revision history Date 21-Jun-2004 09-Sep-2004 02-Oct-2009 Revision Changed the impagination following the new release of “corporate 5 technical pubblication design guide”. Done a few of corrections in the text. Added ordering number fot the tape and reel version, updated 6 Table 4 on page 4 ...
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... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 24/24 Please Read Carefully: © 2009 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 6554 Rev 7 L6598 ...