L4938ED013TR STMicroelectronics, L4938ED013TR Datasheet
L4938ED013TR
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L4938ED013TR Summary of contents
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... They are designed for supplying microcomputer controlled systems especially in automotive applications. Table 1. Package SO-20 PowerSO-20 Doc ID 17243 Rev 1 L4938ED L4938EPD PowerSO-20 SO-20 Device summary Order codes Tube Tape and reel L4938ED L4938ED013TR L4938EPD L4938EPD13TR 1/20 www.st.com 1 ...
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Contents Contents 1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Electrical ...
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L4938ED, L4938EPD List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of figures List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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L4938ED, L4938EPD 1 Block diagram and pin description Figure 1. Block diagram Figure 2. Configuration diagram (top view GND GND GND GND RES SO OUT1 GND N. ...
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Block diagram and pin description Table 2. Pin definitions and functions PIn number SO- 14, 15, 16 6/20 Name PowerSO- Supply ...
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... These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to the conditions in this section for extended periods may affect device reliability. Refer also to the STMicroelectronics SURE Program and other relevant quality documents. Table 3. ...
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Electrical specifications 2.2 Thermal data Table 4. Thermal data Symbol R Thermal resistance junction to ambient thj-amb R Thermal resistance junction to case thj-case Note: Typical value soldered board with 8 cm 2.3 Electrical characteristics V = ...
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L4938ED, L4938EPD Table 7. OUT1, OUT2 Symbol V Line regulation OLi 1,2 Table 8. Enable input Symbol Enable input low voltage V ENL (output 2 active) V Enable input high voltage ENH V Enable hysteresis ENhyst I Enable input current ...
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Electrical specifications Table 10. Sense comparator Symbol V Functional range SI V Sense threshold voltage SIT V Sense threshold hysteresis SITH V Sense output low voltage SOL I Sense output leakage SOH I Sense input current high SI HIGH I ...
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L4938ED, L4938EPD 3 Application information Figure 3. Application diagram (See note 2) 1. The leakage the leakage current may be increased. The external resistor should have more than 30 KΩ. For stability: Cs ≥ 1 µF, C01 ...
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Application information In the standby mode when the output 2 is disabled, the current consumption of the device (quiescent current) is less than 90 µA (14 V supply voltage). To reduce the quiescent current peak in the undervoltage region and ...
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L4938ED, L4938EPD The value of the programming resistor R The reset pulse delay time t The reaction time of the reset circuit originates from the noise immunity. Standby output voltage drops below the reset threshold only a bit longer than ...
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Application information Figure 5. Reset generator Figure 6. Waveforms 14/20 Doc ID 17243 Rev 1 L4938ED, L4938EPD ...
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L4938ED, L4938EPD 3.8 Input protection The Inputs Enable (EN) and Sense In (SI) are protected against negative transients. Figure 7 is showing the simplified schematic Figure 7. Input protection Figure 8. Input characteristics of SI, EN Doc ID 17243 Rev ...
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Package and packing information 4 Package and packing information ® 4.1 ECOPACK 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 ...
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L4938ED, L4938EPD Figure 9. SO-20 package dimensions 4.3 PowerSO-20 package information Table 12. PowerSO-20 mechanical data Dim ( ( Package and packing information mm Min. Typ. ...
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Package and packing information Table 12. PowerSO-20 mechanical data (continued) Dim "D and F" do not include mold flash or protrusions. - Mold flash or protrusions shall not exceed 0.15 mm (0.006"). ...
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L4938ED, L4938EPD 5 Revision history Table 13. Document revision history Date 10-Mar-2010 Revision 1 Initial release. Doc ID 17243 Rev 1 Revision history Changes 19/20 ...
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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...