STEF05PUR STMicroelectronics, STEF05PUR Datasheet
STEF05PUR
Specifications of STEF05PUR
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STEF05PUR Summary of contents
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Features Continuous Current Typ: 3.6A NChannel On Resistance Typ:40m Enable/Fault Functions Output Clamp Voltage Typ:6.65V Under Voltage Lockout Short Circuit Limit Overload Current Limit Controlled Output Voltage Ramp Thermal Latch Typ: 165°C Uses Tiny Capacitors Operative Junction Temp. -40° C ...
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Device block diagram 2/17 Doc Number Rev 07 STEF05 ...
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... If an additional capacitor is not required, this pin should be left open. 10 GND Ground Pin 11 Vcc Exposed pad. Positive input voltage must be connected to Vcc. Table 2. Order Codes Type STEF05 GND dv/dt Vcc En/fault I-Limit N/C NOTE Tape & Reel STEF05PUR Doc Number Rev 07 Pin Configuration Package DFN 3x3 10L. 3/17 ...
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Maximum Ratings 2 Maximum Ratings Table 3. Absolute Maximum Ratings Symbol Positive Power Supply Voltage (steady state Positive Power Supply Voltage (max 100ms) Vout/source (max 100ms) I-Limit (max 100ms) En/Fault dv/dt T Max Junction Temperature J T Storage ...
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STEF05 3 Electrical Characteristics Table 5. Electrical Characteristics for STEF05 V =5V, V =3.3V Symbol Parameter Under/Over Voltage Protection V Output Clamping Voltage Clamp V Under voltage Lockout UVLO V UVLO Hysteresis Hyst Power MOSFET Delay Time ...
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Typical Application 4 Typical Application Figure 2. Application circuit Figure 3. Typical HDD application circuit 6/17 Doc Number Rev 07 STEF05 ...
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STEF05 4.1 Operating modes 4.1.1 Turn-on. When the input voltage is applied, the Enable/Fault pin goes up to the high state, enabling the internal control circuitry. After an initial delay time of typically 500 s, the output voltage is supplied ...
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Typical Application 4.3 C calculation dv/dt Connecting a capacitor between the C output voltage ramp up time. Given the desired time interval t during which the output voltage goes from zero to his maximum value, the capacitance to be added ...
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STEF05 If this pin is left floating, since it has an internal pull-up circuitry, the output of the E-Fuse will be kept ON, in normal operating condition. In case of thermal fault the pin is pulled to an intermediate state ...
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Typical Performance Characteristics 5 Typical Performance Characteristics (The following plots are referred to the typical application circuit and, unless otherwise noted 25°C) A Figure 6. Clamping voltage vs temperature Figure 8. UVLO hysteresis vs temperature 10/17 Figure ...
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STEF05 Figure 10. Bias current (device operational) Figure 12. Current limit vs R Figure 14. V ramp-up vs Enable OUT Figure 11. ON resistance vs temperature Figure 13. Thermal latch delay vs power Limit Figure 15. V Doc Number Rev ...
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Typical Performance Characteristics Figure 16. Line transient Figure 18. Thermal latch from 2A load to short circuit 12/17 Figure 17. Startup into output short circuit Figure 19. Startup into output short circuit (fast rise) Doc Number Rev 07 STEF05 ...
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STEF05 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. ...
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Package mechanical data 14/17 Doc Number Rev 07 STEF05 ...
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STEF05 7 Footprint Recommended Data Footprint Recommended Data Doc Number Rev 07 15/17 ...
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Revision History 8 Revision History Date Revision 13 May 11 07 16/17 Description of Change General review. Doc Number Rev 07 STEF05 ...
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... STEF05 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. ...