isl9211b Intersil Corporation, isl9211b Datasheet
isl9211b
Related parts for isl9211b
isl9211b Summary of contents
Page 1
... The IC is designed to turn on the internal NFET slowly, to avoid in-rush current at power-up. It turns off the NFET quickly when the input is overvoltage, to remove power before damage occurs. The ISL9211B has a logic flag output to indicate a fault condition. The enable input allows the system to cut off the input power, if needed. ...
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... Pin Configuration ISL9211B (8 LD µTDFN) TOP VIEW VIN 1 GND 2 PAD NC 3 FAULT 4 2 ISL9211B CP2 Pin Descriptions SYMBOL VIN 8 OUT GND ...
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... NiPdAu plate - e4 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL9211B. For more information on MSL please see Tech Brief TB363. 3 ...
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... LOGIC EN Input Logic HIGH EN Input Logic LOW EN Internal Pull-down Resistor FAULT Output Logic Low 4 ISL9211B Thermal Information Thermal Resistance (Typical 2x2 µTDFN (Notes 5, 6 Maximum Junction Temperature (Plastic Package .+150°C Maximum Storage Temperature Range . . . . . . . . . . . . . .-65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below http://www ...
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... Typical Application INPUT R LIM 5 ISL9211B Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued) SYMBOL TEST CONDITIONS Pin Voltage = 4.2V r Measured at 200mA DS(ON) VIN OUT ISL9211B VB ILIM EN GND FAULT PART DESCRIPTION Ω R 24.9k LIM Ω Ω R 200k 1µ ...
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... FIGURE 4. INPUT OVERVOLTAGE PROTECTION - V RAMPING UP TO OVP THRESHOLD (CH1 = V CH2 = V , CH3 = OUT FIGURE 6. SHORT CIRCUIT TEST (CH1 = V CH4 = I ) OUT 6 ISL9211B Test conditions for typical operating performance are: V FIGURE 3. INPUT OVERVOLTAGE PROTECTION - V , OUT SLOWLY FIGURE 5. LINE TRANSIENT - FAULT FIGURE 7. BATTERY OVERVOLTAGE PROTECTION - V , CH2 = V ...
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... TEMPERATURE (°C) FIGURE 12. OVERCURRENT PROTECTION vs TEMPERATURE AT VARIOUS INPUT VOLTAGES 7 ISL9211B Test conditions for typical operating performance are FAULT FIGURE 11. INPUT OVERVOLTAGE PROTECTION vs TEMPERATURE 70 90 110 130 FIGURE 13 5V +25° FIGURE 9. ZOOMED-IN VIEW OF FIGURE 8 5.85 RISING THRESHOLD 5 ...
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... VB FIGURE 14. ON-RESISTANCE vs TEMPERATURE AT DIFFERENT INPUT VOLTAGES Theory of Operation The ISL9211B is an integrated circuit (IC) optimized to provide redundant safety protection to a Li-ion battery against charging system failures. The IC monitors input voltage, battery voltage, and charge current. When any of these parameters exceeds its limit, the IC turns off an internal N-channel MOSFET to remove power from the charging system ...
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... Two scenarios can cause input voltage over-shoot. The first one is when the AC adapter is inserted live (hot insertion). The second one is when the current in the power NFET of the ISL9211B has a step-down change. Figure 16 shows an equivalent circuit for the ISL9211B input. The cable between the AC/DC converter output and the handheld system input has a parasitic inductor ...
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... The recommended input decoupling capacitor is a 25V, X5R HANDHELD SYSTEM dielectric ceramic capacitor with a value between 0.1µF and 1µF. The output of the ISL9211B and the input of the charging circuit typically share one decoupling capacitor. Selection of that capacitor is determined mainly by the requirements of the charging circuit. When using the ISL6292 family of chargers, a 1µ ...
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... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see 11 ISL9211B www.intersil.com/askourstaff For additional products, see www.intersil.com/product_tree www ...
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... LEAD MICRO THIN DUAL FLAT NO-LEAD PLASTIC PACKAGE (µTDFN) WITH E-PAD Rev 0, 04/08 2.00 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW PACKAGE OUTLINE ( 6x0. 8x0.25 ) 0.90 2.00 TYPICAL RECOMMENDED LAND PATTERN 12 ISL9211B 0.25±0.050 ( 8x0. MAX ( 8x0.30 ) 1.60 2.00 C NOTES: 1. Dimensions are in millimeters. Dimensions ...