ISL9209B Intersil Corporation, ISL9209B Datasheet
ISL9209B
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ISL9209B Summary of contents
Page 1
... PFET quickly when the input is overvoltage in order to remove the power before any damage occurs. The ISL9209B has a logic warning output to indicate the fault and an enable input to allow the system to remove the input power. ...
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... EN Input Logic LOW EN Internal Pull Down Resistor WRN Output Logic Low WRN Output Logic High Leakage Current 2 ISL9209B Thermal Information Thermal Resistance (Typical, Notes 2, 3) θ 4x3 TDFN Package . . . . . . . . . . . . . . . Maximum Junction Temperature (Plastic Package +150°C Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C Maximum Lead Temperature (Soldering 10s +300° ...
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... C 1 ISL9209B VB ILIM EN R ILIM GND WRN 3 ISL9209B SYMBOL TEST CONDITIONS r Measured at 500mA, 4.3V < V DS(ON) VB (Pin 8) Battery voltage monitoring input. This pin is connected to the battery pack positive terminal via an isolation resistor. ILIM (Pin 9) Overcurrent protection threshold setting pin. Connect a resistor between this pin and GND to set the OCP threshold. ...
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... FIGURE 2. CAPTURED WAVEFORMS FOR POWER-UP. THE OUTPUT IS LOADED WITH A 10Ω RESISTOR Time: 500ms/div TIME: 500ms/DIV OUT (2V/DIV) OUT (2V/div) WRN (5V/DIV) WRN (5V/div) FIGURE 4. CAPTURED WAVEFORMS WHEN THE INPUT GRADUALLY RISES TO THE INPUT OVERVOLTAGE THRESHOLD 4 ISL9209B POR POR FET FET Pre-reg ...
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... INPUT VOLTAGE (V) FIGURE 10. INPUT BIAS CURRENT vs INPUT VOLTAGE WHEN ENABLED AND DISABLED 5 ISL9209B The test conditions for the Typical Operating Performance are 25.5kΩ 200kΩ, Unless Otherwise Noted. (Continued) ILIM VB OUT (2V/div) OUT (2V/DIV) Time: 500μs/div TIME: 500µ ...
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... TEMPERATURE (°C) FIGURE 16. OVERCURRENT PROTECTION THRESHOLDS vs TEMPERATURE AT VARIOUS INPUT VOLTAGES 6 ISL9209B The test conditions for the Typical Operating Performance are 25.5kΩ 200kΩ, Unless Otherwise Noted. (Continued) ILIM VB 70 100 130 FIGURE 13. INPUT OVERVOLTAGE PROTECTION ...
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... TEMPERATURE (°C) FIGURE 20. EN INPUT THRESHOLD vs TEMPERATURE FIGURE 22. ON-RESISTANCE vs TEMPERATURE AT DIFFERENT INPUT VOLTAGES 7 ISL9209B The test conditions for the Typical Operating Performance are 25.5kΩ 200kΩ, Unless Otherwise Noted. (Continued) ILIM VB 70 100 130 FIGURE 19. VB PIN LEAKAGE CURRENT vs TEMPERATURE ...
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... MOSFET. The IC does not resume operation until the internal temperature drops below +90°C. External Enable Control The ISL9209B offers an enable (EN) input. When the EN pin is pulled to logic HIGH, the protection IC is shut down. The internal control circuit as well as the power PFET are turned off ...
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... FIGURE 23. LITHIUM-SAFE OPERATING REGIONS Interfacing to MCU The ISL9209B has the enable (EN) and the warning (WRN) digital signals that can be interfaced to a microcontroller unit (MCU). Both signals can be left floating if not used. When interfacing to an MCU highly recommended to insert a resistor between the ISL9209B signal pin and the MCU GPIO pin, as shown in Figure 24 ...
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... In practice, the input decoupling capacitor is recommended to use a 16V X5R dielectric ceramic capacitor with a value between 0.1µF to 1µF. The output of the ISL9209B and the input of the charging circuit typically share one decoupling capacitor. The selection of that capacitor is mainly determined by the requirement of the charging circuit. When using the ISL6292 family 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 www.intersil.com 11 ISL9209B L12.4x3A 12 LEAD THIN DUAL FLAT NO-LEAD PLASTIC PACKAGE 2X (COMPLIANT TO JEDEC MO-229-WGED-4 ISSUE C) 0 ...