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TPS40200-EP Datasheet(PDF) 5 Page - Texas Instruments |
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TPS40200-EP Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 41 page  www.ti.com TYPICAL CHARACTERISTICS -50 -25 0 25 50 75 100 125 Temperature-°C 1.56 1.57 1.58 1.59 1.6 1.61 1.62 1.63 1.64 1.65 1.66 V =12V DD 5 10 15 20 25 30 35 40 45 50 55 V -V DD 0 0.5 1 1.5 2 2.5 3 -50 -25 0 25 50 75 100 125 Temperature-°C 4 4.05 4.1 4.15 4.2 4.25 4.3 Turnoff Turnon -50 -25 0 25 50 75 100 125 Temperature-°C 153.5 154 154.5 155 155.5 156 156.5 V =12V DD TPS40200-EP SGLS371 – JANUARY 2007 DEVICE INFORMATION (continued) TERMINAL FUNCTIONS TERMINAL I/O DESCRIPTION NAME NO. Switching frequency-setting RC network. Connect capacitor from RC pin to GND pin and resistor from VIN RC 1 I pin to RC pin. The device may be synchronized to an external clock by connecting an open-drain output to this pin and pulling it to GND. The pulse width for synchronization should not be excessive. Soft-start programming pin. Connect capacitor from SS to GND to program soft-start time. Pulling this pin SS 2 I below 150 mV causes the output switching to stop, placing the device in a shutdown state. The pin also functions as a restart timer for overcurrent events. COMP 3 O Compensation. Error amplifier output. Connect control-loop compensation network from COMP to FB. FB 4 I Feedback. Error amplifier inverting input. Connect feedback resistor network center tap to this pin. GND 5 Device ground GDRV 6 O Driver output for external P-channel MOSFET Current-sense comparator input. Connect a current sense resistor between ISNS and VDD in order to set ISNS 7 I desired overcurrent threshold. VDD 8 I System input voltage. Connect local bypass capacitor from VDD to GND. QUIESCENT CURRENT vs TEMPERATURE QUIESCENT CURRENT vs VDD Figure 3. Figure 4. SOFT-START THRESHOLD vs TEMPERATURE UVLO TURNON AND TURNOFF vs TEMPERATURE Figure 5. Figure 6. 5 Submit Documentation Feedback |
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