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DRV5053PAQDBZR Datasheet(PDF) 11 Page - Texas Instruments |
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DRV5053PAQDBZR Datasheet(HTML) 11 Page - Texas Instruments |
11 / 25 page DRV5053 www.ti.com SLIS153C – MAY 2014 – REVISED DECEMBER 2015 Feature Description (continued) 7.3.4 Output Stage The DRV5053 output stage is capable of up to 300- μA of current source or 2.3-mA sink. For proper operation, ensure that equivalent output load ROUT > 10 kΩ. The capacitive load directly present on the OUT pin should be less than 10 nF to ensure the internal operational amplifier is stable. If an external RC filter is added to reduce noise, it is acceptable to use a resistor ≥ 200 Ω with a capacitor ≤0.1 µF. For an application example, see Filtered Typical Application. 7.3.5 Protection Circuits An analog current limit circuit limits the current through the output driver. The driver current will be clamped to IOCP 7.3.5.1 Overcurrent Protection (OCP) An analog current-limit circuit limits the current through the FET. The driver current is clamped to IOCP. During this clamping, the rDS(on) of the output FET is increased from the nominal value. 7.3.5.2 Load Dump Protection The DRV5053 device operates at DC VCC conditions up to 38 V nominally, and can additionally withstand VCC = 40 V. No current-limiting series resistor is required for this protection. 7.3.5.3 Reverse Supply Protection The DRV5053 device is protected in the event that the VCC pin and the GND pin are reversed (up to –22 V). NOTE In a reverse supply condition, the OUT pin reverse-current must not exceed the ratings specified in the Absolute Maximum Ratings. Table 1. FAULT CONDITION DEVICE DESCRIPTION RECOVERY FET overload (OCP) ISINK ≥ IOCP Operating Output current is clamped to IOCP IO < IOCP Load Dump 38 V < VCC < 40 V Operating Device will operate for a transient duration VCC ≤ 38 V Reverse Supply –22 V < VCC < 0 V Disabled Device will survive this condition VCC ≥ 2.5 V 7.4 Device Functional Modes The DRV5053 device is active only when VCC is between 2.5 and 38 V. When a reverse supply condition exists, the device is inactive. Copyright © 2014–2015, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: DRV5053 |
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