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BUK207-50X Datasheet(PDF) 4 Page - NXP Semiconductors |
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BUK207-50X Datasheet(HTML) 4 Page - NXP Semiconductors |
4 / 13 page Philips Semiconductors Product specification TOPFET high side switch BUK207-50X SMD version of BUK203-50X PROTECTION FUNCTIONS AND STATUS INDICATIONS Truth table for normal, open-circuit load and overload conditions and abnormal supply voltages. FUNCTIONS TRUTH TABLE THRESHOLD SYMBOL CONDITION INPUT STATUS OUTPUT MIN. TYP. MAX. UNIT Normal on-state 1 1 1 Normal off-state 0 1 0 I L(OC) Open circuit load 1 1 0 1 30 90 150 mA Open circuit load 0 1 0 T j(TO) Over temperature 2 1 0 0 150 175 - ˚C Over temperature 3 00 0 V BL(TO) Short circuit load 4 1 0 0 9 10.5 12 V Short circuit load 0 1 0 V BG(TO) Low supply voltage 5 X1 0 3 4 5 V V BG(LP) High supply voltage 6 X1 0 40 45 50 V For input ‘0’ equals low, ‘1’ equals high, ‘X’ equals don’t care. For status ‘0’ equals low, ‘1’ equals open or high. For output switch ‘0’ equals off, ‘1’ equals on. STATUS CHARACTERISTICS T mb = 25 ˚C. The status output is an open drain transistor, and requires an external pull-up circuit to indicate a logic high. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT V SG Status clamping voltage I S = 100 µA6 7 8 V V SG Status low voltage I S = 50 µA; VBG = 13 V - 0.7 0.8 V I S Status leakage current V SG = 5 V - 0.1 1 µA I S Status saturation current 7 V SS = 5 V; RS = 0 Ω; VBG = 13 V - 9 - mA Application information R S External pull-up resistor 8 V SS = 5 V - 100 - k Ω 1 In the on-state, the switch detects whether the load current is less than the quoted open load threshold current. This is for status indication only. Typical hysteresis equals 25 mA. The thresholds are specified for supply voltage within the normal working range. 2 After cooling below the reset temperature the switch will resume normal operation. The reset temperature is lower than the trip temperature by typically 10 ˚C. 3 If the overtemperature protection has operated, status remains low to indicate the overtemperature condition even if the input is taken low, providing the device has not cooled below the reset temperature. 4 After short circuit protection has operated, the input voltage must be toggled low for the switch to resume normal operation. 5 Undervoltage sensor causes the device to switch off. Typical hysteresis equals 0.5 V. 6 Overvoltage sensor causes the device to switch off to protect the load. Typical hysteresis equals 1.1 V. 7 In a fault condition with the pull-up resistor short circuited while the status transistor is conducting. 8 The pull-up resistor also protects the status pin during reverse battery conditions. July 1996 4 Rev 1.000 |
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