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STBP112-AVDJ6F 数据表(PDF) 8 Page - STMicroelectronics |
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STBP112-AVDJ6F 数据表(HTML) 8 Page - STMicroelectronics |
8 / 38 page Pin description STBP112 8/38 Doc ID 023357 Rev 3 The EN input is equipped with an internal pull-down resistor of 250 k Ω (typical value). If there is no need to use this input, it may be left floating or, preferably, connected to GND. For VIN lower than 2.5 V (max.), the pull-down resistor is internally disconnected to lower the EN pin input current in case the external AC adapter is not connected, the application is running from an internal battery and the STBP112 device is disabled. To improve safety and to prevent damage to application circuits in the event of extreme voltage or current conditions, an optional protective resistor REN can be connected between the EN input and the controller output (see Figure 4). The protective resistor forms a voltage divider with the internal pull-down resistor, which limits the maximum possible REN value with respect to the VIH(EN) threshold of EN input and the controller’s output voltage for logic high, VOH. For the worst case, the highest protective resistor value is RENmax = RPD(EN)min x (VOH / VIH(EN) - 1), where RPD(EN)min is 100 kΩ and VIH(EN) is 1.2 V. For most cases, an REN value of 10 kΩ to 100 kΩ is adequate. The FLT output is in Hi-Z state when the device is disabled by EN input. 2.5 No connect (NC) Pin 3, 6, and 7 are no connect (NC). They may be left floating or connected to GND. 2.6 Ground (GND) Ground terminal. All voltages are referenced to GND. The exposed thermal pad is internally connected to GND. Table 1. Pin description and signal names Pin Name Type Function 1 IN Input/supply Input voltage 2 GND Supply Ground 3, 6, 7 NC - Not connected 4FLT Output Fault indication output (open-drain) 5EN Input Enable input (pull-down resistor to GND) 8 OUT Output Output voltage |
类似零件编号 - STBP112-AVDJ6F |
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类似说明 - STBP112-AVDJ6F |
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