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L6384ED 数据表(PDF) 5 Page - STMicroelectronics |
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L6384ED 数据表(HTML) 5 Page - STMicroelectronics |
5 / 17 page L6384E Pin connection 5/17 2 Pin connection Figure 2. Pin connection (Top view) Table 4. Pin description N° Pin Type Function 1 IN I Logic Input: it is in phase with HVG and in opposition of phase with LVG. It is compatible to VCC voltage. [Vil Max = 1.5V, Vih Min = 3.6V] 2 Vcc Supply input voltage: there is an internal clamp [Typ. 15.6V] 3 DT/SD I High impedance pin with two functionalities. When pulled lower than Vdt [Typ. 0.5V] the device is shut down. A voltage higher than Vdt sets the dead time between high side gate driver and low side gate driver. The dead time value can be set forcing a certain voltage level on the pin or connecting a resistor between pin 3 and ground. Care must be taken to avoid below threshold spikes on pin 3 that can cause undesired shut down of the IC. For this reason the connection of the components between pin 3 and ground has to be as short as possible. This pin can not be left floating for the same reason. The pin has not be pulled through a low impedance to VCC, because of the drop on the current source that feeds Rdt. The operative range is: Vdt....270K ⋅ Idt, that allows a dt range of 0.4 - 3.1µs. 4 GND Ground 5 LVG O Low Side Driver Output: the output stage can deliver 400mA source and 650mA sink [Typ. Values]. The circuit guarantees 0.3V max on the pin (@ Isink = 10mA) with VCC > 3V and lower than the turn on threshold. This allows to omit the bleeder resistor connected between the gate and the source of the external mosfet normally used to hold the pin low; the gate driver ensures low impedance also in SD conditions. 6 Vout O High Side Driver Floating Reference: layout care has to be taken to avoid below ground spikes on this pin. 7 HVG O High Side Driver Output: the output stage can deliver 400mA source and 650mA sink [Typ. Values]. The circuit gurantees 0.3V max between this pin and Vout (@ Isink = 10mA) with VCC > 3V and lower than the turn on threshold. This allows to omit the bleeder resistor connected between the gate and the source of the external mosfet normally used to hold the pin low; the gate driver ensures low impedance also in SD conditions. 8 Vboot Bootstrap Supply Voltage: it is the high side driver floating supply. The bootstrap capacitor connected between this pin and pin 6 can be fed by an internal structure named "bootstrap driver" (a patented structure). This structure can replace the external bootstrap diode. IN VCC DT/SD GND 1 3 2 4 LVG VOUT HVG VBOOT 8 7 6 5 D97IN519 |
类似零件编号 - L6384ED |
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类似说明 - L6384ED |
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