Datasheet > 2EDR8258X

2EDR8258X

更新时间： 2024-04-09 19:01:35

品牌	Logo	应用领域
英飞凌 - INFINEON		驱动
页数	文件大小	规格书
34页	4342K
描述
The EiceDRIVER? 2EDR8258X is a reinforced isolated gate driver IC for control over the mandatory s

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2EDR8258X 数据手册

EiceDRIVER^™2EDR8259H, 2EDRx259X, 2EDRx258X

Dual-channel isolated gate driver ICs in 300 mil DSO package

2 Functional description

2.4

Shoot-through protection and configurable dead-time - STP/DTC

The shoot-through protection pulls down the outputs OUTA and OUTB when both input signals INA, INB are at

high state. Its activation is recommended when the driver is used as half-bridge driver to prevent dangerous

shoot-through due to unwanted overlap of INA and INB. A dead-time can be ensured and configured via pin

STP/DTC as shown in Table 6.

Table 6

STP/DTC logic table

Conditions on the STP/DTC pin

Shoot-through

protection

Configurable dead-time

Tied to VDDI or lef open

Disabled

Enabled

Disabled

Connected to GNDI via resistor R_DTC

Enabled with t_dt[ns] = 10 x R_DTC

[kΩ]; allowed R_DTCrange is 1.2kΩ

to 100kΩ

Connected to GNDI

Enabled

Disabled

The driver dead-time logic is triggered during the falling edge of an input and delays the rising transition of the

other input. The delay is only assigned if the driver configured dead-time is longer than the inputs signals’ own

dead-time.

The dead-time can be configured by changing the current fed into the STP/DTC pin via an external resistance

according to the formula: t_dt[ns] = 10 x R_DTC[kΩ]. It is recommended to use resistors with 1% accuracy in the 1.2

kΩ to 100 kΩ range. Connecting capacitors to the DTC pin must be avoided when the dead-time control

functionality is used.

INA

INB

t_dt

OUTA

t_dt

OUTB

Figure 4

Table 7

Logic for STP/DTC pin connected to GNDI via resistance R_DTC

Condition

STP/DTC logic

A, B

The driver logic assigns the configured dead-time since it is longer than the input

signals’ dead-time

C, D

The driver logic does not assign the configured dead-time since it is shorter than

the input signals’ dead-time

(table continues...)

Datasheet

Rev. 1.4

2023-10-30

1...5 6 789 10 11...34

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