BTS7010-2EPA datasheet(21/62 Pages) INFINEON

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Data Sheet

Rev. 1.05

2019-10-15

BTS7010-2EPA

PROFET™+2 12V

Power Stages

Figure 16 Switching a Resistive Load

7.2.2

Switching Inductive Loads

When switching OFF inductive loads with high-side switches, the voltage VOUT drops below ground potential,

because the inductance intends to continue driving the current. To prevent the destruction of the device due

to overvoltage, a voltage clamp mechanism is implemented. The clamping structure limits the negative

output voltage so that VDS = VDS(CLAMP). Figure 17 shows a concept drawing of the implementation. The

clamping structure protects the device in all operation modes listed in Chapter 6.1.

Figure 17 Output Clamp concept

VOUT

VIN(TH)

(dV/dt)ON

VIN(HYS)

PDMOS

PowerStage_SwitchRes.emf

EON

EOFF

tON

tON(DELAY)

tOFF(DELAY)

-(dV/dt)OFF

tOFF

10% of VS

90% of VS

70% of VS

30% of VS

70% of VS

PowerStage_Clamp_INTDIO.emf

High-side

Channel

VOUTn

VDS(CLAMP)

OUTn

VDS

GND

VS(CLAMP)

VSIS(CLAMP)

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