Figure 13. Deadtime management for short pulses

50%

50%

IN

GHS

90%

GLS

10%

50%

50%

90%

10%

tDTHL

tDTLH

Note:

(1) this propagation delay is typically 16 ns longer than the one measured in INH/INL driving mode (testing condition).

toff(1)

ton(1)

toff(1)

ton(1)

The deadtime depends on the RDT value according to the following equation:

Equation 5

(5)

RDTkΩ =96.15 ∙DT μs −4.45

The equation is valid only with RDT value ranging from 50 kΩ to 250 kΩ.

Figure 14. Typical deadtime vs. DT resistor value

0

500

1000

1500

2000

2500

3000

0

50

100

150

200

250

300

DT resistor [kΩ]

Note:

If DT/MODE pin is left floating, the resulting deadtime is about 1 μs (typical at TJ = 25°C). However, it

should not be considered an operative condition. If the DT/MODE pin is shorted to ground, the device

operates in INHx/INLx mode.

5.4

Standby mode

The STDRIVE101 provides a standby mode to reduce power consumption, in particular:

•

All the outputs driver forced low (external power switches turned off)

•

The overcurrent comparator is disabled

•

TheVDS monitoring protection is disabled

•

The UVLO protection is disabled

•

The 12 V LDO linear regulator is switched off

STDRIVE101

Standby mode

DS13472 - Rev 1

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