r2j20654np Renesas Electronics Corporation., r2j20654np Datasheet - Page 12

• Manufacturer Part Number: r2j20654np
• Description: Integrated Driver - Mos Fet Drmos
• Manufacturer: Renesas Electronics Corporation.

R2J20654NP
The PWM input is TTL level and has hysteresis. When the signal route from the control IC is high impedance, the tri-
state function turns off the high- and low-side MOS FETs. This function operates when the PWM input signal stays in
the input hysteresis window for 150 ns (typ.). After the tri-state mode has been entered and GH and GL have become
low, a PWM input voltage of 2.6 V or more is required to make the circuit return to normal operation.
R07DS0246EJ0100 Rev.1.00
Jan 25, 2011
PWM
PWM
GH
GL
GH
GL
DEM Operation (ZCD_EN# = "L" in Light load condition)
IL
PWM
GH
GL
2.0 V
1.4 V
2.0 V
1.4 V
0 A
Figure 2 PWM Shutdown-Hold Time Signal
Figure 1.2 Typical Signals during DEM
150 ns (t
150 ns (t
HOLD-OFF
HOLD-OFF
)
)
150 ns (t
150 ns (t
HOLD-OFF
HOLD-OFF
)
)
Page 12 of 15
Preliminary