ha16150p Renesas Electronics Corporation., ha16150p Datasheet - Page 13

• Manufacturer Part Number: ha16150p
• Description: High-speed Current Mode Push-pull Pwm Control Ic
• Manufacturer: Renesas Electronics Corporation.

HA16150T/P
If the remote on/off control function is not used, the REMOTE pin should be permanently pulled down to GND with a
resistance of about 100 kΩ.
The remote on/off control function halts only reference voltage. Other functions will be stopped when the reference
voltage is below 4.5 V (typ.). Large stabilizing capacitance of the VREF pin results in a difference between the timing
of remote off signal and the timing to stop the IC
3. Soft Start Circuit
This function gradually increases the pulse width of the OUT pin from 0% duty at start-up to prevent a sudden increase
in the pulse width that may cause problems such as transient stress on external parts or overshoot of the secondary-side
output voltage.
The soft start time can easily be set with a single external capacitance.
Rev.3.00 Jan 30, 2007 page 13 of 24
V_CT
SS comp. IN+
(internal signal)
SS comp. out
OUT1
OUT2
Figure 3 Operation When Remote is Off (Reference Data)
(2) When VREF is blow 4.5 V(Typ),
other functions are stopped.
(1)
1.1V
VREF is halted by REMOTE.
Figure 4
4.5V(Typ)
CH3: REMOTE
CH4: VREF
CH1: SS
CH2: OUT1
V_SS