ha16163t Renesas Electronics Corporation., ha16163t Datasheet - Page 10

• Manufacturer Part Number: ha16163t
• Description: Synchronous Phase Shift Full-bridge Control Ic
• Manufacturer: Renesas Electronics Corporation.

HA16163T
Timer Latch and One Shot OCP
Rev.5.0, Mar.15.2004, page 10 of 29
CS
SS
CS
SS
LOCKOUT
(Internal signal)
SEQ.
(Internal signal)
SS IN : Voltage detector input of SS pin.
SEQ. : Timer Latch function is not activated when SEQ. signal is Low.
SHORT DET. :
DISCHARGE : Gate control for SS capasitor reset.
LIMIT IN : One shot OCP input.
LOCKOUT : Lock-out signal for OUT-A to F.
VREFGOOD : System reset signal. VREFGOOD is High when either VREF<4.6V or Remote off mode.
0.4V
0.6V
87 A
0.4V
4V
10 A
4V
OUT ENABLE
OUT DISABLE
+
−
+
−
0.4V
3.78V
Once ONE SHOT comparator detect short current in the power supply, SHORT DET. is High
until SS voltage reaches down to 0.4V.
PULSE BY PULSE
ONE SHOT
FOR PHASE MODULATION
Q
R
S
RES
SHORT DET.
DISCHARGE
VREFGOOD
3.9V
LIMIT IN
SS IN
SEQ.
OCP Block
All Flip-flop are initialized by VREFGOOD in turn on period.
0.6V
3.78V
3.9V
0.4V
−
+
−
+
−
+
Q
FAULT LOGIC
R
S
3.9V
S
R
R
S
Q
Q
0.4V
LOCKOUT