HA16163T_08 RENESAS [Renesas Technology Corp], HA16163T_08 Datasheet - Page 13

• Manufacturer Part Number: HA16163T_08
• Description: Synchronous Phase Shift Full-Bridge Control IC
• Manufacturer: RENESAS [Renesas Technology Corp]

HA16163T
Oscillator
The oscillation frequency of the oscillator is set by means of a resistance connected between the RT pin and GND. The
following graph shows the relationship between the external resistance and the oscillation frequency. The typical value
of the oscillation frequency is given by the following equation.
Place the resistor for connection to the RT pin as close to the pin as is possible. Please design the pattern so that the
level of cross-talk from other signals is minimized.
Synchronized Operation
Parallel synchronized operation is possible by connecting the SYNC pins of HA16163s. In this case, up to four slave
ICs can be connected to one master IC. A value of at least twice the master RT value should be set for the slave IC RT
values.
REJ03F0001-0600 Rev.6.00 Jul 01, 2008
Page 13 of 29
fosc =
25 [pF] × RT [Ω] + 150 [ns]
10000
1000
100
10
10
1
RT
(2.7V)
Figure 7 Parallel Synchronized Operation
RT
HA16163
MASTER
GND
fosc vs. RT
SYNC
[Hz]
RT (kΩ)
100
Max. 4 slaves
Figure 6
SYNC
SYNC
HA16163
HA16163
SLAVE
SLAVE
GND
GND
1000
RT
RT
(2.7V)
(2.7V)
RT
2*RT
2*RT
(2.7 V)
HA16163
SYNC
RT
GND