SI8513-C-IS Datasheet, PDF (23/37 Pages) List of Unclassifed Manufacturers – Si85XX UNIDIRECTIONAL AC CURRENT SENSORS

Si85xx
3.6. Push-Pull Converter Example
The Push-Pull converter of Figure 20 uses 2-Wire Ping Pong output mode. As shown in the timing diagram, the
integrator reset occurs when the inputs of both the PH1 and PH2 drivers are low. As shown, TRST is connected to
VDD, selecting the default value of t_R (250 ns). Assuming an 80% maximum duty cycle, this value of t_R would
deliver specified accuracy over a PWM frequency range of 50 to 400 kHz. Frequencies above 400 kHz would
require the selection of a lower t_R value by connecting a resistor from TRST to ground.
C1
0.1 µF
C2
1 µF
VDD
VIN
VDD MODE IIN
R4
TRST
Si851x
R3
R2
R1 IOUT
OUT1
OUT2
GND
PH2
PH1
Q1
PH1
PH2
T1 _{Si85xx Status MEASURE RESET MEASURE RESET MEASURE}
OUT1
Q2
OUT2
Figure 20. Push-Pull Example Using Default t_R Value
Preliminary Rev. 0.4
23