HA16142FP Datasheet, PDF (16/20 Pages) Renesas Technology Corp – PFC and PWM Controller

HA16141P/FP, HA16142P/FP
5. Integrator (OC detection operation)
PWM-RES
(internal signal)
O.C
(overcurrent
detection input)
TIM pin current
(integral output
current)
0.3V
5.2µA
0
−21µA
3V
2.5V
TIM pin voltage
(integral output
voltage)
0.2V
LATCH STATUS
(for PFC-STOP)
PFC Enable
t-tim1
PFC Stop
LATCH STATUS
(for PWM-STOP)
PWM Enable
Note: Timer time calculation equation
Timer time t-tim1 is the time until PG pin inversion (from low to high) after the O.C pin trigger.
t-tim1 can be set using the following approximate equation.
t-tim1 = −Ctim ⋅ (Vlch − pfc − 0.2V) / Isrc − tim1
= −Ctim ⋅ (2.5V − 0.2V) / (−21µA) ⋅ ⋅ ⋅ ⋅ ⋅ Typical calculation
Rev.4, Sep. 2001, page 14 of 14