Rainbow Electronics MAX17101 - Manual (Page 20)

MAX17101
Dual Quick-PWM, Step-Down Controller
with Low-Power LDO, RTC Regulator
20 ______________________________________________________________________________________
Figure 3. Functional Diagram—Quick-PWM Core
SKIP
S
R
Q
S
R*
Q DH DRIVER
DL DRIVER
SLOPE COMPENSATION
ANALOG
SOFT-
START/STOP
VALLEY
CURRENT LIMIT
FB
REFIN
LX
AGND
GND
AGND
ON
NEG CURRENT
LIMIT
ZERO
CROSSING
INT PRESET
OR EXT ADJ
THREE-LEVEL
DECODE
REF
GND
INTEGRATOR
*RESET DOMINATE
1-SHOT
TRIG Q
t
OFF(MIN)
1-SHOT
TRIG Q
t ON
ON-TIME
COMPUTE
TON
IN
ILIM
VCC
1-SHOT
TRIG Q
ULTRASONIC
GND
FB
REFIN
ULTRASONIC
THRESHOLD