ISL6564A Datasheet, PDF (3/28 Pages) Intersil Corporation – Multiphase PWM Controller with Linear 6-Bit DAC Capable of Precision rDS(ON) or DCR Differential Current Sensing

ISL6564A Block Diagram
ISL6564A
RGND
VSEN
VDIFF PGOOD
OVP
DRVEN
VCC
x1
S ^{OVP R}
LATCH
POWER-ON
RESET (POR)
Q
ENLL
1.29V
EN
OVP
+200mV
SOFT-START
AND
FAULT LOGIC
CLOCK AND
SAWTOOTH
GENERATOR
∑
PWM
THREE-STATE
FS
PWM1
OFS
OFFSET
∑
PWM
PWM2
REF
DAC
VID5
VID4
VID3
VID2
VID1
VID0
COMP
FB
IDROOP
DYNAMIC
VID
D/A
IOUT
∑
PWM
PWM3
∑
PWM
E/A
I_TRIP
OC
∑
CHANNEL
CURRENT
BALANCE
I_TOT
CHANNEL
DETECT
SAMPLE
&
HOLD
CHANNEL
CURRENT
SENSE
GND
PWM4
ISEN1+
ISEN1-
ISEN2+
ISEN2-
ISEN3+
ISEN3-
ISEN4+
ISEN4-
3
FN6285.1
March 20, 2007