ISL6237 Datasheet, PDF (25/35 Pages) Intersil Corporation – High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers

ISL6237
TON
VIN
ILIM_
5µA
VCC
PHASE_
OUT_
+
OUT_
REFIN2 (SMPS2)
VREF
SLOPE COMP ^COMP
S
MIN. t_OFF
Q
TRIG
ONE SHOT
R QQ
S QQ
TO UGATE_DRIVER
BOOT
UV
DETECT
SKIP
S QQ
R _QQ
BOOT_
TO LGATE_ DRIVER
FB
DECODER
FB_
0.9V_REF
1.1V_REF
0.7V_REF
PGOOD_
OV_LATCH_
UV_LATCH_
FAULT
LLFAAATTUCCLHTH
LOGIC
20ms
BLANKING
FIGURE 66. PWM CONTROLLER (ONE SIDE ONLY)
25
FN6418.4
March 18, 2008