Datasheet

MAX17598/MAX17599
Low I
Q
, Wide-Input Range, Active Clamp
Current-Mode PWM Controllers
13Maxim Integrated
Figure 1. Block Diagram
CHIPEN/
HICCUP
POK
EN/
UVLO
OVI
RT
SS
SS
SS
1.21V
2V/0.4V
V
IN
UVLO
TSDN
1.21V
1.21V
-102mV
305mV
360mV
SSDONE
HICCUP
V
DRV
OSC
DITHER/SYNC
CLK
0.9V
CLK
DITHER/
SYNC
LDO
THERMAL SENSOR
CHIPEN
SSDONE
CONTROL AND
DRIVER LOGIC
DT
V
DRV
PGND
V
DRV
PGND
DRIVER
DRIVER
7.4V (MAX17598)
OR
4.9V (MAX17599)
Q50µA
5µA
10µA
10µA
8 PEAKEVENTS
OR 1 RUNAWAY
1.21V
REVERSE ILIM
COMP
PEAKLIM
COMP
RUNAWAY
COMP
PWM
COMP
70ns
BLANKING
SLOPE
DECODE
CURRENT
SOFT-START
FIXED OR
VARIABLE
R
R
1x
MAX17598
MAX17599
AUXDRV
NDRV
DEAD TIME
AUXDRV
NDRV
CS
SLOPE
COMP
FB
SGND
PGND
CHIPEN