Selector guide, Chip information, Functional diagram – Rainbow Electronics MAX15001 User Manual
Page 17
MAX15000/MAX15001
Current-Mode PWM Controllers with
Programmable Switching Frequency
______________________________________________________________________________________
17
Selector Guide
*The MAX15001 does not have an internal bootstrap UVLO. The
MAX15001 starts operation as long as V
IN
is higher than 9.5V
and UVLO/EN is higher than 1.23V.
PART
BOOTSTRAP
UVLO
STARTUP
VOLTAGE (V)
MAX DUTY
CYCLE (%)
MAX15000A
Yes
22
50
MAX15000B
Yes
22
75
MAX15001A*
No
9.5
50
MAX15001B*
No
9.5
75
Chip Information
PROCESS: BiCMOS
DRIVER
FB
CS
NDRV
GND
IN
COMP
UVLO/EN
IN
CLAMP
26.1V
*MAX15000 ONLY
*
UFLG
V
CC
MAX15000
MAX15001
ERROR
AMP
CPWM
UVLO
RT
OSCILLATOR
ILIM
S
R
REG_OK
REGULATOR
(INTERNAL 5.25V
SUPPLY)
IN
V
L
V
CC
Q
1.23V
1.17V
V
CS
1V
1.4V
DIGITAL
SOFT-START
REFERENCE
1.23V
N
210
µs
DELAY
BOOTSTRAP UVLO
21.6V
9.74V
Functional Diagram