MAX5953A/MAX5953B/MAX5953C/MAX5953D
IEEE 802.3af PD Interface and PWM Controllers
with Integrated Power MOSFETs
______________________________________________________________________________________ 25
Chip Information
PROCESS: BiCMOS
Selector Guide
Pin Configuration
PART
PGOOD or
PGOOD
UVLO
MAX5953A PGOOD Adjustable
MAX5953B PGOOD Fixed
MAX5953C PGOOD Adjustable
MAX5953D PGOOD Fixed
TOP VIEW
MAX5953A
MAX5953B
MAX5953C
MAX5953D
THIN QFN
7mm x 7mm
13
14
15
16
17
18
19
20
21
22
23
24
N.C.
N.C.
OUT
OUT
N.C.
**
N.C.
CS
PPWM
GND
PGND
CSS
48
47
46
45
44
43
42
41
40
39
38
37
1
2
345678910
11
12
N.C.
N.C.
N.C.
RAMP
RCFF
FLTINT
RTCT
REGOUT
INBIAS
HVIN
N.C.
DCUVLO
*UVLO FOR MAX5953A/MAX5953C
N.C. FOR MAX5953B/MAX5953D
** PGOOD FOR MAX5953A/MAX5953B
PGOOD FOR MAX5953C/MAX5953D
+
N.C.
V
EE
V
EE
GATE
RCLASS
N.C.
*
N.C.
V+
N.C.
N.C.
N.C.
36
35
34 33 32 31 30 29 28 27
26
25
OPTO
SRC
SRC
XFRMRL
XFRMRL
DRVIN
XFRMRH
XFRMRH
DRNH
DRNH
N.C.
BST
MAX5953A/MAX5953B/MAX5953C/MAX5953D
IEEE 802.3af PD Interface and PWM Controllers
with Integrated Power MOSFETs
26 ______________________________________________________________________________________
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages
.)
32, 44, 48L QFN.EPS
e
L
e
L
A1
A
A2
E/
2
E
D/2
D
DETAIL
A
D2/2
D2
b
L
k
E2/2
E2
(NE-1) X
e
(ND-1) X
e
e
C
L
C
L
C
L
C
L
k
DETAIL
B
e
L
L1
PACKAGE OUTLINE
21-0144
2
1
E
32, 44, 48, 56L THIN QFN, 7x7x0.8mm
MAX5953A/MAX5953B/MAX5953C/MAX5953D
IEEE 802.3af PD Interface and PWM Controllers
with Integrated Power MOSFETs
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 27
© 2006 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
M. Quijano
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages
.)
PACKAGE OUTLINE
21-0144
2
2
E
32, 44, 48, 56L THIN QFN, 7x7x0.8mm
Revision History
Pages changed at Rev 1: 1, 27

MAX5953DUTM+T

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Switching Controllers IEEE 802.3af PD Int & PWM Controlle
Lifecycle:
New from this manufacturer.
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