PD70211 Controller Datasheet

PD70211 Datasheet, PDF, Equivalent


Part Number

PD70211

Description

PD Controller

Manufacture

Microsemi

Total Page 30 Pages
Datasheet
Download PD70211 Datasheet


PD70211
PD70211
PD Controller with Switching Regulator for
AF/AT/UPOE/HDBaseT/4-pair PoE Applications
f Description
PD70211 is an advanced PD Interface IC with
integrated switching (PWM) regulator control for
Powered Devices in PoE applications. It supports
IEEE802.3af, IEEE802at, HDBaseT and general 2/4-pair
configurations.
The PD70211 front-end includes an advanced
classification block that supports 2, 3, 4, and 6 event
classification. Using the SUPP_Sx pins, it also identifies
which of the four pairs of the cable actually receives
power and generates appropriate flags.
The IC features an internal bleeder for discharging the
input capacitor of the DC/DC converter rapidly, so as
to ensure fast re-detection and port power-up in case
of sudden removal and re-insertion of the Ethernet
cable into the RJ-45. The advanced PWM current-
mode section supports synchronous Flyback and Active
clamp Forward topologies, as well as Buck, Boost etc.
Features
Supports IEEE802.3af/at, HDBaseT and other 2-
pair/4-pair configurations
Wall-adapter support (Rear Aux method)
PD detection & programmable classification
2,3,4, and 6 event classification
Integrated 0.3Ω isolating (series-pass) FET
Inrush current limiting
Less than 10µA offset current during detection
Advanced PWM section
Lead-free MLPQ-36 (6 × 6 mm) package
Applications
HDBaseT up to 95 Watts
IEEE802.3af and 802.3at
Power Forwarding
Indoor and outdoor PoE
.
VPortP1
VPortN1
VPortP2
VPortN2
Copyright © 2016
Rev. 1.4, July 2017
BOOST CONVERTER (FOR 0.6A, PoE Applications)
STAND-ALONE PD SOLUTION FOR POWER FORWARDING
VPP
120µH/1.5A
3A/80V
57V/0.6A
VPP
SUPP_S1
VPN
VPP
SUPP_S2
VPN
VPN
10µF/
25V
0.1µF/
25V
0.1µF/10V
VCC
0.1µF/10V
0.1µF/10V
31 VH PD70211
32 VAUX_VCC (PWM SECTION)
25 VL
17 SS
18 RCLP
PG 30
CSP 29
CSN 28
562k
12 ENABLE
13 VINS
562k
18.7k
14
HYST
49.9k 16 RFREQ
VSN VSP DAO GND PGND SYNC
19 20 22 24 27 15
COMP 21
21.5k
2nF
FB 23
SG
26
10
100
1nF
Si7852ADP
(Four 2.4/1W)
4 x ERJ-1TYJ2R4U
100pF
Loop compensation
will need to be
tweaked
330pF 215k
237k
4.99k
24.9k 1%
30.9k
243k
PD70211
35 VPP (Front-End SECTION)
32 VAUX_VCC
WA_EN 33
36 RDET
5 RCLASS
4 RREF
EPAD
(Pin 37)
SUPP_S1 1
SUPP_S2 2
AT_FLAG 7
4P_AT_FLAG 3
HD_FLAG 6
4P_HD_FLAG 34
8 , 9 VPN_IN
VPN_OUT 10 , 11
VPN
SUPP_S1
SUPP_S2
AT_FLAG
4P_AT_FLAG
HD_FLAG
4P_HD_FLAG
330µF/63V/
Aluminum
Figure 1: Typical Applications Diagram (PD70211)
Microsemi
CPG PoE BU
One Enterprise Aliso Viejo, CA 92656 USA
Page 1

PD70211
PD70211
PD Controller with Switching Regulator for
AF/AT/UPOE/HDBaseT/4-pair PoE Applications
Pin Configuration
SUPP_S1 1
SUPP_S2 2
4P_AT_FLAG 3
RREF 4
RCLASS 5
HD_FLAG 6
AT_FLAG 7
VPN_IN 8
VPN_IN 9
36 35 34 33 32 31 30 29 28
PD70211
(Top view)
EPAD
(Pin 37)
27 PGND
26 SG
25 VL
24 GND
23 FB
22 DAO
21 COMP
20 VSP
19 VSN
10 11 12 13 14 15 16 17 18
Figure 2: Pinout of PD70211 (top view)
Ordering Information
Ambient
Temperature
Type
-40°C to 85°C
RoHS compliant,
Pb-free
Part Marking
MSCC Logo
70211
Assembly site and production
revision identifiers
Date/Lot Code
Ordering
P/N
Package
PD70211ILQ-
TR
MLPQ-36
(6 mm × 6 mm,
0.5mm pitch)
Note
Copyright © 2016
Rev. 1.4, July 2017
Microsemi
CPG PoE BU
One Enterprise Aliso Viejo, CA 92656 USA
Page 2


Features PD70211 PD Controller with Switching Reg ulator for AF/AT/UPOE/HDBaseT/4-pair Po E Applications f Description PD70211 i s an advanced PD Interface IC with inte grated switching (PWM) regulator contro l for Powered Devices in PoE applicatio ns. It supports IEEE802.3af, IEEE802at, HDBaseT and general 2/4-pair configura tions. The PD70211 front-end includes a n advanced classification block that su pports 2, 3, 4, and 6 event classificat ion. Using the SUPP_Sx pins, it also id entifies which of the four pairs of the cable actually receives power and gene rates appropriate flags. The IC feature s an internal bleeder for discharging t he input capacitor of the DC/DC convert er rapidly, so as to ensure fast re-det ection and port power-up in case of sud den removal and re-insertion of the Eth ernet cable into the RJ-45. The advance d PWM currentmode section supports sync hronous Flyback and Active clamp Forwar d topologies, as well as Buck, Boost et c. Features  Supports IEEE802.3af/at, HDBaseT and other 2pair.
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