MAX5982CETE+ Maxim Integrated Products, MAX5982CETE+ Datasheet - Page 7

• Manufacturer Part Number: MAX5982CETE+
• Description: Power Switch ICs - POE / LAN PDIC, up to 70W
• Manufacturer: Maxim Integrated Products

Specifications of MAX5982CETE+

• Lead Free Status / Rohs Status: Details

Controllers with
IEEE 802.3af/at-Compliant, Powered Device Interface
MAX5982A/
MAX5982B
5, 6
7, 8
10
1
2
3
4
9
N.C.
V
DET
I.C.
DD
1
2
3
4
PIN
MAX5982C
1, 13–16
+
_______________________________________________________________________________________
16
*EP
5
5, 6
7, 8
10
2
3
4
9
MAX5982A
MAX5982B
15
6
TQFN
14
7
NAME
WAD
N.C.
V
DET
RTN
V
I.C.
PG
DD
SS
13
8
No Connection. Not internally connected.
Positive Supply Input. Connect a 68nF (min) bypass capacitor between V
Detection Resistor Input. Connect a signature resistor (R
Internally Connected. Leave unconnected.
Negative Supply Input. V
power MOSFET.
Drain of Isolation MOSFET. RTN connects to the drain of the integrated isolation
n-channel power MOSFET. Connect RTN to the downstream DC-DC converter ground as
shown in the Typical Application Circuit.
Wall Power Adapter Detector Input. Wall adapter detection is enabled the moment
V
WAD to RTN is greater than 9V. When a wall power adapter is present, the isolation
n-channel power MOSFET turns off and 2EC current sink turns on. Connect WAD directly
to RTN when the wall power adapter or other auxiliary power source is not used.
Open-Drain, Power-Good Indicator Output. PG sinks 230FA to disable the downstream
DC-DC converter while turning on the hot-swap MOSFET switch. PG current sink is
disabled during detection, classification, and in the steady-state power mode. The PG
current sink is turned on to disable the downstream DC-DC converter when the device is
in sleep mode.
Integrated 70W High-Power MOSFET
DD
12
11
10
9
- V
CLS
2EC
PG
WAD
SS
crosses the mark event threshold. Detection occurs when the voltage from
*CONNECT EP TO V
TOP VIEW
SS
connects to the source of the integrated isolation n-channel
SS
.
N.C.
V
DET
I.C.
DD
1
2
3
4
FUNCTION
+
16
*EP
5
MAX5982C
15
6
TQFN
DET
Pin Configurations
14
7
= 24.9kI) from DET to V
Pin Description
13
8
12
11
10
9
DD
CLS
2EC
PG
WAD
and V
SS
.
DD
.
7