NCP1081DER2G ON Semiconductor, NCP1081DER2G Datasheet - Page 2

• Manufacturer Part Number: NCP1081DER2G
• Description: IC CONV CTLR POE-PD 40W 20-TSSOP
• Manufacturer: ON Semiconductor
• Type: Power over Ethernet Switch (PoE)r

Specifications of NCP1081DER2G

• Applications: Remote Peripherals (Industrial Controls, Cameras, Data Access)
• Internal Switch(s): Yes
• Current Limit: 1.1A
• Voltage - Supply: 0 V ~ 57 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
• Output Voltage: 9 V
• Switching Frequency: 250 KHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Output Power: 40 W
• Input Voltage: 57V
• Supply Current: 510mA
• Digital Ic Case Style: TSSOP
• No. Of Pins: 20
• Duty Cycle (%): 80%
• Uvlo: 38V
• Frequency: 500kHz
• Svhc: No SVHC (20-Jun-2011)
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DC−DC Converter Controller
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†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Ordering Information
Specification Brochure, BRD8011/D.
NCP1081DEG
NCP1081DER2G
Current mode control
Supports isolated and non−isolated DC−DC converter
applications
Internal voltage regulators
Wide duty cycle range with internal slope
compensation circuitry
Programmable oscillator frequency
Programmable soft−start time
VPORTN1,2
VPORTP
INRUSH
Part Number
CLASS
UVLO
ILIM1
CLASSIFICATION
DETECTION
INRUSH
ILIM1
UVLO
TSSOP−20 EP
TSSOP−20 EP
CONTROL & CURRENT
(Pb−Free)
(Pb−Free)
Package
INTERNAL
BANDGAP
HOT SWAP SWITCH
SUPPLY
Figure 1. NCP1081 Block Diagram
VPORT
MONITOR
LIMIT BLOCKS
&
http://onsemi.com
2
Shipping Configuration
2500 / Tape & Reel
THERMAL
DOWN
74 units / Tube
SHUT
VPORTN1
VPORTN2
VPORTP
INRUSH
CLASS
TEST1
TEST2
CONVERTER
UVLO
ILIM1
CONTROL
RTN
DC−DC
VDDL
OSC
PIN DIAGRAM
†
1
(Top View)
Exposed
VDDL
VDDH
VDDL
Pad
5 K
VDDH
VDDL
VDDL
Temperature Range
1.2 V
20 mA
5 mA
−40°C to 85°C
−40°C to 85°C
SS
FB
COMP
VDDL
VDDH
GATE
ARTN
nCLASS_AT
CS
OSC
VDDL
SS
VDDH
FB
COMP
CS
OSC
GATE
nCLASS_AT
ARTN
RTN