Data Sheet

LTC9105

TYPICAL APPLICATION

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Figure 26. LTC9105 IEEE 802.3bt Powered Device with Telemetry and Isolated I2C

RELATED PARTS

Table 12. Related Parts

PART NUMBER

DESCRIPTION

COMMENTS

LTC9101-1/LTC9102/

LTC9103

48-Port IEEE 802.3bt PoE PSE Controller

Lowest in Industry Power Path Dissipation with 0.1Ω Sense, Transformer Isolated

Communications

LTC4292/LTC4291-1

4-Port IEEE 802.3bt PoE PSE Controller

Transformer Isolation, 14-bit Current Monitoring per Port with Programmable Current Limit,

Supports Type 1-4 PDs

MAX5996

IEEE 802.3bt-Compliant PD Controller

Power Telemetry and Power/Current Limit. Internal MOSFET.

MAX5995

IEEE 802.3bt-Compliant, PD Controller

Integrated 91W High-Power MOSFET

LT4293

LTPoE++®/IEEE 802.3bt PD Controller

External Switch, LTPoE++ and IEEE 802.3bt Support, Configurable Class and AUX Support

LT4294

IEEE 802.3bt PD Controller

External Switch, IEEE 802.3bt Support, Configurable Class and AUX Support

LT4295

IEEE 802.3bt PD with Forward/Flyback

Switching Regulator Controller

External Switch, Configurable Class, Forward or No-Opto Flyback Operation, Frequency, PG/SG

Delays, Soft-Start, and Aux Support as Low as 9V. Includes Housekeeping Buck, Slope

Compensation

LTC4290/LTC4271

8-Port PoE/PoE+/LTPoE++ PSE Controller

Transformer Isolation, Supports IEEE 802.3af, IEEE 802.3at and LTPoE++ PDs

LTC4263

Single IEEE 802.3af PSE Controller

Internal MOSFET Switch

LTC4265

IEEE 802.3at PD Controller

Internal 100V, 1A Switch, 2-Event Classification Recognition

LTC4266

Quad IEEE 802.3at PoE PSE Controller

With Programmable ICUT/ILIM, 2-Event Classification, and Port Current and Voltage Monitoring

LTC4267

IEEE 802.3af PD Controller with Integrated

Switching Regulator

Internal 100V, 400mA Switch, Dual Inrush Current, Programmable Class

LTC4270/LTC4271

12-Port PoE/PoE+/LTPoE++ PSE Controller

Transformer Isolation, Supports Type 1, Type 2 and LTPoE++ PDs

LTC4278

IEEE 802.3at PD Controller with Integrated

Flyback Switching Regulator

2-Event Classification, Programmable Class, Synchronous No-Opto Flyback Controller, 50kHz to

250kHz, 12V Aux Support

LTC4279

Single PoE/PoE+/LTPoE++ PSE Controller

Supports IEEE 802.3af, IEEE 802.3at, LTPoE++ and Proprietary PDs

MAX5974A/B/C/D

Active-Clamped, Spread-Spectrum, Current-

Mode PWM Controllers

Regulation Without Optocoupler (A/B Variants), Internal 1% Error Amplifier, Programmable PWM

Soft-Start

ADP1074

Isolated, Synchronous Forward Controller

with Active Clamp and iCoupler

®

Up to 5kV Dielectric Isolation, Wide Voltage Supply Range, Programmable Frequency (50kHz to

600kHz)