UCC2818

アクティブ

10.5V/10V UVLO (低電圧ロックアウト) 搭載、-40℃ ～ 85℃、6kHz ～ 220kHz、CCM (連続導通モード) PFC (力率補正) コントローラ

ご注文はこちら

データシート

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UCC2818

アクティブ

データシート

ご注文はこちら

製品詳細

Vin (max) (V)

18

Operating temperature range (°C)

-40 to 85

Control mode

CCM

Topology

Boost, PFC controller

Rating

Catalog

Features

< 150W Applications, > 750W Applications, Average current mode, Continuous Control Mode, Enable, OVP, Overvoltage protection

Duty cycle (max) (%)

100

Vin (max) (V)

18

Operating temperature range (°C)

-40 to 85

Control mode

CCM

Topology

Boost, PFC controller

Rating

Catalog

Features

< 150W Applications, > 750W Applications, Average current mode, Continuous Control Mode, Enable, OVP, Overvoltage protection

Duty cycle (max) (%)

100

PDIP (N)

16

181.42 mm² 19.3 x 9.4

SOIC (D)

16

59.4 mm² 9.9 x 6

SOIC (DW)

16

106.09 mm² 10.3 x 10.3

TSSOP (PW)

16

32 mm² 5 x 6.4

Controls Boost Preregulator to Near-Unity Power Factor
Limits Line Distortion
World Wide Line Operation
Over-Voltage Protection
Accurate Power Limiting
Average Current Mode Control
Improved Noise Immunity
Improved Feed-Forward Line Regulation
Leading Edge Modulation
150-µA Typical Start-Up Current
Low-Power BiCMOS Operation
Up to 18-V Operation
Frequency Range 6 kHz to 220 kHz

Controls Boost Preregulator to Near-Unity Power Factor
Limits Line Distortion
World Wide Line Operation
Over-Voltage Protection
Accurate Power Limiting
Average Current Mode Control
Improved Noise Immunity
Improved Feed-Forward Line Regulation
Leading Edge Modulation
150-µA Typical Start-Up Current
Low-Power BiCMOS Operation
Up to 18-V Operation
Frequency Range 6 kHz to 220 kHz

The UCCx817 and UCCx818 family provides all the functions necessary for active power factor-corrected preregulators. The controller achieves near-unity power factor by shaping the AC input line current waveform to correspond to that of the AC input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.

Designed in Texas Instrument’s BiCMOS process, the UCCx817 and UCCx818 offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry, a leading-edge modulation technique to reduce ripple current in the bulk capacitor, and an improved, low-offset (±2-mV) current amplifier to reduce distortion at light load conditions.

The UCCx817 and UCCx818 family provides all the functions necessary for active power factor-corrected preregulators. The controller achieves near-unity power factor by shaping the AC input line current waveform to correspond to that of the AC input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.

Designed in Texas Instrument’s BiCMOS process, the UCCx817 and UCCx818 offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry, a leading-edge modulation technique to reduce ripple current in the bulk capacitor, and an improved, low-offset (±2-mV) current amplifier to reduce distortion at light load conditions.

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