UCC3809-1

Name: UCC3809-1
Brand: TI
SKU: UCC3809-1
Price: 1.072 USD

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具有 10V/8V UVLO、温度范围为 0°C 至 70°C 的经济型初级侧控制器

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数据表

document-pdfAcrobat Economy Primary Side Controller 数据表 (Rev. B) (英语)

UCC3809-1

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数据表

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米6体育平台手机版_好二三四详情

Vin (max) (V)

19

Operating temperature range (°C)

0 to 70

Control mode

Current

Topology

Boost, Buck, Flyback, Forward

Rating

Catalog

Features

Adjustable switching frequency, Multi-topology, Soft start

Duty cycle (max) (%)

70

Vin (max) (V)

19

Operating temperature range (°C)

0 to 70

Control mode

Current

Topology

Boost, Buck, Flyback, Forward

Rating

Catalog

Features

Adjustable switching frequency, Multi-topology, Soft start

Duty cycle (max) (%)

70

SOIC (D)

8

29.4 mm² 4.9 x 6

VSSOP (DGK)

8

14.7 mm² 3 x 4.9

User Programmable Soft Start With Active Low Shutdown
User Programmable Maximum Duty Cycle
Accessible 5V Reference
Undervoltage Lockout
Operation to 1MHz
0.4A Source/0.8A Sink FET Driver
Low 100µA Startup Current

User Programmable Soft Start With Active Low Shutdown
User Programmable Maximum Duty Cycle
Accessible 5V Reference
Undervoltage Lockout
Operation to 1MHz
0.4A Source/0.8A Sink FET Driver
Low 100µA Startup Current

The UCC3809 family of BCDMOS economy low power integrated circuits contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count. Internally implemented circuits include undervoltage lockout featuring startup current less than 100µA, a user accessible voltage reference, logic to ensure latched operation, a PWM comparator, and a totem pole output stage to sink or source peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off state.

Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3809 family also features full cycle soft start.

The family has UVLO thresholds and hysteresis levels for off-line and DC-to-DC systems as shown in the table to the left.

The UCC3809 and the UCC2809 are offered in the 8 pin SOIC (D), PDIP (N), TSSOP (PW), and MSOP (P) packages. The small TSSOP and MSOP packages make the device ideal for applications where board space and height are at a premium.

The UCC3809 family of BCDMOS economy low power integrated circuits contains all the control and drive circuitry required for off-line and isolated DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count. Internally implemented circuits include undervoltage lockout featuring startup current less than 100µA, a user accessible voltage reference, logic to ensure latched operation, a PWM comparator, and a totem pole output stage to sink or source peak current. The output stage, suitable for driving N-Channel MOSFETs, is low in the off state.

Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3809 family also features full cycle soft start.

The family has UVLO thresholds and hysteresis levels for off-line and DC-to-DC systems as shown in the table to the left.

The UCC3809 and the UCC2809 are offered in the 8 pin SOIC (D), PDIP (N), TSSOP (PW), and MSOP (P) packages. The small TSSOP and MSOP packages make the device ideal for applications where board space and height are at a premium.

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工业类 30V 低功耗电流模式 PWM 控制器，8.4V/7.6V UVLO，100% 占空比 Supports Buck, Boost, Flyback topologies

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	类型	标题	下载最新的英语版本	日期
*	数据表	Economy Primary Side Controller 数据表 (Rev. B)		2004年 11月 19日
	选择指南	电源管理指南 2018 (Rev. K)		2018年 7月 31日
	选择指南	电源管理指南 2018 (Rev. R)		2018年 6月 25日
	应用手册	DN-62 开关电源拓扑电压模式与电流模式	英语版	2010年 7月 28日
	用户指南	U-165 参考设计：隔离式 50W 反向转换器，使用	英语版	2010年 7月 28日
	用户指南	10-Watt Flyback Converter Utilizing the UCC3809 (Rev. B)		2001年 9月 14日
	应用手册	Programming the UCC3809 for 90% Maximum Duty Cycle Clamp		2001年 6月 4日
	应用手册	DN-89 Comparing the UC3842, UCC3802, and UCC3809 Primary Side PWM Controllers		1999年 9月 5日
	应用手册	U-165 Design Rvw: Isolated 50 W Flyback Converter Using UCC3809 and UC3965		1999年 9月 5日
	应用手册	U-168 Implementing a Practical Off-line Lithium-Ion Charger Using the UCC3809		1999年 9月 5日

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评估板

UCC3809EVM — UCC3809 评估模块

The UCC3809EVM evaluation module is an isolated 10-W, 3.3-V converter designed for telecom input voltages, nominally -48 Vdc, but ranging from -32 Vdc to -75 Vdc. The UCC3809 economy primary-side controller is used as the pulse-width modulator (PWM), combined with a TLV431 low-voltage (...)

用户指南: PDF