UC28023N

更新时间： 2024-02-08 08:30:11

品牌	Logo	应用领域
德州仪器 - TI		稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数	文件大小	规格书
18页	393K
描述
ECONOMY HIGH-SPEED PWM CONTROLLER

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技术参数
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UC28023N 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	DIP, DIP16,.3	针数：	16
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	1 week
风险等级：	5.74	Is Samacsys：	N
其他特性：	CAN ALSO BE CONFIGURED IN PEAK CURRENT OR AVERAGE CURRENT MODE	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
控制模式：	VOLTAGE-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	30 V	最小输入电压：	9 V
标称输入电压：	15 V	JESD-30 代码：	R-PDIP-T16
JESD-609代码：	e4	长度：	19.305 mm
功能数量：	1	端子数量：	16
最高工作温度：	105 °C	最低工作温度：	-40 °C
最大输出电流：	2 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	DIP	封装等效代码：	DIP16,.3
封装形状：	RECTANGULAR	封装形式：	IN-LINE
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
座面最大高度：	5.08 mm	子类别：	Switching Regulator or Controllers
表面贴装：	NO	切换器配置：	PUSH-PULL
最大切换频率：	1000 kHz	温度等级：	INDUSTRIAL
端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	7.62 mm
Base Number Matches：	1

UC28023N 数据手册

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SLUS557B − MARCH 2003 − REVISED APRIL 2004

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FEATURES

DESCRIPTION

Peak Current Mode, Average Current Mode,

or Voltage Mode (with Feed-Forward) Control

Methods

The UC28023 and UC28025 are fixed-frequency

PWM controllers optimized for high-frequency

switched-mode power supply applications. The

UC28023 is a single output PWM for single-ended

topologies while the UC28025 offers dual

alternating outputs for double-ended and full

bridge topologies.

Practical Operation Up to 1 MHz

50-ns Propagation Delay to Output

1.5-A Peak Totem Pole Outputs

9-V to 30-V Nominal Operational Voltage

Range

Targeted for cost effective solutions with minimal

external components, UC2802x include an

oscillator, a temperature compensated reference,

a wide band width error amplifier, a high-speed

current-sense comparator and high-current

active-high totem-pole outputs to directly drive

external MOSFETs.

Wide Bandwidth Error Amplifier

Fully Latched Logic with Double Pulse

Suppression

Pulse-by-Pulse Current Limiting

Programmable Maximum Duty Cycle Control

Under−Voltage Lockout with Hysteresis

Trimmed 5.1-V Reference with UVLO

Same Functionality as UC3823 and UC3825

Protection circuitry includes a current limit

comparator with a 1-V threshold, a TTL

compatible shutdown port, and a soft-start pin

which will double as a maximum duty cycle clamp.

The logic is fully latched to provide jitter free

operation and prohibit multiple pulses at an

output. An undervoltage lockout section with

800 mV of hysteresis assures low start-up

current. During undervoltage lockout, the outputs

are high impedance. Particular care was given to

minimizing propagation delays through the

comparators and logic circuitry while maximizing

bandwidth and slew rate of the error amplifier.

APPLICATIONS

Off-Line and DC/DC Power Supplies

Converters Using Voltage Mode, Peak

Current Mode, or Average Current Mode

Control Methods

Single-Ended or Two-Switch Topology

Designs

Devices are available in the industrial temperature

range of −40°C to 105°C. Package offerings are

16-pin SOICW (DW), or 16-pin PDIP (N)

packages.

ORDERING INFORMATION

PACKAGED DEVICES

OUTPUT

CONFIGURATION

EXTERNAL CURRENT

LIMIT REFERENCE

A =

PDIP-16 (N)

SOICW−16 (DW)

UC28023DW

UC28025DW

Single

Yes

UC28023N

UC28025N

−40°C to 105°C

Dual Alternating

(1)

The DW package are also available taped and reeled. Add an R suffix to the device type (i.e., UC28023DWR (2,000 devices per reel).

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与UC28023N相关器件

型号	品牌	描述	获取价格	数据表
UC28023NG4	TI	2A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDIP16, GREEN, PLASTIC, DIP-16	获取价格
UC28025	TI	ECONOMY HIGH-SPEED PWM CONTROLLER	获取价格
UC28025DW	TI	ECONOMY HIGH-SPEED PWM CONTROLLER	获取价格
UC28025DWG4	TI	经济型双端高速 PWM 控制器 \| DW \| 16 \| -40 to 105	获取价格
UC28025DWR	TI	经济型双端高速 PWM 控制器 \| DW \| 16 \| -40 to 105	获取价格
UC28025DWRG4	TI	Economy High Speed PWM Controllers (Double-ended) 16-SOIC -40 to 105	获取价格

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