UC1867Q

更新时间： 2024-11-14 04:27:11

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
页数	文件大小	规格书
9页	428K
描述
Resonant-Mode Power Supply Controllers

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中文翻译

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技术参数
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UC1867Q 技术参数

生命周期：	Obsolete	零件包装代码：	QLCC
包装说明：	QCCJ,	针数：	20
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.84
Is Samacsys：	N	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
控制模式：	CURRENT-MODE	控制技术：	RESONANT CONTROL
最大输入电压：	20 V	最小输入电压：	12 V
标称输入电压：	12 V	JESD-30 代码：	S-PQCC-J20
长度：	8.965 mm	功能数量：	1
端子数量：	20	最高工作温度：	125 °C
最低工作温度：	-55 °C	最大输出电流：	1 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCJ
封装形状：	SQUARE	封装形式：	CHIP CARRIER
认证状态：	Not Qualified	座面最大高度：	4.57 mm
表面贴装：	YES	切换器配置：	PUSH-PULL
最大切换频率：	1000 kHz	温度等级：	MILITARY
端子形式：	J BEND	端子节距：	1.27 mm
端子位置：	QUAD	宽度：	8.965 mm
Base Number Matches：	1

UC1867Q 数据手册

application

INFO

UC1861-1868

UC2861-2868

UC3861-3868

available

Resonant-Mode Power Supply Controllers

FEATURES

DESCRIPTION

• Controls Zero Current Switched (ZCS) The UC1861-1868 family of ICs is optimized for the control of Zero Current

or Zero Voltage Switched (ZVS)

Quasi-Resonant Converters

Switched and Zero Voltage Switched quasi-resonant converters. Differ-

ences between members of this device family result from the various com-

binations of UVLO thresholds and output options. Additionally, the

one-shot pulse steering logic is configured to program either on-time for

ZCS systems (UC1865-1868), or off-time for ZVS applications (UC1861-

1864).

• Zero-Crossing Terminated One-Shot

Timer

• Precision 1%, Soft-Started 5V

Reference

The primary control blocks implemented include an error amplifier to com-

pensate the overall system loop and to drive a voltage controlled oscillator

(VCO), featuring programmable minimum and maximum frequencies. Trig-

gered by the VCO, the one-shot generates pulses of a programmed maxi-

mum width, which can be modulated by the Zero Detection comparator.

This circuit facilitates “true” zero current or voltage switching over various

line, load, and temperature changes, and is also able to accommodate the

resonant components' initial tolerances.

• Programmable Restart Delay

Following Fault

• Voltage-Controlled Oscillator (VCO)

with Programmable Minimum and

Maximum Frequencies from 10kHz to

1MHz

• Low Start-Up Current (150µA typical)

• Dual 1 Amp Peak FET Drivers

Under-Voltage Lockout is incorporated to facilitate safe starts upon

power-up. The supply current during the under-voltage lockout period is

typically less than 150µA, and the outputs are actively forced to the low

• UVLO Option for Off-Line or DC/DC

Applications

state.

(continued)

Device

UVLO

Outputs

“Fixed”

1861

1862

1863

36014

1864

36014

1865

1866

1867

36014

1868

36014

16.5/10.5

Alternating

Off Time

16.5/10.5

Parallel

Off Time

16.5/10.5

Alternating

On Time

16.5/10.5

Parallel

On Time

Alternating

Off Time

Parallel

Off Time

Alternating

On Time

Parallel

On Time

BLOCK DIAGRAM

UDG-92018

Pin numbers refer to the J and N packages.

SLUS289 - OCTOBER 1998

12 3 4 5 6 7...9

中文翻译

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与UC1867Q相关器件

型号	品牌	获取价格	描述	数据表
UC1867QTR	TI	获取价格	Resonant-Mode Power Supply Controllers
UC1868	TI	获取价格	Resonant-Mode Power Supply Controllers
UC1868DW	TI	获取价格	Resonant-Mode Power Supply Controllers
UC1868DWTR	TI	获取价格	Resonant-Mode Power Supply Controllers
UC1868J	TI	获取价格	Resonant-Mode Power Supply Controllers
UC1868JTR	TI	获取价格	Resonant-Mode Power Supply Controllers
UC1868L	TI	获取价格	Resonant-Mode Power Supply Controllers
UC1868LTR	TI	获取价格	Resonant-Mode Power Supply Controllers
UC1868N	TI	获取价格	Resonant-Mode Power Supply Controllers
UC1868NTR	TI	获取价格	Resonant-Mode Power Supply Controllers

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