STR84145

更新时间： 2024-01-06 21:39:27

品牌	Logo	应用领域
急速微 - ALLEGRO		开关输入元件局域网
页数	文件大小	规格书
8页	87K
描述
LATCHED, UNIVERSAL INPUT-VOLTAGE SWITCHES

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STR84145 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	SIP	包装说明：	ZIP, ZIP5,.18,.04,100TB
针数：	5	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	风险等级：	5.92
Is Samacsys：	N	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
JESD-30 代码：	R-PZFM-T5	JESD-609代码：	e0
功能数量：	1	端子数量：	5
最高工作温度：	125 °C	最低工作温度：	-20 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	ZIP
封装等效代码：	ZIP5,.18,.04,100TB	封装形状：	RECTANGULAR
封装形式：	FLANGE MOUNT	峰值回流温度（摄氏度）：	240
认证状态：	Not Qualified	子类别：	Power Management Circuits
表面贴装：	NO	技术：	BIPOLAR
温度等级：	OTHER	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	ZIG-ZAG	处于峰值回流温度下的最长时间：	NOT SPECIFIED
Base Number Matches：	1

STR84145 数据手册

STR83145 AND

STR84145

INTERIM ISSUE

(subject to change without notice)

August 16, 1994

LATCHED, UNIVERSAL

INPUT-VOLTAGE SWITCHES

Intended for power supplies with universal inputs (85 V to 265 V

rms), the STR83145 and STR84145 latched, universal input-voltage

switches incorporate timing, control, and drive circuitry with a high-

current triac (bidirectional triode thyristor) switch. Each device senses

the applied ac line potential and automatically switches the rectifier and

associated capacitors between a voltage-doubler configuration (for line

voltages to 141 V) and a full-bridge configuration (for line voltages

greater than 149 V). This eliminates the possibility of user error with

adjustable jumpers or switches. Also, the related switch-mode power

stage need operate only over a reduced range of dc input voltages

when compared with "wide input" power supplies using a bridge rectifier

only. The reduction in dc input voltage range permits the use of lower-

voltage capacitors and leads to a reduction in power stage stresses and

power dissipation. The STR83145 and STR84145 differ only in their

maximum ac current rating (10 A and 12 A, respectively).

The internal sensitive-gate triac is switched by a temperature-

compensated constant-current gate driver driven by a 15 kHz pulse

train to reduce power dissipation. The switch-over voltage is accurately

set during manufacture for consistent operation. An user-adjustable

delay is provided to ensure start-up in the full-bridge mode. Once

established (by an input voltage greater than 149 V rms), an integral

latch holds the full-bridge mode to preclude false application of the

doubler mode during brownouts, voltage droops, or missing cycles.

The requirements of low transient thermal impedance and steady-

state thermal resistance are satisfied in a molded, 5-lead single in-line

power package. Similar input-voltage switches, with a switch point of

159 V rms, are also available.

Dwg. PK-005

ABSOLUTE MAXIMUM RATINGS

FEATURES

Repetitive Peak OFF-State Voltage,

V_DRM............................................. 500 V

■ Low Duty Cycle Triac Drive for Minimum Dissipation

Static ON-State Current, I_T(RMS)

■ For Universal Input Operation Between 85 V rms and 265 V rms

STR83145...................................... 10 A

STR84145...................................... 12 A

to 10 A or 12 A

■ Internal Latch Prevents False Mode Switching

■ Internal Sensitive-Gate Power Triac

■ Adjustable Start-Up Delay

■ Accurate 145 V rms Switch-Point Voltage

■ Low External Parts Count

Non-Repetitive Surge ON-State Current, I_TSM

STR83145.................................... 100 A

STR84145.................................... 120 A

Package Power Dissipation,

P_D........................................ See Graph

■ Low Power Dissipation

■ Low-Power External Parts

Triac Junction Temperature, T_J..... +125°C

Frame Temperature, T_M................ +100°C

Always order by complete part number:

Operating Temperature Range,

Part Number Max. On-State Current

T_A............................... -20°C to +125°C

STR83145

STR84145

10 A rms

12 A rms

Storage Temperature Range,

T_stg............................. -40°C to +125°C

™

12 3 4 5 6 7 8

中文翻译

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