Datasheet > TOP222GN

TOP222GN

更新时间： 2024-01-17 22:42:05

品牌	Logo	应用领域
帕沃英蒂格盛 - POWERINT		开关光电二极管
页数	文件大小	规格书
20页	1537K
描述
Three-Terminal Off-Line PWM Switch

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TOP222GN 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	SOP,
针数：	8	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
Factory Lead Time：	14 weeks	风险等级：	8.37
模拟集成电路 - 其他类型：	SWITCHING REGULATOR	控制模式：	VOLTAGE-MODE
控制技术：	PULSE WIDTH MODULATION	JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e3	长度：	9.59 mm
湿度敏感等级：	4	功能数量：	1
端子数量：	8	最高工作温度：	125 °C
最低工作温度：	-40 °C	最大输出电流：	0.55 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	250	认证状态：	Not Qualified
座面最大高度：	3.73 mm	表面贴装：	YES
切换器配置：	BOOST	最大切换频率：	110 kHz
技术：	CMOS	温度等级：	AUTOMOTIVE
端子面层：	PURE MATTE TIN	端子形式：	GULL WING
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：	40	宽度：	6.35 mm
Base Number Matches：	1

TOP222GN 数据手册

TOP221-227

Key Application Considerations

General Guidelines

• Short interruptions of AC power may cause TOPSwitch

to enter the 8-count auto-restart cycle before starting

again. This is because the input energy storage capaci-

tors are not completely discharged and the CONTROL

pin capacitance has not discharged below the internal

power-up reset voltage.

• Keep the SOURCE pin length very short. Use a Kelvin

connection to the SOURCE pin for the CONTROL pin by-

pass capacitor. Use single point grounding techniques

at the SOURCE pin as shown in Figure 9.

• In some cases, minimum loading may be necessary to

keep a lightly loaded or unloaded output voltage within

the desired range due to the minimum ON-time.

• Minimize peak voltage and ringing on the DRAIN volt-

age at turn-off. Use a Zener or TVS Zener diode to

clamp the drain voltage below the breakdown voltage

rating of TOPSwitch under all conditions, including start-

up and overload. The maximum recommended clamp

Zener voltage for the TOP2XX series is 200 V and the

corresponding maximum reﬂected output voltage on the

primary is 135 V. Please see Step 4: AN-16 in the 1996-

97 Data Book and Design Guide or on our Web site.

Replacing TOPSwitch with TOPSwitch-II

There is no external latching shutdown function in

TOPSwitch-II. Otherwise, the functionality of the TOPSwitch-II

devices is same as that of the TOPSwitch family. However,

before considering TOPSwitch-II as a 'drop in' replace-

ment in an existing TOPSwitch design, the design should

be veriﬁed as described below.

• The transformer should be designed such that the rate

of change of drain current due to transformer saturation

is within the absolute maximum speciﬁcation (∆I_Din

100 ns before turn off as shown in Figure 13). As a

guideline, for most common transformer cores, this can

be achieved by maintaining the Peak Flux Density (at

maximum I_LIMITcurrent) below 4200 Gauss (420 mT).

The transformer spreadsheets Rev. 2.1 (or later) for con-

tinuous and Rev.1.0 (or later) for discontinuous conduc-

tion mode provide the necessary information.

The new TOPSwitch-II family offers more power capability

than the original TOPSwitch family for the same MOSFET

_DS(ON). Therefore, the original TOPSwitch design must

be reviewed to make sure that the selected TOPSwitch-II

replacement device and other primary components are not

over stressed under abnormal conditions.

The following veriﬁcation steps are recommended:

• Do not plug TOPSwitch into a “hot” IC socket dur-

ing test. External CONTROL pin capacitance may be

charged to excessive voltage and cause TOPSwitch

damage.

• Check the transformer design to make sure that it

meets the ∆I_Dspeciﬁcation as outlined in the General

Guidelines section above.

• While performing TOPSwitch device tests, do not

exceed maximum CONTROL pin voltage of 9 V or maxi-

mum CONTROL pin current of 100 mA.

• Thermal: Higher power capability of the TOPSwitch-II

would in many instances allow use of a smaller MOS-

FET device (higher R_DS(ON)) for reduced cost. This may

affect TOPSwitch power dissipation and power supply

efﬁciency. Therefore thermal performance of the power

supply must be veriﬁed with the selected TOPSwitch-II

device.

• Under some conditions, externally provided bias or

supply current driven into the CONTROL pin can hold

the TOPSwitch in one of the 8 auto-restart cycles in-

deﬁnitely and prevent starting. To avoid this problem when

doing bench evaluations, it is recommended that the V_C

power supply be turned on before the DRAIN voltage is

applied. TOPSwitch can also be reset by shorting the

CONTROL pin to the SOURCE pin momentarily.

• Clamp Voltage: Reﬂected and Clamp voltages should

be veriﬁed not to exceed recommended maximums

for the TOP2XX Series: 135 V Reﬂected/200 V Clamp.

Please see Step 4: AN-16 in the Data Book and Design

Guide and readme.txt ﬁle attached to the transformer

design spreadsheets.

• CONTROL pin currents during auto-restart operation

are much lower at low input voltages (< 36 V) which in-

creases the auto-restart cycle time (see the I_Cvs. DRAIN

Voltage Characteristic curve).

• Agency Approval: Migrating to TOPSwitch-II may

require agency re-approval.

Rev. G 08/16

www.power.com

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TOP222GN 替代型号

型号	品牌	替代类型	描述	数据表
TOP222GN	POWERINT	当前型号	Three-Terminal Off-Line PWM Switch
TOP222YN	POWERINT	功能相似	Three-Terminal Off-Line PWM Switch
TOP224YN	POWERINT	功能相似	Three-terminal Off-line PWM Switch
TNY267PN	POWERINT	功能相似	Enhanced, Energy Efficient, Low Power Off-line Switcher

与TOP222GN相关器件

型号	品牌	获取价格	描述	数据表
TOP222GNTL	POWERINT	获取价格	Three-Terminal Off-Line PWM Switch
TOP222P	POWERINT	获取价格	Three-terminal Off-line PWM Switch
TOP222PN	POWERINT	获取价格	Three-terminal Off-line PWM Switch
TOP222PNTL	POWERINT	获取价格	Three-Terminal Off-Line PWM Switch
TOP222Y	POWERINT	获取价格	Three-terminal Off-line PWM Switch
TOP222YN	POWERINT	获取价格	Three-Terminal Off-Line PWM Switch
TOP222YNTL	POWERINT	获取价格	Three-Terminal Off-Line PWM Switch
TOP223	POWERINT	获取价格	Three-Terminal Off-Line PWM Switch
TOP223G	POWERINT	获取价格	Three-terminal Off-line PWM Switch
TOP223GN	POWERINT	获取价格	Three-Terminal Off-Line PWM Switch

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