Datasheet > TOP222YN

TOP222YN

更新时间： 2022-05-14 22:08:35

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

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TOP222YN 数据手册

TOP221-227

ꢔꢋꢕꢖꢌ ꢗ Pꢘꢁ ꢙꢚꢛꢜ

ꢓꢑꢒ

TOPSwitch-II Family Functional Description

TOPSwitch is a self biased and protected linear control cur-

rent-to-duty cycle converter with an open drain output. High

efﬁciency is achieved through the use of CMOS and integra-

tion of the maximum number of functions possible. CMOS

process signiﬁcantly reduces bias currents as compared to

bipolar or discrete solutions. Integration eliminates external

power resistors used for current sensing and/or supplying

initial start-up bias current.

ꢂꢆꢇꢕ-ꢞꢌꢟꢇꢚꢞꢇ

ꢄ

ꢝ

ꢀ

ꢁꢂꢃ

During normal operation, the duty cycle of the internal output

MOSFET decreases linearly with increasing CONTROL pin

current as shown in Figure 4. To implement all the required

control, bias, and protection functions, the DRAIN and CON-

TROL pins each perform several functions as described

below. Refer to Figure 2 for a block diagram and to Figure 6

for timing and voltage waveforms of the TOPSwitch inte-

grated circuit.

ꢀ

ꢁꢄꢅ

ꢄ

2ꢑꢒ

ꢉꢀ1

ꢄ

ꢍꢐꢂꢏ

ꢉ

ꢀꢁꢂꢃ0ꢄ0ꢂ0ꢅ01ꢆꢇ

Figure 4. Relationship of Duty Cycle to CONTROL Pin Current.

5.7 V

4.7 V

DRAIN

5.7 V

4.7 V

DRAIN

C is the total external capacitance

connected to the CONTROL pin

Figure 5. Start-up Waveforms for (a) Normal Operation and (b) Auto-restart.

Rev. G 08/16

www.power.com

1 234 5 6 7...20

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TOP222YN 替代型号

型号	品牌	替代类型	描述	数据表
TOP222YN	POWERINT	当前型号	Three-Terminal Off-Line PWM Switch
TOP223GN	POWERINT	类似代替	Three-Terminal Off-Line PWM Switch
TOP224GN	POWERINT	类似代替	Three-terminal Off-line PWM Switch
TOP221GN	POWERINT	类似代替	Three-terminal Off-line PWM Switch

与TOP222YN相关器件

型号	品牌	描述	获取价格	数据表
TOP222YNTL	POWERINT	Three-Terminal Off-Line PWM Switch	获取价格
TOP223	POWERINT	Three-Terminal Off-Line PWM Switch	获取价格
TOP223G	POWERINT	Three-terminal Off-line PWM Switch	获取价格
TOP223GN	POWERINT	Three-Terminal Off-Line PWM Switch	获取价格
TOP223GNTL	POWERINT	Three-Terminal Off-Line PWM Switch	获取价格
TOP223P	POWERINT	Three-terminal Off-line PWM Switch	获取价格
TOP223PN	POWERINT	Three-Terminal Off-Line PWM Switch	获取价格
TOP223PNTL	POWERINT	Three-Terminal Off-Line PWM Switch	获取价格
TOP223Y	POWERINT	Three-terminal Off-line PWM Switch	获取价格
TOP223YN	POWERINT	Three-Terminal Off-Line PWM Switch	获取价格