Datasheet > AFL2805DX/HBPBF

AFL2805DX/HBPBF

更新时间： 2025-08-23 18:58:47

品牌	Logo	应用领域
英飞凌 - INFINEON		输出元件
页数	文件大小	规格书
11页	123K
描述
DC-DC Regulated Power Supply Module, 2 Output, 80W, Hybrid, HERMETIC SEALED PACKAGE-12

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AFL2805DX/HBPBF 数据手册

AFL28XXD Series

Internally, these ports differ slightly in their function. In use,

a low on Enable 1 completely shuts down all circuits in the

converter, while a low on Enable 2 shuts down the second-

ary side while altering the controller duty cycle to near zero.

Externally, the use of either port is transparent to the user

save for minor differences in idle current. (See specification

table).

level of +2.0 volts. The sync output of another converter

which has been designated as the master oscillator pro-

vides a convenient frequency source for this mode of op-

eration. When external synchronization is not indicted, the

sync in pin should be left open (unconnected )thereby per-

mitting the converter to operate at its’ own internally set

frequency.

Synchronization of Multiple Converters

The sync output signal is a continuous pulse train set at

550 ±50 KHz, with a duty cycle of 15 ±5%. This signal is

referenced to the input return and has been tailored to be

compatible with the AFL sync input port. Transition times

are less than 100 ns and the low level output impedance is

less than 50 ohms. This signal is active when the DC input

voltage is within the specified operating range and the con-

verter is not inhibited. This synch output has adequate

drive reserve to synchronize at least five additional con-

verters. A typical synchronization connection option is il-

lustrated in Figure III.

When operating multiple converters, system requirements

often dictate operation of the converters at a common fre-

quency. To accommodate this requirement, the AFL series

converters provide both a synchronization input and out-

put.

The sync input port permits synchronization of an AFL co-

nverter to any compatible external frequency source oper-

ating between 500 and 700 KHz. This input signal should

be referenced to the input return and have a 10% to 90%

duty cycle. Compatibility requires transition times less th an

100 ns, maximum low level of +0.8 volts and a minimum high

Figure III. Preferred Connection for Parallel Operation

Enable

Power

Input

Vin

Rtn

Trim

Case

Enable

AFL

Output

Return

Output

Sync Out

Sync In

Optional

Synchronization

Connection

Share Bus

Enable

Vin

Rtn

Trim

Case

Enable

Output

Return

Output

to Negative Load

to Positive Load

Sync Out

Sync In

Enable

Vin

Rtn

Trim

Case

AFL

Enable

Output

Return

Output

Sync Out

Sync In

(Other Converters)

ture of the AFL series operating in the parallel mode is that

in addition to sharing the current, the stress induced by

temperature will also be shared. Thus if one member of a

paralleled set is operating at a higher case temperature, the

current it provides to the load will be reduced as compensa-

tion for the temperature induced stress on that device.

Parallel Operation-Current and Stress Sharing

Figure III. illustrates the preferred connection scheme for

operation of a set of AFL converters with outputs operating

in parallel. Use of this connection permits equal current shar-

ing among the members of a set whose load current ex-

ceeds the capacity of an individual AFL. An important fea-

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与AFL2805DX/HBPBF相关器件

型号	品牌	获取价格	描述	数据表
AFL2805DXCH	INFINEON	获取价格	270V Input, Single Output
AFL2805DXES	INFINEON	获取价格	HYBRID-HIGH RELIABILITY DC/DC CONVERTER
AFL2805DXHB	INFINEON	获取价格	270V Input, Single Output
AFL2805DXPBF	INFINEON	获取价格	DC-DC Regulated Power Supply Module, 2 Output, 80W, Hybrid, HERMETIC SEALED PACKAGE-12
AFL2805DY	INFINEON	获取价格	ADVANCED ANALOG HIGH RELIABILITY HYBRID DC/DC CONVERTERS
AFL2805DY-CH	INFINEON	获取价格	ADVANCED ANALOG HIGH RELIABILITY HYBRID DC/DC CONVERTERS
AFL2805DY-ES	INFINEON	获取价格	ADVANCED ANALOG HIGH RELIABILITY HYBRID DC/DC CONVERTERS
AFL2805DY-HB	INFINEON	获取价格	ADVANCED ANALOG HIGH RELIABILITY HYBRID DC/DC CONVERTERS
AFL2805DY/CH	INFINEON	获取价格	ADVANCED ANALOG HIGH RELIABILITY HYBRID DC/DC CONVERTERS
AFL2805DY/CHPBF	INFINEON	获取价格	DC-DC Regulated Power Supply Module, 2 Output, 80W, Hybrid, HERMETIC SEALED PACKAGE-12

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