HR122-2812

更新时间： 2024-11-06 04:22:07

品牌	Logo	应用领域
CRANE		转换器模拟IC 信号电路输出元件输入元件
页数	文件大小	规格书
6页	91K
描述
DC/DC CONVERTERS 28 VOLT INPUT

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技术参数
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HR122-2812 技术参数

是否Rohs认证：	符合	生命周期：	Not Recommended
包装说明：	DIP, DIP8/10,.8,300/200	Reach Compliance Code：	compliant
风险等级：	5.57	Is Samacsys：	N
其他特性：	-12V OUTPUT ALSO AVAILABLE	模拟集成电路 - 其他类型：	DC-DC REGULATED POWER SUPPLY MODULE
效率（主输出）：	81%	最大输入电压：	32 V
最小输入电压：	16 V	标称输入电压：	28 V
JESD-30 代码：	R-MDMA-P8	JESD-609代码：	e3
最大电网调整率：	0.208%	最大负载调整率：	0.416%
功能数量：	1	输出次数：	2
端子数量：	8	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出电流：	1 A
最大输出电压：	12.12 V	最小输出电压：	11.88 V
标称输出电压：	12 V	封装主体材料：	METAL
封装代码：	DIP	封装等效代码：	DIP8/10,.8,300/200
封装形状：	RECTANGULAR	封装形式：	MICROELECTRONIC ASSEMBLY
峰值回流温度（摄氏度）：	NOT SPECIFIED	保护：	CURRENT
认证状态：	Not Qualified	子类别：	Other Analog ICs
表面贴装：	NO	技术：	HYBRID
温度等级：	INDUSTRIAL	端子面层：	Tin (Sn)
端子形式：	PIN/PEG	端子节距：	5.08 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
最大总功率输出：	12 W	微调/可调输出：	NO
Base Number Matches：	1

HR122-2812 数据手册

FEATURES

• –40°C to +85°C operation

HR120 SERIES

12 WATT

DC/DC CONVERTERS

28 VOLT NPUT

• 16 to 40 VDC input

(19 to 40 VDC input for

15 volt output models)

• Fully Isolated

MODELS

VDC OUTPUT

• Optocoupler feedback

• 600 kHz typical operating frequency

• Topology – Single Ended Forward

• 50 V for up to 50 ms transient protection

• Inhibit function

SINGLE

DUAL

±12

±15

• Indefinite short circuit protection

• Up to 83% efficiency

Size (max.): 1.460 x 1.130 x 0.330 inches (37.08 x 28.70 x 8.38 mm)

See Section B8, case E1 for dimensions.

Weight:

21 grams typical.

Screening: Standard only. See Section C2 for screening description.

DESCRIPTION

The HR120 Series™ of DC/DC converters offers up to 12 watts of

power from single or dual outputs in a single package over a –40°C

to +85°C temperature range. Thick film hybrid manufacturing tech-

nology produces high levels of miniaturization, giving the HR120

Series converters a low profile (0.330 inch), small board area (1.65

Indefinite short circuit protection and overload protection are

provided by sensing output load current and restricting the output

current to approximately 125% of full load output current. Since the

output current is sensed in the secondary stage, the result is a

predictable, constant output current control with no foldback char-

acteristics. HR120 converters are provided with internal filtering

elements on both the input and output to help reduce the need for

external components.

square inches), and high power density (22 watt/in ).

The parts are packaged in sealed steel enclosures, making them

ideal for use in high reliability applications. Each unit is guaranteed

to pass a hermeticity test with a maximum leak rate of 0.001 atm-

cc/sec.

WIDE VOLTAGE RANGE

The 5 and 12 volt output models provide full power operation over

the input voltage range of 16 to 40 volts (19 to 40 volts for 15 volt

output models). Operation below 16 volts (or below 19 volts for the

15 volt output models), including operation in MIL-STD-704E emer-

gency power conditions, is possible with derated output power.

Please refer to the low voltage drop-out graphs, Figures 9 and 10.

DESIGN METHODOLOGY

The HR120 converters are switching regulators which use a quasi-

square wave, single ended forward converter design with a nominal

switching frequency of 600 kHz. Isolation between input and output

circuits is provided with a transformer in the forward power loop and

a temperature insensitive optical link in the feedback control loop.

Output regulation is accomplished with constant frequency pulse

width modulation. Both line and load regulation are typically within

10 mV.

The HR120 Series provides full power operation at case tempera-

tures from –40°C up to +85°C. Depending on operating levels, air

flow, and ambient temperature, heat sinking may be required.

INHIBIT FEATURE

On dual output models, the positive output is independently regu-

lated and the negative output is cross-regulated. Figures 7 and 8

illustrate what effects load changes have on the negative output.

An inhibit terminal is provided that can be used to disable internal

switching, resulting in a very low quiescent input current. An open

collector TTL compatible low (≤0.8 V) is required to control the

inhibit function. This level may be supplied by an open collector gate

since the inhibit pin is provided with an internal pull-up resistor.

B4-47

12 3 4 5 6

中文翻译

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