AD8382

更新时间： 2024-02-02 05:31:47

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
24页	868K
描述
High Performance 12-Bit, 6-Channel Output, Decimating LCD DecDriver

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技术参数
数据手册

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AD8382 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Active	零件包装代码：	QFN
包装说明：	7 X 7 MM, MO-220-VKKD-2, LFCSP-48	针数：	48
Reach Compliance Code：	unknown	风险等级：	5.77
数据输入模式：	PARALLEL	接口集成电路类型：	LIQUID CRYSTAL DISPLAY DRIVER
JESD-30 代码：	S-PQCC-N48	JESD-609代码：	e0
长度：	7 mm	湿度敏感等级：	NOT SPECIFIED
复用显示功能：	NO	功能数量：	1
区段数：	6	端子数量：	48
最高工作温度：	85 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	HVQCCN
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	COMMERCIAL
座面最大高度：	1 mm	最大供电电压：	3.6 V
最小供电电压：	3 V	标称供电电压：	3.3 V
电源电压1-最大：	18 V	电源电压1-分钟：	9 V
电源电压1-Nom：	15.5 V	表面贴装：	YES
温度等级：	OTHER	端子面层：	TIN LEAD
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	7 mm	Base Number Matches：	1

AD8382 数据手册

AD8382

ABSOLUTE MAXIMUM RATINGS

Table 2. Absolute Maximum Ratings¹

MAXIMUM POWER DISSIPATION

Parameter

Rating

The maximum power that the AD8382 can safely dissipate is

limited by its junction temperature. The maximum safe junction

temperature for plastic encapsulated devices, as determined by

the plastic’s glass transition temperature, is approximately

150°C. Temporarily exceeding this limit may cause a shift in

parametric performance due to a change in stresses exerted on

the die by the package. Exceeding a junction temperature of

175°C for extended periods can result in device failure.

Supply Voltages

AVCCx to AGNDx

18 V

DVCC to DGND

4.5 V

Input Voltages

Maximum Digital Input Voltage

Minimum Digital Input Voltage

Maximum Analog Input Voltage

Minimum Analog Input Voltage

Internal Power Dissipation²

LFCSP Package @ 25°C Ambient

Operating Temperature Range

Storage Temperature Range

Lead Temperature Range (Soldering 10 sec)

DVCC + 0.5 V

DGND – 0.5 V

AVCC + 0.5 V

AGND – 0.5 V

OPERATING TEMPERATURE RANGE

3.84 W

0°C to 85°C

–65°C to +125°C

300°C

Although the maximum safe operating junction temperature is

higher, the AD8382 is 100% tested at a junction temperature of

125°C. Consequently, the maximum guaranteed operating

junction temperature is 125°C. To ensure operation within the

specified operating temperature range, it is necessary to limit

the maximum power dissipation to:

¹Stresses above those listed under the Absolute Maximum Ratings may cause

permanent damage to the device. This is a stress rating only; functional

operation of the device at these or any other conditions above those

indicated in the operational section of this specification is not implied.

Exposure to absolute maximum ratings for extended periods may reduce

device reliability.

(T^JMAX–T_A)

P_DMAX

≈

²48-lead LFCSP Package:

(θ_JA–0.9× Airflow in lfm)

θ_JA= 26°C/W (JEDEC STD, 4-layer PCB in still air)

where T_JMAX= 125°C

θ_JC= 20°C/W.

Ψ_JB= 11°C/W in Still Air

AD8382 ON A 4–LAYER JEDEC PCB WITH THERMALLY OPTIMIZED

LANDING PATTERN AS DESCRIBED IN THE APPLICATION NOTES

2.00

OVERLOAD PROTECTION

200 lfm

The AD8382 employs a two-stage overload protection circuit

that consists of an output current limiter and a thermal

shutdown. The maximum current at any output of the AD8382

is internally limited to 100 mA average. In the event of a

momentary short circuit between a video output and a power

supply rail (VCC or AGND), the output current limit is

sufficiently low to provide temporary protection.

1.75

1.50

1.25

1.00

0.75

0.50

120MHz

500 lfm

STILL AIR

60Hz XGA

Quiescent

The thermal shutdown “debiases” the output amplifier when the

junction temperature reaches the internally set trip point. In the

event of an extended short circuit between a video output and

power supply rail, the output amplifier current continues to

switch between 0 mA and 100 mA typ. with a period set by the

thermal time constant and hysteresis of the thermal trip point.

The thermal shutdown provides long-term protection by

limiting average junction temperature to a safe level.

100 105 110 115

MAXIMUM AMBIENT TEMPERATURE (°C)

Figure 2. Maximum Power Dissipation vs. Temperature.

Note: Quiescent power dissipation is 0.74 W when operating

under the conditions specified in this data sheet.

When driving a 6-channel XGA panel with an input capacitance

of 200 pF, the AD8382 dissipates a total of 1.14 W when

displaying 1 pixel wide alternating white and black vertical lines

generated by a standard 60 Hz XGA input video.

EXPOSED PADDLE

To ensure a high degree of reliability, the exposed paddle must

be electrically connected to AVCC.

To ensure optimized thermal performance, the exposed paddle

must be thermally connected to the AVCC plane as described in

the Applications section.

The total power dissipation of the AD8382 is 1.67 W when

operating at the maximum specified frequency of 120 MHz,

under the conditions specified in this data sheet (Figure 2).

Rev. 0 | Page 5 of 24

1 2 3 456 7 8...24

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