Datasheet > ADM9264ARNZ

ADM9264ARNZ

更新时间： 2024-02-01 22:23:16

品牌	Logo	应用领域
罗彻斯特 - ROCHESTER		信息通信管理光电二极管
页数	文件大小	规格书
13页	867K
描述
4-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, ROHS COMPLIANT, SOIC-16

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ADM9264ARNZ 技术参数

是否无铅：	不含铅	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：	16
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.35
可调阈值：	NO	模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码：	R-PDSO-G16	JESD-609代码：	e3
长度：	9.9 mm	湿度敏感等级：	1
信道数量：	4	功能数量：	1
端子数量：	16	最高工作温度：	85 °C
最低工作温度：	-40 °C	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）：	260
认证状态：	Not Qualified	座面最大高度：	1.75 mm
最大供电电压 (Vsup)：	6 V	最小供电电压 (Vsup)：	2.5 V
表面贴装：	YES	技术：	BICMOS
温度等级：	INDUSTRIAL	端子面层：	MATTE TIN
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	3.9 mm

ADM9264ARNZ 数据手册

ADM9264

CIRCUIT INFORMATION

SU4DET Input

Monitor Inputs SU1 to SU4

SU4DET is a TTL-compatible input that disables the ERR4

output, causing ERR4 to go high when SU4DET is high. This

allows the SU4 input to be disabled easily for systems that do

not have a 2.8 V supply.

The ADM9624 is provided with four analog inputs, SU1 to

SU4, to monitor supply voltages of +12 V, +5 V, +3.3 V and

+2.8 V. Each input is connected to a window comparator con-

sisting of a pair of voltage comparators and a two-input NOR

gate. Each pair of comparators obtains a reference voltage

from a precision internal reference, and each input to be

monitored is connected to the comparators via a precision,

thin film attenuator, whose resistor ratios determine the trip

points of each comparator. As the input voltages are attenu-

ated before reaching the comparators, they may exceed the

supply voltage of the ADM9264 without exceeding the com-

mon-mode or differential input range of the comparators.

PWROK Output

The PWROK output combines the four error outputs and the

auxiliary inputs to give a common “Power OK” output. If the

four error outputs are high, ERRX is low, ERRY is high and

DIS is low then PWROK is high, otherwise PWROK is low.

PWROK is an open-drain output and requires a 10K pull-up

resistor to a positive supply, which may be different from V_CCif

required. A truth table for the PWROK output is following.

When the input voltage is within limits, the outputs of both

comparators are low, so the output of the NOR gate is high. If

the voltage on the inverting input of the low comparator falls

below the reference voltage, or the voltage on the noninverting

input of the high comparator rises above the reference voltage,

the output of the NOR gate will go low.

Truth Table

DIS ERRX ERRY ERR4 ERR3 ERR2 ERR1 PWROK

Error Outputs

Error outputs ERR1 to ERR4 are open-drain outputs that are

OFF (high) when the corresponding input voltage is within

limits and ON (low) when the input is out of limit. Each error

output requires a 10 kΩ pull-up resistor to a positive supply,

which may be different from V_CCif required. The open-drain

construction allows two or more of these outputs to be wire-

ANDed together if required.

X = don’t care.

Power Supply V_CC

The ADM9264 can be powered from any supply voltage between

2.5 V and 6 V. This includes any of the supply voltages apart

from that connected to SU1, since this is greater than 6 V.

Auxiliary Inputs ERRX, ERRY

ERRX and ERRY are TTL-compatible auxiliary inputs that

allow external signals such as temperature alarms to be linked

into the ADM9264. ERRX is active high and forces PWROK

low when it is high. ERRY is active low and forces PWROK low

when it is low.

The logic outputs are open-drain and take their output high

level from the voltage connected to the pull-up resistor, so they

are not dependent on the value of V_CC

DIS Input

The disable input, DIS, is a TTL-compatible input. It overrides

all other inputs to the PWROK logic and forces PWROK high

when it is high.

REV. 0

–5–

1...3 4 567 8 9...13

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