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参数资料
| 型号： | MAX9065EBS+TG45 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/9页 |
| 文件大小： | 0K |
| 描述： | IC WINDOW COMPARATOR LP 4UCSP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 窗口 |
| 元件数： | 1 |
| 输出类型： | 推挽式 |
| 电压 - 电源，单路/双路(±)： | 1 V ~ 5.5 V |
| 电流 - 静态（最大值）： | 1.35µA |
| 封装/外壳： | 4-WFBGA，CSPBGA |
| 安装类型： | 表面贴装 |
| 包装： | 带卷 (TR) |
Detailed Description
The MAX9065 is an extremely small window compara-
tor designed for compact, low-current applications, fea-
turing a supply current of less than 1A (max).
Operation
At the heart of the MAX9065 are two comparators, a
resistor-divider with a disconnect switch, a 200mV ref-
erence, digital logic circuitry, and an output stage (see
the
Typical Operating Circuit).
The digital logic circuitry and the output stage together
behave like an AND gate. The gate’s inputs are the out-
puts of the two comparators. When either comparator’s
output is low, the output asserts low. When both com-
parator’s outputs are high, the output asserts high.
When power is applied to VCC, the n-channel FET at
the bottom of the resistor-divider is turned on. The
resistor-divider provides two voltages, VUPPER and
VLOWER, for comparison with an internal 0.2V reference
voltage. When the input voltage exceeds 4.2V, VUPPER
is greater than 0.2V, causing the output to assert low.
When the input voltage falls below 3.0V, VLOWER is less
than 0.2V, causing the output also to assert low. With
the input voltage between 3.0V and 4.2V, the output
asserts high, indicating that the input voltage is within
the desired range. Table 1 summarizes the operation of
the MAX9065.
When VCC goes to 0V, the n-channel FET is turned off,
eliminating the resistor-divider as a leakage path for
current.
Applications
The MAX9065 is designed specifically to monitor the
voltage on a single lithium battery. Keeping the voltage
on a lithium battery within a tight range is important to
prevent damage to the battery. Specifically, ensuring
that the battery’s voltage neither exceeds 4.2V nor falls
below 3.0V lengthens the lifetime of the battery and
avoids any hazardous battery conditions.
Hysteresis
There are four trip points for hysteresis. See Figure 1.
Power-Supply Considerations
Bypass VCC with a 0.1F capacitor to ground.
Chip Information
PROCESS: BiCMOS
MAX9065
Ultra-Small, Low-Power, Window Comparator
in 4 UCSP and 5 SOT23
_______________________________________________________________________________________
5
Pin Description
PIN
SOT23
UCSP
NAME
FUNCTION
1B1
VCC
External Supply Input. Bypass
to ground with a 0.1F bypass
capacitor.
2, 3
B2
GND
Ground
4
A2
IN
Window Comparator Input
5
A1
OUT
Push-Pull Output
INPUT VOLTAGE
OUTPUT
VIN > 4.2V
Low
3.0V < VIN < 4.2V
High
VIN < 3.0V
Low
Table 1. MAX9065 Operation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9065EUK+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9065EUK+T | 功能描述:校验器 IC Low-Power Single Comparator RoHS:否 制造商:STMicroelectronics 产品: 比较器类型: 通道数量: 输出类型:Push-Pull 电源电压-最大:5.5 V 电源电压-最小:1.1 V 补偿电压（最大值）:6 mV 电源电流（最大值）:1350 nA 响应时间: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SC-70-5 封装:Reel |
| MAX9065EVKIT+ | 功能描述:其他开发工具 MAX9060-65 Eval Kit RoHS:否 制造商:Parallax 产品:ELEV-8 Hex Upgrade Kits 类型:Robotics 工具用于评估:ELEV-8 Quadcopter 工作电源电压: |
| MAX906C/D | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:High-Speed, Positive Edge-Triggered, ECS-Compatible Voltage Comparators |
| MAX906C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
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