- 您现在的位置：买卖IC网 > PDF目录16871 > MAX6190AESA+T (Maxim Integrated Products)IC VREF SERIES PREC 1.25V 8-SOIC PDF资料下载
参数资料
| 型号： | MAX6190AESA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/14页 |
| 文件大小： | 0K |
| 描述： | IC VREF SERIES PREC 1.25V 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 基准类型： | 串联，精度 |
| 输出电压： | 1.25V |
| 容差： | ±2mV |
| 温度系数： | 5ppm/°C |
| 输入电压： | 2.5 V ~ 12.6 V |
| 通道数： | 1 |
| 电流 - 静态： | 35µA |
| 电流 - 输出： | 500µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
Precision, Micropower,
Low-Dropout Voltage References
Pin Description
voltage. Additionally, shunt-mode references have to
be biased at the maximum expected load current, even
PIN
1, 3, 5, 7,
8
2
4
6
NAME
N.C.
IN
GND
OUT
FUNCTION
No Connection. Not internally
connected.
Supply Voltage Input
Ground
Reference Voltage Output
if the load current is not present all the time. In the
series-mode MAX6190 family, the load current is drawn
from the input voltage only when required, so supply
current is not wasted and efficiency is maximized at all
input voltages. This improved efficiency can help
reduce power dissipation and extend battery life.
When the supply voltage is below the minimum speci-
fied input voltage (as during turn-on), the devices can
Detailed Description
The MAX6190–MAX6195/MAX6198 precision bandgap
references use a proprietary curvature-correction circuit
and laser-trimmed thin-film resistors, resulting in a low
temperature coefficient of <5ppm/°C and initial accura-
cy of better than 0.1%. These devices can sink and
source up to 500μA with <200mV of dropout voltage,
making them attractive for use in low-voltage applica-
tions.
Applications Information
Output/Load Capacitance
Devices in this family do not require an output capaci-
tance for frequency stability. They are stable for capac-
itive loads from 0 to 2.2nF. However, in applications
where the load or the supply can experience step
changes, an output capacitor will reduce the amount of
overshoot (or undershoot) and assist the circuit’s tran-
sient response. Many applications do not need an
external capacitor, and this family can offer a signifi-
cant advantage in these applications when board
space is critical.
Supply Current
The quiescent supply current of these series-mode ref-
erences is a maximum of 35μA and is virtually indepen-
dent of the supply voltage, with only a 0.8μA/V variation
with supply voltage. Unlike series references, shunt-
mode references operate with a series resistor connect-
ed to the power supply. The quiescent current of a
shunt-mode reference is thus a function of the input
draw up to 200μA beyond the nominal supply current.
The input voltage source must be capable of providing
this current to ensure reliable turn-on.
Output Voltage Hysteresis
Output voltage hysteresis is the change in the output
voltage at T A = +25°C before and after the device is
cycled over its entire operating temperature range.
Hysteresis is caused by differential package stress
appearing across the bandgap core transistors. The
typical temperature hysteresis value is 75ppm.
Turn-On Time
These devices typically turn on and settle to within
0.1% of their final value in 30μs to 220μs, depending on
the device. The turn-on time can increase up to 1.5ms
with the device operating at the minimum dropout volt-
age and the maximum load.
Positive and Negative Low-Power
Voltage Reference
Figure 1 shows a typical method for developing a bipo-
lar reference. The circuit uses a MAX681 voltage dou-
bler/inverter charge-pump converter to power an
ICL7652, thus creating a positive as well as a negative
reference voltage.
12
______________________________________________________________________________________
相关PDF资料 |
PDF描述 |
|---|---|
| RBC13DREF-S13 | CONN EDGECARD 26POS .100 EXTEND |
| MAX6193AESA+T | IC VREF SERIES PREC 3V 8-SOIC |
| TCSD-25-S-12.00-01-N | CABLE ASSEM 2MM 50PS SGL END 12" |
| 0982660921 | CBL 23PS 0.5MM JMPR TYPE A 1.18" |
| MAX6192AESA+T | IC VREF SERIES PREC 2.5V 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6190B | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Precision, Micropower, Low-Dropout Voltage References |
| MAX6190BESA | 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| MAX6190BESA+ | 功能描述:基准电压& 基准电流 Precision uPower Voltage Ref RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| MAX6190BESA+T | 功能描述:基准电压& 基准电流 Precision uPower Voltage Ref RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| MAX6190BESA-T | 功能描述:基准电压& 基准电流 RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。