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參數(shù)資料
| 型號： | MAX6045AEUR-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Precision, Low-Power, Low-Dropout, |
| 中文描述： | 1-OUTPUT THREE TERM VOLTAGE REFERENCE, 4.5 V, PDSO3 |
| 封裝： | SOT-23, 3 PIN |
| 文件頁數(shù)： | 12/14頁 |
| 文件大小： | 281K |
| 代理商： | MAX6045AEUR-T |
M
Precision, Low-Power, Low-Dropout,
SOT23-3 Voltage References
12
______________________________________________________________________________________
Detailed Description
The MAX6012/MAX6021/MAX6025/MAX6030/MAX6041/
MAX6045/MAX6050 precision bandgap references use
a proprietary curvature-correction circuit and laser-
trimmed thin-film resistors, resulting in a low tempera-
ture coefficient of <20ppm/°C and initial accuracy of
better than 0.2%. These devices can sink and source
up to 500μA with <200mV of dropout voltage, making
them attractive for use in low-voltage applications.
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 con-
nected to the power supply. The quiescent current of a
shunt-mode reference is thus a function of the input
voltage. Additionally, shunt-mode references have to
be biased at the maximum expected load current, even
if the load current is not present all the time. 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 effi-
ciency 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
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 130ppm.
Pin Description
NAME
IN
OUT
GND
FUNCTION
1
2
3
Supply Voltage Input
Reference Voltage Output
Ground
PIN
Figure 1. Positive and Negative References from Single +3V or +5V Supply
IN
V
S
+2V
S
-2V
S
OUT
+REF OUTPUT
OUTPUT
-REF OUTPUT
10nF
1M
0.1%
1M
0.1%
GND
MAX6012
MAX6021
MAX6025
MAX6030
MAX6041
MAX6045
MAX6050
V
CC
V+
GND
MAX681
V-
V+
V-
ICL7652
相關PDF資料 |
PDF描述 |
|---|---|
| MAX6045BEUR-T | Precision, Low-Power, Low-Dropout, |
| MAX6050AEUR-T | Precision, Low-Power, Low-Dropout, |
| MAX6050BEUR-T | Precision, Low-Power, Low-Dropout, |
| MAX6030AEUR-T | Precision, Low-Power, Low-Dropout, |
| MAX6030BEUR-T | Precision, Low-Power, Low-Dropout, |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6045BEUR | 制造商:Maxim Integrated Products 功能描述:PRECISION LOW-POWER LOW-DROPOUT - Rail/Tube |
| MAX6045BEUR+ | 制造商:Maxim Integrated Products 功能描述:V-REF PRECISION 4.5V 0.5MA 3PIN SOT-23 - Rail/Tube |
| MAX6045BEUR+T | 功能描述:基準電壓& 基準電流 Low-Power Low-Drop Voltage Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| MAX6045BEUR-T | 功能描述:基準電壓& 基準電流 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Voltage References 拓撲結構:Shunt References 參考類型:Programmable 輸出電壓:1.24 V to 18 V 初始準確度:0.25 % 平均溫度系數(shù)（典型值）:100 PPM / C 串聯(lián) VREF - 輸入電壓（最大值）: 串聯(lián) VREF - 輸入電壓（最小值）: 分流電流（最大值）:60 mA 最大工作溫度:+ 125 C 封裝 / 箱體:SOT-23-3L 封裝:Reel |
| MAX604C/D | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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