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參數(shù)資料
| 型號： | MLX90804 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Speed regulator for universal motors |
| 中文描述： | 調(diào)速電機的普及 |
| 文件頁數(shù)： | 4/12頁 |
| 文件大小： | 147K |
| 代理商： | MLX90804 |
MLX90804
Speed regulator for universal motors
MLX90804 Speed regulator for universal motors Page 4 Rev 1.0 30/Jun/00
Zero crossing detector
This detector contains two comparators with hysteresis. The first comparator has reference at VDD1. The refer-
ence of the second one is VDD1-1V. Both outputs ZC1 and ZC2 are HIGH during positive half wave of the mains
and LOW during negative half wave of the mains.
Parameter
Symbol
Test Conditions
Min
Typ Max Units
High level threshold 1
Vzc1h
Referenced to VDD1
0.5
V
Low level threshold 1
Vzc1l
Referenced to VDD1
-0.5
V
High level threshold 2
Vzc2h
Referenced to VDD1
-1.5
V
Low level threshold 2
Vzc2l
Referenced to VDD1
-2.5
V
Speed measurement
The chip has an input SPD to measure the motor speed. It is possible to connect a low cost inductor (between
SPD and VSS) or a hall sensor with digital output. . The type of sensor can be defined by mask option. In case
of the use of a coil the input levels are defined in the table below. In case of the use of a hall sensor, the levels
are cmos compatible.
Parameter
Symbol
Test Conditions
Min
Typ Max Units
High comparator level
SPDHI
80
mV
Low comparator level
SPDLO
-80
mV
Note:
When used with a coil, the input voltage is on chip limited to approximately –280mV. However the current in-
jected or pulled out of this pin should not increase above 1 mA.
When used with a hall sensor, the SPD input does not have an internal pull up resistor.
Ignition driver
This driver operates as a current generator to fire the triac.
Parameter
Symbol
Test Conditions
Min
Typ Max Units
Triac gate current
ITRG
VDD1 > Vaporh
30
60
90
mA
ADC
This is a 4-bit ADC.
Parameter
Symbol
Test Conditions
Min
Typ
Max Units
Resolution
4
bits
Reference voltage
Vref
VDD
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|---|---|
| MLX90804SA-X | Speed regulator for universal motors |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MLX90804SA-X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Speed regulator for universal motors |
| MLX90805 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Intelligent Triac Controller |
| MLX90805S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Intelligent Triac Controller |
| MLX90805SA-X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Intelligent Triac Controller |
| MLX90805SL-X | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Intelligent Triac Controller |
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