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參數(shù)資料
| 型號(hào)： | L9805 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Super Smart Power Motor Driver with 8-BIT MCU, CAN Interface, 16K EPROM, 256Bytes RAM, 128 Bytes EEPROM, 10 Bit ADC, WDG, 2 Timers, 2 PWM Modules, Ful |
| 中文描述： | 超級(jí)智能型電動(dòng)馬達(dá)驅(qū)動(dòng)器，帶有8位微控制器，CAN接口，16K的存儲(chǔ)器，256Bytes RAM內(nèi)存，128字節(jié)EEPROM，10位ADC，水分散粒劑，2定時(shí)器，2個(gè)PWM模塊，涪陵 |
| 文件頁數(shù)： | 26/103頁 |
| 文件大小： | 853K |
| 代理商： | L9805 |
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L9805
4 VOLTAGE REGULATOR
4.1 Introduction
The on chip voltage regulator provides two regu-
lated voltage, nominally 5V both. VCC supplies
ADC and the analog periphery and VDD supplies
the microcontroller and logic parts. These voltage
are available at pins VDD and VCC to supply ex-
ternal components and connects a capacitors to
optimize EMI performance. A pre-regulator circuit
allows to connect external tantalum capacitors to a
lower (10V) voltage (VB2 pin).
4.1.1 Functional Description
The main supply voltage is taken from VB1 pin. A
voltage pre-regulator provides the regulated volt-
age on pin VB2. VB2 is the supply for the digital
and analog regulators. The block diagram shows
the connections between the regulators and the
external pins.
In order to prevent negative spikes on the battery
line to propagate on the internal supply generating
spurious reset, a series diode supply VB1 pin is
recommended.
Figure 14. Voltage regulation block diagram
4.2 Digital Section Power Supply
The digital supply voltage VDD is available at pin
number 42 and 9. The digital ground GND is avail-
able at pin number 43 and 12.
Pin 42 and 43 are the actual voltage regulator out-
put and external loads must be supply by these
pin. The 100nF compensation capacitor should be
connected as close as possible to pin 42 and 43.
Pin number 9 and 12 provide an external access to
the internal oscillator supply. Resonator’s capaci-
tors should be grounded on pin 12.
ADC
PRE-REGULATOR
VB1
VB2
force
ANALOG
VOLTAGE
REGULATOR
sense
VCC
AGND
DIGITAL
VOLTAGE
REGULATOR
VDD(42)
GND(43)
Battery
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L9805E | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 Super Smart Power 8-Bit MCU, RAM RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L9811 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single Peripheral Driver |
| L9812R | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single Peripheral Driver |
| L9813 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SUPER SMART MIRROR WITH EMBEDDED MCU |
| L981CG-1 | 制造商:Thomas & Betts 功能描述:1/2 T CONDUIT BODY W/CVR & GASKET,E |
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