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參數(shù)資料
| 型號： | L6382D |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Power management unit for microcontrolled ballast |
| 中文描述： | 微控鎮(zhèn)流器功率管理單元 |
| 文件頁數(shù)： | 12/22頁 |
| 文件大?。?/td> | 294K |
| 代理商： | L6382D |
Application information
L6382D
12/22
6
Application information
6.1
Power management
The L6382D has two stable states (SAVE MODE and OPERATING MODE) and two
additional states that manage the Start-up and fault conditions (
Figure 9
): the Over Current
Protection is a parallel asynchronous process enabled when in
operating
mode.
Following paragraphs will describe each mode and the condition necessary to shift between
them.
Figure 9.
State diagram
6.1.1
START-UP mode
With reference to the timing diagram of figure 11, when power is first applied to the
converter, the voltage on the bulk capacitor builds up and the HV generator is enabled to
operate drawing about 10mA. This current, diminished by the IC consumption (less than
150
μ
A), charges the bypass capacitor connected between pin Vcc and ground and makes
its voltage rise almost linear.
During this phase, all IC's functions are disabled except for:
the current sinking circuit on VREF pin that maintains low the voltage by keeping
disabled the microcontroller connected to this pin;
the High-Voltage Start-Up (HVSU) that is ON (conductive) to charge the external
capacitor on pin Vcc.
●
●
As the Vcc voltage reaches the start-up threshold (14V typ.) the chip starts operating and
the HV generator is switched off.
SAVE MODE
OPERATING
MODE
SHUT DOWN
V
CC
>V
CC(ON)
V
CC
<V
REF(OFF)
V
REF
>3V
&
T
ED
>10
μ
s
LGI low
for more
than 100
μ
s
START-UP
V
CC
< V
CC(OFF)
or
V
REF
<2V
V
CC
<V
CC(ON)
V
CC
<V
REF(OFF)
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| L6382D_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Power management unit for microcontrolled ballast |
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| L6382DTR | 功能描述:電池管理 Pwr management unit RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| L6384 | 功能描述:功率驅(qū)動器IC Hi-Volt Half Bridge RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
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