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L6382DTR 데이터시트(PDF) 2 Page - STMicroelectronics

부품명 L6382DTR
상세설명  Power management unit for microcontrolled ballast
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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L6382D
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in particular the L6382D embeds one driver for the PFC pre-regulator stage, two drivers for the ballast half-
bridge stage (High Voltage, including also the bootstrap function) and the last one to provide supplemen-
tary features like preheating of filaments supplied through isolated filaments in dimmable applications.
A precise reference voltage (+3.3V ±1%) able to provide up to 30mA is available to supply the
µC in op-
erating mode. Instead, during start-up and save mode the current available at VREF is up to 10mA and it
is provided by the internal high voltage start-up generator.
The chip has been conceived with advanced power management logic to minimize power losses and in-
crease the application reliability.
In the half-bridge section, a patented integrated bootstrap section replaces the external bootstrap diode.
The L6382D integrates also a function that regulates the IC supply voltage (without the need of any exter-
nal charge pump) and optimizes the current consumption.
Figure 3. Pin Connection (Top View)
Figure 4. Typical System Block Diagram
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
PFI
LSI
HSI
HEI
PFG
N.C.
TPR
GND
LSG
VCC
VREF
CSI
CSO
HEG
N.C.
HVSU
N.C.
OUT
HSG
BOOT
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
PFI
LSI
HSI
HEI
PFG
N.C.
TPR
GND
LSG
VCC
VREF
CSI
CSO
HEG
N.C.
HVSU
N.C.
OUT
HSG
BOOT
HV
START-UP
CHARGE
PUMP
REGULATOR
BOOTSTRAP
HB
DRIVER
PROTECTION
3.3V
SUPPLY
PFC
DRIVER
PFC
CIRCUIT
µ C
AC
MAINS
TL


유사한 부품 번호 - L6382DTR

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