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LC5222D 数据表(PDF) 6 Page - Sanken electric

部件名 LC5222D
功能描述  Hybrid Integrated Circuit
Download  11 Pages
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制造商  SANKEN [Sanken electric]
网页  http://www.sanken-ele.co.jp/en
标志 SANKEN - Sanken electric

LC5222D 数据表(HTML) 6 Page - Sanken electric

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Functional Block Diagram
Functional Block Diagram
Control Part
LC5220
6(7)
5(5,6)
4
1
8
3
2
OPP
Logic
Gate Driver
UVLO
TSD
Band Gap
Reference
Regulator
OCP
Blanking
PWM
Control
Reference
Control
CC_REF
OCP_REF
Output
Control
Logic
TSD
UVLO
PWM
OCP
OPP
SLEEP
ENABLE
REG
VBB
REF
PWM
GND
Pin numbers in parentheses refer to the SOP8 package
Current
Detect
CC
OC
SEN
OUT
PWM _IN
SEN_IN
Pin List Table
Name
Number
Function
DIP8
SOP8
REG
1
1
Internal regulator supply, provides current to internal and external circuits;
connect a 0.1 μF bypass capacitor between this pin and GND.
PWM
2
2
Input for PWM control: to use internal PWM, connect a capacitor for setting
off-time; to use external PWM, connect to PWM signal source.
REF
3
3
Reference voltage input: sets peak output current of OUT pin (internal power
MOSFET) for internal PWM control, enables toggling output of OUT pin
(Enable function), and enables latched shutdown of output (Sleep function)
SEN
4
4
Output current detection: detects peak output current for internal PWM control,
and detects overcurrent for OCP; connect to current detection resistor.
OUT
5
5, 6
Drain of internal power MOSFET.
VBB
6
7
Supply voltage, provides power to internal circuits through internal regulator.
GND
8
8
Ground pin.
7
LC5220D DIP8 pin removed to increase creepage distance between high
voltage pin and low voltage pin. Note: Apply user’s criteria for creepage
distance when using LC5220S SOP8.
1
2
3
4
8
6
5
GND
VBB
OUT
REG
PWM
REF
SEN
1
2
3
4
8
7
6
5
GND
VBB
OUT
OUT
REG
PWM
REF
SEN
Pin-out Diagrams
DIP8
(LC5220D series)
SOP8
(LC5220S series)
LC5222D/25D and
LC5222S/25S
6
SANKEN ELECTRIC CO., LTD.
LC5222D/25D_22S/25S-DS
Off-Line DC/DC LED Driver ICs
August 8, 2012


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