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参数资料
| 型号： | TK61223AQ8GHB |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, QCC8 |
| 封装： | 4 X 4 MM, HALOGEN AND LEAD FREE, QFN-8 |
| 文件页数： | 2/2页 |
| 文件大小： | 316K |
| 代理商： | TK61223AQ8GHB |
2010 AUTUMN
Page 141
12
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Block Diagram, Standard Application
UVLO
OSC
SWITCH LOGIC
TIMER
LATCH
LDO
5.0V
OVP
VIN
VDC
TM
RT
ISET
GND
LOW SIDE
CURRENT
SINK
CURRENT
SENSE
CH6
CH7
CH8
OVER VOLTAGE
PROTECTION
ERROR
AMP
DIMMING
CONTROL
DRIVER,
ERROR AMP
TSD
THERMAL
SHUTDOWN
PWM
COMPARATOR
PWM
COMP
PWM
TSD
CURRENT
SENSE
CURRENT
SENSE
DRIVER,
TIMER
DRIVER,
DIMMING
VOLTAGE
SELECT
LED TIMER
8
CH
SHORT
LX
PGND
DRIVER
∑
+
-
REG
3.0V
OVP SHORT
PROTECTION
8
OVP
SHORT
TIMER
CH OPEN
PROTECTION
2.3V
8
VDC
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH4
CH5
CH2
CH3
CH1
PWM
LED SHORT
PROTECTION
CH SHORT
PROTECTION
8
DRIVER
TIMER
SYNC
CLKO
SYNC
OSC
CLKO
OSC
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