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参数资料
| 型号： | TK61224BQ5GHB |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 2000 kHz SWITCHING FREQ-MAX, QCC32 |
| 封装： | HALOGEN AND LEAD FREE, HQFN-32 |
| 文件页数： | 2/2页 |
| 文件大小： | 280K |
| 代理商： | TK61224BQ5GHB |
2010 AUTUMN
Page 143
12
D
C
D
C
onverte
r
Block Diagram, Standard Application
LED1
LED2
LED3
LED4
LED5
LED6
SHDN/4/5/6ch CURRENT
SOURCE SELECTOR
+
-
+
-
0.5V
SHDN
DIMMING
2.5V
+
-
PWM
COMPARATOR
SOFT
START
DIMMING
CONTROL
UVLO
THERMAL
SHUTDOWN
DRIVER,DIMMING
OVP
DRIVER
SEL
2.5V
DIGITAL-PWM
GENERATOR
BRIGHTNESS
CONTROL
8-bit
COUNTER
DIVIDER
PWM
ADC
SMBus
I/F
OSC
DRIVER
+
-
0.15V
CURRENT
SENSE
TIMMER
LATCH
DIMMING
THERMAL
SHUTDOWN
OVER VOLTAGE
PROTECTION
-
+
0.8V
ERROR
AMP
LDO
INTERNAL
REGULATOR
5.0V
2.5V
18
LED5
19
LED4
21
LED3
22
LED2
23
LED1
EN1
EN0
OVP
SW
PWMOUT
LED6
14
PWMIN
7
SDA
8
SCL
VIN
VREG
VREF
EAOUT
FAULT
PGND
RT1
RT2
DTC
CSS
ISET
GND3
GND1
AGND
DGND
GND2
THERMAL
SHUTDOWN
16
6
30
12
11
32
28
27
20
17
10
9
1
2
31
5
4
26
24
25
13
15
LOW SIDE
CURRENT
SINK
L
side
H
side
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