参数资料
型号: MC34848EP
厂商: Freescale Semiconductor
文件页数: 27/38页
文件大小: 0K
描述: IC LED DVR BACKLIGHT 8CH 48QFN
产品变化通告: AMPD Product Discontinuation 12/Dec/2012
标准包装: 260
恒定电流:
恒定电压:
拓扑: PWM,升压(升压)
输出数: 8
内部驱动器:
类型 - 主要: 背光
频率: 200kHz ~ 1.2MHz
电源电压: 2.6 V ~ 3.6 V
输出电压: 45V
安装类型: 表面贴装
封装/外壳: 48-VFQFN 裸露焊盘
供应商设备封装: 48-QFN-EP(7x7)
包装: 托盘
工作温度: -40°C ~ 85°C
TYPICAL APPLICATIONS
24V
22 μH
FD4675
Schottky
LED
LED
LED
LED
LED
LED
LED
LED
10 kO
SS36-E3
LEG 1
LEG 2
LEG 3
LEG 4
LEG 5
LEG 6
LEG 7
LEG 8
47uf
100nf
33uf
0.01uf
0.01uf
10 kO
243 kO
1%
12V
3.3V
GD
FD3692
DVDD
27
42
46
OUT_SW
0.47uf
45
CS
180O
0.05O
10.7 kO
1%
PVCC
48
470pf
0.47uf
4.7 kO
SLEW
41
390pf
130 kO
COMP
68pf
43
47
1
OVP
CH1
3
CH2
VDC
VLOGIC
40
23
4
6
CH3
CH4
2.2uf
2.2uf
MC34848
7
9
CH5
CH6
SCAN
SHUT_B
SETUP
RESET_SCAN
22
35
32
33
10
12
19
CH7
CH8
ISET
CTRL
LS
CLK+
CLK-
DATA+
34
28
29
30
21
20
17
REFIO
GNDIO
AGND
100nf
2 kO
0.1%
DATA-
DIO1
31
36
39
25
AGND
DGND
From Master
SYNC_OUT
SYNC_OUT
SYNC_IN
PLLC
24
37
18 14 26 15 16 38
2
5
49
44
8 11 13
PGND
PGND
From Master
SYNC_PWM
Figure 21. Typical Application Circuit for Slave Mode Operation (10 LEDs per channel, V F = 3.3 V typical)
34848
Analog Integrated Circuit Device Data
Freescale Semiconductor
27
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