参数资料
型号: LT3496IUFD#PBF
厂商: Linear Technology
文件页数: 8/20页
文件大小: 0K
描述: IC LED DRVR WHT/RGB BCKLT 28-QFN
标准包装: 73
恒定电流:
拓扑: PWM,降压(降压),升压(升压)
输出数: 3
内部驱动器:
类型 - 主要: 车载
类型 - 次要: RGB
频率: 330kHz ~ 2.1MHz
电源电压: 3 V ~ 30 V
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-QFN(4x5)
包装: 管件
工作温度: -40°C ~ 125°C
产品目录页面: 1340 (CN2011-ZH PDF)
LT3496
BLOCK DIAGRAM
D1
+
V SENSE
R SENSE 0.2
I LED
M1
LED1
C2
V IN
C1
L1
R3
R4
OVP1
VC1
CAP1
LED1
TG1
A7
MOSFET
DRIVER
PWM1
SW1
C C
R C
PWM1
+
V1
R1 2k
+
A1
EAMP
1V
A6
A4
NPN
DRIVER
A5
Q1
1V
CTRL1
+
+
A8
Q3
VC
A2
SR LATCH
A3
R Q
CTRL
BUFFER
SLOPE
PWM
COMPARATOR
S
ISENS2
+
R2
20k
A10
GND
REPLICATED FOR EACH CHANNEL
V IN
C3
V IN
SHDN
VREF
INTERNAL
REGULATOR
AND UVLO
V IN
ISRC
200μA
RAMP
GENERATOR
A9
Q2
OSCILLATOR
2V
REFERENCE
f ADJ
R5
C4
R6
SHARED COMPONENTS
3496 BD
Figure 1. LT3496 Block Diagram Working in Boost Configuration
3496ff
 
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