收藏本站
MC34844A
ELECTRICAL CHARACTERISTICS
STATIC AND DYNAMIC ELECTRICAL CHARACTERISTICS
STATIC AND DYNAMIC ELECTRICAL CHARACTERISTICS
Table 11. Static and Dynamic Electrical Characteristics
Characteristics noted under conditions V IN = 12 V, V OUT = 42 V, PWM = VDC1, M/~S = VDC1, PIN & NIN = VDC1,
-40 ° C ≤ T A ≤ 105 ° C, PGND = 0 V, unless otherwise noted.
Characteristic
Symbol
Min
Typ
Max
Unit
SUPPLY
Supply Voltage (20)
V IN
7.0
12
28
V
Supply Current when Shutdown Mode
Manual: PWM = Low, EN = Low, SCK & SDA=Low
I SHUTDOWN
μ A
SM Bus: EN bit = 0, SCK & SDA=Low, EN pin= Low
-
2.0
-
I 2 C:
SETI2Cbit=1, CLRI2C=0, EN bit= 0, EN pin = Low
-
17
-
Supply Current when Sleep Mode
I SLEEP
SM-Bus: EN = low, SCK & SDA= Active, SETI2C bit = 0, EN bit = 0
-
4.0
-
mA
I 2 C: EN = High, SETI 2 C bit = 1, CLRI 2 C bit = 0, EN bit = 0
Supply Current when Operational Mode
I OPERATIONAL
Manual: EN= High, SCK & SDA=Low, PWM=Low
-
13.0
-
mA
SM-Bus: EN= Low, SCK & SDA=Active, EN bit= 1, PWM=Low
I 2 C: EN = High, SETI 2 C bit = 1, CLRI 2 C bit = 0, EN bit = 1, PWM=Low
Under-voltage Lockout (V IN Rising)
Under-voltage Hysteresis (V IN Falling)
UVLO
UVLO HYST
5.4
-
6.0
300
6.4
-
V
mV
VDC1 Voltage
(18)
V DC1
2.3
2.5
2.75
V
C VDC1 = 2.2 μ F
VDC2 Voltage (18)
V DC2
5.5
6.0
6.5
V
C VDC2 = 2.2 μ F
VDC3 Voltage (18)
V DC3
2.3
2.5
2.75
V
C VDC3 = 2.2 μ F
BOOST
Output Voltage Range (19)(20)
VIN = 7.0 V
VIN = 28 V
Boost Switch Current Limit
Boost Switch Current Limit Timeout
RDSON of Internal FET (I DRAIN = 1.0 A)
Boost Switch Off-state Leakage Current
V OUT1
V OUT2
I FET
t BOOST_TIME
R DSON
I BOOST_LEAK
8.0
32
2.3
-
-
-
-
-
2.5
10
250
-
28
60
2.7
-
500
10
V
A
ms
m Ω
μ A
V SWA,SWB = 65 V
Feedback pin Off-state Leakage Current (V OUT = 65 V )
Peak Boost Efficiency (20)
VOUT LEAK
EFF BOOST
-
-
500
90
700
-
μ A
%
Notes
18. This output is for internal use only and not to be used for other purposes. A 1.0 k Ω resistor between the VDC3 and VDC1 pin is
recommended for <-20 °C operation.
19. Minimum and Maximum output voltages are dependent on Min/Max duty cycle and current limit condition.
20. Guaranteed by design
34844A
Analog Integrated Circuit Device Data
Freescale Semiconductor
37
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
MC34845AEPR2 IC LED DVR BACKLIGHT 6CH 24QFN
MC34845BEPR2 IC LED DVR BACKLIGHT 6CH 24QFN
MC34848EPR2 IC LED DVR BACKLIGHT 8CH 48QFN
MC56F8006DEMO-T BOARD DEMO FOR MC56F8006 DSP
MCB1114 BOARD EVALUATION FOR NXP LPC1114
MCB11C14 BOARD EVAL FOR NXP LPC11C14
MCB2470 BOARD EVAL NXP LPC247X SERIES
MCBSTM32EXL BOARD EVALUATION FOR STM32F103ZE
相关代理商/技术参数
MC34844EPR2 功能描述:LED照明驱动器 BACKLIGHT LED DRIVER W/10 CHANNELS RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MC34845 制造商:SPC Multicomp 功能描述:RECEPTACLE FREE 16WAY 制造商:SPC Multicomp 功能描述:RECEPTACLE, FREE, 16WAY
MC34845AEP 功能描述:LED照明驱动器 6-Ch LED Backlt Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MC34845AEPR2 功能描述:LED照明驱动器 6-Ch LED Backlt Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MC34845BEP 功能描述:USB 接口集成电路 6-Ch LED Backlt Driver RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20
MC34845BEPR2 功能描述:USB 接口集成电路 6-Ch LED Backlt Driver RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20
MC34845CEP 功能描述:LED照明驱动器 6-Ch LED Backlt Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N
MC34845CEPR2 功能描述:LED照明驱动器 6-Ch LED Backlt Driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N