MC34844AEP Freescale Semiconductor, MC34844AEP Datasheet - Page 2

• Manufacturer Part Number: MC34844AEP
• Description: IC LED DVR BACKLIGHT 10CH 32QFN
• Manufacturer: Freescale Semiconductor

Specifications of MC34844AEP

• Constant Current: Yes
• Internal Driver: Yes
• Type - Primary: Backlight
• Mounting Type: Surface Mount
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 10
• Frequency: Adjustable/Selectable
• Voltage - Supply: 7 V ~ 28 V
• Voltage - Output: 60V
• Package / Case: 32-VFQFN Exposed Pad
• Operating Temperature: -40°C ~ 105°C
• Operating Supply Voltage: 7 V to 28 V
• Maximum Supply Current: 10 mA
• Maximum Power Dissipation: 3.9 W
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2
34844
Control Unit
Control Unit
7.0 to 28V
Figure 2. MC34844A Simplified Application Diagram (Manual Mode)
Figure 1. MC34844 Simplified Application Diagram (SM Bus Mode)
PWM
7.0 to 28V
VDC1
VOUT
PWM
VDC1
VDC1
VDC1
VDC1
VIN
VDC1
VDC2
VDC3
COMP
SLOPE
SCK
SDA
PWM
A0/SEN
CK
M/~S
EN
ISET
PIN
NIN
VIN
VDC1
VDC2
VDC3
COMP
SLOPE
SCK
SDA
PWM
A0/SEN
CK
M/~S
EN
ISET
PIN
NIN
34844
GND
34844A
PGNDA
PGNDB
GND
VOUT
SWA
SWB
FAIL
I0
I1
I2
I3
I4
I5
I6
I7
I8
I9
PGNDA
PGNDB
VOUT
SWA
SWB
FAIL
I0
I1
I2
I3
I4
I5
I6
I7
I8
I9
VCC
VCC
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Analog Integrated Circuit Device Data
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VOUT
Freescale Semiconductor