MC34845DEPR2 Freescale Semiconductor, MC34845DEPR2 Datasheet - Page 13

• Manufacturer Part Number: MC34845DEPR2
• Description: IC LED DVR BACKLIGHT 6CH 24QFN
• Manufacturer: Freescale Semiconductor

Specifications of MC34845DEPR2

• Internal Driver: Yes
• Type - Primary: Backlight
• Mounting Type: Surface Mount
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 6
• Frequency: 270kHz ~ 330kHz
• Voltage - Supply: 5 V ~ 21 V
• Voltage - Output: 60V
• Package / Case: 24-UFQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Operating Supply Voltage: 5 V to 21 V
• Maximum Supply Current: 5 mA
• Maximum Power Dissipation: 3.4 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Analog Integrated Circuit Device Data
Freescale Semiconductor
Cont rol
Un it
10KΩ
0. 1uf
VIN
2 .2uF
10 V
7.65kΩ
765KΩ
0.1 %
3.3k
33nF
kO
(V
Ω
WAKE
COM P
220pF
PWM
IN
VD C1
VD C2
2. 2uF
10 V
VIN
EN
= 9.0V, I
6
16
18
15
1
20
23
17
Figure 10. Typical Application Circuit for Single Wire Control, f
MC34845
13
GND
LED
EP
/channel = 20 mA/channel, 10 LEDs/channel, OVP = 35V, V
21
GND
/C
10uf
25V
24
22
10
11
12
14
4
3
2
5
7
8
9
CH1
CH2
CH3
CH4
CH6
F AIL
SWA
SWB
VOU T
PGN D
PGN D
OVP
CH 5
TYPICAL APPLICATIONS
33 uH
60 V, 1A
680KΩ
Caps should be located
as close as possible to the
MC34845 Device
167KΩ
4.7 uF
4.7 uF
100 pF
100pF
100 pF
100 pF
100 pF
S
100p F
= 600 KHz
PWM
LED
LEG 1
LED
LEG 2
= 3.3V)
TYPICAL APPLICATIONS
LED
LEG 3
LED
LEG 4
INTRODUCTION
LED
LEG 5
LED
LEG 6
34845
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