DS3994 Maxim Integrated Products, DS3994 Datasheet - Page 15
DS3994
Manufacturer Part Number
DS3994
Description
4-Channel Cold Cathode Fluorescent Lamp Controller
Manufacturer
Maxim Integrated Products
Datasheet
1.DS3994.pdf
(28 pages)
Available stocks
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Part Number
Manufacturer
Quantity
Price
Part Number:
DS3994
Manufacturer:
DALLAS
Quantity:
20 000
Part Number:
DS3994Z+
Manufacturer:
DALLAS
Quantity:
20 000
www.DataSheet4U.com
DataSheet
4
Figure 7. Digital PWM Dimming and Soft-Start
U
.com
LAMP CURRENT
DPWM SIGNAL
MOSFET GATE DRIVERS
SOFT-START
LAMP CURRENT
LAMP CYCLE
GAn/GBn
22.5Hz TO 440Hz
1
SOFT-START PROFILE WITH INCREASING MOSFET PULSE WIDTHS OVER
A 16 LAMP CYCLE PERIOD RESULTS IN A LINEAR RAMP IN LAMP CURRENT.
2
____________________________________________________________________
3
4
Fluorescent Lamp Controller
5
6
4-Channel Cold-Cathode
7
8
SOFT-START (EXPANDED)
9
10
11
12
13
14
15
16
15
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