DS3994Z+W Maxim Integrated Products, DS3994Z+W Datasheet - Page 15

• Manufacturer Part Number: DS3994Z+W
• Description: Display Drivers 4-Ch Cold-Cathode Fl uorescent Controller
• Manufacturer: Maxim Integrated Products

Specifications of DS3994Z+W

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4-Channel Cold-Cathode
Fluorescent Lamp Controller
DPWM SIGNAL
22.5Hz TO 440Hz
LAMP CURRENT
SOFT-START
SOFT-START (EXPANDED)
LAMP CYCLE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
GAn/GBn
MOSFET GATE DRIVERS
SOFT-START PROFILE WITH INCREASING MOSFET PULSE WIDTHS OVER
A 16 LAMP CYCLE PERIOD RESULTS IN A LINEAR RAMP IN LAMP CURRENT.
LAMP CURRENT
Figure 7. Digital PWM Dimming and Soft-Start
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