DS3994Z+W Maxim Integrated Products, DS3994Z+W Datasheet - Page 5

• 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

2.0V LCM
2.0V OVD
(V
5.0V G
5.0V G
CC
10μs
10μs
10μs
10μs
10
9
8
7
6
5
4
A
B
= +5.0V, T
4.5
GATE Q
DPWM = 10%
TYPICAL OPERATION AT 12V
ACTIVE SUPPLY CURRENT
4.7
C
vs. SUPPLY VOLTAGE
= 3.5nC
A
SUPPLY VOLTAGE (V)
= +25°C, unless otherwise noted.)
4.9
DPWM = 50%
2.0V SVM
2.0V LCM
1.0V OVD
5.0V G
5ms
5ms
5ms
5ms
SVM < 2V
5.1
B
f
LF:OSC
DPWM = 100%
5.3
TYPICAL STARTUP WITH SVM
= 64kHz
5.5
_____________________________________________________________________
2.0V LCM
2.0V OVD
5.0V G
5.0V G
10μs
10μs
10μs
10μs
11.0
10.5
10.0
9.5
9.0
7.5
7.0
6.5
8.5
8.0
6.0
A
B
-40.0
Fluorescent Lamp Controller
V
GATE Q
CC
= 4.5V
TYPICAL OPERATION AT 15V
ACTIVE SUPPLY CURRENT
C
= 3.5nC
vs. TEMPERATURE
V
CC
TEMPERATURE (°C)
= 5.0V
2.0V LCM
2.0V OVD
4-Channel Cold-Cathode
5.0V G
5.0V G
22.5
1ms
1ms
1ms
1ms
V
A
B
Typical Operating Characteristics
CC
f
= 5.5V
DPWM = 100%
LF:OSC
BURST DIMMING AT 150Hz AND 10%
= 64kHz
85.0
2.0V LCM
2.0V OVD
5.0V G
5.0V G
10μs
10μs
10μs
10μs
-0.2
-0.4
-0.6
-0.8
-1.0
1.0
0.8
0.6
0.4
0.2
0.0
A
B
-40.0
DPWM FREQUENCY
INTERNAL FREQUENCY CHANGE
TYPICAL OPERATION AT 18V
vs. TEMPERATURE
TEMPERATURE (°C)
22.5
LAMP FREQUENCY
85.0
5