DS3881 MAXIM [Maxim Integrated Products], DS3881 Datasheet - Page 5

• Manufacturer Part Number: DS3881
• Description: Single-Channel Automotive CCFL Controller
• Manufacturer: MAXIM [Maxim Integrated Products]

5.0V SVML
2.00V LCM
(V
2.00V LCM
2.00V OVD
2.00V OVD
5.0V
5.0V
5.0V
CC
10µs
10µs
10µs
10µs
2ms
2ms
2ms
2ms
7.0
6.5
6.0
5.5
5.0
4.5
4.0
G
G
G
= 5.0V, T
B
A
B
4.75
GATE Q
4.80 4.85 4.90
Single-Channel Automotive CCFL Controller
DPWM = 10%
TYPICAL STARTUP WITH SVM
TYPICAL OPERATION AT 11V
SVML< 2V
ACTIVE SUPPLY CURRENT
A
C
= 3.5nC
= +25°C, unless otherwise noted.)
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
4.95
DPWM = 50%
5.00 5.05
f
LF:OSC
= 64kHz
DPWM = 100%
5.10
5.15
5.20
5.25
_____________________________________________________________________
2.00V LCM
2.00V LCM
2.00V OVD
2.00V OVD
5.0V
5.0V
5.0V
5.0V
10µs
10µs
10µs
10µs
1ms
1ms
1ms
1ms
7.0
6.5
6.0
5.5
5.0
G
G
G
G
A
B
A
B
-40.0
GATE Q
BURST DIMMING AT 150Hz AND 10%
TYPICAL OPERATION AT 13V
V
CC
ACTIVE SUPPLY CURRENT
C
= 4.75V
= 3.5nC
vs. TEMPERATURE
TEMPERATURE (°C)
V
CC
32.5
= 5.0V
Typical Operating Characteristics
f
DPWM = 100%
LF:OSC
V
CC
= 64kHz
= 5.25V
105
2.00V LCM
2.00V LCM
2.00V OVD
2.00V OVD
5.0V
5.0V
5.0V
5.0V
10µs
10µs
10µs
10µs
1ms
1ms
1ms
1ms
-0.2
-0.4
-0.6
-0.8
-1.0
1.0
0.8
0.6
0.4
0.2
G
G
G
G
A
B
A
B
0
-40.0
BURST DIMMING AT 150Hz AND 50%
LAMP FREQUENCY
INTERNAL FREQUENCY CHANGE
TYPICAL OPERATION AT 16V
vs. TEMPERATURE
TEMPERATURE (°C)
DPWM FREQUENCY
32.5
105
5