DS3991Z+PP Maxim Integrated Products, DS3991Z+PP Datasheet - Page 3

• Manufacturer Part Number: DS3991Z+PP
• Description: IC CTRLR CCFL PUSH-PULL 16-SOIC
• Manufacturer: Maxim Integrated Products
• Type: CCFL Controllerr

Specifications of DS3991Z+PP

• Frequency: 40 ~ 80 kHz
• Current - Supply: 5mA
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: Details

ELECTRICAL CHARACTERISTICS (continued)
(V
(V
Note 1: All voltages are referenced to ground unless otherwise noted. Currents into the IC are positive; currents out of the IC are
Note 2: During fault conditions, if AC-coupled, LCM and OVD can go below ground by up to 1V for up to 1s.
Note 3: Threshold voltage includes the DC bias-voltage offset.
Lamp Regulation Threshold
OVD Threshold
Lamp Frequency
Lamp Frequency Tolerance
Burst-Dimming PWM Frequency
Burst-Dimming PWM Frequency
Tolerance
BRIGHT Voltage: Minimum
Brightness
BRIGHT Voltage: Maximum
Brightness
Gate-Driver Output Rise/Fall
CC
CC
6.0
5.5
5.0
4.5
4.0
3.5
3.0
= +4.5V to 5.5V, T
= 5.0V, T
4.5
negative.
PARAMETER
ACTIVE SUPPLY CURRENT
SVM TRIPPED
4.7
A
vs. SUPPLY VOLTAGE
= +25°C, unless otherwise noted.)
DPWM = 100%
SUPPLY VOLTAGE (V)
DPWM = 10%
4.9
_______________________________________________________________________________________
A
= -40°C to +85°C.)
5.1
DPWM = 50%
GATE Q
f
LOSC
5.3
= 49.6kHz
C
= 4.5nC
SYMBOL
LF
PF
V
V
LF
PF
V
V
5.5
BMAX
t
OVDT
BMIN
R
OSCI
OSCI
LRT
TOL
TOL
/t
F
(Note 3)
(Note 3)
LOSC resistor ±0.1% over temperature;
measured from 0°C to +85°C
POSC resistor ±0.1% over temperature
SLOPE = 0
SLOPE = 1
SLOPE = 0
SLOPE = 1
C
6.0
5.5
5.0
4.5
4.0
L
-40.0
= 600pF
ACTIVE SUPPLY CURRENT
V
V
V
CC
Low-Cost CCFL Controller
CC
vs. TEMPERATURE
CC
TEMPERATURE (°C)
= 4.5V
= 5.0V
= 5.5V
CONDITIONS
22.5
Typical Operating Characteristics
GATE Q
f
DPWM = 100%
LOSC
= 49.6kHz
C
= 4.5nC
85.0
-0.2
-0.4
-0.6
-0.8
-1.0
1.0
0.8
0.6
0.4
0.2
0
-40.0
2.29
2.25
MIN
3.3
3.3
40
80
-5
-5
LAMP FREQUENCY
INTERNAL FREQUENCY CHANGE
DPWM FREQUENCY
vs. TEMPERATURE
TYP
2.35
2.35
TEMPERATURE (°C)
22.5
MAX
2.41
2.45
300
100
+5
+5
80
0
0
UNITS
kHz
Hz
ns
%
%
V
V
V
V
V
V
85.0
3