ML4830
ELECTRICAL CHARACTERISTICS (Continued)
PARAMETER
CONDITIONS
MIN
72
TYP
MAX
88
UNITS
Oscillator
Initial accuracy
TA = 25°C, PWM or
Dimming Lockout
80
1
KHz
%
Voltage stability
VCCZ – 3V < VCC <VCCZ – 0.5V
Temperature stability
Total Variation
2
%
Line, temperature
68
92
KHz
V
Ramp Valley to Peak
C(T) Charging Current (FM Modes)
2.5
VPIN8 = 0V, VPIN9 = 2.5V,
VPIN12 = 0.9V, Preheat
–94
µA
VPIN8 = 0V, VPIN9 = 2.5V,
Max. dimming
–188
5
µA
mA
µs
C(T) Discharge Current
Output Drive Deadtime
R(SET) Voltage
VPIN8 = 0V, VPIN9 = 2.5V
0.2
2.5
V
Reference Section
Output Voltage
TA = 25°C, IO = 1mA
7.4
7.5
2
7.6
10
15
V
Line regulation
VCCZ – 3V < VCC , VCCZ – 0.5V
1mA < IO < 20mA
mV
mV
%
Load regulation
2
Temperature stability
Total Variation
0.4
Line, load, temp
7.35
7.65
V
Output Noise Voltage
Long Term Stability
Short Circuit Current
10Hz to 10KHz
50
5
µV
mV
mA
TJ = 125°C, 1000 hrs
VCC < VCCZ – 0.5V, VREF = 0V
–40
Preheat and Interrupt Timer (Pin 10) (R(X) = 590Ký, C(X) = 5.6µF)
Initial Preheat Period
Subsequent Preheat Period
Start Period
0.8
0.7
s
s
2.1
s
Interrupt Period
6.3
s
Pin 12 Charging Current
–23
0.9
µA
V
V
µA
V
V
V
V
Pin 12 Open Circuit Voltage
Pin 12 Maximum Voltage
Input Bias Current
VCC = 12.3V in UVLO
VPIN12 = 1.2V
0.4
7.0
1.1
7.7
7.3
–0.1
1.18
3.36
1.18
6.6
Preheat Lower Threshold
Preheat Upper Threshold
Interrupt Recovery Threshold
Start Period End Threshold
4
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
