ML4841 PRODUCT SPECIFICATION
4 REV. 1.0.3 6/13/01
Input Bias Current -0.5 -1.0 µA
Output High Voltage 6.0 6.7 V
Output Low Voltage 0.65 1.0 V
Source Current ∆V
IN
= ±0.5V, V
OUT
= 6V -40 -90 µA
Sink Current ∆V
IN
= ±0.5V, V
OUT
= 1.5V 40 90 µA
Open Loop Gain 60 75 dB
PSRR V
CCZ
- 3V < V
CC
< V
CCZ
- 0.5V 60 75 dB
OVP Comparator
Threshold Voltage 2.6 2.7 2.8 V
Hysteresis 70 95 125 mV
PFC I
LIMIT
Comparator
Threshold Voltage -0.8 -1.0 -1.15 V
∆(PFC I
LIMIT
V
TH
- Gain
Modulator Output)
100 190 mV
Delay to Output 150 300 ns
DC I
LIMIT
Comparator
Threshold Voltage 0.9 1.0 1.1 V
Input Bias Current ±0.3 ±1 µA
Delay to Output 150 300 ns
V
IN
OK Comparator
Threshold Voltage 2.4 2.5 2.6 V
Hysteresis 0.8 1.0 1.2 V
Gain Modulator
Gain (Note 3) I
AC
= 100µA, V
RMS
= V
FB
= 0V 0.35 0.50 0.65
I
AC
= 50µA, V
RMS
= 1.2V, V
FB
= 0V 1.15 1.65 2.15
I
AC
= 50µA, V
RMS
= 1.8V, V
FB
= 0V 0.52 0.74 0.96
I
AC
= 100µA, V
RMS
= 3.3V, V
FB
= 0V 0.14 0.20 0.26
Bandwidth IAC = 100µA 10 MHz
Output Voltage I
AC
= 250µA, V
RMS
= 1.15V,
V
FB
= 0V
0.74 0.82 0.90 V
Oscillator
Initial Accuracy T
A
= 25°C 188 200 212 kHz
Voltage Stability V
CCZ
- 3V < V
CC
< V
CCZ
- 0.5V 1 %
Temperature Stability 2 %
Total Variation Line, Temp 182 218 kHz
Ramp Valley to Peak Voltage 2.5 V
Dead Time PFC Only 260 400 ns
C
T
Discharge Current V
RAMP 2
= 0V, V
RAMP 1
= 2.5V 4.5 7.5 9.5 mA
Electrical Characteristics (continued)
Unless otherwise specified, I
CC
= 25mA, R
T
= 23kΩ, R
RAMP1
= 28.7kΩ, C
T
= 400pF, C
RAMP1
= 270pF, T
A
=
Operating Temperature Range (Note 1)
Symbol Parameter Conditions Min. Typ. Max. Units
