ML4835CP View Datasheet(PDF) - Micro Linear Corporation
Part Name
Description
MFG CO.
'ML4835CP' PDF : 17 Pages View PDF
ML4835
RT2
RT2
8
LEA_ENB
INTERRUPT
10
–
1.25/1.0V +
VCC
19
RX/CX
11
4.75/1.25V
0.625
RSET 7.5V
–
+
REF
20
RT
ICHG
RT/CT
9
CT
+
3.75/1.25V
–
5.5mA
DURING PREHEAT
ICHG =
2.5V
RSET
AFTER PREHEAT
LEA_ENB = HI
ICHG =
5V
RSET
–
7.5V
8K±25%
LEA_ENB = LOW
ICHG =
5V
RSET
–
LEAO
8K±25%
NOTE 1: RSET SHOULD BE SELECTED SUCH THAT AFTER PREHEAT WITH LEA_ENB "HI",
ICHG MUST BE < 0.
ICHG IS A UNI-DIRECTIONAL SOURCE CURRENT ONLY.
CLOCK
tDIS
VTH = 3.75V
tCHG
CT
VTL = 1.25V
Figure 8. Oscillator Block Diagram and Timing
VCC VCCZ
V(ON)
V(OFF)
ICC
t
5.5mA
0.34mA
t
Figure 9. Typical VCC and ICC Waveforms when the ML4835 is Started with a Bleed Resistor from
the Rectified AC Line and Bootstrapped from an Auxiliary Winding.
9
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