S6510 Datasheet, PDF (2/6 Pages) AUK corp – SIMPLE BALLAST CONTROLLER

Internal Block Diagram
S6510
-
INV 1
COMP ²
MULT 3
CS 4
ErrorAmplifier
0.4V
-
+
Vref
A
2.3V
+
Feedback
OVP
-
+
Static
OVP
-
Vm2 ⁺
-
GainK
Vm1
+
0. 5V
Dynamic
40uA OVP
10uA
Vref
Vmo
K=
Vm1-(Vm2-Vref)
Multiplier
2V
Q
Vmo
+
40k
-
5pF
CurrentSense
Comparator
2.5V Ref
Under Voltage Lock Out
40uA Ref
uvlo
+
-
Vth(st)
8 Vcc
18V
Self Starter
S
uvlo
7 _OUT
Drive Output
Vs
6 _GND
R
+
Zero Current ^-
Detector 2.0V
1.5V
2Vbe
5 _IDET
Vz
PIN Collection
Pin Number
1
2
3
4
5
6
7
8
Pin Name
Cs
C_T
Rs
Ldet
GND
OUT2
OUT1
Vcc
Pin Function Description
Soft start time capacitor connection pin. The pin charge time to Vref determines
The preheating time of lamp.
Timing capacitor connection pin. The timing capacitor is charged and discharged
To generate the sawtooth waveform that determines the oscillator frequency in
the internal oscillator.
Soft start resistor connection pin. The soft start resistor value determines the
initial soft start frequency for preheating.
Input to the protection circuit. If the pin voltage is lower than Vref, the output oh
The output driver1,2 is inhibited.
Ground of the control Section.
Gate drive output. A push pull output stage is able to drive the Power MOSFET
With peak current of 400mA.
Gate drive output. A push pull output stage is able to drive the Power MOSFET
With peak current of 400mA.
Supply Voltage of output driver and control circuits.
KSI-8012-001
2