S6500 데이터 시트보기 (PDF) - AUK -> KODENSHI CORP
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S6500 Datasheet PDF : 7 Pages
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Internal Block Diagram
S6500
-
INV 1
COMP 2
MULT 3
CS 4
Error Amplifier
0.4 V
-
+
Vref
A
2.3 V
+
Feedback
OVP
-
+
Static
OVP
-
Vm2 +
-
Gain K
Vm1
+
0. 5V
Dynamic
40uA OVP
10 uA
Vref
Vmo
K=
Vm1-(Vm2-Vref)
Multiplier
2V
Q
Vmo
+
40k
-
5pF
Current Sense
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
1.5 V
2Vbe
5
Vz
IDET
Absolute Maximum Ratings
Characteristics
Supply Voltage
Supply voltage Regulator Maximum Current
Peak Drive Output Current
Driver Output Clamping Diodes Vo>Vcc or Vo<-0.3V
Detect Clamping Diodes
Error Amp, Compensation and Multiplier Input Voltage
Power Dissipation @ Tamb=50℃
Thermal Data
Thermal Resistance Junction-Ambient
Symbol
VCC
ICC(max)
Ioh, lol
Iclamp
ldet
Vin
Pd
Value
18
35
±500
±10
±10
-0.3 to 6
0.65
Rth(j-amb)
100
Units
V
mA
mA
mA
mA
V
W
℃/W
PIN Function
Pin Number
1
Pin Name
INV
2
COMP
3
MULT
4
CS
5
IDET
6
GND
7
OUT
8
Vcc
Pin Function Description
Inverting input of the error amplifier. The output of the boost converter should be
resistively divided to 2.5V and Connected to this pin.
Output of the error amplifier. A feedback compensation network is placed
between this pin and the INV pin.
Input to the multiplier stage. The full wave rectified AC voltage is divided to less
than 4V and is connected to this pin.
Input to the comparator of the control loop. The MOSFET current is sensed by a
resister and the resulting voltage is applied to this pin. An internal R/C filter is
Included to reject any high frequency noise.
Zero current detection input.
Ground of the control section.
Gate drive output. A push pull output stage is able to drive the power MOSFET
with peak current of 500mA.
Supply voltage of driver and control circuits.
KSI-8011-002
2
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