CM6901 Datasheet, PDF (3/15 Pages) Champion Microelectronic Corp. – SLS (SRC/LLC+SR) Controller with 1 FM+2 PWMs

CM6901
SLS (SRC/LLC+SR) Controller with 1 FM+2 PWMs
PIN DESCRIPTION
Pin No.
1
2
Symbol
RSET
VFB
Description
External resistor which convert FEAO voltage signal into current
signal for frequency modulation. SR is PWMing Control , when
RSET lower than 1.5V.
Operating Voltage
Min. Typ. Max. Unit
0
5.5
V
Non-inverting input into resonant error amplifier .
0
2.5
3
V
3
FEAO Resonant error amplifier output and compensation node for
0
frequency modulation control.
4
D_IN-
Inverting input into PWM error amplifier.
0
5.5
V
6
V
5
D_IN+ _{Non-inverting input into PWM error amplifier.}
0
6
V
6
DEAO
PWM error amplifier output and compensation node for PWM
0
control.
7
CSS
Soft start for FM/PWM operation with 1V enable threshold. Also, 0
use for auto-restart operation during current limit.
4.5
V
5.5
V
8
ILIM
Input to current comparator with 1V threshold.
0
1
1.25 V
9
RTCT
Oscillator timing components which set the minimum frequency.
1.2
3
V
10
GND
Ground
11
SDRVB Synchronous MOSFET driver output.
12
SDRV Synchronous MOSFET driver output.
13
PRIDRVB Primary side MOSFET driver output.
14
PRIDRV Primary side MOSFET driver output.
15
VCC
Positive supply for the IC
16
VREF Buffered output for the 7.5V voltage reference
-0.3
VCC V
-0.3
VCC V
-0.3
VCC V
-0.3
VCC V
10
15
20
V
7.5
V
2009/11/02 Rev1.4
Champion Microelectronic Corporation
Page 3