CPC9909DB Clare, CPC9909DB Datasheet - Page 3

• Manufacturer Part Number: CPC9909DB
• Description: DEMO BOARD FOR CPC9909SHOULD
• Manufacturer: Clare

Specifications of CPC9909DB

• Mfg Application Notes: CPC9909 Design Considerations
• Current - Output / Channel: 350mA
• Outputs And Type: 1, Non-Isolated
• Features: Dimmable
• Voltage - Input: 90 ~ 265VAC
• Utilized Ic / Part: CPC9909
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Other names: CLA329

1. Setup
1.1 CPC9909 Evaluation Board Schematic
1.2 Demo Board Connection Descriptions
* Note that the demo board and the connected LED's are not isolated from line voltage, therefore an isolation
transformer should be used to protect the user and all measuring instruments such as oscilloscope and multi-meters.
R01
J1
J2 *
V
LD Monitor
JP1
GND
J2
DD
265VAC (max)
LED+
LED-
V
V
EXT. POWER
V
V
IN
IN
Monitor
IN
IN
Name
J1
LED+
LED-
LED CONNECTION
FUSE F2
NTC1
2A
LED+ is connected to the anode end of the LED string
LED- is connected to the cathode end of the LED string
AC input: 265V
AC input: 265V
This pin is connected to the V
to provide bias voltage to external circuits.
The LD monitor pin is connected to the wiper of the potentiometer, RA1. The CPC9909 has a preset voltage level V
which is typically set at 250mV. The LED drive current can be reduced in a linear fashion by adjusting RA1, thus pulling the
LD pin down to below 250mV.
External PWMD Control Input:
•
•
•
This pin is connected to the ground of buck LED driver.
Jumper pins 1&2 to disable the CPC9909 and place it into a low-current, standby state.
Jumper pins 2&3 to enable the CPC9909; dimming is accomplished with the potentiometer, RA1.
No Jumper. Apply a TTL-level PWM signal in the 500Hz range to pin 2 to enable dimming under PWM control. The PWM
signal’s duty cycle determines LED brightness.
AC
AC
DF04S
BR1
+
-
rms
rms
4.7mH
L1
(max) - or - DC input: 15V
(max) - or - DC input: 15V
IXTA8N50N
Q1
BYV26B
D1
DD
2
3
pin of the CPC9909. The typical voltage regulator output is set at 7.8V, and can be used
0.56Ω
R4
1
0.1μF
www.clare.com
400V
C1
DC
DC
to 375V
to 375V
Description
22μF
400V
C2
DC
DC
(not DC polarity sensitive)
(not DC polarity sensitive)
CPC9909 Evaluation Board User’s Guide
1
2
3
4
JP1
V
CS
PGND
GATE
IN
8-PIN SOIC
1
CPC9909
DUT1
PWMD
402kΩ
2
R1
PWMD
V
RT
LD
3
DD
8
7
6
5
0.1μF
25V
C4
V
LD MONITOR
DD
RA1
MONITOR
5kΩ
51kΩ
R3
0Ω
R2
2.2μF
CS(high)
16V
C3
3