CDB1601-120W-Z Cirrus Logic Inc, CDB1601-120W-Z Datasheet - Page 3
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CDB1601-120W-Z
Manufacturer Part Number
CDB1601-120W-Z
Description
High-efficiency PFC Demo. Board
Manufacturer
Cirrus Logic Inc
Series
-r
Datasheets
1.CDB150X-01-Z.pdf
(2 pages)
2.CDB1601-120W-Z.pdf
(24 pages)
3.CDB1601-120W-Z.pdf
(16 pages)
Specifications of CDB1601-120W-Z
Silicon Manufacturer
Cirrus Logic
Kit Application Type
Power Management
Application Sub Type
Power Factor Correction (PFC)
Kit Contents
Board, Datasheet
Design Resources
CS150x/160x PCB Layout Guidelines
Featured Product
CS1501/CS1601 Power Factor Correction IC Controllers
Main Purpose
Power Management, Power Factor Correction
Embedded
No
Utilized Ic / Part
CS1601
Primary Attributes
108 ~ 305 VAC Input, 460V 120W Output
Secondary Attributes
Ballast Control, Up to 2 T5 Lamps
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
2. PIN DESCRIPTION
DS931PP6
Pin Name
STBY
GND
ZCD
V
IFB
IAC
GD
CS
DD
Rec tifier V oltage S ens e
Pin #
1
2
3
4
5
6
7
8
Link V oltage S ens e
P FC Current S ens e
PWR
PWR
OUT
I/O
IN
IN
IN
IN
IN
S tandby
Link Voltage Sense — A current proportional to the output link voltage of the PFC is
input into this pin. The current is measured with an ADC.
Standby — A voltage below 0.8V puts the IC into a non-operating, low-power state.
The input has an internal 600k pull-up resistor to the V
Rectifier Voltage Sense — A current proportional to the rectified line voltage is input
into this pin. The current is measured with an ADC.
PFC Current Sense — The current flowing in the PFC MOSFET is sensed through a
resistor. The resulting voltage is applied to this pin and digitized for use by the PFC
computational logic to limit the maximum current through the power FET.
Zero-current Detect— Boost Inductor demagnetization sensing input for zero-current
detection (ZCD) information. The pin is externally connected to the PFC boost inductor
auxiliary winding through an external resistor divider.
Ground — Common reference. Current return for both the input signal portion of the IC
and the gate driver.
PFC Gate Driver — The totem pole stage is able to drive the power MOSFET with a
peak current of 0.5A source and 1.0A sink.
IC Supply Voltage — Supply voltage of both the input signal portion of the IC and the
gate driver. A storage capacitor is connected on this pin to serve as a reservoir for oper-
ating current for the device, including the gate drive current to the power transistor. This
pin is clamped to a maximum voltage (V
Figure 2. CS1601 Pin Assignments
S TBY
IAC
IFB
CS
8-lead S OIC
1
2
3
4
8
7
6
5
V DD
GD
GND
ZCD
Description
z
) by an internal zener function.
IC S upply V oltage
P FC Gate Driv er
Ground
P FC Zero-c urrent Detec t
DD
pin.
CS1601
3