cs1500 Cirrus Logic, Inc., cs1500 Datasheet - Page 2

• Manufacturer Part Number: cs1500
• Description: Digital Power Factor Correction Ic
• Manufacturer: Cirrus Logic, Inc.

2
Pin Name
STBY
GND
VDD
IAC
NC
GD
FB
Pin #
1, 8
2
3
4
5
6
7
OUT
I/O
IN
IN
IN
IN
-
-
NC — No connections
Remote On/Off Control — A voltage below 0.8 V shuts down the IC (not latched) and
brings the device into low power consumption mode. The input has an internal 600 k
pull-up resistor to the VDD pin and should be driven with an open-collector device.
Rectifier Voltage Sense — A current proportional to the rectified line voltage (V
fed into this pin. The current is measured with an A/D converter.
Link Voltage Sense — A current proportional to the output link voltage (V
PFC is fed into this pin. The current is measured with an A/D converter.
Ground — Current return for both the input signal portion of the IC and the gate driver.
Gate Driver Output — The totem pole stage is able to drive the power MOSFET with a
peak current of 0.5 A source and 1.0 A sink. The high-level voltage of this pin is
clamped at V
IC Supply Voltage — Supply voltage of both the input signal portion of the IC and the
gate driver.
CONFIDENTIAL
Table 1. Pin Descriptions
Z
to avoid excessive gate voltages.
Description
CS1500
link
DS849A7
) of the
rect
) is