ICE1QS01 Infineon Technologies, ICE1QS01 Datasheet - Page 5

• Manufacturer Part Number: ICE1QS01
• Description: IC PFC CONTROLLER 8DIP
• Manufacturer: Infineon Technologies

Specifications of ICE1QS01

• Current - Startup: 60µA
• Voltage - Supply: 9 V ~ 20 V
• Operating Temperature: -25°C ~ 150°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency - Switching: -
• Mode: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: ICE1QS01X; ICE1QS01XK; SP000014266

1
1.1
1.2
Figure 1
1.3
ZC (Zero Crossing)
At this pin, the voltage from the auxiliary winding after
a time delay circuit is applied. Internally, this pin is
connected to the zero-crossing detector for switch-on
determination. Additionally, the output overvoltage
detection is realized by comparing the voltage V
an internal preset threshold.
Version 2.1
Pin
1
2
3
4, 5
6
7
8
REG
CS
HV
ZC
Symbol
ZC
REG
CS
HV
OUT
VCC
GND
Pin Configuration and Functionality
Pin Configuration
Package PG-DIP-8
Pin Functionality
Pin Configuration PG-DIP-8(top view)
2
3
4
1
Function
Zero Crossing
Regulation
Primary Current Sensing
High Voltage input
gate driver output
IC supply voltage
Common ground
8
7
6
5
GND
VCC
OUT
HV
zc
with
5
REG (Regulation)
Normally, an external capacitor is connected to this pin
for a smooth voltage V
connected to the PWM signal generator for switch-off
determination (together with the current sensing
signal), the digital signal processing for the frequency
reduction
operation, and the burst mode controller for entering
burst mode operation determination and burst ratio
control during burst mode operation. Additionally, the
open-loop / over-load protection is implemented by
monitoring the voltage at this pin.
CS (Current Sensing)
This pin is connected to the shunt resistor for the
primary current sensing, externally, and the PWM
signal generator for switch-off determination (together
with the regulation voltage), internally. Moreover, short-
winding protection is realised by monitoring the voltage
V
HV (High Voltage)
The pin HV is connected to the bus voltage, externally,
and to the power cell, internally. The current through
this pin pre-charges the VCC capacitor once the supply
bus voltage is applied. Additionally, the current through
this pin supplies the IC in case that the output voltage
is lowered during active burst mode operation, or
during latch-off mode.
OUT (Gate drive output)
This output signal drives the external main power
switch, which is a power MOSFET in most case.
VCC (Power supply)
This is the IC power supply pin. Externally, this pin is
connected to the VCC capacitor, which is supplied by
the inside power cell during VCC charge-up, burst
mode operation at lowered output voltage or during
latched-off of the IC, and the auxiliary winding during
normal operation or burst mode operation with high
enough voltage across the auxiliary winding. Based on
this voltage, the VCC under- or over-voltage protection
are implemented.
GND (Ground)
This is the common ground of the controller.
cs
during on-time of the main power switch.
Quasi-Resonant PWM Controller
Pin Configuration and Functionality
with
decreasing
reg
. Internally, this pin is
load
December 2006
during
ICE2QS01
normal