|
|
PDF ICE2QR2280Z-1 Data sheet ( Hoja de datos )
| Número de pieza | ICE2QR2280Z-1 | |
| Descripción | Off-Line SMPS Quasi-Resonant PWM Controller | |
| Fabricantes | Infineon | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de ICE2QR2280Z-1 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
|
No Preview Available !
Datasheet,Version 2.1, March 7, 2013
Co ol SE T ® - Q1
ICE2QR2280Z-1
Off-Line SMPS Quasi-Resonant
PWM Controller with integrated
8 0 0 V C oo l M O S ® and startup cell in
DIP-7
Power Management & Supply
Never stop thinking.
1 page  
CoolSET® - Q1
ICE2QR2280Z-1
Pin Configuration and Functionality
1 Pin Configuration and Functionality
1.1 Pin Configuration with PG-DIP-7 1.3
Pin Functionality
1.2 Package PG-DIP-7
Pin Symbol Function
1 ZC Zero crossing
2 FB Feedback
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 over voltage
detection is realized by comparing the voltage Vzc with
an internal preset threshold.
3 CS Current Sense
4 N.C. No connection
5 Drain 800V CoolMOS™ Drain
6 - No Pin
7 VCC Controller Supply Voltage
8 GND Controller Ground
FB (Feedback)
Normally, an external capacitor is connected to this pin
for a smooth voltage VFB. Internally, this pin is
connected to the PWM signal generator for switch-off
determination (together with the current sensing
signal), the digital signal processing for the frequency
reduction with decreasing load during normal
operation, and the Active Burst Mode controller for
entering Active Burst Mode operation determination
and burst ratio control during Active Burst Mode
operation. Additionally, the open-loop / over-load
protection is implemented by monitoring the voltage at
this pin.
ZC 1
FB 2
CS 3
NC 4
8 GND
7 VCC
5 Drain
Figure 1 Pin Configuration PG-DIP7 (top view)
CS (Current Sense)
This pin is connected to the external shunt resistor for
the primary current sensing and the internal PWM
signal generator for switch-off determination (together
with the feedback voltage). Moreover, short-winding
protection is realised by monitoring the voltage Vcs
during on-time of the main power switch.
Drain (Drain of integrated CoolMOS®)
Drain pin is the connection to the drain of the internal
CoolMOS®.
VCC (Power supply)
VCC pin is the positive supply of the IC. The operating
range is between VVCCoff and VVCCOVP.
GND (Ground)
This is the common ground of the controller.
Version 2.1
5 March 7, 2013
5 Page 
CoolSET® - Q1
ICE2QR2280Z-1
Functional Description
immediately after leaving Active Burst Mode. This is
helpful to decrease the output voltage undershoot.
VFB
VFBLB
VFBBOn
VFBBOff
VFBEB
VCS
Entering
Active Burst
Mode
Leaving
Active Burst
Mode
Time to 7th zero and
Blanking Window (tBEB)
t
1.0V
VCSB
VVCC
Current limit level during
Active Burst Mode
t
VVCCoff
VO
Max. Ripple < 1%
t
Figure 8 Signals in Active Burst Mode
t
voltage, the IC is reset and the main power switch is
then kept off. After the VCC voltage falls below the
threshold VVCCoff, the startup cell is activated. The VCC
capacitor is then charged up. Once the voltage
exceeds the threshold VVCCon, the IC begins to operate
with a new soft-start.
In case of open control loop or output over load, the
feedback voltage will be pulled up. After a blanking time
of tOLP_B (30ms), the IC enters auto-restart mode. The
blanking time here enables the converter to provide a
peak power in case the increase in VFB is due to a
sudden load increase. This output over load protection
is disabled during burst mode.
During off-time of the power switch, the voltage at the
zero-crossing pin is monitored for output over-voltage
detection. If the voltage is higher than the preset
threshold vZCOVP, the IC is latched off after the preset
blanking time tZCOVP. This latch off mode can only be
reset if the Vcc < VVCCPD (5.2V).
If the junction temperature of IC exceeds TjCon (140 °C),
the IC enters into OTP auto restart mode. This OTP is
disabled during burst mode.
If the voltage at the current sensing pin is higher than
the preset threshold vCSSW during on-time of the power
switch, the IC is latched off. This is short-winding
protection. The short winding protection is disabled
during burst mode.
During latch-off protection mode, the VCC voltage
drops to vVCCoff (9.85V) and then the startup cell is
activated. The VCC voltage is then charged to vVCCon
(18V). The startup cell is shut down again. This action
repeats again and again.
There is also a maximum on time limitation
implemented inside the CoolSET® - Q1. Once the gate
voltage is high and longer than tOnMAx, the switch is
turned off immediately.
3.6 Protection Functions
The IC provides full protection functions. The following
table summarizes these protection functions.
Table 2 Protection features
VCC Overvoltage
VCC Undervoltage
Overload/Open Loop
Over temperature
Output Overvoltage
Short Winding
Auto Restart Mode
Auto Restart Mode
Auto Restart Mode
Auto Restart Mode
Latched Off Mode
Latched Off Mode
During operation, the VCC voltage is continuously
monitored. In case of an under-voltage or an over-
Version 2.1
11
March 7, 2013
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet ICE2QR2280Z-1.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| ICE2QR2280Z-1 | Off-Line SMPS Quasi-Resonant PWM Controller | Infineon |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |