ICE2QS03 Infineon Technologies, ICE2QS03 Datasheet
ICE2QS03
Specifications of ICE2QS03
Available stocks
Related parts for ICE2QS03
ICE2QS03 Summary of contents
Page 1
...
Page 2
... ICE2QS03 Revision History: Previous Version: Page17 test condition Iout changed from 20mA to 10mA For questions on technology, delivery and prices please contact the Infineon Technologies Offices in Germany or the Infineon Technologies Companies and Representatives worldwide: see our webpage at http:// www.infineon.com ® ® ...
Page 3
... BiCMOS technology, the product has a wide operation range (up to 26V power supply and lower power consumption. The numerous protection functions give a full protection of the power supply system in failure situations. All of these make the ICE2QS03 an outstanding controller for quasi-resonant flyback converter in the market. Snubber ...
Page 4
... Internal Voltage Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 4.3.3 PWM Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 4.3.4 Current Sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 4.3.5 Soft Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 4.3.6 Foldback Point Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 4.3.7 Digital Zero Crossing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 4.3.8 Active Burst Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 4.3.9 Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 4.3.10 Gate Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 5 Outline Dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Version 2.1 Quasi-Resonant PWM Controller 4 ICE2QS03 Page April 21, 2011 ...
Page 5
... HV current once the supply bus voltage is applied. VCC (Power supply) VCC pin is the positive supply of the IC. The operating range is between V GND (Ground) This is the common ground of the controller. 5 ICE2QS03 Pin Functionality . Internally, this pin is FB with decreasing load during and V ...
Page 6
... Representative Block diagram Figure 2 Representative Block diagram Version 2.1 Quasi-Resonant PWM Controller Representative Block diagram 6 ICE2QS03 April 21, 2011 ...
Page 7
... Functional Description 3.1 VCC Pre-Charging and Typical VCC Voltage During Start-up In ICE2QS03, a high voltage startup cell is integrated. As shown in Figure 2, the start cell consists of a high voltage device and a controller, whereby the high voltage device is controlled by the controller. The startup cell provides a pre-charging of the VCC ...
Page 8
... Once higher than V , but FBZH always lower than V FBR1 Once higher than V FBR1 In the ICE2QS03, the number of zero crossing is limited to 7. Therefore, the counter varies between 1 and 7, and any attempt beyond this range is ignored. When V exceeds V voltage, the up/down counter FB FBR1 is initialised order to allow the system to react rapidly to a sudden load increase ...
Page 9
... To keep a constant maximum input power of the converter, the Once the FB , the output flip-flop FB and the [4] 9 ICE2QS03 Functional Description Current Limitation . By means integrated in the current LEB ) which could occur if CSSW is integrated in CSSW Foldback Point Correction voltage limit according ...
Page 10
... V ideal curve shown in Figure nonlinear one, a digital block in ICE2QS03 is implemented to get a better control of maximum output power. Additional advantage to use digital circuit is the production tolerance is smaller compared to analog solutions. The typical maximum limit on V ...
Page 11
... VCC voltage is charged to 18V then the startup cell is shut down again and repeats the previous procedure. There is also an maximum on time limitation inside t ICE2QS03. Once the gate voltage is high longer than turned off immediately. OnMAx t ...
Page 12
... V -0.3 OUT I 3 ZCMAX - - thJA V - ESD Symbol Limit Values min. max VCC VCCoff VCCOVP T -25 125 jCon 12 ICE2QS03 Electrical Characteristics Unit Remarks max. 500 5.0 V 5 C 125 C 150 90 K/W PG-DIP Human body model Unit Remarks V °C April 21, 2011 ...
Page 13
... VCCburst V 17.0 18.0 19.0 VCCon V 9.8 10.5 11.2 VCCoff V - 7.5 - VCChys Symbol Limit Values min. typ. max. V 4.80 5.00 5.20 REF 13 ICE2QS03 Electrical Characteristics = assumed. Unit Test Condition -0.2V VCC VCCon VCC VCC -0.2V VCC VCCon -0.2V VCC VCCon ...
Page 14
... SS_S 1.76 SS1 0.56 SS_S Symbol Limit Values min. typ. I 0.35 0.5 ZC_FS I 1.8 2 ZC_LS V - 0.66 CSMF 14 ICE2QS03 Electrical Characteristics Unit Test Condition max. 33 k s 41 Unit Test Condition max. 1.09 V 460 ns 0.39 V Unit Test Condition max Unit Test Condition max ...
Page 15
... ZCRS t 1.8 2.5 ZCRS1 ZCRS2 V 3.9 FBR1 V 3.2 FBZHL V 2.5 FBZLL V 2.9 FBZHH V 2.3 FBZLH I - 1.3 ZCSH I - 0.8 ZCSL t 48 COUNT OffMax 15 ICE2QS03 Electrical Characteristics Unit Test Condition max. 170 s 3.4 V > ZCRS < ZCRS s 57.5 April 21, 2011 ...
Page 16
... Symbol Limit Values min. typ. V 24.0 25.0 VCCOVP V 4.5 FBOLP OLP_B V 3.55 3.7 ZCOVP t 100 ZCOVP V 1.63 1.68 CSSW t - 190 CSSW T - 140 jCon 16 ICE2QS03 Electrical Characteristics Unit Test Condition max kHz - Unit Test Condition max. 26 3.84 V s 1. April 21, 2011 VCCOVP ...
Page 17
... Output voltage active shut down V Rise Time Fall Time Version 2.1 Quasi-Resonant PWM Controller Symbol Limit Values min. typ GATElow V 9.0 10.0 GATEhigh GATEasd t - 117 rise fall 17 ICE2QS03 Electrical Characteristics Unit Test Condition max. 1 =18V VCC I = 10mA OUT V V =18V VCC I = -10mA OUT 1 VCC V ...
Page 18
... Outline Dimension PG-DIP-8-6 / PG-DIP-8-9 (Leadfree Plastic Dual In-Line Outline) Figure 9 PG-DSO-8 (Pb-free lead plating Plastic Dual Small Outline) Dimensions in mm Version 2.1 Quasi-Resonant PWM Controller Outline Dimension 18 ICE2QS03 April 21, 2011 ...
Page 19
... Published by Infineon Technologies AG umfassende Throughout the corporation we also think in terms of Time Optimized Processes (top), greater speed on our part to give you that decisive competitive edge. ...