CPZ1061M POWERINT | Alldatasheet

Document overview

  • Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
  • PDF pages: 17

Technical content

Figure 3. Block Diagram.

Figure 4. Pin Configuration. These pins are not electrically connected. Pin 5 must connect to S1 pin. Source connection of low-side controller. InnoSwitch4 primary to draw power from auxiliary winding. Supply voltage for high-side controller. Source connection of high-side switch. high-side power switch with gate driver. highlighting the most important features. communicate the drive instruction to the high-side driver stage. the high-side switch when HSD signal is below V IN(F).

9 BP2

overshoot of primary clamp voltage. must rise to VBP2 to re-enable turn-on of the power switch. BP2 charge current during steady-state operation.

  • InnoSwitch4, after receiving the Flux Link pulse, does not immedi- ately turn on primary switch.
  • InnoSwitch4 primary controller first generates a fixed duration pulse on the HSD pin. This pulse will control the power switch inside ClampZero, and the switch will be turned on when HSD pulse is high. ClampZero starts recycling clamp capacitor energy to output and also building up energy on transformer magnetizing inductance and leakage inductance which are used later for ZVS.
  • After InnoSwitch4 terminates the HSD pulse, it waits for additional delay and then turns on the primary switch. This delay is program- mable by InnoSwitch4. During this delay, the energy built up at magnetizing inductance and leakage inductance will help discharge COSS of primary switch in InnoSwitch4 to achieve ZVS.

voltage on the ClampZero IC (U2) to provide soft turn-on. Capacitor C16 is used to provide local decoupling at the BP1 pin. block is powered from an auxiliary winding on the transformer T1. supplied to the PRIMARY BYPASS pin of InnoSwitch4 IC (U1). current limit for the specific operating state. prevent any further increase in output voltage.

1 FL2

250 VAC

310 VAC

Figure 5. Schematic 20 V / 3.25 A Notebook Adapter Power Supply. DOE Level 6 and EC CoC v5 compliant. output and input helps to reduce common mode EMI. power supply is disconnected from AC mains. sense protection for undervoltage and overvoltage conditions. voltages if there is any malfunction of the power supply.

20 V, 9 A

Figure 8. Schematic 20 V / 9 A Power Supply. design exceed requirement for DOE Level 6 and EC CoC v5 compliant. input helps to reduce common mode EMI. voltage sense protection for undervoltage and overvoltage conditions. drain voltages if there is any malfunction of the power supply. delay is programmable by different resistor values of R26. Capacitor C20 is used to provide local decoupling at the BP1 pin. current limit for the specific operating state.

Rev. G 07/22 ClampZero www.power.com breakdown of VR2, which then causes a current to flow into the BPP pin of InnoSwitch4 IC U3. If the current flowing into the BPP pin increases above the ISD threshold, the U3 controller latches off to prevent any further increase in output voltage. The secondary-side of the InnoSwitch4 IC provides output voltage, output current sensing, and drive to a MOSFET providing synchronous rectification. The secondary of the transformer is rectified by SR FET’s Q1, Q2 and diode D3 and filtered by capacitors C26 – C30. Capacitor C32 is used to reduce the high-frequency output voltage ripple. High-frequency ringing during switching transients that would otherwise create radiated EMI is reduced via RCD snubber R28, C22, and D6. Diode D6 minimizes the dissipation in resistor R28. The gate of Q1 and Q2 is turned on by the secondary-side controller of IC U3, based on the winding voltage sensed via resistor R19 and fed into the FWD pin of the IC. In continuous conduction mode of operation, the SR MOSFET is turned off just prior to the secondary side commanding a new switching cycle from the primary. In discontinuous mode of operation, the power MOSFET is turned off, when the voltage drop across the MOSFET falls below a threshold of approximately VSR(TH) mV. The secondary-side of the IC U3 is self-powered from either the secondary winding forward voltage or the output voltage. Capacitor C23 connected to the BPS pin of IC U3 provides decoupling for the internal circuitry. Below the CC threshold, the device operates in constant voltage mode. During constant voltage mode operation, output voltage regulation is achieved through sensing the output voltage via divider resistors R23 and R27. The voltage across R27 is fed into the FB pin with an internal reference voltage threshold of 1.265 V. The output voltage is regulated so as to achieve a voltage of 1.265 V on the FB pin. Capacitor C25 provides noise filtering of the signal at the FB pin. Resistor R22 together with C31 forms a feed forward circuit and reduces the output triple. During CC operation, when the output voltage falls, the device directly powers itself from the secondary winding. During the on-time of the primary-side power switch, the forward voltage that appears across the secondary winding is used to charge the decoupling capacitor C23 via resistor R19 and an internal regulator. This allows output current regulation to be maintained down to ~3.4 V depending on the trim configuration. Output current is sensed by monitoring the voltage drop across resistor R30 – R32 between the IS and SECONDARY GROUND pins. A threshold of approximately 35 mV reduces losses. Resistor R17 and capacitor C21 provides filtering on the IS pin from external noise. Once the internal current sense threshold is exceeded, the device regulates the number of switch pulses to maintain a fixed output current.

Rev. G 07/22 ClampZero www.power.com Key Application Considerations No-load Consumption The ClampZero device draws energy from the BP1 pin decoupling capacitor, which is supplied by the internal tap of InnoSwitch4. The InnoSwitch4 IC can start in self-powered mode, drawing energy from the BYPASS pin capacitor charged through an internal current source. Use of a bias winding, however, is required to provide supply current to the PRIMARY BYPASS pin, once the InnoSwitch4 IC has started switching. An auxiliary (bias) winding provided on the transformer serves this purpose. The high-side BP2 pin decoupling capacitor of the ClampZero device draws energy from the internal tap, once the power supply starts switching. In order to minimize the no-load consumption, a bootstrap diode D6 is recommended. Resistors R8 and R18 shown in Figure 5 should be adjusted to achieve the lowest no-load input power. ClampZero typically consumes ~35 µA from the BP1 pin and ~50 µA from the BP2 pin at no-load, adding only a few mW to total system losses. Critical Components Selection BP2 Pin Decoupling Capacitor The high-side BYPASS pin has an internal regulator that charges BP2 to VBP2 by drawing current from the DRAIN pin whenever the power switch is off. The amount of charge current available for BP2 is important in order to have fast start-up from initial switching of InnoSwitch4. Thus, the BP2 capacitor value is set to 150 nF. A higher value BP2 capacitor is undesirable, because too much start-up delay may cause overshoot of the primary clamp voltage. A 100 nF to 220 nF capacitor may be used. At least 10 V, 0603 or larger size rated X5R or X7R dielectric capacitors are recommended to ensure that minimum capacitance requirements are met. The ceramic capacitor type designations, such as X7R or X5R from different manufacturers or different product families, do not have the same voltage coefficients. It is recommended that capacitor data sheets be reviewed to ensure that the selected capacitor will not have more than 20% drop in capacitance at 5 V. Do not use Y5U or Z5U / 0402 rated MLCC, because this type of SMD ceramic capacitor has very poor voltage and temperature coefficient characteristics. Bias Winding and External Bias Circuit The internal regulator connected from the DRAIN pin of the switch to the PRIMARY BYPASS pin of the InnoSwitch4 primary-side controller charges the capacitors connected to the InnoSwitch4 BPP pin and ClampZero BP1 pin to achieve start-up. A bias winding should be provided on the transformer with a suitable rectifier and filter capacitor to create a bias supply that can be used to supply current to the BPP and BP1 pins. The turns ratio for the bias winding should be selected such that a minimum of ~8 V is developed across the bias winding at the lowest rated output voltage of the power supply at the lowest load condition. If the voltage is lower than this, no-load input power increases. The bias current from the external circuit should be set to I S1(MAX) to achieve lowest no-load power consumption when operating the power supply at 230 VAC input, (VBPP > 5 V). An aluminum capacitor of at least 22 µF with a voltage rating 1.2 times greater than the highest voltage developed across the capacitor is recommended. Highest voltage is typically developed across this capacitor when the supply is operated at the highest rated output voltage and load with the lowest input AC supply voltage. Clamp Capacitor It is recommended to choose the value of the clamp capacitor such that ~0.25 times the resonant period of the C CLAMP and LLKG equals the HSD pulse width. Capacitance in the range of 10 nF to 100 nF may be used depending on the design. At least 200 V, 1206 or larger size rated X7R dielectric capacitors are recommended. HSDP ulseWidth 2 LCLKGC LAMP\` r Layout Considerations The following layout considerations are specifically for the ClampZero components. For placement and layout of InnoSwitch4 specific and power components, check the InnoSwitch4 data sheet. 1. The ClampZero BP1 pin is supplied and regulated by the InnoSwitch4 internal BPP regulator. A separate decoupling capacitor needs to be placed very close to the BP1 pin of the ClampZero device. 2. The high-side BP2 pin is supplied by the internal drain tap during startup until the external bias is available from an external bootstrap circuit. A decoupling capacitor should be placed very close to the BP2 pin of the ClampZero IC. 3. Even though ClampZero conducts only for a short period and dissipates a small amount of power, some amount of PCB copper heat sinking on the source pin of the ClampZero device is required to minimize the thermals. 4. It is recommended to place the bootstrap components close to the BP2 and SOURCE pins of the ClampZero device to minimize the noise coupling into other parts of the circuit. 5. Place the ClampZero IC as close as possible to the clamp capacitor and transformer to minimize the clamp loop area. Figure 2 shows the ClampZero layout used for the design in Figure 5 following the recommendations stated above. Quick Design Checklist Aside from the verification of the functionality of the InnoSwitch4 IC, proper operation of the ClampZero IC must also be checked. At the minimum, the following verification tests must be performed. 1. Maximum Drain Voltage – Verify that VDS of ClampZero does not exceed 90% of the breakdown voltage at the highest input voltage and peak (overload) output power in normal operation and during start-up. 2. Maximum Drain Current – Under all conditions, the maximum drain current for the ClampZero switch should be below the specified absolute maximum rating. 3. Thermal Check – Verify that the ClampZero IC does not cause an OTP fault when operating at maximum load throughout the whole input range. Sufficient bias current needs to be supplied to the BP2 pin of the ClampZero device; otherwise, operating with the internal tap can result in higher dissipation on the ClampZero device and eventually reach extreme operating conditions. Triggering OTP of the ClampZero device can cause additional thermal stress on the InnoSwitch4 device and the TVS device used across the clamp capacitor because of loss of zero voltage switching. This can also increase voltage stress on the DRAIN pin of the InnoSwitch4 and ClampZero devices.

Rev. G 07/22 ClampZero www.power.com Absolute Maximum Ratings 1,2 Notes: 1. All voltages referenced to low-side or high-side source, T A = 25 °C. 2. Maximum ratings specified may be applied one at a time without causing permanent damage to the product. Exposure to Absolute Maximum Ratings conditions for extended periods of time may affect product reliability. 3. Please refer to Figure 9 about maximum allowable voltage and current combinations. 4. Normally limited by internal circuitry. 5. 1/16” from case for 5 seconds. 6. Maximum drain voltage (non-repetitive pulse) 750 V, maximum continuous voltage 650 V. 7. Please refer to Figure 17 about maximum voltage and current combinations. 8. Minimum drain voltage (non-DC). Parameter Symbol Conditions SOURCE = 0 V TJ = -40 °C to 125 °C (Unless Otherwise Specified) Min Typ Max Units Control Functions BP2 Supply Current IS1(2) VBP2 = VBP2 + 0.1 V (Switch not Switching) TJ = 25 °C 35 47 55 µA IS2(2) VBP2 = VBP2 + 0.1 V (Switch Switching at fOSC = 180 kHz) TJ = 25 °C CPZ1061M 400 580 800 µACPZ1062M 600 760 950 CPZ107xM 1490 1700 BP2 Pin Charge Current ICH1(2) VBP2 = 0 V TJ = 25 °C 4.2 5.2 6.2 mA ICH2(2) VBP2 = 4 V TJ = 25 °C 4.2 5.2 6.2 BP2 Pin Voltage VBP2 4.8 5 5.2 V BP2 Pin Voltage Hysteresis VBP2(H2) 0.38 0.6 0.8 V BP2 Shunt Voltage VSHUNT2 IBP2 = 2 mA 5.2 5.45 5.7 V BP2 Power-Up Reset Threshold voltage VBP2(RESET)2 TJ = 25 °C CPZ1061M CPZ1062M 3 3.23 3.45 V CPZ1075M CPZ1076M 3.1 3.45 Thermal Resistance Thermal Resistance: CPZ106xM CPZ107xM Notes: 1. Case termperature measured at top center of package body. 3. Solder to 1 sq. in (645 mm2), 2 oz. (610 g/m2) copper clad.

Rev. G 07/22 ClampZero www.power.com Parameter Symbol Conditions SOURCE = 0 V TJ = -40 °C to 125 °C (Unless Otherwise Specified) Min Typ Max Units Control Functions (cont.) BP1 Power-Up Reset Threshold voltage VBP1(RESET)2 TJ = 25 °C 3.4 3.8 4.2 V BP1 Supply Current (Load) IS1(1) Non Switching, VBP1 = 5.1 V IN: 0 V TJ = 25 °C 20 30 50 µA IS2(1) Switching, IN: 500 ns Pulse at 180 kHz VBP1 = 5.1 V TJ = 25 °C 60 80 100 µA IN Pin Voltage Rising Threshold VIN(R) 2.75 2.93 3.25 V IN Pin Voltage Falling Threshold VIN(F) 1.6 1.82 2.1 V Delay from HSD High to ClampZero ON DHSD(ON) CPZ1061M; CPZ1062M 30 57 100 ns CPZ1075M; CPZ1076M 54 100 Delay From HSD Low To ClampZero OFF DHSD(OFF) CPZ1061M 35 55 80 ns CPZ1062M 42 62 90 CPZ1075M 67 100 CPZ1076M 72 100 Circuit Protection Thermal Shutdown TSD 135 142 150 °C Thermal Shutdown Hysteresis TSD(H) 70 °C

Rev. G 07/22 ClampZero www.power.com Parameter Symbol Conditions SOURCE = 0 V TJ = -40 °C to 125 °C (Unless Otherwise Specified) Min Typ Max Units

Electrical Characteristics

VBP2 = VBP2 + 0.1 V VDS = 80% Peak Drain Voltage TJ = 125 °C 200 µA IDSS2 VBP2 = VBP2 + 0.1 V VDS = 325 V TJ = 25 °C 15 µA On-State Resistance RDS(ON) CPZ1061M ID = 300 mA TJ = 25 °C 3.20 3.68 W ID = 300 mA TJ = 100 °C 4.96 5.70 CPZ1062M ID = 300 mA TJ = 25 °C 1.95 2.24 ID = 300 mA TJ = 100 °C 3.02 3.47 CPZ1075M ID = 2 A TJ = 25 °C 0.85 1.20 ID = 2 A TJ = 100 °C 1.35 1.80 CPZ1076M ID = 4 A TJ = 25 °C 0.52 0.78 ID = 4 A TJ = 100 °C 0.78 1.17

Rev. G 07/22 ClampZero www.power.com C POD_MinSOP-16A_E_042922 PI-8833-051622 MinSOP-16A (M Package) 12 Leads0.29 0.17 1.16 Ref. Detail A END VIEW 1.35 1.23 5.67 BOTTOM VIEW A

0.10 C A

4 Lead Tips

0.30 0.20 0.42 Ref. Pin #1 I.D. 2.03 Ref. 9.00 0.665 11.32

0.25 M C A B

B 0.15 C

8 Lead Tips

0.15

0.10 C B

0.85 0.55 0.22 0.07 Standoff 0.19 Gauge Plane Seating Plane 0.46 Ref. DETAIL A H 0° – 8° 2.16 Max. Total Mounting Height Seating Plane Coplanarity: 12 Leads 1.94

1.74 Body Thickness

C 0.10 C Notes: 1. Dimensioning and tolerancing per ASME Y14.5M-1994. 2. Dimensions noted are determined at the outermost extremes of the plastic body exclusive of mold flash, tie bar burrs, gate burrs, and inter-lead flash, but including any mismatch between the top and bottom of the plastic body. Maximum mold protrusion is 0.18 per side. 3. Dimensions noted are inclusive of plating thickness. 4. Does not include inter-lead flash or protrusions. 5. Controlling dimensions in millimeters. 6. Datums A and B to be determined at Datum H. 7. This dimension is the nominal dimension between leadtips, not including plating, and not including metal protrusions. Metal-to-metal distance (Creepage) is 1.85 mm minimum.

Rev. G 07/22 ClampZero www.power.com PI-9220a-111720 MinSOP-16A A. Power Integrations Registered Trademark B. Assembly Date Code (last two digits of year followed by 2-digit work week) C. Product Identification (Part #/Package Type) D. Lot Identification Code PACKAGE MARKING A D C BCPZ1061M YYWW %%7654321A Part Ordering Information

  • ClampZero Product Family
  • Series Number
  • Package Identifier M MinSOP-16A
  • Tape & Reel and Other Options TL Tape & Reel, 2 k pcs per reel. CPZ 1061 M - TL

Rev. G 07/22 ClampZero www.power.com MSL Table Part Number MSL Rating CPZ1061M CPZ1062M CPZ1075M CPZ1076M Part Ordering Information

  • ClampZero Product Family
  • Series Number
  • Package Identifier M MinSOP-16A
  • Tape & Reel and Other Options TL Tape & Reel, 2 k pcs per reel. CPZ 1061 M - TL

C Production release. 11/20 D Introduction of part numbers CPZ1075M, CPZ1076M. 01/22 E Production release of PowiGaN devices and update the DHSD(ON), DHSD(OFF) and RDS(ON). 03/22 F Updated MinSOP-16A (M package) drawing. 05/22 G Updated DRAIN Pin Voltage and Peak Current values in Abs Max Ratings table. 07/22 For the latest updates, visit our website: www.power.com Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any device or circuit described herein. POWER INTEGRATIONS MAKES NO WARRANTY HEREIN AND SPECIFICALLY DISCLAIMS ALL WARRANTIES INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS. Patent Information The products and applications illustrated herein (including transformer construction and circuits external to the products) may be covered by one Power Integrations patents may be found at www.power.com. Power Integrations grants its customers a license under certain patent rights as set forth at www.power.com/ip.htm. Life Support Policy POWER INTEGRATIONS PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF POWER INTEGRATIONS. As used herein: 1. A Life support device or system is one which, (i) is intended for surgical implant into the body, or (ii) supports or sustains life, and (iii) whose failure to perform, when properly used in accordance with instructions for use, can be reasonably expected to result in significant injury or death to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Power Integrations, the Power Integrations logo, CAPZero, ChiPhy, CHY, DPA-Switch, EcoSmart, E-Shield, eSIP, eSOP, HiperLCS, HiperPLC, HiperPFS, HiperTFS, InnoSwitch, Innovation in Power Conversion, InSOP, LinkSwitch, LinkZero, LYTSwitch, SENZero, TinySwitch, TOPSwitch, PI, PI Expert, PowiGaN, SCALE, SCALE-1, SCALE-2, SCALE-3 and SCALE-iDriver, are trademarks of Power Integrations, Inc. Other trademarks are property of their respective companies. ©2022, Power Integrations, Inc. World Headquarters

5245 Hellyer Avenue

San Jose, CA 95138, USA Main: +1-408-414-9200 Customer Service: Worldwide: +1-65-635-64480 Americas: +1-408-414-9621 e-mail: usasales@power.com China (Shanghai) Rm 2410, Charity Plaza, No. 88 North Caoxi Road Shanghai, PRC 200030 Phone: +86-21-6354-6323 e-mail: chinasales@power.com China (Shenzhen) 17/F, Hivac Building, No. 2, Keji Nan 8th Road, Nanshan District, Shenzhen, China, 518057 Phone: +86-755-8672-8689 e-mail: chinasales@power.com Italy Via Milanese 20, 3rd. Fl.

20099 Sesto San Giovanni (MI) Italy

Phone: +39-024-550-8701 e-mail: eurosales@power.com Japan Yusen Shin-Yokohama 1-chome Bldg. 1-7-9, Shin-Yokohama, Kohoku-ku Yokohama-shi, Kanagawa 222-0033 Japan Phone: +81-45-471-1021 e-mail: japansales@power.com Korea RM 602, 6FL Korea City Air Terminal B/D, 159-6 Samsung-Dong, Kangnam-Gu, Seoul, 135-728, Korea Phone: +82-2-2016-6610 e-mail: koreasales@power.com Singapore

51 Newton Road

#19-01/05 Goldhill Plaza Singapore, 308900 Phone: +65-6358-2160 e-mail: singaporesales@power.com Taiwan 5F, No. 318, Nei Hu Rd., Sec. 1 Nei Hu Dist. Taipei 11493, Taiwan R.O.C. Phone: +886-2-2659-4570 e-mail: taiwansales@power.com UK Building 5, Suite 21 The Westbrook Centre Milton Road Cambridge CB4 1YG Phone: +44 (0) 7823-557484 e-mail: eurosales@power.com Power Integrations Worldwide Sales Support Locations Germany (AC-DC/LED/Motor Control Sales) Einsteinring 24

85609 Dornach/Aschheim

Tel: +49-89-5527-39100 e-mail: eurosales@power.com Germany (Gate Driver Sales) HellwegForum 3

59469 Ense

Tel: +49-2938-64-39990 e-mail: igbt-driver.sales@power.com India #1, 14th Main Road Vasanthanagar Bangalore-560052 India Phone: +91-80-4113-8020 e-mail: indiasales@power.com