HT45B0016 Wireless Charger Transmitter s Power Stage

Transcription

1 Wireless Charger Transmitter s Power Stage Features Integrated Low Side NMOS: VCC= Integrated High Side NMOS: VCC= Integrated OCP function with over current trigger point adjustable using an external resistor Integrated OTP function Enable pin () controls the output status Package type: -pin QFN General Description The HT5B006 is a two-in-one power half-bridge chip developed by Holtek for wireless charger applications. The half-bridge power stage with integrated NMOS, can work with the HT66FW0 or HT66FW50 to achieve complete wireless charger solutions. The input range is.~ covering various wireless charger transmitter types. The HT5B006 chip can be flexibly used in differenct architectures, a single chip for halfbridge driver LC series resonance and two chips for full-bridge driver LC series resonance. Combined with the HT66FW0 or HT66FW50 software arhcitecture, a half-bridge solution can be used for low power applications while a full-bridge solution can be used for medium power applications. The HT5B006 is supplied in the -pin QFN package type. The PCB layout and other important information are provided in the following sections. Pin Assignment P BST PVCC VCC OCSET A 5 P P PWM 5 P 6 P HT5B006 QFN-A Order Number Marking Temp. Range Package (Green) HT5B006QTU HT5B006-0 C to +85 C QFN (mm mm) Note: QT: QFNX-; : Bonding Code; U: Tape & Reel; Green: Lead Free / Halogen Free. Rev..00 March 08, 08

2 Pin Description No. Pin Name Description OCSET OCP setup; connects a resistor to ground for OCP trigger setup., Enable pin. High=enable; Low=disable. Can not be floating. A Analog ground 5 PWM Driver PWM input 6, 7, 8, 9,, Power supply 0,, 6, 7, 8, 5,,, 5, 9 P Power supply ground High side and low side MOSFET node. PWM output voltage connects the output LC resonance circuit. 0 BST Boost capacitor connection; externally connects a capacitor to. PVCC Driver power supply VCC Analog power supply for internal circuits; connects a bypass capacitor to A. Absolute Maximum Ratings to A...-0.V to 0V VCC to A...-0.V to 6V PVCC to A...-0.V to 6V, OCSET, PWM to A...-0.V to 6V BST to P...-0.V to to BST...-6V to 0.V Thermal Resistance of Juntion to Ambient, (θja) QFNX-...5 C/W JunctionTemperature...50 C Storage Temperature C to 50 C Reflow Temperature (soldering, 0 seconds)...00 C Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of the device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect devices reliability. Electrical Characteristics The device is not guaranteed to function outside its operating conditions. Parameters with Min. and/or Max. limits are 00% tested at +5 C, unless otherwise specifed. Parameter Conditions Min. Typ. Max. Unit Input Voltage Range.5 5 V VCC Input Voltage Range VCC V Quiescent Supply Current (VCC) =High, PWM=Low 0 50 μa Shutdown Current (VCC) =Low μa VCC Rising POR Threshold.7.0. V VCC POR Hysteresis mv Zero Current Detect -P -5 5 mv OCSET Current Source 9 0 μa Thermal Shutdown Threshold Hysteresis=5 C 5 C High Side Switch Resistance BST- forced to, VCC= 0 mω Low Side Switch Resistance VCC= mω PWM Input Logic Threshold Tri-state Input Rising Logic Threshold PWM Rising (VTH_PWM_R).6.9. PWM Falling (VTH_PWM_F).0.. PWM Rising (VTH_PWM_R).0..6 V Hysteresis mv V Rev..00 March 08, 08

3 Parameter Conditions Min. Typ. Max. Unit Tri-state Input Falling Logic Threshold PWM Falling (VTH_PWM_F)..7.0 V Hysteresis mv Logic Input High Voltage.0 V Logic Input Low Voltage 0.8 V PWM to High Side Gate (tpd_off_dh) PWM High to Low to DH High to Low 0 ns PWM to Low Side Gate (tpd_off_dl) PWM Low to High to DL High to Low 0 ns Low to High Side Gate Deadtime (tpd_on_dh) DL High to Low to DH Low to High 0 ns High to Low Side Gate Deadtime (tpd_on_dl) DH High to Low to DL Low to High 0 ns PWM Timing Diagram PWM t PD_OFF_DL DL t PD_ON_DL t PD_OFF_DL DH t PD_ON_DL PWM Logic Output vs. Status PWM DH DL L x L L H H H L H L L H Note: L=Low; H=High; x=don t care. Output Truth Table Rev..00 March 08, 08

4 Rev..00 March 08, 08 HT5B006 Application Circuits 5W Wireless Charger TX MP-A Type J OCDS RSE 0.05R C 0n/50v R6 k/% C 0uF/5v D LED(G) C8 7nF/50V/NPO C C0.7nF/6v C 0.uF/50V/NPO C8 0uF/0v D BAVWS C C 0PF/6v R0 k R k/% C0 R8 0K Temp. C9 C 680pF D LED(R) R5 K R k L WPC_L R 6.8K C 0uF/5v L WPC_L R k C9 R 0k R6 00K C 5.6n/50v C6 0.uF/50V/NPO C5 0uF/5v R 00K R 00k/% C7 DetectVin Isen Idemo FODtemp R.5k OCDSCK OCDSDA Vdemo DEMOAP PLLCOML R 00k C6 J Vin=v J Vdemo TP_ V-Demodulation Full-Bridge Resonance Temperature Sensor R7 k C5 0n/5v C 5nF/5v R9 0k R8 60k R0 0k R 0k C6.7n/0v C7 0.u/0v Idemo TP_6 I-Demodulation C 0uF/5v C 0.uF/50v LHB RHB C6 0uF/0v C7 7nF/50v R6 k R9 0k Current Sensor Vin OSC OSC C8 0p/0v C5 0p/0v Y 8MHz Vin Vout U LDO HT7550- DEMO0AP DEMO0AN DEMO0CX Vin PLLCOML OSC OSC Vin AVDD AVDD AVSS AVSS VDD VSS Isen Idemo LED LED LED LED Vr D6 RB60M-0 Vr VrL R k TP_8 Resonant Voltage Detect MCU Control Input Power PC/DEMOAX PC/DEMOCP PC/DEMOCN PC/DEMOCX PC5/STCK/DEMO0/AN5/VREFI 5 PC6/STP/AN/VREF 6 PA0/AN0/STPB/ICPDA 7 PA/CTCK/AN/ICPCK 8 PB/DEMO0AX PB/DEMO0AN PB/DEMO0AP PB0/OCP PD/PTCK/OSC 0 PD/PTP/OSC 9 PD0/PTPI/INT/SCL/FSKD 8 PC7/INT0/SDA/DEMO 7 PA7/PWM 6 PA6/PWM 5 PA5/PWM PA/PWM0 VDD VSS PA/AN/CTPB 0 PA/AN/CTP/STPI 9 PC0/DEMOAN PB7/DEMOAP PB6/DEMO0CX 0 PB5/DEMO0CN 9 AVSS 8 PLLCOM 7 AVDD 6 PB/DEMO0CP 5 Lead 0 U HT66FW50 QFN OCDSCK OCDSDA TP_5 TP_7 FODtemp PWM PWM0 VDD VSS VrL DEMO0AX DEMO0CP DEMO0CN DetectVin DEMOAP DEMOAX DEMOAN DEMOCP DEMOCX DEMOCN DEMO0AP DEMO0AN DEMO0AX DEMO0CP DEMO0CN J5 DC. VSS C9.nF/50V R5 C0.nF/50V R5 G S D Q R59 RSE 0.05R R9 00K C7 R C 00nF/0v R R5 R0 M DEMOAN DEMOAX DEMOCP DEMOCN DEMOCX R7 C5 TP_ C C C.nF/50V R5 C.nF/50V R55 Cs TP_ TP_ TP_9 C5 J C6 R57 R56 D SS G S D Q6 N700 R60 G S D Q7 N700 R6 R6 R R6 0K R6 0K R65 R66 DEMOCP DEMOCN DEMOCX AN5 R68 k/% R67 C7 AN5 LHB _BUS _BUS R69 00k/% C8 R70 R7 Q8 SIA5EDJ R7 0K R7 0K C0 0uF/5v C 0.uF/50v PWM0 PWM R50.K C9 C Driver_en Driver_en Driver_en R5.K OCSET 6 A PWM 5 7 8,9,, 0,,6,7,8,5 P,,,5,9 BST 0 PVCC VCC Q9 HT5B006 OCSET 6 A PWM 5 7 8,9,, 0,,6,7,8,5 P,,,5,9 BST 0 PVCC VCC Q0 HT5B006

5 Layout Guide Component Reference: CVCC CIN CBST ROCSET 060 Layout Considerations: 0.μF/060 0μF/ μF/0805 Layout Reference Circuit. The input capacitor CIN should be placed as close to the pin as possible. The power flows through CIN first and then enters the pin.. The inductor should be placed as close to the pin as possible to reduce system noise inteference resulting from the copper.. All analog signals should be as far away from the high voltage switching (, BST, etc) as possible. Rev March 08, 08

6 Package Information Note that the package information provided here is for consultation purposes only. As this information may be updated at regular intervals users are reminded to consult the Holtek website for the latest version of the package information. Additional supplementary information with regard to packaging is listed below. Click on the relevant section to be transferred to the relevant website page. Further Package Information (include Outline Dimensions, Product Tape and Reel Specifications) Packing Meterials Information Carton information Rev March 08, 08

7 SAW Type -pin QFN (mm mm 0.8mm) Outline Dimensions E E E D D5 D D D D D L E A A A b e Symbol Dimensions in inch Min. Nom. Max. A A A BSC b D E e 0.00 BSC D 0.0 BSC E 0.0 BSC D E D D D L Symbol Dimensions in mm Min. Nom. Max. A A A 0.0 BSC b D E e 0.50 BSC D 0.0 BSC E 0.0 BSC D E D D D L Rev March 08, 08

8 Copyright 08 by HOLTEK SEMICONDUCTOR I. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek's products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at Rev March 08, 08