S6BP202A ASSP 42V, 2.4A, Synchronous Buck-boost DC/DC Converter IC Data Sheet (Preliminary) Notice to Readers: This document states the current technical specifications regarding the Cypress product(s) described herein. The Preliminary status of this document indicates that product qualification has been completed, and that initial production has begun. Due to the phases of the manufacturing process that require maintaining efficiency and quality, this document may be revised by subsequent versions or modifications due to changes in technical specifications. Publication Number S6BP202A_DS405-00027 CONFIDENTIAL Revision 0.2 Issue Date September 4, 2015 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) Notice On Data Sheet Designations Cypress Semiconductor Corp. issues data sheets with Advance Information or Preliminary designations to advise readers of product information or intended specifications throughout the product life cycle, including development, qualification, initial production, and full production. In all cases, however, readers are encouraged to verify that they have the latest information before finalizing their design. The following descriptions of Cypress data sheet designations are presented here to highlight their presence and definitions. Advance Information The Advance Information designation indicates that Cypress Semiconductor Corp. is developing one or more specific products, but has not committed any design to production. Information presented in a document with this designation is likely to change, and in some cases, development on the product may discontinue. Cypress Semiconductor Corp. therefore places the following conditions upon Advance Information content: “This document contains information on one or more products under development at Cypress Semiconductor Corp. The information is intended to help you evaluate this product. Do not design in this product without contacting the factory. Cypress Semiconductor Corp. reserves the right to change or discontinue work on this proposed product without notice.” Preliminary The Preliminary designation indicates that the product development has progressed such that a commitment to production has taken place. This designation covers several aspects of the product life cycle, including product qualification, initial production, and the subsequent phases in the manufacturing process that occur before full production is achieved. Changes to the technical specifications presented in a Preliminary document should be expected while keeping these aspects of production under consideration. Cypress places the following conditions upon Preliminary content: “This document states the current technical specifications regarding the Cypress product(s) described herein. The Preliminary status of this document indicates that product qualification has been completed, and that initial production has begun. Due to the phases of the manufacturing process that require maintaining efficiency and quality, this document may be revised by subsequent versions or modifications due to changes in technical specifications.” Combination Some data sheets contain a combination of products with different designations (Advance Information, Preliminary, or Full Production). This type of document distinguishes these products and their designations wherever necessary, typically on the first page, the ordering information page, and pages with the DC Characteristics table and the AC Erase and Program table (in the table notes). The disclaimer on the first page refers the reader to the notice on this page. Full Production (No Designation on Document) When a product has been in production for a period of time such that no changes or only nominal changes are expected, the Preliminary designation is removed from the data sheet. Nominal changes may include those affecting the number of ordering part numbers available, such as the addition or deletion of a speed option, temperature range, package type, or VIO range. Changes may also include those needed to clarify a description or to correct a typographical error or incorrect specification. Cypress Semiconductor Corp. applies the following conditions to documents in this category: “This document states the current technical specifications regarding the Cypress product(s) described herein. Cypress Semiconductor Corp. deems the products to have been in sufficient production volume such that subsequent versions of this document are not expected to change. However, typographical or specification corrections, or modifications to the valid combinations offered may occur.” Questions regarding these document designations may be directed to your local sales office. 2 CONFIDENTIAL S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2 S6BP202A ASSP 42V, 2.4A, Synchronous Buck-boost DC/DC Converter IC Data Sheet (Preliminary) 1. Description S6BP202A is a 1ch Buck-boost DC/DC converter IC with four built-in switching FETs. This IC is able to supply up to 2.4A of load current within the very wide range from 2.5V to 42V in the input voltage. This IC has an operation mode that is automatically changed to PFM operation during low load, which can achieve super-high efficiency with a very low quiescent current 20 µA. It is possible to provide stable output voltage from an automotive cold cranking and load dump, up to 42V, conditions within 1 ms transition time. As a result, this IC is suitable for power supply solutions of automotive and Industrial applications. This IC has the SYNC function, which is capable of selecting the SYNC_IN that is able to inputs an external clock signal or the SYNC_OUT that is able to output an internal clock. When selecting the SYNC_IN and an external clock signal in the range from 200 kHz to 400 kHz is inputted, the FETs perform the switching operation with synchronizing signal from an external clock. When selecting the SYNC_IN and an external clock signal is not inputted, the FETs perform the switching operation from an internal clock. When selecting the SYNC_OUT, this IC provides a clock signal generated inside to external devices. The internal clock signal in the range from 200 kHz to 2.1 MHz can be set by an external resistor. Since external voltage setting resistors and phase compensation capacitors are not required with this IC, it can reduce the number of parts and a part mounting area. This IC has five protection functions, input under voltage lockout (input UVLO), output under voltage protection (output UVP), output over voltage protection (output OVP), output over current protection (output OCP), and thermal shutdown (TSD). Moreover, this IC has the power good (PG) function that indicates the state of the output voltage (VOUT pin). When the output voltage reaches the PG voltage, the PG signal is outputted. Also, the power-on reset time for the PG signal is selectable. The VOUT output voltage, SYNC function, VOUT UVP threshold, VOUT OVP threshold, power-on reset time of this product are selectable from the product lineup (refer to the "4. Product Lineup"). Publication Number S6BP202A_DS405-00027 Revision 0.2 Issue Date September 4, 2015 This document states the current technical specifications regarding the Cypress product(s) described herein. The Preliminary status of this document indicates that product qualification has been completed, and that initial production has begun. Due to the phases of the manufacturing process that require maintaining efficiency and quality, this document may be revised by subsequent versions or modifications due to changes in technical specifications. CONFIDENTIAL v1.2 D a t a S h e e t 2. ( P r e l i m i n a r y ) Features Wide input voltage range : 2.5V to 42V Selectable output voltage (factory settable): 5.000V/5.050V/5.075V/5.100V/5.125V/5.150V/5.200V Wide operating frequency range : 200 kHz to 2.1 MHz External synchronized clock range : 200 kHz to 400 kHz SYNC function (factory settable) − SYNC_IN : External clock input (Not inputting an external clock, this IC operates by an internal clock) − SYNC_OUT : Internal clock output Super-high efficiency by PFM operation (When setting MODE pin to a low level) Automatic PWM/PFM switching operation and fixed PWM operation are selectable by MODE pin Built-in switching FET Synchronous current mode architecture Shutdown current : Lower than 1 µA Quiescent current : 20 µA Power Good Monitor − Output voltage monitoring by window comparator − Power-on reset time (factory settable) : 7 µs, 14 ms Soft start time without load dependence : 0.9 ms (When switching frequency = 2.1 MHz) Enhanced protection functions − Input under voltage lockout − Output under voltage protection (factory settable) : 92.0%, 95.5% − Output over voltage protection (factory settable) : 108.0%, 104.5% − Output over current protection − Thermal shutdown Small TSSOP16 package (exposed PAD) : 5 mm × 6.4 mm 3. Applications 4 CONFIDENTIAL Instrument cluster Advanced driver assistance systems (ADAS) Gateway module Automotive applications Industrial applications S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) Table of Contents 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. Description ..................................................................................................................................... 3 Features ......................................................................................................................................... 4 Applications .................................................................................................................................... 4 Product Lineup ............................................................................................................................... 6 Pin Assignment............................................................................................................................... 8 Pin Descriptions.............................................................................................................................. 8 Block Diagram ................................................................................................................................ 9 Absolute Maximum Ratings .......................................................................................................... 10 Recommended Operating Conditions........................................................................................... 11 Electrical Characteristics .............................................................................................................. 12 Functional Description .................................................................................................................. 14 11.1 Block Description............................................................................................................... 14 11.2 Protection Function Table ................................................................................................. 15 Application Circuit Example and Parts list .................................................................................... 16 Application Note ........................................................................................................................... 17 13.1 Setting the Operation Conditions ...................................................................................... 17 Usage Precaution ......................................................................................................................... 20 RoHS Compliance Information ..................................................................................................... 20 Ordering Information..................................................................................................................... 20 Package Dimensions .................................................................................................................... 21 Major Changes ............................................................................................................................. 22 Figures Figure 5-1 Pin Assignment ......................................................................................................................... 8 Figure 7-1 Block Diagram ........................................................................................................................... 9 Figure 12-1 Application Circuit Example ................................................................................................... 16 Figure 13-1 FOSC vs RRT Measured Characteristic .................................................................................... 18 Figure 13-2 IVOUT vs VVIN .......................................................................................................................... 19 Tables Table 6-1 Pin Descriptions .......................................................................................................................... 8 Table 11-1 Protection Function Table ....................................................................................................... 15 Table 12-1 Parts List................................................................................................................................. 16 Table 13-1 Operation State of DC/DC Convertor When Selecting SYNC_IN ........................................... 17 Table 13-2 Operation State of DC/DC Convertor When Selecting SYNC_OUT ....................................... 17 September 4, 2015, S6BP201A_DS405-00027-0v02-E CONFIDENTIAL 5 v1.2 D a t a S h e e t 4. ( P r e l i m i n a r y ) Product Lineup The VOUT output voltage, SYNC function, VOUT UVP threshold, VOUT OVP threshold, power-on reset time of this product are set at the factory shipment. To order a product, select an item from the product lineup blow. Part Number(*1) Order Code VOUT Output Voltage [V] Function S6BP202A1BST2B000 1B SYNC_IN S6BP202A1CST2B000 1C SYNC_OUT S6BP202A1DST2B000 1D SYNC_IN S6BP202A1EST2B000 1E 5.000 SYNC_OUT S6BP202A1FST2B000 1F S6BP202A1GST2B000 1G SYNC_OUT S6BP202A1HST2B000 1H SYNC_IN SYNC_IN S6BP202A1JST2B000 1J SYNC_OUT S6BP202A2BST2B000 2B SYNC_IN S6BP202A2CST2B000 2C SYNC_OUT S6BP202A2DST2B000 2D SYNC_IN S6BP202A2EST2B000 2E 5.050 SYNC_OUT S6BP202A2FST2B000 2F S6BP202A2GST2B000 2G SYNC_OUT S6BP202A2HST2B000 2H SYNC_IN SYNC_IN S6BP202A2JST2B000 2J SYNC_OUT S6BP202A3BST2B000 3B SYNC_IN S6BP202A3CST2B000 3C SYNC_OUT S6BP202A3DST2B000 3D SYNC_IN S6BP202A3EST2B000 3E 5.075 SYNC_OUT S6BP202A3FST2B000 3F SYNC_IN S6BP202A3GST2B000 3G SYNC_OUT S6BP202A3HST2B000 3H SYNC_IN S6BP202A3JST2B000 3J SYNC_OUT S6BP202A4BST2B000 4B SYNC_IN S6BP202A4CST2B000 4C SYNC_OUT S6BP202A4DST2B000 4D SYNC_IN S6BP202A4EST2B000 4E S6BP202A4FST2B000 4F S6BP202A4GST2B000 4G SYNC_OUT S6BP202A4HST2B000 4H SYNC_IN 5.100 SYNC_OUT SYNC_IN S6BP202A4JST2B000 4J SYNC_OUT S6BP202A5BST2B000 5B SYNC_IN S6BP202A5CST2B000 5C SYNC_OUT S6BP202A5DST2B000 5D SYNC_IN S6BP202A5EST2B000 5E S6BP202A5FST2B000 5F S6BP202A5GST2B000 5G SYNC_OUT S6BP202A5HST2B000 5H SYNC_IN S6BP202A5JST2B000 5J SYNC_OUT 5.125 VOUT UVP Threshold VOUT OVP Threshold [%] [%] SYNC SYNC_OUT SYNC_IN Falling Rising Rising Falling (Typ) (Typ) (Typ) (Typ) 92.0 93.0 108.0 107.0 Power-on Reset Time[s] 7.0µ 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 14.0m 7.0µ 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 14.0m 7.0µ 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 95.5 96.5 104.5 103.5 14.0m 7.0µ 14.0m 7.0µ 14.0m *1: Commercial sample (CS) 6 CONFIDENTIAL S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2 D a t a S h e e t Part Number(*1) Order Code VOUT Output Voltage [V] ( P r e l i m i n a r y ) Function S6BP202A6BST2B000 6B SYNC_IN 6C SYNC_OUT S6BP202A6DST2B000 6D SYNC_IN S6BP202A6EST2B000 6E S6BP202A6FST2B000 6F S6BP202A6GST2B000 6G SYNC_OUT S6BP202A6HST2B000 6H SYNC_IN S6BP202A6JST2B000 6J SYNC_OUT SYNC_OUT SYNC_IN S6BP202A7BST2B000 7B SYNC_IN S6BP202A7CST2B000 7C SYNC_OUT S6BP202A7DST2B000 7D SYNC_IN S6BP202A7EST2B000 7E S6BP202A7FST2B000 7F S6BP202A7GST2B000 7G SYNC_OUT S6BP202A7HST2B000 7H SYNC_IN S6BP202A7JST2B000 7J SYNC_OUT 5.200 VOUT OVP Threshold [%] [%] SYNC S6BP202A6CST2B000 5.150 VOUT UVP Threshold SYNC_OUT SYNC_IN Falling Rising Rising Falling (Typ) (Typ) (Typ) (Typ) 92.0 93.0 108.0 107.0 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 Power-on Reset Time[s] 7.0µ 14.0m 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 95.5 96.5 104.5 103.5 92.0 93.0 108.0 107.0 7.0µ 14.0m 95.5 96.5 104.5 103.5 *1: Commercial sample (CS) September 4, 2015, S6BP201A_DS405-00027-0v02-E CONFIDENTIAL 7 v1.2 D a t a S h e e t 5. ( P r e l i m i n a r y ) Pin Assignment Figure 5-1 Pin Assignment (Top view) PGND1 :1 16: PGND2 LX1 :2 15: LX2 PVIN :3 14: VOUT BST :4 13: FB EP: GND VIN :5 12: RT ENA :6 11: SYNC MODE :7 10: PG VCC :8 9: GND (SEC016) 6. Pin Descriptions Table 6-1 Pin Descriptions Pin No. Pin Name I/O 1 PGND1 − GND pin for built-in switching FET Description 2 LX1 O Inductor connection pin 3 PVIN I Power supply pin for PWM controller and switching FETs 4 BST I BST(Boost) capacitor connection pin 5 VIN I Power supply pin 6 ENA I DC/DC converter enable pin 7 MODE I PWM/PFM operation control pin 8 VCC O 9 GND − 10 PG O VCC capacitor connection pin LDO output pin of Internal reference voltage GND pin Open drain output pin for power good When being used, connect PG pin to VCC pin or VOUT pin. When not being used, leave PG pin open. External clock input pin / Internal clock output pin 11 SYNC I/O For the SYNC pin setting, refer to "13.1 Setting the Operation Conditions" 8 CONFIDENTIAL Timing resistor connection pin for internal clock (switching frequency) 12 RT O 13 FB I Output voltage feedback pin 14 VOUT O DC/DC converter output pin 15 LX2 O Inductor connection output pin. 16 PGND2 − GND pin for built-in switching FET EP GND − GND pin For the resistance, refer to "13.1 Setting the Operation Conditions" S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2 D a t a S h e e t 7. ( P r e l i m i n a r y ) Block Diagram Figure 7-1 Block Diagram September 4, 2015, S6BP201A_DS405-00027-0v02-E CONFIDENTIAL 9 v1.2 D a t a S h e e t 8. ( P r e l i m i n a r y ) Absolute Maximum Ratings Parameter Power supply voltage (*1) Terminal voltage(*1) Symbol PG output current Rating Min Max Unit VVIN VIN pin −0.3 +48.0 V VPVIN PVIN pin −0.3 +48.0 V VVCC VCC pin −0.3 +6.9 V VBST BST pin −0.3 +48.0 V VLX1 LX1 pin −2.0 +48.0 V VLX2 LX2 pin −2.0 +6.9 V VFB FB pin −0.3 VVCC V VRT RT pin −0.3 VVCC V VMODE MODE pin −0.3 VVCC V VSYNC SYNC pin −0.3 VVCC V VENA ENA pin −0.3 +48.0 V VPG PG pin −0.3 +6.9 V Between BST–LX1 pins −0.3 +6.9 V −0.3 +0.3 V −3 0 mA 0 3324 (*2) mW −55 +150 °C VBST-LX Difference voltage(*1) Condition VGND Between GND–PGND1 pins Between GND–PGND2 pins IPG PG pin Power dissipation (*1) PD Ta ≤ ±25°C Storage temperature TSTG − *1: When PGND1 = PGND2 = GND = 0V *2: When the product is mounted on 76.2 mm × 114.3 mm, four-layer FR-4 board Warning: 1. Semiconductor devices may be permanently damaged by application of stress (including, without limitation, voltage, current or temperature) in excess of absolute maximum ratings. Do not exceed any of these ratings. 10 CONFIDENTIAL S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2 D a t a S h e e t 9. ( P r e l i m i n a r y ) Recommended Operating Conditions Parameter Power supply voltage (*1) Terminal voltage (*1) Symbol VVIN Value Min Typ Max Unit VIN At start-up 5.0 12.0 42.0 V pin After start-up 2.5 12.0 42.0 V VBST BST pin 0.0 − 47.5 V VLX1 LX1 pin −1.0 +12.0 +42.0 V VLX2 LX2 pin −1.0 − +5.5 V VFB FB pin 0.0 − 5.5 V VMODE MODE pin 0.0 − 5.5 V VSYNC SYNC pin 0.0 − 5.5 V VENA ENA pin 0.0 12.0 42.0 V VPG PG pin 0.0 − 5.5 V Between BST−LX1 pins 0.0 − 5.5 V −0.05 0.00 +0.05 V VBST-LX1 Difference voltage(*1) Condition VGND Between GND−PGND1 pins, Between GND−PGND2 pins PG output current IPG BST capacitance CBST PG pin (sink current) Between BST−LX1 pins VCC capacitance CVCC Between VCC−GND pins Timing resistance RRT Operating ambient Temperature Ta Between RT−GND pins When using internal clock − 0 − 1 mA 0.068 0.100 0.470 µF 2.2 4.7 10.0 µF 22 − 270 kΩ −40 +25 +125 °C *1: When PGND1 = PGND2 = GND = 0V Warning: 1. The recommended operating conditions are required in order to ensure the normal operation of the semiconductor device. All of the device's electrical characteristics are warranted when the device is operated under these conditions. 2. Any use of semiconductor devices will be under their recommended operating condition. 3. Operation under any conditions other than these conditions may adversely affect reliability of device and could result in device failure. 4. No warranty is made with respect to any use, operating conditions or combinations not represented on this data sheet. If you are considering application under any conditions other than listed herein, please contact sales representatives beforehand. September 4, 2015, S6BP201A_DS405-00027-0v02-E CONFIDENTIAL 11 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) 10. Electrical Characteristics VIN=PVIN=12V, ENA=5V (Unless specified otherwise, these are the electrical characteristics under the recommended operating environment.) Parameter VOUT output voltage VVOUT Value Unit Min Typ Max IVOUT = 0A, When VVOUT = 5.000 (*1) 4.925 5.000 5.075 V IVOUT = 0A, When VVOUT = 5.050 (*1) 4.975 5.050 5.125 V IVOUT = 0A, When VVOUT = 5.075 (*1) 4.999 5.075 5.151 V IVOUT = 0A, When VVOUT = 5.100 (*1) 5.024 5.100 5.176 V IVOUT = 0A, When VVOUT = 5.125 (*1) 5.048 5.125 5.201 V IVOUT = 0A, When VVOUT = 5.150 (*1) 5.073 5.150 5.227 V IVOUT = 0A, When VVOUT = 5.200 (*1) 5.122 5.200 5.278 V EN = 0V, Ta = +25°C 3.84 4.80 5.76 MΩ RHSIDEFET1 LX1 = −30 mA (Between PVIN−LX1) − 150 − mΩ converter Switching FET RLSIDEFET1 LX1 = 30 mA (Between LX1−PGND1) − 150 − mΩ Block on-resistance RHSIDEFET2 LX2 = −30 mA (Between VOUT−LX2) − 150 − mΩ RLSIDEFET2 LX2 = 30 mA (Between LX2−PGND2) − 150 − mΩ ILEAK − − − 5 µA 0.855 0.9 0.945 ms PVIN ≥ 7.5V, Ta = 25 °C − − 2.4(*2) A PVIN = 4.5V, Ta = 25 °C − − 1.0(*2) A 2.4(*2) − − A switching FET leakage current RFB Condition DC/DC Buck-boost FB input resistance Symbol Soft-start time TSS RRT = 22 kΩ VOUT output current IVOUT Current limit ILIMT PVIN = 12V, L = 2.2 µH VVCC 5V LDO block VCC output voltage VIN = 12V 4.9 5.0 5.1 V VIN UVLO VIN UVLO falling threshold VUVLOVINHL VIN input voltage when falling 2.30 2.40 2.50 V block VIN UVLO rising threshold VUVLOVINLH VIN input voltage when rising 4.55 4.75 4.95 V VCC UVLO VCC UVLO falling threshold VUVLOVCCHL VCC input voltage when falling 2.30 2.40 2.50 V block VCC UVLO rising threshold VUVLOVCCLH VCC input voltage when rising 4.55 4.75 4.95 V VENA Enable voltage range 1.10 − VVIN V VDSB Disable voltage range 0.0 − 0.2 V IENA VENA = 12V − 1 3 µA 0.0 − 0.4 V 2.0 − VVOUT V ENA pin Enable condition ENA input current MODE pin MODE input voltage VMODE_H MODE Input current OSC block Switching frequency (SYNC output frequency) (SYNC_IN/ SYNC_OUT) IMODE FOSC Automatic PWM/PFM switching operation Fixed PWM operation MODE = 5.0V − 5 10 µA RRT = 22kΩ 2.0 2.1 2.2 MHz RRT = 270kΩ 180 200 220 kHz VSYNC_L When selecting SYNC_IN (*1) 0.0 − 0.4 V VSYNC_H When selecting SYNC_IN (*1) 2.0 − VVOUT V SYNC input frequency VSYNC_L When selecting SYNC_IN (*1) 200 − 400 kHz SYNC input duty ratio VSYNC_H When selecting SYNC_IN (*1) +20 +50 +80 % SYNC output frequency FOUTPUT When selecting SYNC_OUT (*1) − FOSC − Hz SYNC output duty ratio FOUTDUTY When selecting SYNC_OUT (*1) +40 +50 +60 % − 5 10 µA SYNC input threshold SYNC block VMODE_L SYNC leakage current ILKSYNC VSYNC = 5.0V, When selecting SYNC_IN (*1) *1: Refer to "4. Product Lineup" *2: The specification is guaranteed by design, not tested in production. 12 CONFIDENTIAL S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) VIN=PVIN=12V, ENA=5V (Unless specified otherwise, these are the electrical characteristics under the recommended operating environment.) Parameter VOUT UVP falling threshold PGUVPHL VOUT UVP rising threshold PGUVPLH VOUT OVP rising threshold PG block (UVP, OVP) Symbol VOUT OVP falling threshold PGOVPLH PGOVPHL Falling threshold for VOUT output 90.5 92.0 93.5 % voltage setting (*1) 94.0 95.5 97.0 % Rising threshold for VOUT output 91.5 93.0 94.5 % voltage setting (*1) 95.0 96.5 98.0 % Rising threshold for VOUT output 106.5 108.0 109.5 % voltage setting (*1) 103.0 104.5 106.0 % Falling threshold for VOUT output 105.5 107.0 108.5 % voltage setting (*1) 102.0 103.5 105.0 % 0 − 1 µA 0.025 0.05 0.15 V − 7(*2) 12(*2) µs − 7(*2) 12(*2) µs 9.1 14.0 18.9 ms − °C Low level output voltage VOLPG IPGSINK = 1 mA TPPG At power shutdown TRPG At power good Thermal Shutdown temperature block (TSD) Shutdown current Supply current Max VPWRGD = 5.0V, VENA = 0V Power-on reset time (*1) Unit Typ ILKPG at abnormal detection Value Min Leak current Delay time shutdown Condition TTSDH − − 165 (*2) TTSDL Hysteresis − 10(*2) − °C IVINSDN VIN input current, VENA = 0V − 1 5 µA − 20 40 µA VIN input current, VENA = 12V, Quiescent current IVINQ IVOUT = 0A, MODE/SYNC/PG Pins = OPEN *1: Refer to "4. Product Lineup" *2: The specification is guaranteed by design, not tested in production. September 4, 2015, S6BP201A_DS405-00027-0v02-E CONFIDENTIAL 13 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) 11. Functional Description 11.1 Block Description Input Under Voltage Lockout (Input UVLO) The input UVLO is the function that prevents a malfunction of this IC from the following status, and protects poststage devices. − Transitional state at start-up − Momentary drop of power supply voltage To prevent such a malfunction, this protection monitors the VIN input voltage and VCC voltage. When either VIN or VCC voltage falls to the UVLO falling threshold, 2.4V (Typ), or lower, the IC stops the VOUT voltage output and becomes UVLO status. When both VIN and VCC voltages reach the UVLO rising threshold, 4.75V (Typ), or higher, the IC is released from the UVLO state and returns to the normal operation. Output Under Voltage Protection (Output UVP) The output UVP is the function that monitors the voltage drop of the VOUT pin and notifies by the PG pin. When the output voltage falls to the UVP falling threshold (PGUVPHL) for the output voltage setting or lower, the PG voltage is fixed to the low level. The IC becomes the UVP status, but the switching operation is maintained under the UVP status. When the output voltage once again reaches the UVP rising threshold (PGUVPLH) for the output voltage setting or higher, the IC is released from the UVP state and the PG voltage is fixed to the high level. Output Over Voltage Protection (Output OVP) The output OVP is the function that monitors the voltage rise of the VOUT pin and stops the switching operations, which protects poststage devices from overvoltage. Also, the VOUT state is notified by the PG pin. When the output voltage rises to the OVP falling threshold (PGOVPLH) for the output voltage setting or higher, the PG voltage is fixed to the low level. The IC becomes the OVP status, and the switching operations of the high-Side FETs are stopped. When the output voltage once again falls to the OVP falling threshold (PGOVPHL) for the output voltage setting or lower, the IC is released from the OVP state and resumes the switching operations. The PG voltage is fixed to the high level again. Output Over Current Protection (Output OCP) The output OCP is the function that limits the excessive current load and protects poststage devices. Thermal Shutdown (TSD) The TSD is the function that protects the IC from heat-destruction. When the junction temperature reaches +165°C (Typ), the high-side and low-side switching FET are turned off and the IC becomes the TSD status. When the junction temperature once again falls to +155°C (Typ) or lower, the IC is released from the TSD state and restarts the power supply. 14 CONFIDENTIAL S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) 11.2 Protection Function Table The following table shows the state of each pin when each protection function operates. Table 11-1 Protection Function Table Function ENA Pin PG Pin Setting Output DC/DC Converter Remarks Operation It is recommended to connect PG pin to VCC pin or VOUT pin via a pull-up Shutdown operation L Hi-Z(*1) Shutdown resistor. When setting ENA pin to a low level, Both VCC pin and VOUT pin voltages drop to 0V. Therefore, PG pin outputs 0V. Nominal operation Input under voltage protection (Input UVLO) Output under voltage protection (Output UVP) Output over voltage protection (Output OVP) Output over current protection (Output OCP) Thermal shutdown (TSD) H Hi-Z(*1) Switching − After releasing UVLO state, this IC is H L Shutdown H L Switching − H L Shutdown − H L Switching OCP operates to drop the output voltage. H L Shutdown automatically reset with soft start. After releasing TSD state, this IC is automatically reset with soft start. *1: PG pin is formed as an open drain structure. The internal MOSFET is in the OFF state. September 4, 2015, S6BP201A_DS405-00027-0v02-E CONFIDENTIAL 15 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) 12. Application Circuit Example and Parts list Figure 12-1 Application Circuit Example VIN CVIN 0.1μF VCC CVCC VOUT 4.7μF VIN 5 3 PVIN VCC 8 4 BST FB 13 MODE 7 15 LX2 SYNC SYNC 11 14 VOUT ENA ENA 6 RT 12 CPVIN 10μF CBST 0.1μF 2 LX1 MODE RRT 22kΩ VIN LLX 2.2μH VOUT VOUT CVOUT_2 22μF CVOUT_1 22μF 1 PGND1 GND 9 16 PGND2 GND EP 10 PG RPG 1MΩ VCC or VOUT PG FOSC = 2.1 MHz When selecting “VOUT output voltage = 5.0V” Table 12-1 Parts List Symbol CVIN, CBST Item Value Part Number Vendor Ceramic capacitor 0.1 μF CGA2B3X7R1H104K050BB TDK Package Size (W×L×H[mm]) Remarks 1.0×0.5×0.5 X7R, Rated voltage: 50 Vdc CPVIN Ceramic capacitor 10 μF CGA9N3X7R1H106K230KB TDK 5.7×5.0×2.3 X7R, Rated voltage: 50 Vdc CVCC Ceramic capacitor 4.7 μF CGA4J3X7R1C475K125AB TDK 2.0×1.25×1.25 X7R, Rated voltage: 16 Vdc Ceramic capacitor 22 μF CGA6P1X7R1C226M250AC TDK 3.2×2.5×2.5 X7R, Rated voltage: 16 Vdc DCR: 14.6 mΩ, IDC_MAX: 5.5A CVOUT_1, CVOUT_2 LLX Inductor 2.2 μH CLF7045T-2R2N-D TDK 7.2×6.9×4.5 RRT Resistor 22 kΩ RK73H1JTTD2202F KOA 0.8×1.6×0.45 − RPG Resistor 1 MΩ RK73H1JTTD1004F KOA 0.8×1.6×0.45 − TDK: TDK Corporation KOA: KOA Corporation 16 CONFIDENTIAL S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) 13. Application Note 13.1 Setting the Operation Conditions Operation State of DC/DC Convertor When Selecting SYNC_IN The operation stage of DC/CD converter is set by both MODE pin and SYNC pin. Table 13-1 Operation State of DC/DC Convertor When Selecting SYNC_IN MODE SYNC Pin Pin (Signal Input) L (*3) External clock input (*5) L (*3) H (*4) Operation State of DC/DC Convertor Automatic PWM/PFM switching operation from an internal clock Fixed PWM operation with synchronizing signal from an external clock (*2) H (*4) Prohibition of use (*1) L (*3) Fixed PWM operation from an internal clock External clock input (*5) H (*4) Fixed PWM operation with synchronizing signal from an external clock (*2) Prohibition of use (*1) *1: When selecting SYNC_IN and setting SYNC pin to a low level, the quiescent current (IVINQ) is increased. *2: Set the timing resistance (RRT) to 330 kΩ. *3: Apply the GND1 or GND2 voltage. *4: Apply the VOUT voltage. *5: Apply the VOUT voltage at a high level. Apply the GND1 or GND2 voltage at a low level Operation State of DC/DC Convertor When Selecting SYNC_OUT When selecting SYNC_OUT, the phase of SYNC clock output is shifted from an internal clock. Table 13-2 Operation State of DC/DC Convertor When Selecting SYNC_OUT MODE Pin L (*1) H (*2) SYNC Pin Internal clock output Operation State of DC/DC Convertor Fixed PWM operation from an internal clock *1: Apply the GND1 or GND2 voltage. *2: Apply the VOUT voltage. September 4, 2015, S6BP201A_DS405-00027-0v02-E CONFIDENTIAL 17 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) Setting of Switching Frequency (Internal Clock) The switching frequency (internal clock) can be set by RT resistor, which value is the timing resistance (RRT), connected to RT pin. Set the timing resistance in a range within the following graph Figure 13-1 FOSC vs RRT Measured Characteristic FOSC vs RRT Measured Characteristic 2.5 FOSC [MHz] 2.0 1.5 1.0 0.5 0.0 0 100 200 RRT [kΩ] 300 400 S6BP202AGraph001 The reference value can be calculated by the following formula. FOSC [Hz] ≈ FOSC RRT 1 R RT × 21.7 × 10−12 : Switching frequency [Hz] : Timing resistance [Ω] Setting of Soft-start Time The Soft-start time is determined by the timing resistance (RRT), the value of the resistor connected to RT pin. TSS [s] = 1 × 2 × 1024 FOSC TSS FOSC 18 CONFIDENTIAL : Soft-start time [s] : Switching frequency [Hz] S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) Consideration of VOUT Maximum Output Current Make sure the VOUT maximum output current in a range within the following graph. Figure 13-2 IVOUT vs VVIN IVOUT vs VVIN 3.0 Ta=+25oC, FOSC=2.1MHz Ta=+125oC, FOSC=2.1MHz 2.5 IVOUT [A] 2.0 1.5 1.0 0.5 0.0 0 1 2 3 4 5 6 7 VVIN [V] 8 9 10 11 12 S6BP202AGraph002 September 4, 2015, S6BP201A_DS405-00027-0v02-E CONFIDENTIAL 19 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) 14. Usage Precaution Printed circuit board ground lines should be set up with consideration for common impedance. Take appropriate measures against static electricity. − Containers for semiconductor materials should have anti−static protection or be made of conductive material. − After mounting, printed circuit boards should be stored and shipped in conductive bags or containers. − Work platforms, tools, and instruments should be properly grounded. − Working personnel should be grounded with resistance of 250 kΩ to 1 MΩ in serial body and ground. Do not apply negative voltages. The use of negative voltages below −0.3 V may make the parasitic transistor activated to the LSI, and can cause malfunctions. 15. RoHS Compliance Information This product has observed the standard of lead, cadmium, mercury, Hexavalent chromium, polybrominated biphenyls (PBB), and polybrominated diphenyl ethers (PBDE). 16. Ordering Information Order Code Part Number (*1) 1F S6BP202A1FST2B000 1G S6BP202A1GST2B000 4F S6BP202A4FST2B000 7F S6BP202A7FST2B000 ES S6BP202AESET21000 (*2) Package Plastic TSSOP16 (0.65 mm pitch), 16-pin (SEC016) *1: Please contact our sales division for the part numbers (refer to "4. Product Lineup") not mentioned in this table. *2: This part number is used for the engineering sample (ES). Please contact our sales division for the order code (refer to "4. Product Lineup"). 20 CONFIDENTIAL S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) 17. Package Dimensions September 4, 2015, S6BP201A_DS405-00027-0v02-E CONFIDENTIAL 21 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) 18. Major Changes Page Section Change Results Preliminary 0.1 − − Initial release Preliminary 0.2 1 13 Cover page 10. Electrical Characteristics 22 CONFIDENTIAL The sentences of the "Notice to Readers" were changed from "the contents of Full Production" to "the contents of Preliminary". "(TSD)" was added in the table of "10. Electrical Characteristics". S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2 D a t a S h e e t September 4, 2015, S6BP201A_DS405-00027-0v02-E CONFIDENTIAL ( P r e l i m i n a r y ) 23 v1.2 D a t a S h e e t ( P r e l i m i n a r y ) Colophon The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated (1) for any use that includes fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system), or (2) for any use where chance of failure is intolerable (i.e., submersible repeater and artificial satellite). Please note that Cypress will not be liable to you and/or any third party for any claims or damages arising in connection with above-mentioned uses of the products. Any semiconductor devices have an inherent chance of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Law of Japan, the US Export Administration Regulations or the applicable laws of any other country, the prior authorization by the respective government entity will be required for export of those products. Trademarks and Notice The contents of this document are subject to change without notice. This document may contain information on a Cypress product under development by Cypress. Cypress reserves the right to change or discontinue work on any product without notice. The information in this document is provided as is without warranty or guarantee of any kind as to its accuracy, completeness, operability, fitness for particular purpose, merchantability, non-infringement of third-party rights, or any other warranty, express, implied, or statutory. Cypress assumes no liability for any damages of any kind arising out of the use of the information in this document. ® Copyright © 2012-2015 Cypress Semiconductor Corp. All rights reserved. Cypress, the Cypress logo, Spansion , the ® ® TM TM TM TM Spansion logo, MirrorBit , MirrorBit Eclipse , ORNAND , Easy DesignSim , Traveo and combinations thereof, are trademarks and registered trademarks of Cypress Semiconductor Corp. in the United States and other countries. Other names used are for informational purposes only and may be trademarks of their respective owners. 24 CONFIDENTIAL S6BP202A_DS405-00027-0v02-E, September 4, 2015 v1.2