R1810Z025A-E2-F

R1810x Series 600 nA IQ Low Quiescent Current Boost DC/DC Converter for Energy Harvester No.EA-423-231002 OVERVIEW R1810x is a boost DC/DC converter for electrical power storage devices, especially dedicated for 1 cell photovoltaic energy harvester since the start-up voltage is Typ.0.35V. This product can start up with only 9uW, and applicable for charging 1 cell photovoltaic element. A system which is working under low-illuminance environment can be composed with the R1810x. KEY BENEFITS ● Providing a low quiescent current (IQ_VOUT =Typ.600 nA), and high efficiency (66%@ IOUT=5 µA) ● Start up with low input energy, 9 µW (low illuminance) is possible. ● Maximum power point control function is built-in. ● Start-up voltage: Typ. 0.35V Max. 0.50V (0°C ≤ Ta ≤ 65°C), Max. 0.55V (-40°C ≤ Ta ≤ 85°C) ● Input Voltage Range: 0.2 V to 2.1 V (VSET=2.7V) ● Output Voltage Range: 2.3 V to 4.5 V ● Output Voltage Accuracy: ±5.0% ● Low current consumption: Typ.600 nA (Ta = 25°C, at no load) ● Start-up power: 9 µW (VMPSET = 0.5V / VSET = 2.6V) ● Maximum Power Point Control Voltage Setting: from 0.2V to 2.1V , in 50 mV increments ● Input Power Good Function ● Output Power Good Function TYPICAL APPLICATION L = 22 µH, CIN = 22 µF, CCP = 22 nF, CREG = 4.7 µF COUT = 4.7 µF EFFICIENCY CURVE 100 90 80 70 60 50 40 30 20 10 0 VIN=0.5V、VSET=2.6V Efficiency[%] KEY SPECIFICATIONS 1 10 100 Output Current IOUT [uA] 1000 SELECTION GUIDE Product name Package Quantity per Reel R1810Zxxx$-E2-F WLCSP-15-P1 5,000 pcs R1810Lxxx$-E2 DFN2735-14 5,000 pcs xxx: Select the combination Code number of the set output voltage (VSET) and the set maximum power voltage (VMPSET) ex. 001 Refer to the Product-specific Electrical Characteristics for detail information. $: Set output power good low (PGL) (Refer to selection guide.) E PACKAGES WLCSP-15-P1 2.88 x 1.68 x 0.36 (mm) DFN2735-14 3.5 x 2.7 x 0.6 (mm) APPLICATION ● Energy harvesting modules such as 1 cell photovoltaic element /thermoelectric power generation. 1 R1810x No.EA-423-231002 SELECTION GUIDE The set output voltage, the set maximum power point control voltage, and the output power good setting are user-selectable options. Selection Guide Product Name Package Quantity per Reel Pb Free Halogen Free R1810Zxxx$-E2-F WLCSP-15-P1 5,000 pcs Yes Yes DFN2735-14 5,000 pcs Yes Yes R1810Lxxx$-E2 xxx: Select the combination of the set output voltage (VSET) and the set maximum power point control voltage (VMPSET) by the code number. Ex. 001 Output voltage: from 2.3 V to 4.5 V in 0.1 V increments Maximum power point control voltage: from 0.2 V to 2.1 V in 0.05 V increments Refer to the Product-specific Electrical Characteristics for detail information. * Contact our sales representatives for other codes. It is recommended to set as VSET ≥ VMPSET + 1.0 V. $: Set output power good low (PGL) (1) A ; Vset x 80% B ; Vset x 70% C ; Vset x 60% D ; Vset x 50% The accuracy of the OUTPG detection voltage depends on the output set voltage. $ A B C D 2.3 - 2.4 - 2.5 - 2.6 - Output power good low OUTPG detection accuracy Set Output Voltage Vset [V] 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 5.0% 5.0% - 3.8 - 3.9 4 4.1 4.0% 4.0% 4.0% - 4.2 - 4.3 4.4 4.5 4.0% “－“; The OUTPG function cannot be used. please set the OUTPG pin to open. (1) OUTPG outputs "Low" when the output is below the threshold of PGL according to the table above. 2 R1810x No.EA-423-231002 BLOCK DIAGRAM VCP AGND LX VIN AGND AGND AGND GATE CONTROL CP AGND PGND AGN AGN Starting Boost DCDC Converter Main DCDC Converter AGND AGND AGND VOUT LX MPPC REVERSE CURRENT PROTECTION AGND AGND VREF VREF AGN AGND VOUT TEST1 LX VOUTUVLO AGND VOUT VOUT GATE CONTROL AGND AGND TEST2 AGND PGND AGND AGND INPG TEST3 AGND AGND_ VFBSW AGND AGND AGND VOUT VOUT AGND OUTPG VREF VREF AGND AGND AGND AGND AGND AGND AGND AGND 3 R1810x No.EA-423-231002 PIN DESCRIPTIONS Top View Bottom View 3 3 2 2 1 1 A B C D E E D C B A R1810Z (WLCSP-15-P1) Pin Configuration Bottom View Top View 14 8 ∗ 1 7 R1810L (DFN2735-14) Pin Configuration ∗ The tab on the bottom of the package enhances thermal performance and is electrically connected to GND (substrate level). The backside tab should be connected to the ground plane on the board. 4 R1810x No.EA-423-231002 R1810Z 、R1810L Pin Description Symbol Description I/O VIN Power Supply Input Pin. Apply input voltage between VIN pin and GND. Connect the input capacitor between the VIN pin and GND. VOUT Pin No. R1810Z R1810L I C3 5 Output voltage pin of step-up DC / DC converter. Connect the output load between VOUT pin and GND. Connect the output capacitor between VOUT pin and GND. O D1,E1 8 INPG Power good output pin for power input voltage (VIN). "High" level of the output voltage for CMOS output is the output voltage (VOUT) of the step-up DC / DC converter. Outputs "High" when VIN exceeds VMPSET and VOUT exceeds VOUTUVLOR※1. Please left open when not in use. O A1 13 VREG Output pin of step-up DC / DC converter (internal power supply) for startup. Supply voltage to the main DC / DC converter circuit that produces VOUT at startup. Please connect a capacitor between VREG pin and GND for voltage stabilization. O C1 11 The drain of the internal MOSFET. Connect an inductor between VIN pin and LX pin. O D2,D3 6 VCP Output pin of the startup internal step-up charge pump (internal power source). Supply voltage to the start-up DC / DC converter circuit that generates the VREG voltage at startup. Please connect a capacitor between the VCP pin and GND for voltage stabilization. O B1 12 OUTPG Power good output pin for VOUT. "High" level of the output voltage for CMOS output is VOUT. Outputs "High" when VOUT is VOUTPGH※1 or higher, and outputs "Low" when VOUT is VOUTPGL※1 or lower. Please left open when not in use. O A2 14 － C2,B2,A3 9,4,1 LX TEST 1,2,3 Test pins for the IC. Be sure to connect to AGND. AGND Analog ground of the internal circuit. Please connect to the PGND and GND. － B3 2 PGND Power ground of the internal circuit. Please connect to the AGND and GND. － E2,E3 7 No connection. It is recommended to make it open to prevent short circuit with adjacent pins during mounting. － － 3,10 NC ※1：Refer to electrical characteristics. 5 R1810x No.EA-423-231002 ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings (GND = 0 V) Symbol Parameter Rating Unit VIN Input Pin Voltage −0.3 to 2.3 V VLX LX Pin Voltage −0.3 to 6.5 V VOUT Output Pin Voltage −0.3 to 6.5 V VREG Output Voltage of Boost DC to DC Converter for Start-up −0.3 to 6.5 V VCP Output Pin Voltage of Charge Pump Circuit −0.3 to 6.5 V Pin Voltage for Testing −0.3 to 6.5 V VINPG INPG Pin Voltage −0.3 to 6.5 V IINPG INPG Pin Current 10 mA VTEST1 to 3 VOUTPG OUTPG Pin Voltage -0.3 to 6.5 V IOUTPG OUTPG Pin Current 10 mA Refer to the Power Dissipation in the supplementary item PD Power Dissipation Tj Junction Temperature Range −40 to 85 °C Tstg Storage Temperature Range −55 to 125 °C ABSOLUTE MAXIMUM RATINGS Electronic and mechanical stress momentarily exceeded absolute maximum ratings may cause permanent damage and may degrade the lifetime and safety for both device and system using the device in the field. The functional operation at or over these absolute maximum ratings are not assured. RECOMMENDED OPERATING CONDITIONS Recommended Operating Conditions Symbol Parameter Rating Unit VIN Input Voltage(1) 0.35 to 2.1 V Ta Operating Temperature Range −40 to 85 °C RECOMMENDED OPERATING CONDITIONS All of electronic equipment should be designed that the mounted semiconductor devices operate within the recommended operating conditions. The semiconductor devices cannot operate normally over the recommended operating conditions, even if they are used over such conditions by momentary electronic noise or surge. The semiconductor devices may receive serious damage when they continue to operate over the recommended operating conditions. (1) The lower limit of the input voltage depends on the set output voltage. Please refer to Page.22 for details. 6 R1810x No.EA-423-231002 ELECTRICAL CHARACTERISTICS The specifications surrounded by production tested. are guaranteed by design at −40°C ≤ Ta ≤ 85°C, not mass R1810x Electrical Characteristics Symbol (Ta = 25°C) Parameter Conditions Min. Typ. Max. Unit 3000 nA VOUT Pin Quiescent Current VIN = 0.5V, VOUT = 4.5 V, at no switching 600 IQ_VIN VIN Pin Quiescent Current VIN = 0.5 V, VOUT = 4.5 V, at no switching 400 VOUT Output Pin Voltage VIN > VMP VMP Accuracy of Maximum Power Point Control Voltage IQ_VOUT VOUTPGH VOUTPGL OUTPG “High” Threshold Voltage OUTPG “Low” Threshold Voltage VINPGH INPG “High” Threshold Voltage VINPGL INPG “Low” Threshold Voltage VSET VSET ×0.95 ×1.05 VOUT = VSET、VMPSET ≥0.5V -5 5 % VOUT = VSET、VMPSET