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(Rev.1.0  Mar 2020)

Summary of Contents for ISL9122AIIN-EVZ

Page 1: ...s its internal registers for output voltage and operation mode control Features Small compact design I2C interface for programmable VOUT slew rate and various operation modes Forced Bypass Auto PFM Forced PWM Connectors test points and jumpers for easy probing Specifications The boards are designed to operate at the following operating conditions Input voltage rating from 1 8V to 5 5V Programmable...

Page 2: ...rating Characteristics 3 1 2 Setup and Configuration 4 1 3 Evaluation Software Installation and Use 4 2 Board Design 6 2 1 ISL9122AIIN EVZ Evaluation Board 6 2 2 ISL9122AIRN EVZ Evaluation Board 6 2 3 PCB Layout Guidelines 7 2 4 Schematic Diagrams 8 2 5 Bill of Materials 10 2 6 Board Layouts 12 3 Ordering Information 16 4 Revision History 16 ...

Page 3: ...rating Characteristics The VIN range of the boards is 1 8V to 5 5V while the adjustable VOUT range is 1 8V to 5 375V The IOUT range of the boards is 0 to 500mA The operating ambient temperature range is 40 C to 85 C Table 1 Description of Test Points and Jumpers Test Points Description J1 Header for connecting input power J2 Header for connecting external load J4 Header for the EN pin J4 GND disab...

Page 4: ... the datasheet specification limits 9 To determine efficiency measure input and output voltages at the Kelvin sense test points S and S which are part of J1 and J2 headers The bench power supply can be connected to the VIN and GND headers on J1 The electronic load can be connected to the VOUT and GND headers on J2 Measure the input and output currents Calculate the efficiency based on these measur...

Page 5: ...it 17 Selecting the Soft DSCHG enabled button presents a soft discharge resistor on the output pin when the converter is disabled through I2C using the EN_AND bit and VIN is still HIGH By default the Soft DSCHG disabled button is selected 18 Use the DVSRATE drop down list to modify the dynamic voltage scaling rate for voltage ramp up when output voltage is modified using the VSET register 19 Use t...

Page 6: ...022 ISL9122AIIN EVZ ISL9122AIRN EVZ Evaluation Board Manual 2 Board Design 2 1 ISL9122AIIN EVZ Evaluation Board 2 2 ISL9122AIRN EVZ Evaluation Board Figure 5 ISL9122AIIN EVZ Evaluation Board Top Figure 6 ISL9122AIRN EVZ Evaluation Board Top ...

Page 7: ...f it is necessary to use the vias use multiple vias to minimize the effective trace inductance It is strongly advised that the second layer be a clean GND to mitigate problems that arise from long GND traces and subsequent parasitic inductive components Also a clean GND shields the intermediate layers from high power traces on the top layer After placing short input and output loops place an induc...

Page 8: ...S29_MISO 5 P0 2_S2 8_MOSI 7 P0 0_S2 7_SCK 9 P0 3_S2 6_NSS 11 P2 1_PC6 17 P2 0_PC7 19 P1 7_PB0 20 P1 6_PB1 18 AGND 3 AGND1 15 P0 5_SCL 2 P0 4_SDA 4 P1 0_PB7 6 P1 1_PB6 8 P1 2_PB5 10 P1 3_PB4 12 P1 4_PB3 14 P1 5_PB2 16 3 3V 1 5V 13 C4 DNP C6 DNP R5 OPEN J1 VIN 1 2 3 4 5 6 TP6 GND L1 1uH VOUT TP3 LX1 TP1 J4 CON3 1 2 3 C2 10uF 6 3V R4 0 3 C5 DNP TP7 GND U1 ISL9122AII GND A1 LX1 B1 VIN C1 SCL D1 SDA D2...

Page 9: ...1 1 GND 2 LX2 3 VOUT 4 EN 5 SDA 6 SCL 7 VIN 8 EPAD 9 C2 10uF 6 3V TP5 VOUT R1 OPEN TP6 GND R3 1M R6 OPEN J4 EN 1 2 3 LX1 TP1 C6 DNP LX2 TP2 C5 DNP L1 1uH C4 DNP VOUT TP3 J1 VIN 1 2 3 4 5 6 C1 47uF 16V J5 I2C P0 1_S29_MISO 5 P0 2_S2 8_MOSI 7 P0 0_S2 7_SCK 9 P0 3_S2 6_NSS 11 P2 1_PC6 17 P2 0_PC7 19 P1 7_PB0 20 P1 6_PB1 18 AGND 3 AGND1 15 P0 5_SCL 2 P0 4_SDA 4 P1 0_PB7 6 P1 1_PB6 8 P1 2_PB5 10 P1 3_P...

Page 10: ...II 0 100 SR STRAIGHT 68000 236 FCI 1 J5 I2C USB_CONN_20 CONN HDR 1 27MM R A AU 20POS M50 3901042 Harwin Inc 1 L1 1µH FERRITE_0603 FIXED IND 1µH 1 7A 128MΩ SMD DFE18SAN1R0MG0L Murata 4 R1 R2 R5 R6 OPEN R_0402 RES SMD 1 1 10W 0603 OPEN Any 1 R3 1M R_0402 RES SMD 1 1 10W 0603 ANY Any 1 R4 0 3 R_0603 RES SMD 1 1 10W 0603 ANY Any 1 TP1 LX1 TEK131 5031 00 PC PCB Test Point Through Hole Mount 1 72 mm 131...

Page 11: ...K II 0 100 SR STRAIGHT 68000 236 FCI 1 J5 I2C USB_CONN_20 CONN HDR 1 27MM R A AU 20POS M50 3901042 Harwin Inc 1 L1 1µH FERRITE_0603 FIXED IND 1µH 950MA 200MΩ SMD DFE18SAN1R0MG0L Murata 4 R1 R2 R5 R6 OPEN R_0402 RES 1 10W 0402 SMD RoHS OPEN Any 1 R3 1M R_0402 RES SMD 1 1 10W 0603 ANY Any 1 R4 0 3 R_0603 RES SMD 1 1 10W 0603 ANY Any 1 TP1 LX1 TEK131 5031 00 PC PCB Test Point Through Hole Mount 1 72 ...

Page 12: ...UZ0080EU0102 Rev 1 02 Page 12 Apr 1 2022 ISL9122AIIN EVZ ISL9122AIRN EVZ Evaluation Board Manual 2 6 Board Layouts 2 6 1 ISL9122AIIN EVZ Board Layout Figure 9 Top Layer Silk Screen Figure 10 Inner Layer 2 ...

Page 13: ...R12UZ0080EU0102 Rev 1 02 Page 13 Apr 1 2022 ISL9122AIIN EVZ ISL9122AIRN EVZ Evaluation Board Manual Figure 11 Inner Layer 3 Figure 12 Bottom Layer Silk Screen ...

Page 14: ...R12UZ0080EU0102 Rev 1 02 Page 14 Apr 1 2022 ISL9122AIIN EVZ ISL9122AIRN EVZ Evaluation Board Manual 2 6 2 ISL9122AIRN EVZ Board Layout Figure 13 Top Layer Silk Screen Figure 14 Inner Layer 2 ...

Page 15: ...R12UZ0080EU0102 Rev 1 02 Page 15 Apr 1 2022 ISL9122AIIN EVZ ISL9122AIRN EVZ Evaluation Board Manual Figure 15 Inner Layer 3 Figure 16 Bottom Layer Silk Screen ...

Page 16: ... ISL9122AIRN EVZ Evaluation board for ISL9122AIRNZ Revision Date Description 1 02 Apr 1 2022 Updated format to latest template Updated Specification Up to 500mA output current VIN VOUT 2 5V Added Figure 2 Updated section 1 2 and 1 3 Updated section 2 PCB Layout Guidelines Updated schematics Figure 7 and 8 Updated BOMs 1 01 Oct 1 2020 Updated Ordering Information table Updated BOMs 1 00 Aug 18 2020...

Page 17: ...RTY RIGHTS These resources are intended for developers skilled in the art designing with Renesas products You are solely responsible for 1 selecting the appropriate products for your application 2 designing validating and testing your application and 3 ensuring your application meets applicable standards and any other safety security or other requirements These resources are subject to change with...

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