ISL99125BDRZ-T

DATASHEET ISL99125B, ISL99135B FN8848 Rev 4.00 January 24, 2017 25A/35A DrMOS Module with Diode Emulation and PS4 Features The ISL99125B and ISL99135B are high-performance DrMOS power modules designed for high-frequency power conversion. By combining a high-performance FET driver and MOSFETs in an advanced package, high-density DC/DC converters may be created. Combined with an Intersil PWM controller, a complete voltage regulator solution can be created with reduced external components and minimum overall PCB real estate. • VIN range: 0V to 25V • Current capability: 25A (ISL99125B), 35A (ISL99135B) • Supports three-state 5.0V PWM input • 0.5Ω ON-resistance and 4A sink current capability The ISL99125B and ISL99135B feature a three-state PWM input that, working together with Intersil’s 5V PWM controllers (such as ISL6398, ISL9585x, ISL637x, ISL633x, ISL636x, and ISL68201), will provide a robust solution in the event of abnormal operating conditions. • Diode emulation for enhanced light-load efficiency The ISL99125B, ISL99135B support high-efficiency operations not only at heavy loads, but also at light loads via its diode emulation capability. Diode emulation can be disabled for those applications where variable frequency operation is not desired at light loads. • Integrated high-side gate-to-source resistor to prevent self turn-on due to high input bus dv/dt • Ultra low shutdown supply current (3µA) for PS4 operation • Low three-state hold-off time • Adaptive shoot-through protection • VCC undervoltage lockout • Switching frequencies up to 2MHz • Pb-free (RoHS compliant) ISL99125B, ISL99135B also feature very low shutdown supply current (3µA) to ensure the low power consumption, especially designed for IMVP8 PS4 shutdown operation. • 3.5x5 QFN 24 Ld package Applications Related Literature • High-efficiency and high-density VRM and VRD • Core, graphic, and memory regulators for microprocessors • For a full list of related documents, visit our website - ISL99125B and ISL99135B product pages • High-density VR for server, networking, and cloud computing • POL DC/DC converters and video gaming consoles +12V +5V VCC PWM INTERSIL PWM CONTROLLER FCCM BOOT PHASE VIN PWM FCCM SHOOTTHROUGH PROTECTION SW LOUT VOUT VCC COUT ISL991X5 GND GND GND FIGURE 1. SIMPLIFIED APPLICATION BLOCK DIAGRAM FN8848 Rev 4.00 January 24, 2017 Page 1 of 13 ISL99125B, ISL99135B Functional Block Diagram BOOT PHASE GH VCC VIN POR PWM 20k SHOOTTHROUGH PROTECTION PWM LOGIC SW VCC ZERO DETECT GL GH GND SW GL FCCM GND FIGURE 2. FUNCTIONAL BLOCK DIAGRAM Ordering Information PART NUMBER (Notes 1, 2, 3) PART MARKING TEMP RANGE (°C) CURRENT RATING (A) PWM INPUT (V) TAPE AND REEL (UNITS) PACKAGE (RoHS COMPLIANT) PKG. DWG. # ISL99125BDRZ-T 125BDRZ -40 to +85 25 5.0 3k 24 Ld Exposed Pad 3.5x5 QFN L24.3.5x5W ISL99135BDRZ-T 135BDRZ -40 to +85 35 5.0 3k 24 Ld Exposed Pad 3.5x5 QFN L24.3.5x5W ISL68201-99125DEMO1Z 3.3V at 16A design with ISL99125B and the ISL68201 digital hybrid PWM Controller ISL68201-99135DEMO1Z 1.0V at 20A design with ISL99135B and the ISL68201 digital hybrid PWM Controller NOTES: 1. Refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), see product information pages for ISL99125B, ISL99135B. For more information on MSL, see tech brief TB363. TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS PART # CURRENT RATING PWM THERMAL OCP (A) (V) FLAG FLAG IMON TMON PACKAGE P2P COMPATIBLE USED WITH 5.0V PWM POWER STAGE FAMILY ISL99125B 25 5.0 No No No No 24 Ld 3.5x5 QFN ISL99135B ISL99135B 35 5.0 No No No No 24 Ld 3.5x5 QFN ISL99125B ISL99227B 60 5.0 Yes Yes Yes Yes 32 Ld 5x5 PQFN ISL99226B Analog Controllers: ISL633x, ISL636x, ISL637x, ISL95829, ISL9585x Digital Hybrid Controllers: ISL68201, ISL6388/98 Full Digital Controller: ZL8802 Phase Doublers: ISL6617, ISL6617A 3.3V PWM POWER STAGE FAMILY ISL99140 40 3.3 Yes No No No 40 Ld 6x6 QFN  N/A ISL99227 60 3.3 Yes Yes Yes Yes 32 Ld 5x5 PQFN ISL99226A FN8848 Rev 4.00 January 24, 2017 Full Digital Controllers: ISL68/69xxx, ZL8802 Digital Hybrid Controllers: ISL68201, ISL6388/98 (3.3V PWM Setting) Page 2 of 13 ISL99125B, ISL99135B Pin Configuration 4 PHASE 5 VCC VIN GND GL GL GND GND 18 17 VIN PAD2 GND PAD1 6 7 8 9 10 11 12 GND GH 19 GND 3 20 GND BOOT 21 GND 2 22 VIN FCCM 23 VIN 1 24 VIN PWM VCC ISL99125B, ISL99135B (24 LD QFN) TOP VIEW 16 SW 15 SW 14 SW 13 SW Pin Descriptions PIN # PIN NAME DESCRIPTION 1 PWM PWM input of gate driver. The PWM signal can enter three distinct states during operation. Connect this pin to the PWM output of the controller. 2 FCCM Input pin to enable or disable diode emulation. When FCCM is LOW, diode emulation is allowed. When FCCM is HIGH, continuous conduction mode is forced. High impedance on the input (floating FCCM) or keeping the pin at mid-level of VCC will shut down the device into ultra-low current mode (5V, 3μA). 3 BOOT Floating bootstrap supply pin for the upper gate drive. Place a high quality low ESR ceramic capacitor (~0.1μF to 0.22μF/X7R) in close proximity across the BOOT and PHASE pins. 4 GH 5 PHASE Return of bootstrap capacitor. Internally connected to SW node. External connection is not needed. 6, 7, 8, 22, PAD2 VIN Input of power stage. Place a couple of high quality, low ESR ceramic capacitors (10μF or higher, X5R or X7R) in close proximity across the VIN and GND planes. 9, 10, 11, 12, 17, 18, 21, PAD1 GND Power stage and logic bias supply return. Connect directly to system ground plane. 13, 14, 15, 16 SW Switching junction node between low-side and high-side MOSFETs. Connect directly to output inductor. 19, 20 GL Low-side gate drive output for monitoring/testing. No circuit connection needed. 23, 24 VCC +5V driver bias supply. Place a high quality, low ESR ceramic capacitor (~1μF/ X5R~X7R) in close proximity from this pin to system ground plane. FN8848 Rev 4.00 January 24, 2017 High-side gate drive output for monitoring/testing. No circuit connection needed. Page 3 of 13 ISL99125B, ISL99135B Typical Applications Circuits with ISL68201 1.0µF 4.7µF VCC PVCC 7VLDO 4.75 TO 24V VIN 1.0µF 1.0µF 2 I C/ SMBus/ PMBus SALERT ISL99135B VCC SCL SDA PGOOD FCCM PGOOD EN PWM 0.5V TO 5.5V PWM PHASE LG LGIN IOUT ‐ VOUT < 7VLDO 1.7V UG EN VCC BOOT 100 10k NTC VCC 1.54k VCC NTC 4 0.1µF NCP18XH103J03RB BETA = 3380 PROG1-4 CSEN CSRTN GND VSEN RGND FIGURE 3. WIDE RANGE INPUT AND OUTPUT APPLICATIONS 1.0µF 4.7µF VCC PVCC VIN 7VLDO 2 I C/ SMBus/ PMBus SALERT ISL99125B SCL SDA PGOOD FCCM PWM PWM PHASE LG LGIN IOUT ‐ VOUT < 7VLDO 1.7V 0.5V TO 2.5V UG EN VCC BOOT VCC PGOOD EN 4.5 TO 5.5V 1.0µF 1.0µF 100 10k VCC NTC 1.54k VCC NTC 0.1µF 4 PROG1-4 NCP18XH103J03RB BETA = 3380 CSEN CSRTN GND VSEN RGND FIGURE 4. 5V INPUT APPLICATION FN8848 Rev 4.00 January 24, 2017 Page 4 of 13 ISL99125B, ISL99135B Typical Application Circuit with ISL95855 VIN BOOT V+5 VIN +5V +5V ISL99135 B VCC FCCM VIN VCC PWM GT VCORE ISL99135 B FCCM_A VCC FCCM PWM1_A PWM PWM2_B VIN BOOT FCCM_B VIN BOOT ISL99135 B ISL99135 B VCC FCCM VIN BOOT VCC FCCM PWM PWM1_B PWM2_A PWM ISUMP_B °C ISUMN_B ISL99135 B ISEN1_B VCC FCCM ISEN2_B PWM3_A CPU VCORE VIN BOOT PWM COMP_B ISUMP_A VCCSENSE_GT FB_B VSSSENSE_GT RTN_B °C ISUMN_A ISEN3_A IMON_B ISEN2_A NTC_B ISEN1_A °C COMP_A VIN BOOT SA VCORE ISL99135 B ISL95855 V+5 VCC FCCM FCCM_C PWM PWM_C FB_A VCCSENSE_CPU RTN_A VSSSENSE_CPU IMON_A NTC_A °C ISUMP_C ISUMN_C COMP_C VCCSENSE_SA FB_C VSSSENSE_SA RTN_C °C VR_HOT# VR_HOT# VR_READY VR_READY VR_ENABLE VR_ENABLE SDA IMON_C SDA PROG1 ALERT# PROG2 PROG3 PROG4 PROG5 GND ALERT# NTC1 NETWORK IS NOT NEEDED SCLK IF TMS IS USED FOR VR1, GPU SCLK PSYS PSYS FIGURE 5. TYPICAL APPLICATION CIRCUIT WITH ISL95855 FN8848 Rev 4.00 January 24, 2017 Page 5 of 13 ISL99125B, ISL99135B Absolute Maximum Ratings Thermal Information VIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 30V Supply Voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 7V I/O Voltage (VPWM, VFCCM) . . . . . . . . . . . . . . . . . . . . . . -0.3V to VCC + 0.3V BOOT Voltage (VBOOT-GND) . . . . . . . . . . . -0.3V to 33V (DC) or 36V (