R2J20654NP

Preliminary Datasheet R2J20654NP Integrated Driver - MOS FET (DrMOS) Description R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 The R2J20654NP multi-chip module incorporates a high-side MOS FET, low-side MOS FET, and MOS-FET driver in a single QFN package. The on and off timing of the power MOS FET is optimized by the built-in driver, making this device suitable for large-current buck converters. The chip also incorporates a high-side bootstrap switch, eliminating the need for an external SBD for this purpose. Features                Compliant with Intel 6  6 DrMOS Specification. Built-in power MOS FET suitable for Desktop, Server application. Low-side MOS FET with built-in SBD for lower loss and reduced ringing. Built-in driver circuit which matches the power MOS FET Built-in tri-state input function which can support a number of PWM controllers High-frequency operation (above 1 MHz) possible VIN operating-voltage range: 20 Vmax Large average output current (Max.40 A) Achieve low power dissipation Controllable driver: Remote on/off Zero current detection for a diode emulation operation Double thermal protection: Thermal Warning & Thermal Shutdown Built-in bootstrapping Switch Small package: QFN40 (6 mm  6 mm  0.95 mm) Terminal Pb-free/Halogen-free Outline Integrated Driver-MOS FET (DrMOS) QFN40 package 6 mm × 6 mm VCIN BOOT GH VIN 40 THWN Driver Pad High-side MOS Pad 1 10 11 DISBL# MOS FET Driver ZCD_EN# Low-side MOS Pad PWM 31 CGND VDRV GL PGND 30 (Bottom view) 21 20 VSWH R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 1 of 15 R2J20654NP Preliminary Block Diagram Driver Chip VCIN VDRV BOOT GH THWN DISBL# THWN THDN Boot SW VIN High-side MOS FET 2 μA CGND UVL Level Shifter 20 k CGND VCIN 160 k Zero ZCD_EN# Current Det. Overlap Protection. & Logic VCIN VDRV VSWH Low-side MOS FET PWM Input Logic (TTL Level) (3 state in) 35 k PGND CGND GL Notes: 1. Truth table for the DISBL# pin DISBL# Input Driver Chip Status "L" "Open" "H" Shutdown (GL, GH = "L") Shutdown (GL, GH = "L") Enable (GL, GH = "Active") 2. Truth table for the ZCD_EN# pin ZCD_EN# Input GL Status "L" "Diode Emulation Mode" "Open" "Continuous Conduction Mode" "H" "Continuous Conduction Mode" 4. Output signal from the THWN block 3. Output signal from the UVL block UVL output Logic Level "H" For shutdown "L" VL VH VCIN For active "H" Thermal Warning Logic Level "L" Normal operating Thermal Warning TIC(°C) TwarnL TwarnH 5. Truth table for the THDN block Driver IC Temp. Driver Chip Status < 150°C Enable (GL, GH = "Active") > 150°C Shutdown (GL, GH = "L") (latch-off) R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 2 of 15 R2J20654NP Preliminary Pin Arrangement VSWH CGND ZCD_EN# 1 40 39 BOOT 4 VDRV 3 10 9 8 7 6 5 VIN VIN VIN VIN VSWH PGND PGND PGND PGND PGND VCIN 2 VIN VIN VIN GH 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 PWM DISBL# THWN CGND GL VSWH VSWH VSWH VSWH VSWH VIN CGND 38 37 36 35 VSWH 34 33 32 31 PGND PGND PGND PGND PGND PGND PGND PGND VSWH (Top view) Note: All die-pads (three pads in total) should be soldered to PCB. Pin Description Pin Name ZCD_EN# VCIN VDRV BOOT CGND GH VIN VSWH PGND GL THWN DISBL# Pin No. 1 2 3 4 5, 37, Pad 6 8 to 14, Pad 7, 15, 29 to 35, Pad 16 to 28 36 38 39 Description Zero current detection enable Control input voltage (+5 V input) Gate supply voltage (+5 V input) Bootstrap voltage pin Control signal ground High-side gate signal Input voltage Phase output/Switch output Power ground Low-side gate signal Thermal warning Signal disable Remarks When asserted "L" signal, zero crossing detection is enabled Driver Vcc input 5 V gate drive To be supplied +5 V through internal switch Should be connected to PGND externally Pin for monitor Pin for monitor Thermal warning when over 115°C Disabled when DISBL# is "L". This Pin is pulled low when internal IC over the thermal shutdown level, 150°C. Capable of both 3.3 V and 5 V logic input PWM 40 PWM drive logic input R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 VSWH Page 3 of 15 R2J20654NP Preliminary Absolute Maximum Ratings (Ta = 25°C) Item Power dissipation Average output current Input voltage Supply voltage & Drive voltage Switch node voltage BOOT voltage I/O voltage THWN/THDN current Operating junction temperature Storage temperature Notes: 1. 2. 3. 4. 5. Symbol Pt(25) Pt(110) Iout VIN(DC) VIN(AC) VCIN & VDRV VSWH(DC) VSWH(AC) VBOOT(DC) VBOOT(AC) Vpwm, Vdisbl, Vlsdbl, Vthwn Ithwn, Idisbl Tj-opr Tstg Rating 25 8 40 –0.3 to +20 30 –0.3 to +6 20 30 25 36 –0.3 to VCIN + 0.3 0 to 1.0 –40 to +150 –55 to +150 Units W A V V V V V mA °C °C Note 1 2 2, 4 2 2 2, 4 2 2, 4 2, 5 3 Pt(25) represents a PCB temperature of 25°C, and Pt(110) represents 110C. Rated voltages are relative to voltages on the CGND and PGND pins. For rated current, (+) indicates inflow. The specification values indicated "AC" is limited within 10 ns. VCIN + 0.3 V < 6 V Safe Operating Area 50 45 Average Output Current (A) 40 35 30 25 20 15 10 5 0 0 VIN = 12 V VCIN = VDRV = 5 V VOUT = 1.3 V fPWM = 1 MHz L = 0.45 μH 25 50 75 100 PCB Temperature (°C) 125 150 175 R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 4 of 15 R2J20654NP Preliminary Recommended Operating Condition Item Input voltage Supply voltage & Drive voltage Symbol VIN VCIN & VDRV Rating 4.5 to 16 4.5 to 5.5 Units V V Note Electrical Characteristics (Ta = 25°C, VCIN = 5 V, VDRV = 5 V, VSWH = 0 V, unless otherwise specified) Supply Item VCIN start threshold VCIN shutdown threshold UVLO hysteresis VCIN operating current VCIN disable current PWM input PWM input high level PWM input low level PWM input resistance PWM input tri-state range DISBL# input Shutdown hold-off time Enable level Disable level Input current THDN on resistance ZCD disable level ZCD enable level Input current Warning temperature Temperature hysteresis THWN on resistance THWN leakage current Shutdown temperature Symbol VH VL dUVL ICIN ICIN-DISBL VH-PWM VL-PWM RIN-PWM VIN-tri tHOLD-OFF * VENBL VDISBL IDISBL 1 RTHDN * Vzcddisbl Vzcden Izcden TTHWN *1 THYS *1 RTHWN *1 ILEAK 1 Tstdn * 1 Min 4.1 3.6 — — — 2.6 — 6.5 1.4 — 2.0 — — 0.2 2.0 — –52 100 — 0.2 — 130 Typ 4.3 3.8 0.5 62 — — — 12.5 — 150 — — 2.0 0.5 — — –25 115 15 0.5 — 150 Max 4.5 4.0 — — 350 — 0.8 25 2.0 — — 0.8 5.0 1.0 — 0.8 –12 130 — 1.0 1.0 — Units V V V mA A V V k V ns V V A k V V A °C °C k A °C Test Conditions VH – VL fPWM = 1 MHz, Ton_pwm = 120 ns DISBL# = 0 V, PWM = LSDBL# = Open 3.3 V/5.0 V PWM interface PWM = 1 V 3.3 V/5.0 V PWM interface DISBL# = 1 V DISBL# = 0.2 V ZCD_EN# Thermal warning ZCD_EN# = 1 V Driver IC temperature THWN = 0.2 V THWN = 5 V Driver IC temperature Thermal shutdown Note: 1. Reference values for design. Not 100% tested in production. R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 5 of 15 R2J20654NP Preliminary Typical Application 4.5 to 16 V +5 V VCIN THWN VDRV BOOT GH VIN DISBL# R2J20654NP ZCD_EN# PWM CGND VSWH PGND GL VCIN THWN VDRV BOOT GH VIN DISBL# R2J20654NP ZCD_EN# PWM CGND PWM1 VSWH PGND GL PWM Control Circuit PWM2 +1.3 V PWM3 PWM4 VCIN THWN VDRV BOOT GH VIN DISBL# R2J20654NP ZCD_EN# PWM CGND VSWH Power GND Signal GND PGND GL VCIN THWN VDRV BOOT GH VIN DISBL# R2J20654NP ZCD_EN# PWM CGND VSWH PGND GL R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 6 of 15 R2J20654NP Preliminary Pin Connection +5 V 0.1 μF 1.0 μF 0 to 10 Ω VIN (4.5 V to 16 V) CGND ZCD_enable Signal INPUT CGND 10 μF × 4 11 12 10 9 8 7 6 5 4 3 2 1 BOOT CGND VDRV VCIN ZCD_EN# VIN VSWH GH PWM 40 PWM INPUT PGND 13 14 VIN 15 VSWH 16 PGND 17 18 19 VIN PAD CGND PAD DISBL# 39 THWN 38 CGND 37 10 kΩ R2J20654NP VSWH PAD VSWH GL 36 VSWH 35 34 33 32 10 kΩ +5 V +5 V Thermal Shutdown 21 22 23 24 25 26 27 28 PGND 20 31 Thermal Warning 29 30 Power GND Signal GND 0.45 μH Vout PGND PGND R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 7 of 15 R2J20654NP Preliminary Test Circuit Vinput A IIN V VIN Vcont A ICIN VCIN V VCIN DISBL# BOOT VIN R2J20654NP VDRV LSDBL# VSWH 5 V pulse PWM CGND GH GL PGND Electric load IO Note: PIN = IIN × VIN + ICIN × VCIN POUT = IO × VO Efficiency = POUT / PIN PLOSS(DrMOS) = PIN – POUT Ta = 27°C Averaging Output Voltage Averaging V VO circuit R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 8 of 15 R2J20654NP Preliminary Typical Data Power Loss vs. Output Current 8 VIN = 12 V Power Loss vs. Input Voltage 1.8 1.7 VOUT = 1.3 V 1.6 fPWM = 600 kHz Normalized Power Loss @ VIN = 12 V L = 0.45 μH VCIN = VDRV = 5 V 7 VCIN = VDRV = 5 V PWM 6 L = 0.45 μH VOUT = 1.3 V f = 600 kHz Power Loss (W) 1.5 IOUT = 25 A 1.4 1.3 1.2 1.1 1.0 0.9 5 4 3 2 1 0 0 5 10 15 20 25 30 35 40 0.8 0.7 4 6 8 10 12 14 16 Output Current (A) Input Voltage (V) Power Loss vs. Output Voltage 1.8 1.7 VCIN = VDRV = 5 V 1.6 fPWM = 600 kHz Normalized Power Loss @ VOUT = 1.3 V Normalized Power Loss @ fPWM = 600 kHz L = 0.45 μH VIN = 12 V Power Loss vs. Switching Frequency 1.8 1.7 VCIN = VDRV = 5 V 1.6 VOUT = 1.3 V L = 0.45 μH VIN = 12 V 1.5 IOUT = 25 A 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4 Output Voltage (V) 1.5 IOUT = 25 A 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 250 500 750 1000 1250 Switching Frequency (kHz) R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 9 of 15 R2J20654NP Preliminary Typical Data (cont.) Power Loss vs. Output Inductance 1.8 1.7 VCIN = VDRV = 5 V 1.6 VOUT = 1.3 V VIN = 12 V Power Loss vs. VCIN 1.8 1.7 VOUT = 1.3 V 1.6 fPWM = 600 kHz VIN = 12 V Normalized Power Loss @ L = 0.45 μH 1.5 IOUT = 25 A 1.4 1.3 1.2 1.1 1.0 0.9 0.8 Normalized Power Loss @ VCIN = VDRV = 5 V fPWM = 600 kHz L = 0.45 μH 1.5 IOUT = 25 A 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 4.5 5.0 5.5 6.0 0.7 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Output Inductance (μH) VCIN = VDRV (V) Average ICIN vs. Switching Frequency 90 VIN = 12 V 80 VCIN = VDRV = 5 V Average ICIN (mA) 70 60 50 40 30 20 VOUT = 1.3 V L = 0.45 μH IOUT = 0 A 10 250 500 750 1000 1250 Switching Frequency (kHz) R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 10 of 15 R2J20654NP Preliminary Description of Operation The DrMOS multi-chip module incorporates a high-side MOS FET, low-side MOS FET, and MOS-FET driver in a single QFN package. Since the parasitic inductance between each chip is extremely small, the module is highly suitable for use in buck converters to be operated at high frequencies. The control timing between the high-side MOS FET, lowside MOS FET, and driver is optimized so that high efficiency can be obtained at low output-voltage. VCIN & DISBL# The VCIN pin is connected to the UVL (under-voltage lockout) module, so that the driver is disabled as long as VCIN is 4.3 V or less. On cancellation of UVL, the driver remains enabled until the UVL input is driven to 3.8 V or less. The signal on pin DISBL# also enables or disables the circuit. Voltages from –0.3 V to VCIN can be applied to the DISBL# pin, so on/off control by a logic IC or the use of a resistor, etc., to pull the DISBL# line up to VCIN are both possible. VCIN L H H H DISBL#  L H Open Driver State Disable (GL, GH = L) Disable (GL, GH = L) Active Disable (GL, GH = L) The pulled-down MOSFET, which is turned on when internal IC temperature becomes over thermal shutdown level, is connected to the DISBL# pin. The detailed function is described in THDN section. PWM & ZCD_EN# The PWM pin is the signal input pin for the driver chip. The input-voltage range is –0.3 V to (VCIN + 0.3 V). When the PWM input is high, the gate of the high-side MOS FET (GH) is high and the gate of the low-side MOS FET (GL) is low. PWM L H GH L H GL H L The ZCD_EN# pin is the Zero Current Detection Operation Enable pin for "Diode Emulation Mode (DEM)" when ZCD_EN# is low. This function improves light load efficiency by preventing negative inductor current from output capacitor. Driver IC monitors inductor current and when inductor current crosses zero, driver IC turn off low-side MOS FET automatically. Figure 1.1 shows the Typical high side and low side gate switching and Inductor current (IL) during Continuous Conduction Mode (CCM), and Figure 1.2 shows DEM when asserting Zero Current Detection Enable signal. ZCD_EN# pin is internally pulled up to VCIN with 160 k resistor. When Zero Current Detection function is not used, keep this pin open or pulled up to VCIN. CCM Operation (ZCD_EN# = "H" or Open mode) IL 0A PWM GH GL Figure 1.1 Typical Signals during CCM R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 11 of 15 R2J20654NP DEM Operation (ZCD_EN# = "L" in Light load condition) IL 0A Preliminary PWM GH GL Figure 1.2 Typical Signals during DEM The PWM input is TTL level and has hysteresis. When the signal route from the control IC is high impedance, the tristate function turns off the high- and low-side MOS FETs. This function operates when the PWM input signal stays in the input hysteresis window for 150 ns (typ.). After the tri-state mode has been entered and GH and GL have become low, a PWM input voltage of 2.6 V or more is required to make the circuit return to normal operation. 150 ns (tHOLD-OFF) 150 ns (tHOLD-OFF) 2.0 V PWM 1.4 V GH GL 150 ns (tHOLD-OFF) 150 ns (tHOLD-OFF) 2.0 V PWM 1.4 V GH GL Figure 2 PWM Shutdown-Hold Time Signal R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 12 of 15 R2J20654NP Preliminary The equivalent circuit for the PWM-pin input is shown in the next figure. M1 is in the ON state during normal operation; after the PWM input signal has stayed in the hysteresis window for 150 ns (typ.) and the tri-state detection signal has been driven high, the transistor M1 is turned off. When VCIN is powered up, M1 is started in the OFF state regardless of PWM Low or Open state. After PWM is asserted high signal, M1 becomes ON and shifts to normal operation. VCIN M1 25 k PWM Pin Input Logic 12.5 k Tri-state detection signal To internal control Figure 3 Equivalent Circuit for the PWM-pin Input THWN & THDN This device has two level thermal detection, one is thermal warning and the other is thermal shutdown function. This Thermal Warning feature is the indication of the high temperature status. THWN is an open drain logic output signal and need to connect a pull-up resistor (ex.51 k) to THWN for Systems with the thermal warning implementation. When the chip temperature of the internal driver IC becomes over 115°C, Thermal warning function operates. This signal is only indication for the system controller and does not disable DrMOS operation. When thermal warning function is not used, keep this pin open. Thermal warning "H" THWN output Logic Level "L" Normal operating 100 115 TIC (°C) Figure 4 THWN Trigger Temperature R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 13 of 15 R2J20654NP THDN is an internal thermal shutdown signal when driver IC becomes over 150°C. Preliminary This function makes High-Side MOS FET and Low-Side MOS FET turn off for the device protection from abnormal high temperature situation and at the same time DISBL# pin is pulled low internally to give notice to the system controller. Once thermal shutdown function operates, driver IC keeps DISBL# pin pulled low until VCIN becomes under UVL level (3.8 V). Figure 5 shows the example of two types of DISBL# connection with the system controller signal. Driver IC Temp. < 150°C > 150°C Driver Chip Status Enable (GL, GH = "Active") Shutdown (GL, GH = "L") 5V 10 k DISBL# 2 μA To Internal Logic 10 k DISBL# 2 μA To Internal Logic To shutdown signal Thermal Shutdown Detection ON/OFF signal Thermal Shutdown Detection Figure 5.1 THDN Signal to the System Controller Figure 5.2 ON/OFF Signal from the System Controller MOS FET The MOS FETs incorporated in R2J20654NP are highly suitable for synchronous-rectification buck conversion. For the high-side MOS FET, the drain is connected to the VIN pin and the source is connected to the VSWH pin. For the lowside MOS FET, the drain is connected to the VSWH pin and the source is connected to the PGND pin. R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 Page 14 of 15 R2J20654NP Preliminary Package Dimensions JEITA Package Code P-VQFN40-6x6-0.50 RENESAS Code PVQN0040KC-A Previous Code ⎯ MASS[Typ.] 0.10g NOTE) b1,c1: DIMENSION BEFORE PLATING HD 2.0 2.2 30pin 31pin D 30pin 31pin 21pin 20pin 21pin 2.0 HE E 0.2 0.7 40pin 2.2 11pin 3.1 1pin 40pin 10pin 1pin Reference Dimension in Millimeters Symbol ZE 2.2 ZD S A 0.2 0.2 S b b1 ×M S A1 Lp c c1 yS Outer lead detail Ordering Information Part Name R2J20654NP#G3 Quantity 2500 pcs Shipping Container Taping Reel R07DS0246EJ0100 Rev.1.00 Jan 25, 2011 2.2 e 10pin Min Nom Max D 6.00 E 6.00 A 0.95 A1 0.005 b 0.17 0.22 0.27 b1 0.20 e 0.50 Lp 0.40 0.50 0.60 x y 0.05 y1 t HD 6.20 HE 6.20 ZD 0.75 ZE 0.75 c 0.17 0.22 0.27 c1 0.20 Page 15 of 15 Notice 1. All information included in this document is current as of the date this document is issued. Such information, however, is subject to change without any prior notice. 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