R2J20651NP-G3 [RENESAS]

Integrated Driver - MOS FET (DrMOS); 集成的驱动程序 - MOS场效应管(的DrMOS )
R2J20651NP-G3
型号: R2J20651NP-G3
厂家: RENESAS TECHNOLOGY CORP    RENESAS TECHNOLOGY CORP
描述:

Integrated Driver - MOS FET (DrMOS)
集成的驱动程序 - MOS场效应管(的DrMOS )

服务器主板节能技术 驱动
文件: 总20页 (文件大小:179K)
中文:  中文翻译
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R2J20651NP  
Integrated Driver – MOS FET (DrMOS)  
REJ03G1743-0400  
Rev.4.00  
Mar 12, 2010  
Description  
The R2J20651NP 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 Schottky barrier  
diode (SBD), 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 applications with 5 V/12 V input  
Built-in driver circuit which matches the power MOS FET  
Built-in tri-state input function which can support a number of PWM controllers  
Capable of both 3.3 V and 5 V PWM signal  
VIN operating-voltage range: 16 V max  
High-frequency operation (above 1 MHz) possible  
Large average output current (Max. 35 A)  
Achieve low power dissipation  
Controllable driver: Remote on/off  
Low-side MOS FET disabled function for DCM operation  
Built-in thermal warning  
Built-in Schottky diode for bootstrapping  
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  
MOS FET Driver  
CGND VDRV  
GH  
VIN  
1
10  
40  
11  
THWN  
DISBL#  
LSDBL#  
PWM  
Driver  
Pad  
High-side  
MOS Pad  
VSWH  
Low-side MOS Pad  
31  
20  
30  
21  
GL PGND  
(Bottom view)  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 1 of 17  
R2J20651NP  
Block Diagram  
Driver chip  
GH VIN  
BOOT  
VCIN  
SBD  
UVL  
THWN  
THWN  
CGND  
High-side  
MOS FET  
Level shifter  
DISBL#  
0.5 μA  
VCIN  
CGND  
150 k  
LSDBL#  
PWM  
VSWH  
Overlap  
protection  
VCIN  
Input logic  
(TTL level)  
(3 state in)  
Low-side  
MOS FET  
CGND  
PGND  
VDRV  
GL  
Notes: 1. Truth table for the DISBL# pin.  
2. Truth table for the LSDBL# pin.  
DISBL# Input  
"L"  
Driver Chip Status  
Shutdown (GL, GH = "L")  
Shutdown (GL, GH = "L")  
Enable (GL, GH = "Active")  
LSDBL# Input  
GL Status  
"L"  
"L"  
"Open"  
"H"  
"Open"  
"H"  
"Active"  
"Active"  
3. Output signal from the UVL block  
4. Output signal from the THWN block  
Thermal  
warning  
"H"  
"H"  
THWN Output  
Logic Level  
For active  
Normal  
operating  
UVL Output  
Logic Level  
For shutdown  
"L"  
"L"  
VL  
VH  
TL  
TH  
VCIN  
TIC (°C)  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 2 of 17  
R2J20651NP  
Pin Arrangement  
10  
9
8
7
6
5
4
3
2
1
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
VIN  
VIN  
PWM  
DISBL#  
THWN  
CGND  
GL  
VIN  
CGND  
VIN  
VIN  
VSWH  
PGND  
PGND  
PGND  
PGND  
PGND  
VSWH  
VSWH  
VSWH  
VSWH  
VSWH  
VSWH  
21 22 23 24 25 26 27 28 29 30  
(Top view)  
Note: All die-pads (three pads in total) should be soldered to PCB.  
Pin Description  
Pin Name  
LSDBL#  
VCIN  
Pin No.  
Description  
Remarks  
When asserted "L" signal, Low-side gate disable  
1
2
3
4
Low-side gate disable  
Control input voltage (+5 V input) Driver Vcc input  
Gate supply voltage (+5 V input) 5 V gate drive  
VDRV  
BOOT  
CGND  
GH  
Bootstrap voltage pin  
Control signal ground  
High-side gate signal  
Input voltage  
To be supplied +5 V through internal SBD  
5, 37, Pad  
6
Should be connected to PGND externally  
Pin for Monitor  
VIN  
8 to 14, Pad  
VSWH  
PGND  
GL  
7, 15, 29 to 35, Pad Phase output/Switch output  
16 to 28  
36  
Power ground  
Low-side gate signal  
Thermal warning  
Signal disable  
Pin for Monitor  
THWN  
DISBL#  
PWM  
38  
Thermal warning when over 130°C  
Disabled when DISBL# is "L"  
Capable of both 3.3 V and 5 V logic input  
39  
40  
PWM drive logic input  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 3 of 17  
R2J20651NP  
Absolute Maximum Ratings  
(Ta = 25°C)  
Item  
Symbol  
Pt(25)  
Rating  
Units  
Note  
Power dissipation  
25  
W
1
Pt(110)  
8
Average output current  
Input voltage  
Iout  
35  
A
V
VIN (DC)  
–0.3 to +16  
2
2, 3  
2
VIN (AC)  
20  
Supply voltage & Drive voltage  
Switch node voltage  
VCIN & VDRV  
VSWH (DC)  
VSWH (AC)  
VBOOT (DC)  
VBOOT (AC)  
–0.3 to +6  
V
V
16  
2
25  
2, 3  
2
BOOT voltage  
I/O voltage  
22  
25  
V
V
2, 3  
2, 4  
Vpwm, Vdisble,  
Vlsdbl, Vthwn  
–0.3 to VCIN + 0.3  
Operating junction temperature  
Storage temperature  
Tj-opr  
Tstg  
–40 to +150  
–55 to +150  
°C  
°C  
Notes: 1. Pt(25) represents a PCB temperature of 25°C, and Pt(110) represents 110C.  
2. Rated voltages are relative to voltages on the CGND and PGND pins.  
3. The specification values indicated "AC" are limited within 100 ns.  
4. VCIN + 0.3 V < 6 V  
Safe Operating Area  
45  
40  
35  
30  
25  
Condition  
20  
15  
VOUT = 1.3 V  
VIN = 12 V  
VCIN = 5 V  
10 VDRV = 5 V  
L = 0.45 μH  
Fsw = 1 MHz  
5
0
0
25  
50  
75  
100  
125  
150  
175  
PCB Temperature (°C)  
Recommended Operating Condition  
Item  
Symbol  
Rating  
Units  
Note  
Input voltage  
Supply voltage & Drive voltage  
VIN  
4.5 to 14  
4.5 to 5.5  
V
V
VCIN & VDRV  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 4 of 17  
R2J20651NP  
Electrical Characteristics  
(Ta = 25C, VCIN = 5 V, VDRV = 5 V, VSWH = 0 V, unless otherwise specified)  
Item  
Symbol  
VH  
Min  
3.1  
2.7  
Typ  
3.5  
3.0  
0.5  
29  
Max  
3.9  
3.3  
Units  
V
Test Conditions  
Supply  
VCIN start threshold  
VCIN shutdown threshold  
UVLO hysteresis  
VL  
V
dUVL  
ICIN  
V
VH – VL  
VCIN operating current  
mA  
fPWM = 1 MHz,  
Ton_pwm = 120 ns  
VCIN disable current  
ICIN-DISBL  
50  
A  
DISBL# = 0 V, PWM = 0 V,  
LSDBL# = Open  
PWM  
input  
PWM rising threshold  
PWM falling threshold  
PWM input resistance  
Tri-state shutdown window  
Shutdown hold-off time  
Disable threshold  
VH-PWM  
VL-PWM  
RIN-PWM  
VIN-SD  
1.7  
0.9  
42  
2.1  
1.2  
70  
2.5  
1.5  
V
V
98  
k  
V
PWM = 1 V  
VL-PWM  
VH-PWM  
1
tHOLD-OFF  
VDISBL  
VENBL  
*
240  
1.2  
2.4  
0.5  
2.4  
1.2  
–27  
130  
15  
ns  
V
DISBL#  
input  
0.9  
1.9  
1.5  
Enable threshold  
2.9  
V
Input current  
IDISBL  
2.0  
A  
V
DISBL# = 1 V  
LSDBL# Low-side activation threshold VLSDBLH  
1.9  
0.9  
–54  
110  
2.9  
input  
Low-side disable threshold  
Input current  
VLSDBLL  
ILSDBL  
TTHWN  
1.5  
V
–13.5  
A  
°C  
°C  
k  
A  
LSDBL# = 1 V  
1
Thermal Warning temperature  
*
Driver IC temperature  
1
warning  
Temperature hysteresis  
THWN on resistance  
THWN leakage current  
THYS  
RTHWN  
ILEAK  
*
1
*
1.0  
2.5  
0.001  
4.0  
THWN = 1 V  
THWN = 5 V  
1.0  
Note: 1. Reference values for design. Not 100% tested in production.  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 5 of 17  
R2J20651NP  
Pin Connection  
+5 V  
0.1 μF  
1.0 μF  
CGND  
Low Side Disable Signal INPUT  
VIN  
(4.5 V~14 V)  
0~10 Ω  
CGND  
10  
9
8
7
6
5
4
3
2
1
PWM  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
PWM INPUT  
10 μF × 4  
DISBL#  
THWN  
VIN  
CGND  
PAD  
PAD  
PGND  
VIN  
CGND  
GL  
DISBL# INPUT  
+5 V  
VSWH  
PGND  
51 kΩ  
R2J20651NP  
VSWH  
VSWH  
PAD  
21 22 23 24 25 26 27 28 29 30  
0.45 μF  
Vout  
PGND  
PGND  
Power GND Signal GND  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 6 of 17  
R2J20651NP  
Typical Application  
(1) 12 V Input Power  
+12 V  
+5 V  
VCIN VDRV BOOT GH  
THWN  
VIN  
DISBL# R2J20651  
VSWH  
NP  
LSDBL#  
PGND  
GL  
PWM  
CGND  
VCIN VDRV BOOT GH  
THWN  
VIN  
DISBL# R2J20651  
VSWH  
NP  
LSDBL#  
PGND  
GL  
PWM  
CGND  
PWM1  
+1.3 V  
PWM2  
PWM  
Control  
PWM3  
Circuit  
VCIN VDRV BOOT GH  
PWM4  
THWN  
VIN  
DISBL# R2J20651  
VSWH  
NP  
Power GND Signal GND  
LSDBL#  
PGND  
GL  
PWM  
CGND  
VCIN VDRV BOOT GH  
THWN  
VIN  
DISBL# R2J20651  
VSWH  
NP  
LSDBL#  
PGND  
GL  
PWM  
CGND  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 7 of 17  
R2J20651NP  
(2) 5 V Input Power  
+5 V  
VCIN VDRV BOOT GH  
THWN  
VIN  
DISBL# R2J20651  
VSWH  
NP  
LSDBL#  
PGND  
GL  
PWM  
CGND  
VCIN VDRV BOOT GH  
THWN  
VIN  
DISBL# R2J20651  
VSWH  
NP  
LSDBL#  
PGND  
GL  
PWM  
CGND  
PWM1  
+1.5 V  
PWM2  
PWM  
Control  
PWM3  
Circuit  
VCIN VDRV BOOT GH  
PWM4  
THWN  
VIN  
DISBL# R2J20651  
VSWH  
NP  
Power GND Signal GND  
LSDBL#  
PGND  
GL  
PWM  
CGND  
VCIN VDRV BOOT GH  
THWN  
VIN  
DISBL# R2J20651  
VSWH  
NP  
LSDBL#  
PGND  
GL  
PWM  
CGND  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 8 of 17  
R2J20651NP  
Test Circuit  
IIN  
A
A
Vinput  
Vcont  
VIN  
V
ICIN  
6.2 Ω  
VCIN  
V
VCIN VDRV  
DISBL#  
BOOT  
0.1 μF  
VIN  
LSDBL# R2J20651  
NP  
VSWH  
THWN  
PGND  
Electric  
load  
PWM  
5V pulse  
fPWM  
IO  
CGND  
GH  
GL  
Note: PIN = IIN × VIN + ICIN × VCIN  
POUT = IO × VO  
Average Output Voltage  
VO  
Averaging  
circuit  
V
Efficiency = POUT / PIN  
PLOSS(DrMOS) = PIN – POUT  
Ta = 27°C  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 9 of 17  
R2J20651NP  
Typical Data  
Power Loss vs. Output Current  
VIN = 12 V  
Power Loss vs. Input Voltage  
10  
1.5  
1.4  
1.3  
1.2  
1.1  
1.0  
0.9  
0.8  
VCIN = 5 V  
VOUT = 1.3 V  
PWM = 600 kHz  
L = 0.45 μH  
IOUT = 25 A  
9
8
7
6
5
4
3
2
1
0
VCIN = 5 V  
VOUT = 1.3 V  
PWM = 600 kHz  
L = 0.45 μH  
f
f
0
5
10  
15  
20  
25  
30  
35  
4
6
8
10  
12  
14  
16  
Output Current (A)  
Input Voltage (V)  
Power Loss vs. Output Voltage  
Power Loss vs. Switching Frequency  
1.5  
1.4  
1.3  
1.2  
1.1  
1.0  
0.9  
0.8  
1.5  
1.4  
1.3  
1.2  
1.1  
1.0  
0.9  
0.8  
VIN = 12 V  
VCIN = 5 V  
PWM = 600 kHz  
L = 0.45 μH  
IOUT = 25 A  
VIN = 12 V  
VCIN = 5 V  
VOUT = 1.3 V  
L = 0.45 μH  
IOUT = 25 A  
f
0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0 4.4  
250  
500  
750  
1000  
1250  
Output Voltage (V)  
Switching Frequency (kHz)  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 10 of 17  
R2J20651NP  
Typical Data (cont.)  
Power Loss vs. Output Inductance  
Power Loss vs. VCIN  
1.5  
1.4  
1.3  
1.2  
1.1  
1.0  
0.9  
0.8  
1.5  
1.4  
1.3  
1.2  
1.1  
1.0  
0.9  
0.8  
VIN = 12 V  
VCIN = 5 V  
VOUT = 1.3 V  
VIN = 12 V  
VOUT = 1.3 V  
PWM = 600 kHz  
L = 0.45 μH  
IOUT = 25 A  
f
f
PWM = 600 kHz  
IOUT = 25 A  
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0  
4.0  
4.5  
5.0  
5.5  
6.0  
Output Inductance (μH)  
VCIN (V)  
Average ICIN vs. Switching Frequency  
50  
VIN = 12 V  
VCIN = 5 V  
VOUT = 1.3 V  
L = 0.45 μH  
IOUT = 0 A  
40  
30  
20  
10  
0
250  
500  
750  
1000  
1250  
Switching Frequency (kHz)  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 11 of 17  
R2J20651NP  
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, low-  
side 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 3.5 V or less. On cancellation of UVL, the driver remains enabled until the UVL input is driven to 3.0 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  
DISBL#  
Driver State  
Disable (GL, GH = L)  
Disable (GL, GH = L)  
Active  
L
L
H
H
H
H
Open  
Disable (GL, GH = L)  
PWM & LSDBL#  
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  
GH  
L
GL  
H
L
H
H
L
The LSDBL# pin is the low-side gate disable pin for "Discontinuous Conduction Mode (DCM)" when LSDBL# is low.  
Figure 1 shows the typical high-side and low-side gate switching and inductor current (IL) during Continuous  
Conduction Mode (CCM) and low-side gate disabled when asserting low-side disable signal.  
This pin is internally pulled up to VCIN with 150 kresistor.  
When low-side disable function is not used, keep this pin open or pulled up to VCIN.  
CCM Operation (LSDBL# = "H" or Open mode)  
IL  
GH  
GL  
Figure 1.1 Typical Signals During CCM  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 12 of 17  
R2J20651NP  
DCM Operation (LSDBL# = "L")  
IL  
0 A  
GH  
GL  
Figure 1.2 Typical Signals During Low-Side Disable Operation  
The PWM input is TTL level and has hysteresis. When the signal route from the control IC is high impedance, the tri-  
state 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 240 ns (typ.). After the tri-state mode has been entered and GH and GL have become  
low, a PWM input voltage of 2.1 V or more is required to make the circuit return to normal operation.  
240 ns (tHOLD-OFF  
)
240 ns (tHOLD-OFF)  
2.1 V  
1.2 V  
PWM  
GH  
GL  
240 ns (tHOLD-OFF  
)
240 ns (tHOLD-OFF)  
2.1 V  
1.2 V  
PWM  
GH  
GL  
Figure 2  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 13 of 17  
R2J20651NP  
THWN  
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 130°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"  
Normal  
THWN output  
Logic Level  
operating  
"L"  
TIC (°C)  
115 130  
Figure 3  
MOS FETs  
The MOS FETs incorporated in R2J20651NP 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 low-  
side MOS FET, the drain is connected to the VSWH pin and the source is connected to the PGND pin.  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 14 of 17  
R2J20651NP  
PCB Layout Example  
Figure 4 shows an example of the PCB layout for the R2J20651NP. Placing several ceramic capacitors (e.g. 10 F)  
between VIN and PGND can be expected to the decreasing switching noise and improvement of efficiency.  
In that case, it is necessary to connect each GND pattern with low impedance by using other PCB layers.  
Moreover, by taking the wide VSWH pattern, the effect of letting the heat from the low side MOS FET can be expected.  
When R2J20651NP is mounted on a small substrate like POL module, the temperature rising of the device could be  
eased if the thermal via-hole is added under the pad of VIN and VSWH.  
10 μF  
10 μF  
Vin  
10 μF  
10 μF  
0.1 μF  
GND  
Rboot  
GND  
GND  
1 μF  
VCIN  
VSWH  
GND  
DISBL#  
PWM  
To Inductor  
Via Hole  
Figure 4 R2J20651NP PCB Layout Example (Top View)  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 15 of 17  
R2J20651NP  
Footprint Example  
(Unit: mm)  
0.20  
6.20  
0.20  
2.3  
C0.4  
0.6  
0.3  
C0.1  
13–R0.2  
2.15  
0.6  
0.50  
40–0.30  
Figure 5 Footprint Example  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 16 of 17  
R2J20651NP  
Package Dimensions  
JEITA Package Code  
RENESAS Code  
Previous Code  
MASS[Typ.]  
P-HVQFN40-p-0606-0.50  
PVQN0040KC-A  
HD  
D
HD/2  
D /2  
4-C0.50  
B
B
1pin  
1pin  
INDEX  
40  
40  
2.2  
C0.3  
A
0.7  
0.2  
1.95  
Dimension in Millimeters  
Min Nom Max  
5.95 6.00 6.05  
5.95 6.00 6.05  
Reference  
Symbol  
2-A section  
CAV No.  
Die No.  
D
E
2.05  
1.95  
A2 0.87 0.89 0.91  
f
0.20  
ZD  
A
0.865 0.91 0.95  
X 4  
e
X 4  
t
S AB  
A1 0.005 0.02 0.04  
0.17 0.22 0.27  
b1 0.16 0.20 0.24  
0.50  
Lp 0.40 0.50 0.60  
f
S AB  
b
b
x
S AB  
y1  
S
e
L1  
x
y
y1  
t
0.05  
0.05  
0.20  
0.20  
S
HD 6.15 6.20 6.25  
HE 6.15 6.20 6.25  
y
S
Lp  
ZD  
ZE  
0.75  
0.75  
L1 0.06 0.10 0.14  
c1 0.17 0.20 0.23  
c2 0.17 0.22 0.27  
Ordering Information  
Part Name  
Quantity  
Shipping Container  
Taping Reel  
R2J20651NP#G3  
2500 pcs  
REJ03G1743-0400 Rev.4.00 Mar 12, 2010  
Page 17 of 17  
Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan  
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but not limited to, product data, diagrams, charts, programs, algorithms, and application circuit examples.  
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Colophon .7.2  

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