FDS3992 - ON SEMICONDUCTOR

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April 2013

FDS3992 Rev. C

FDS3992

Dual N-Channel PowerTrench® MOSFET

100V, 4.5A, 62mΩ

Features

• rDS(ON) = 54mΩ (Typ.), VGS = 10V, ID = 4.5A

• Qg(tot) = 11nC (Typ.), VGS = 10V

• Low Miller Charge

• Low QRR Body Diode

• Optimized efficiency at high frequencies

• UIS Capability (Single Pulse and Repetitive Pulse)

Formerly developmental type 82745

Applications

• DC/DC converters and Off-Line UPS

• Distributed Power Architectures and VRMs

• Primary Switch for 24V and 48V Systems

• High Voltage Synchronous Rectifier

• Direct Injection / Diesel Injection Systems

• 42V Automotive Load Control

•Electronic Valve Train Systems

MOSFET Maximum Ratings TA = 25°C unless otherwise noted

Thermal Characteristics

Package Marking and Ordering Information

Symbol Parameter Ratings Units

VDSS Drain to Source Voltage 100 V

VGS Gate to Source Voltage ±20 V

Drain Current

4.5 A

Continuous (TA = 25oC, VGS = 10V, RθJA = 50oC/W)

Continuous (TA = 100oC, VGS = 10V, RθJA = 50oC/W) 2.8 A

Pulsed Figure 4 A

EAS Single Pulse Avalanche Energy (Note 1) 167 mJ

Total Package Power Dissipation 2.5 W

Derate above 25oC 20 mW/oC

TJ, TSTG Operating and Storage Temperature -55 to 150 oC

RθJA Thermal Resistance, Junction to Ambient at 10 seconds (Note 3) 50 oC/W

RθJA Thermal Resistance, Junction to Ambient at 1000 seconds (Note 3) 85 oC/W

RθJC Thermal Resistance, Junction to Case (Note 2) 25 oC/W

Device Marking Device Package Reel Size Tape Width Quantity

SO-8

Branding Dash

(8)

(1)

(7)

(6)

(5)

(3)

(4)

(2)

FDS3992 FDS3992 SO-8 13’’ 12mm 2500 units

FDS3992

Electrical Characteristics TA = 25°C unless otherwise noted

Off Characteristics

On Characteristics

Dynamic Characteristics

Switching Characteristics (VGS = 10V)

Drain-Source Diode Characteristics

Notes:

2: RθJA is the sum of the junction-to-case and case-to-ambient thermal resistance where the case thermal reference is defined as the solder mounting surface of the

drain pins. RθJC is guaranteed by design while RθCA is determined by the user’s board design.

3: RθJA is measured with 1.0 in2 copper on FR-4 board

Symbol Parameter Test Conditions Min Typ Max Units

BVDSS Drain to Source Breakdown Voltage ID = 250µA, VGS = 0V 100 - - V

IDSS Zero Gate Voltage Drain Current VDS = 80V - - 1 µA

VGS = 0V TC = 150oC - - 250

IGSS Gate to Source Leakage Current VGS = ±20V - - ±100 nA

VGS(TH) Gate to Source Threshold Voltage VGS = VDS, ID = 250µA 2 - 4 V

rDS(ON) Drain to Source On Resistance

ID = 4.5A, VGS = 10V - 0.054 0.062

Ω

ID = 2A, VGS = 6V - 0.072 0.108

ID = 4.5A, VGS = 10V,

TC = 150oC- 0.107 0.123

CISS Input Capacitance VDS = 25V, VGS = 0V,

f = 1MHz

- 750 - pF

COSS Output Capacitance - 118 - pF

CRSS Reverse Transfer Capacitance - 27 - pF

Qg(TOT) Total Gate Charge at 10V VGS = 0V to 10V

VDD = 50V

ID = 4.5A

Ig = 1.0mA

- 11 15 nC

Qg(TH) Threshold Gate Charge VGS = 0V to 2V - 1.4 1.9 nC

Qgs Gate to Source Gate Charge - 3.5 - nC

Qgs2 Gate Charge Threshold to Plateau - 2.1 - nC

Qgd Gate to Drain “Miller” Charge - 2.8 - nC

tON Turn-On Time

VDD = 50V, ID = 4.5A

VGS = 10V, RGS = 27Ω

- - 47 ns

td(ON) Turn-On Delay Time - 8 - ns

trRise Time - 23 - ns

td(OFF) Turn-Off Delay Time - 28 - ns

tfFall Time - 26 - ns

tOFF Turn-Off Time - - 81 ns

VSD Source to Drain Diode Voltage ISD = 4.5A - - 1.25 V

ISD = 2A - - 1.0 V

trr Reverse Recovery Time ISD= 4.5A, dISD/dt= 100A/µs - - 48 ns

QRR Reverse Recovery Charge ISD= 4.5A, dISD/dt= 100A/µs - - 65 nC

starting TJ= 25°C, L = 37mH, IAS = 3A. 100% test at L = 1mH, I = 10.3A.

Eof 167mJ is based on AS

FDS3992

Typical Characteristics TA = 25°C unless otherwise noted

Figure 1. Normalized Power Dissipation vs

Ambient Temperature

Figure 2. Maximum Continuous Drain Current vs

Ambient Temperature

Figure 3. Normalized Maximum Transient Thermal Impedance

Figure 4. Peak Current Capability

TA, AMBIENT TEMPERATURE (oC)

POWER DISSIPATION MULTIPLIER

0 25 50 75 100 150

0.2

0.4

0.6

0.8

1.0

1.2

125

25 50 75 100 125 150

ID, DRAIN CURRENT (A)

TA, AMBIENT TEMPERATURE (oC)

VGS = 10V

0.001

0.01

0.1

10-5 10-4 10-3 10-2 10-1 100101102103

t, RECTANGULAR PULSE DURATION (s)

ZθJA, NORMALIZED

SINGLE PULSE

NOTES:

DUTY FACTOR: D = t1/t2

PEAK TJ = PDM x ZθJA x RθJA + TA

PDM

DUTY CYCLE - DESCENDING ORDER

0.5

0.2

0.1

0.05

0.01

0.02

THERMAL IMPEDANCE

RθJA=50oC/W

100

10-5 10-4 10-3 10-2 10-1 100101102103

200

IDM, PEAK CURRENT (A)

t, PULSE WIDTH (s)

TRANSCONDUCTANCE

MAY LIMIT CURRENT

IN THIS REGION

VGS = 10V

TA = 25oC

I = I25 150 - TC

125

FOR TEMPERATURES

ABOVE 25oC DERATE PEAK

CURRENT AS FOLLOWS:

FDS3992

Figure 5. Forward Bias Safe Operating Area NOTE: Refer to Fairchild Application Notes AN7514 and AN7515

Figure 6. Unclamped Inductive Switching

Capability

Figure 7. Transfer Characteristics Figure 8. Saturation Characteristics

Figure 9. Drain to Source On Resistance vs Drain

Current

Figure 10. Normalized Drain to Source On

Resistance vs Junction Temperature

Typical Characteristics TA = 25°C unless otherwise noted

0.01

0.1

100

1 10 100 3000.1

200

ID, DRAIN CURRENT (A)

VDS, DRAIN TO SOURCE VOLTAGE (V)

TJ = MAX RATED

TC = 25oC

SINGLE PULSE

LIMITED BY rDS(ON)

AREA MAY BE

OPERATION IN THIS

10µs

100ms

10ms

100µs

1ms

0.1

0.01 0.1 1 10 100

IAS, AVALANCHE CURRENT (A)

tAV

, TIME IN AVALANCHE (ms)

STARTING TJ = 25oC

STARTING TJ = 150oC

tAV = (L)(IAS)/(1.3*RATED BVDSS - VDD)

If R = 0

If R ≠ 0

tAV = (L/R)ln[(IAS*R)/(1.3*RATED BVDSS - VDD) +1]

3.5 4.0 4.5 5.0 5.5 6.0 6.5

ID, DRAIN CURRENT (A)

VGS , GATE TO SOURCE VOLTAGE (V)

PULSE DURATION = 80µs

DUTY CYCLE = 0.5% MAX

VDD = 15V

TJ = 150oC

TJ = 25oC

TJ = -55oC

0 0.5 1.0 1.5 2.0

ID, DRAIN CURRENT (A)

VDS, DRAIN TO SOURCE VOLTAGE (V)

VGS = 6V

PULSE DURATION = 80µs

DUTY CYCLE = 0.5% MAX

VGS = 5V

VGS = 7V

VGS = 10V

TA = 25oC

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5

ID, DRAIN CURRENT (A)

VGS = 6V

VGS = 10V

DRAIN TO SOURCE ON RESISTANCE (m Ω)

PULSE DURATION = 80µs

DUTY CYCLE = 0.5% MAX

0.5

1.0

1.5

2.0

2.5

-80 -40 0 40 80 120 160

NORMALIZED DRAIN TO SOURCE

TJ, JUNCTION TEMPERATURE (oC)

ON RESISTANCE

VGS = 10V, ID = 4.5A

PULSE DURATION = 80µs

DUTY CYCLE = 0.5% MAX

FDS3992

Figure 11. Normalized Gate Threshold Voltage vs

Junction Temperature

Figure 12. Normalized Drain to Source

Breakdown Voltage vs Junction Temperature

Figure 13. Capacitance vs Drain to Source

Voltage

Figure 14. Gate Charge Waveforms for Constant

Gate Currents

Typical Characteristics TA = 25°C unless otherwise noted

0.6

0.8

1.0

1.2

-80 -40 0 40 80 120 160

NORMALIZED GATE

TJ, JUNCTION TEMPERATURE (oC)

VGS = VDS, ID = 250µA

THRESHOLD VOLTAGE

0.9

1.0

1.1

1.2

-80 -40 0 40 80 120 160

TJ, JUNCTION TEMPERATURE (oC)

NORMALIZED DRAIN TO SOURCE

ID = 250µA

BREAKDOWN VOLTAGE

100

1000

0.1 1 10 100

2000

C, CAPACITANCE (pF)

VGS = 0V, f = 1MHz

CISS = CGS + CGD

COSS ≅ CDS + CGD

CRSS = CGD

VDS, DRAIN TO SOURCE VOLTAGE (V)

0 2 4 6 8 10 12

VGS , GATE TO SOURCE VOLTAGE (V)

Qg, GATE CHARGE (nC)

VDD = 50V

ID = 4.5A

ID = 2A

WAVEFORMS IN

DESCENDING ORDER:

FDS3992

Test Circuits and Waveforms

Figure 15. Unclamped Energy Test Circuit Figure 16. Unclamped Energy Waveforms

Figure 17. Gate Charge Test Circuit Figure 18. Gate Charge Waveforms

Figure 19. Switching Time Test Circuit Figure 20. Switching Time Waveforms

VGS

0.01Ω

IAS

VDS

VDD

DUT

VARY tP TO OBTAIN

REQUIRED PEAK IAS

VDD

VDS

BVDSS

IAS

tAV

VGS +

VDS

VDD

DUT

Ig(REF)

VDD

Qg(TH)

VGS = 2V

Qg(TOT)

VGS = 10V

VDS

VGS

Ig(REF)

Qgs Qgd

Qgs2

VGS

RGS

DUT

VDD

VDS

VGS

tON

td(ON)

90%

10%

VDS 90%

10%

td(OFF)

tOFF

90%

50%

10% PULSE WIDTH

VGS

FDS3992

Thermal Resistance vs. Mounting Pad Area

The maximum rated junction temperature, TJM, and the

thermal resistance of the heat dissipating path determines

the maximum allowable device power dissipation, PDM, in an

application. Therefore the application’s ambient

temperature, TA (oC), and thermal resistance RθJA (oC/W)

must be reviewed to ensure that TJM is never exceeded.

Equation 1 mathematically represents the relationship and

serves as the basis for establishing the rating of the part.

In using surface mount devices such as the SO8 package,

the environment in which it is applied will have a significant

influence on the part’s current and maximum power

dissipation ratings. Precise determination of PDM is complex

and influenced by many factors:

1. Mounting pad area onto which the device is attached and

whether there is copper on one side or both sides of the

board.

2. The number of copper layers and the thickness of the

board.

3. The use of external heat sinks.

4. The use of thermal vias.

5. Air flow and board orientation.

6. For non steady state applications, the pulse width, the

duty cycle and the transient thermal response of the part,

the board and the environment they are in.

Fairchild provides thermal information to assist the

designer’s preliminary application evaluation. Figure 21

defines the RθJA for the device as a function of the top

copper (component side) area. This is for a horizontally

positioned FR-4 board with 1oz copper after 1000 seconds

of steady state power with no air flow. This graph provides

the necessary information for calculation of the steady state

junction temperature or power dissipation. Pulse

applications can be evaluated using the Fairchild device

Spice thermal model or manually utilizing the normalized

maximum transient thermal impedance curve.

Thermal resistances corresponding to other copper areas

can be obtained from Figure 21 or by calculation using

Equation 2. The area, in square inches is the top copper

area including the gate and source pads.

The transient thermal impedance (ZθJA) is also effected by

varied top copper board area. Figure 22 shows the effect of

copper pad area on single pulse transient thermal

impedance. Each trace represents a copper pad area in

square inches corresponding to the descending list in the

graph. Spice and SABER thermal models are provided for

each of the listed pad areas.

Copper pad area has no perceivable effect on transient

thermal impedance for pulse widths less than 100ms. For

pulse widths less than 100ms the transient thermal

impedance is determined by the die and package.

Therefore, CTHERM1 through CTHERM5 and RTHERM1

through RTHERM5 remain constant for each of the thermal

models. A listing of the model component values is available

in Table 1.

(EQ. 1)

PDM

TJM TA

–( )

RθJA

-------------------------------=

(EQ. 2)

RθJA 64 26

0.23 Area+

-------------------------------

100

150

200

0.001 0.01 0.1 1 10

Figure 21. Thermal Resistance vs Mounting

Pad Area

RθJA = 64 + 26/(0.23+Area)

RθJA (oC/W)

AREA, TOP COPPER AREA (in2)

Figure 22. Thermal Impedance vs Mounting Pad Area

120

150

t, RECTANGULAR PULSE DURATION (s)

ZθJA, THERMAL

COPPER BOARD AREA - DESCENDING ORDER

0.04 in2

0.28 in2

0.52 in2

0.76 in2

1.00 in2

IMPEDANCE (oC/W)

10-1 100101102103

FDS3992

PSPICE Electrical Model

.SUBCKT FDS3992 2 1 3 ; rev Aug 2002

Ca 12 8 2.3e-10

Cb 15 14 3.5e-10

Cin 6 8 7.47e-10

Dbody 7 5 DbodyMOD

Dbreak 5 11 DbreakMOD

Dplcap 10 5 DplcapMOD

Ebreak 11 7 17 18 108

Eds 14 8 5 8 1

Egs 13 8 6 8 1

Esg 6 10 6 8 1

Evthres 6 21 19 8 1

Evtemp 20 6 18 22 1

It 8 17 1

Lgate 1 9 5.61e-9

Ldrain 2 5 1e-9

Lsource 3 7 1.98e-9

RLgate 1 9 56.1

RLdrain 2 5 10

RLsource 3 7 19.8

Mmed 16 6 8 8 MmedMOD

Mstro 16 6 8 8 MstroMOD

Mweak 16 21 8 8 MweakMOD

Rbreak 17 18 RbreakMOD 1

Rdrain 50 16 RdrainMOD 25.e-3

Rgate 9 20 3.7

RSLC1 5 51 RSLCMOD 1e-6

RSLC2 5 50 1e3

Rsource 8 7 RsourceMOD 20e-3

Rvthres 22 8 Rvthresmod 1

Rvtemp 18 19 RvtempMOD 1

S1a 6 12 13 8 S1AMOD

S1b 13 12 13 8 S1BMOD

S2a 6 15 14 13 S2AMOD

S2b 13 15 14 13 S2BMOD

Vbat 22 19 DC 1

ESLC 51 50 VALUE={(V(5,51)/ABS(V(5,51)))*(PWR(V(5,51)/(1e-6*45),2.5))}

.MODEL DbodyMOD D (IS=2.4E-12 N=1.04 RS=13e-3 TRS1=2.1e-3 TRS2=4.7e-7

+ CJO=5.5e-10 M=0.57 TT=3.25e-8 XTI=4.6)

.MODEL DbreakMOD D (RS=1.6 TRS1=2.4e-3 TRS2=-1e-5)

.MODEL DplcapMOD D (CJO=1.6e-10 IS=1e-30 N=10 M=0.54)

.MODEL MmedMOD NMOS (VTO=3.8 KP=2 IS=1e-30 N=10 TOX=1 L=1u W=1u RG=3.7)

.MODEL MstroMOD NMOS (VTO=4.35 KP=28 IS=1e-30 N=10 TOX=1 L=1u W=1u)

.MODEL MweakMOD NMOS (VTO=3.26 KP=0.04 IS=1e-30 N=10 TOX=1 L=1u W=1u RG=37 RS=0.1)

.MODEL RbreakMOD RES (TC1=1.1e-3 TC2=-1e-8)

.MODEL RdrainMOD RES (TC1=1.15e-2 TC2=2.8e-5)

.MODEL RSLCMOD RES (TC1=3.3e-3 TC2=1e-6)

.MODEL RsourceMOD RES (TC1=1e-3 TC2=1e-6)

.MODEL RvthresMOD RES (TC1=-4.8e-3 TC2=-1.1e-5)

.MODEL RvtempMOD RES (TC1=-3e-3 TC2=1.5e-6)

.MODEL S1AMOD VSWITCH (RON=1e-5 ROFF=0.1 VON=-3 VOFF=-2)

.MODEL S1BMOD VSWITCH (RON=1e-5 ROFF=0.1 VON=-2 VOFF=-3)

.MODEL S2AMOD VSWITCH (RON=1e-5 ROFF=0.1 VON=-1.5 VOFF=1)

.MODEL S2BMOD VSWITCH (RON=1e-5 ROFF=0.1 VON=1 VOFF=-1.5)

.ENDS

Note: For further discussion of the PSPICE model, consult A New PSPICE Sub-Circuit for the Power MOSFET Featuring Global

Temperature Options; IEEE Power Electronics Specialist Conference Records, 1991, written by William J. Hepp and C. Frank

Wheatley.

RBREAK

RVTEMP

VBAT

RVTHRES

17 18

S1A

S1B

S2A

S2B

CA CB

EGS EDS

MWEAK

EBREAK DBODY

RSOURCE

SOURCE

LSOURCE

RLSOURCE

CIN

RDRAIN

EVTHRES 16

MMED

MSTRO

DRAIN

LDRAIN

RLDRAIN

DBREAK

DPLCAP

ESLC

RSLC1

RSLC2

GATE RGATE

EVTEMP

ESG

LGATE

RLGATE

FDS3992

SABER Electrical Model

REV Aug 2002

template FDS3992 n2,n1,n3

electrical n2,n1,n3

{

var i iscl

dp..model dbodymod = (isl=2.4e-12,nl=1.04,rs=13e-3,trs1=2.1e-3,trs2=4.7e-7,cjo=5.5e-10,m=0.57,tt=3.25e-8,xti=4.6)

dp..model dbreakmod = (rs=1.6,trs1=2.4e-3,trs2=-1.0e-5)

dp..model dplcapmod = (cjo=1.6e-10,isl=10e-30,nl=10,m=0.54)

m..model mmedmod = (type=_n,vto=3.8,kp=2.0,is=1e-30, tox=1)

m..model mstrongmod = (type=_n,vto=4.35,kp=28,is=1e-30, tox=1)

m..model mweakmod = (type=_n,vto=3.26,kp=0.04,is=1e-30, tox=1,rs=0.1)

sw_vcsp..model s1amod = (ron=1e-5,roff=0.1,von=-3.0,voff=-2.0)

sw_vcsp..model s1bmod = (ron=1e-5,roff=0.1,von=-2.0,voff=-3.0)

sw_vcsp..model s2amod = (ron=1e-5,roff=0.1,von=-1.5,voff=1.0)

sw_vcsp..model s2bmod = (ron=1e-5,roff=0.1,von=1.0,voff=-1.5)

c.ca n12 n8 = 2.3e-10

c.cb n15 n14 = 3.5e-10

c.cin n6 n8 = 7.47e-10

dp.dbody n7 n5 = model=dbodymod

dp.dbreak n5 n11 = model=dbreakmod

dp.dplcap n10 n5 = model=dplcapmod

spe.ebreak n11 n7 n17 n18 = 108

spe.eds n14 n8 n5 n8 = 1

spe.egs n13 n8 n6 n8 = 1

spe.esg n6 n10 n6 n8 = 1

spe.evthres n6 n21 n19 n8 = 1

spe.evtemp n20 n6 n18 n22 = 1

i.it n8 n17 = 1

l.lgate n1 n9 = 5.61e-9

l.ldrain n2 n5 = 1e-9

l.lsource n3 n7 = 1.98e-9

res.rlgate n1 n9 = 56.1

res.rldrain n2 n5 = 10

res.rlsource n3 n7 = 19.8

m.mmed n16 n6 n8 n8 = model=mmedmod, l=1u, w=1u

m.mstrong n16 n6 n8 n8 = model=mstrongmod, l=1u, w=1u

m.mweak n16 n21 n8 n8 = model=mweakmod, l=1u, w=1u

res.rbreak n17 n18 = 1, tc1=1.1e-3,tc2=-1e-8

res.rdrain n50 n16 = 25e-3, tc1=1.15e-2,tc2=2.8e-5

res.rgate n9 n20 = 3.7

res.rslc1 n5 n51 = 1e-6, tc1=3.3e-3,tc2=1e-6

res.rslc2 n5 n50 = 1e3

res.rsource n8 n7 = 20e-3, tc1=1e-3,tc2=1e-6

res.rvthres n22 n8 = 1, tc1=-4.8e-3,tc2=-1.1e-5

res.rvtemp n18 n19 = 1, tc1=-3e-3,tc2=1.5e-6

sw_vcsp.s1a n6 n12 n13 n8 = model=s1amod

sw_vcsp.s1b n13 n12 n13 n8 = model=s1bmod

sw_vcsp.s2a n6 n15 n14 n13 = model=s2amod

sw_vcsp.s2b n13 n15 n14 n13 = model=s2bmod

v.vbat n22 n19 = dc=1

equations {

i (n51->n50) +=iscl

iscl: v(n51,n50) = ((v(n5,n51)/(1e-9+abs(v(n5,n51))))*((abs(v(n5,n51)*1e6/45))** 2.5))

}

RBREAK

RVTEMP

VBAT

RVTHRES

17 18

S1A

S1B

S2A

S2B

CA CB

EGS EDS

MWEAK

EBREAK

DBODY

RSOURCE

SOURCE

LSOURCE

RLSOURCE

CIN

RDRAIN

EVTHRES 16

MMED

MSTRO

DRAIN

LDRAIN

RLDRAIN

DBREAK

DPLCAP

ISCL

RSLC1

RSLC2

GATE RGATE

EVTEMP

ESG

LGATE

RLGATE

FDS3992

SPICE Thermal Model

REV Aug 2002

FDS3992

Copper Area =1.0 in2

CTHERM1 TH 8 4e-4

CTHERM2 8 7 5e-3

CTHERM3 7 6 6e-2

CTHERM4 6 5 9e-2

CTHERM5 5 4 3e-1

CTHERM6 4 3 4e-1

CTHERM7 3 2 9e-1

CTHERM8 2 TL 2

RTHERM1 TH 8 5e-1

RTHERM2 8 7 6e-1

RTHERM3 7 6 4

RTHERM4 6 5 5

RTHERM5 5 4 8

RTHERM6 4 3 9

RTHERM7 3 2 15

RTHERM8 2 TL 23

SABER Thermal Model

Copper Area = 1.0 in2

template thermal_model th tl

thermal_c th, tl

{

CTHERM1 TH 8 4e-4

CTHERM2 8 7 5e-3

CTHERM3 7 6 6e-2

CTHERM4 6 5 9e-2

CTHERM5 5 4 3e-1

CTHERM6 4 3 4e-1

CTHERM7 3 2 9e-1

CTHERM8 2 TL 2

RTHERM1 TH 8 5e-1

RTHERM2 8 7 6e-1

RTHERM3 7 6 4

RTHERM4 6 5 5

RTHERM5 5 4 8

RTHERM6 4 3 9

RTHERM7 3 2 15

RTHERM8 2 TL 23

}

RTHERM6

RTHERM8

RTHERM7

RTHERM5

RTHERM4

RTHERM3

CTHERM4

CTHERM6

CTHERM5

CTHERM3

CTHERM2

CTHERM1

JUNCTION

CASE

RTHERM2

RTHERM1

CTHERM7

CTHERM8

TABLE 1. THERMAL MODELS

COMPONANT 0.04 in20.28 in20.52 in20.76 in21.0 in2

CTHERM6 3.2e-1 3.5e-1 4.0e-1 4.0e-1 4.0e-1

CTHERM7 8.5e-1 9.0e-1 9.0e-1 9.0e-1 9.0e-1

CTHERM8 0.3 1.8 2.0 2.0 2.0

RTHERM6 24 18 12 10 9

RTHERM7 36 21 18 16 15

RTHERM8 53 37 30 28 23

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