Document
November 1998
FDC6329L Integrated Load Switch
General Description
This device is particularly suited for compact power management in portable electronic equipment where 2.5V to 8V input and 2.5A output current capability are needed. This load switch integrates a small N-Channel power MOSFET (Q1) which drives a large P-Channel power MOSFET (Q2) in one tiny SuperSOTTM-6 package.
Features
VDROP=0.2V @ VIN=5V, IL=2.8A. R(ON) = 0.07Ω VDROP=0.2V @ VIN=2.5V, IL=1.9A. R(ON) = 0.105Ω. Control MOSFET (Q1) includes Zener protection for ESD ruggedness (>6KV Human Body Model). High performance trench technology for extremely low on-resistance. SuperSOTTM-6 package design using copper lead frame for superior thermal and electrical capabilities.
SOT-23
SuperSOTTM-6
SuperSOTTM-8
SO-8
SOT-223
SOIC-16
EQUIVALENT CIRCUIT
V IN , R1
4
Q2
3
VOUT , C1
+ V DROP -
9 .32
VON/OFF
IN
OUT
5
Q1
2
VOUT , C1
O N / O FF
R1 , C1 pin 1
TM
6
See Application Circuit
1
R2
SuperSOT -6
Absolute Maximum Ratings
Symbol Parameter
TA = 25°C unless otherwise noted
FDC6329L
(Note 1)
Units
VIN VON/OFF IL
Input Voltage Range On/Off Voltage Range Load Current - Continuous - Pulsed
2.5 - 8 1.5 - 8 2.5 10
V V A
(Note 2)
PD TJ,TSTG ESD
Maximum Power Dissipation
(Note 2)
0.7 -55 to 150 6
W °C kV
Operating and Storage Temperature Range Electrostatic Discharge Rating MIL-STD-883D Human Body Model (100pf/1500Ohm)
THERMAL CHARACTERISTICS
RθJA RθJC
Thermal Resistance, Junction-to-Ambient Thermal Resistance, Junction-to-Case
(Note 2) (Note 2)
180 60
°C/W °C/W
FDC6329L Rev.C
Electrical Characteristics (T
Symbol Parameter OFF CHARACTERISTICS
A
= 25°C unless otherwise noted)
Conditions
Min
Typ
Max
Units
IFL VDROP R(ON) IL
Notes:
Forward Leakage Current
VIN = 8 V, VON/OFF = 0 V VIN = 5 V, VON/OFF = 3.3 V, IL = 2.8 A VIN = 2.5 V, VON/OFF = 3.3 V, IL = 1.9 A VGS = -5 V, ID = -2.5 A VGS = -2.5 V, ID = -2.0 A VDROP = 0.2 V, VIN = 5 V, VON/OFF = 3.3 V VDROP = 0.2 V, VIN = 2.5V, VON/OFF = 3.3 V 2.8 1.9 0.12 0.14 0.047 0.073
1
µA
ON CHARACTERISTICS (Note 3)
Conduction Voltage
0.2 0.2 0.07 0.105
V
Q2 - Static On-Resistance Load Current
Ω
A
1. Range of Vin can be up to 8V, but R1 and R2 must be scaled such that VGS of Q2 does not exceed -8V. 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. Pulse Test: Pulse Width < 300µs, Duty Cycle < 2.0%.
FDC6329L Load Switch Application
External Component Recommendation: For applications where Co ≤ 1µF. For slew rate control, select R2 in the range of 1k - 4.7kΩ . For additional in-rush current control, C1 ≤ 1000pF can be added. Select R1 so that the R1/R2 ratio ranges from 10 - 100. R1 is required to turn Q2 off.
FDC6329L Rev.C
Typical Electrical Characteristics (TA = 25 OC unless otherwise noted )
0.2 0.2
V IN = 5V VON/OFF = 1.5 - 8V PW =300us, D≤ 2% TJ = 125°C
0.15 VDROP ,(V) VDROP , (V)
TJ = 125°C
0.15
T = 25°C J
0.1
T = 25°C J
0.1
0.05
0.05
V IN = 2.5V VON/OFF = 1.5 - 8V PW =300us, D≤ 2%
0
0 0 0.6 1.2 I L , (A) 1.8 2.4 3
0
0.6
1.2 I L , (A)
1.8
2.4
3
Figure 1. Conduction Voltage Drop Variation with Load Current.
0.2
I L = 1A VON/OFF = 1.5 - 8V PW =300us, D≤ 2%
Figure 2. Conduction Voltage Drop Variation with Load Current.
0.16 R (ON) ,(Ohm)
0.12
T = 125°C J
0.08
0.04
25°C
0
1
2
3 VIN , (V)
4
5
Figure 3. On-Resistance Variation with Input Voltage.
TRANSIENT THERMAL RESISTANCE
1 0.5 0.2 0.1 0.05 0.02 0.01 0.005 0.00001 0.0001 0.001 0.01 0.1 t 1, TIME (sec) 1 10 100 300
D = 0.5
r(t), NORMALIZED EFFECTIVE
0.2 0.1 0.05 0.02 0.01 Single Pulse P(pk)
RθJA (t) = r(t) * R θJA RθJA = See Note 2
t1
t2
TJ - TA = P * R θJA(t) Duty Cycle, D = t 1/ t 2
Figure 4. Transient Thermal Response Curve.
Thermal characterization performed using the conditions described in Note 2. Transient thermal response will change depending on the circuit board design.
FDC6329L Rev.C
SuperSOTTM-6 Tape and Reel Data and Package Dimensions
SSOT-6 Packaging Configuration: Figure 1.0
Customize Label
Antistatic Cover Tape
Conductive Embossed Carrier Tape
F63TNR Label
631
SSOT-6 Packaging Information Packaging Option Packaging type Qty per Reel/Tube/Bag Reel Size Box Dimension (mm) Max qty per Box Weight per unit (gm) Weight per Reel (kg) Note/Comments Standard (no flow code) TNR 3,000 7” Dia 184x187x47 9,000 0.0158 0.1440 D87Z TNR 10,000 13” 343x343x64 20,000 0.0158 0.4700
631
631
631
Pin 1
SSOT-6 Unit Orientation
343mm x 342mm x 64mm Intermediate box for D87Z Option
F63TNR Label
F63TNR Label
F63TNR Label sample 184mm x 184mm x 47mm Pizza Box for Standard Option F63TNR Label
LOT: CBVK741B019 FSID: FDC633N QTY: 3000 SPEC:
Trailer SSOT-6 Tape Leader Configuration: Figure 2.0
D/C1: D9842 D/C2:
QTY1: QTY2:
SPEC REV: CPN:
QARV: (F63TNR)2
Carrier Ta.