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PDF TLE6389 Data sheet ( Hoja de datos )
| Número de pieza | TLE6389 | |
| Descripción | Step - Down DC/DC Controller | |
| Fabricantes | Infineon Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TLE6389 (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
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Step-Down DC/DC Controller
TLE 6389
Target Datasheet
Features
• Operation from 5V to 60V Input Voltage
• 100% Maximum Duty Cycle
• Efficiency >90%
• Output Current up to 3A
• Less than 100µA Quiescent Current
P-DSO-14-3, -4, -9, -11
• 2µA Max Shutdown Current
• Up to 350kHz Switching Frequency
• Adjustable and Fixed 5V and
3.3V Output Voltage versions
• 3% output voltage accuracy
VIN
RSENSE=
0.05
M1
L1 = 47 µH
VOUT
IOUT
(PWM Mode)
• Current-Mode Control Scheme
• On Chip Low Battery Detector
CIN1 =
100 µF
CBDS=
220 nF
COUT =
D1 100 µF
• Ambient operation range
-40°C to 125°C
RSI1=
400k
RSI2=
100k
CIN2 =
220nF
11 14 12 2
13 BDS
VS
CS
GDRV
FB
3
VOUT
9
7 SI
TLE6389G50-1
SO
10
RO
M1: Infineon SPD09P06PL
D1: Motorola MBRD360
L1: Coilcraft DO3340P-473
Cin1: TBD
Cout: Low ESR Tantalum
SI_GND SI_ENABLE SYNC GND RD
61
ON OFF
54
8
CRD =100nF
Type
TLE 6389 GV
TLE 6389 G50
TLE 6389 G50-1
TLE 6389 G33
TLE 6389 G33-1
Ordering Code
on request
on request
on request
on request
on request
Package
P-DSO-14
P-DSO-14
P-DSO-14
P-DSO-14
P-DSO-14
Description
adjustable
5V, Device Enable
5V, SI GND, SI Enable
3.3V, Device Enable
3.3V, SI GND, SI Enable
Functional description
The TLE6389 step-down DC-DC switching controllers provide high efficiency over loads
ranging from 1mA up to 3A. A unique PWM/PFM control scheme operates with up to a
100% duty cycle, resulting in very low dropout voltage. This control scheme eliminates
minimum load requirements and reduces the supply current under light loads to 100µA.
These step-down controllers drive an external P-channel MOSFET, allowing design
flexibility for applications up to 3A. A high switching frequency (up to 350kHz) and
Target Datasheet Rev. 1.7
1
2001-09-17
1 page  
www.DataSheet4U.com
TLE 6389
1 Absolute Maximum Ratings (cont’d)
Item Parameter
Symbol Limit Values Unit
min. max.
1.0.15 Voltage
VENABLE – 0.3 60
V
1.0.16 Current
Sense Input
IENABLE
1.0.17 Voltage
1.0.18 Current
Sense Output
VSI
ISI
1.0.19 Voltage
1.0.20 Current
VOUT Input
VSO
ISO
1.0.21
1.0.22
Voltage
VOUT
Current
IOUT
Reset Delay Adjust Input
1.0.23 Voltage
1.0.24 Current
Reset Output
VRD
IRD
1.0.25
1.0.26
Voltage
Current
Synchronization Input
VRO
IRO
1.0.27 Voltage
1.0.28 Current
VSYNC
ISYNC
–
– 0.3
–
– 0.3
–
– 0.3
–
– 0.3
TBD
– 0.3
-2
– 0.3
TBD
–
60
–
6.8
–
15
–
6.8
TBD
6.8
2
6.8
TBD
–
V
–
V
–
V
–
V
mA
V
mA
V
mA
Remarks
(TLE6389G50,
TLE6389G33,
TLE6389GV only)
ESD-Protection (Human Body Model; R=1,5kΩ; C=100pF)
1.0.29 all pins to GND
VHBM
–2
2
kV
Target Datasheet Rev. 1.7
5
2001-09-17
5 Page 
www.DataSheet4U.com
TLE 6389
3 Electrical Characteristics (cont’d)
5V< VS <48V; - 40°C< Tj <150°C;
all voltages with respect to ground; positive current defined flowing into the pin; unless otherwise specified
Item Parameter
Symbol Limit Values Unit Test Condition
min. typ. max.
3.0.28 Gate driver,
P-gate to source
voltage (on)
3.0.29 Gate driver,
peak charging
current
VGDRV – TBD
VS
6.5 V
IGDRV
TBD
A
VENABLE = 5 V
CBDS = 220 nF
CGDRV = 5nF
3.0.30 Gate driver,
peak discharging
current
IGDRV
TBD
A
3.0.31 Gate driver,
rise time
3.0.32 Gate driver,
fall time
3.0.33 Gate driver,
gate charge
tr 70
tf 100
QGDRV 50
ns VENABLE = 5 V
CBDS = 220 nF
CGDRV = 5nF
ns VENABLE = 5 V
CBDS = 220 nF
CGDRV = 5nF
nC
3.0.34 Current Limit
Threshold Voltage
3.0.35 PWM to PFM
Threshold Current
3.0.36 PFM to PWM
Threshold Timing
VLIM =
VVS –
VCS
toff_PFM
70
100 130 mV
0.1*
ILIM
TBD
mA ILIM = VLIM /
RSENSE
µs
3.0.37 Oscillator frequency fOSC
3.0.38 Maximum duty cycle dMAX
3.0.39 Minimum duty cycle dMIN
3.0.40 SYNC capture
range
270 360 450 kHz PWM mode only
100 % PWM mode only
TBD % PWM mode only
270 360 450 kHz PWM mode only
Target Datasheet Rev. 1.7
11
2001-09-17
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet TLE6389.PDF ] | |
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