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PDF HMC980LP4E Data sheet ( Hoja de datos )
| Número de pieza | HMC980LP4E | |
| Descripción | ACTIVE BIAS CONTROLLER | |
| Fabricantes | Hittite Microwave Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HMC980LP4E (archivo pdf) en la parte inferior de esta página. Total 22 Páginas | ||
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www.DataSheet.co.kr
v01.0911
Typical Applications
• Microwave Radio & VSAT
• Military & Space
• Test Instrumentation
• Fiber Optic Modulator Driver Biasing
• CATV Laser Driver Biasing
• Cellular Base Station
• Wireless Infrastructure Equipment
13
HMC980LP4E
ACTIVE BIAS CONTROLLER
HIGH CURRENT
Features
• Automatic Gate voltage adjustment (No Calibra-
tion required)
• Supply Voltage (5V to 16.5V)
• Bias both Enhancement or Depletion type
devices
• Adjustable Drain Current up to 1.6 A
• Sink or source gate current
• Internal negative voltage generation
• Can be disabled to use external negative rail
• Fast Enable/Disable
• Trigger-out Output for Daisy Chain
• Power-Up and Power-Down Sequencing
• Over/Under Current Alarm with built-in hystresis
• 24 Lead 4mmx4mm QFN Package: 16mm2
Functional Diagram
General Description
HMC980LP4E is an active bias controller that can
automatically adjust the gate voltage of an external
amplifier to achieve constant bias current. With an
integrated controller, HMC980LP4E achieves safe
power on/off, disable/enable and automatic supply
sequencing ensuring the safety of the external
amplifier. It can be used to bias any enhancement
and depletion type amplifier operating in Class-A
regime with drain voltages (VDRAIN) from 5V to 16.5V
and drain currents (IDRAIN) up to 1.6 A, offering a
complete biasing solution.
HMC980LP4E achieves excellent bias stability over
supply, temperature and process variations, and
eliminates the required calibration procedures usually
employed to prevent RF performance degradation due
to such variations.
The HMC980LP4E is housed in an RoHS compliant
4x4 mm QFN leadless package with an exposed
backside pad to improve thermal characteristics.
13 - 1
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
HMC980LP4E
v01.0911
ACTIVE BIAS CONTROLLER
HIGH CURRENT
13
VNEG Load Transient VDD=5V
-2.2
-2.25
-2.3
-2.35
-2.4
-2.45
-2.5
-2.55
-2.6
012345678
TIME (ms)
40
30
20
10
0
-10
-20
-30
-40
9 10
VGATE Load Regulation @ VDD=12V [1]
0
-0.25
-0.5
IDrain is set to : 388mA
-0.75
-1
-1.25
+25C
+85C
-40C
-1.5
-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7
IG (mA)
VNEG Load Transient VDD=16.5V
-2.2
-2.25
-2.3
-2.35
-2.4
-2.45
-2.5
-2.55
-2.6
0123456789
TIME (ms)
40
30
20
10
0
-10
-20
-30
-40
10
VG2 Load Regulation @ VDD=12V [2]
10
9 VG2=0.97V
8
VG2=1.81V
VG2=3.73V
IDrain is set to : 388mA
VG2=6.68V
7
6
5
4
3
2
1
0
-8 -6 -4 -2 0 2 4 6
IG2 (mA)
8
VNEG Line Regulation vs. Supply Voltage
-2.44
No load condition
-2.46
13 - 5
-2.48
+25C
+85C
-40C
-2.5
5 7 9 11 13 15 17
SUPPLY VOLTAGE (V)
[1] HMC637LP5 is used as external amplifier
[2] HMC637LP5 is used as external amplifier
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
www.DataSheet.co.kr
v01.0911
Evaluation Board Circuit
HMC980LP4E
ACTIVE BIAS CONTROLLER
HIGH CURRENT
13
Notes:
[1] A variable resistor is assembled on R10 slot to adjust bias current for evaluating various different amplifiers without
soldering.
13 - 11
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Datasheet pdf - http://www.DataSheet4U.net/
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet HMC980LP4E.PDF ] | |
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