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PDF GDTL494 Data sheet ( Hoja de datos )

Número de pieza GDTL494
Descripción VOLTAGE MODE PWN CONTROL CIRCUIT
Fabricantes GTM 
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GDTL494
ISSUED DATE :2003/05/26
REVISED DATE :2004/10/05B
VOLTAGE MODE PWM CONTROL CIRCUIT
Description
The GDTL494 incorporates all the functions required in the construction of a pulse-width modulation switching circuit. Designed
Primarily for switching power supply control or DC-DC convectors, it offers the systems engineer the flexibility to tailor control circuitry
to its own application.
Features
*Complete PWM power control circuitry
*Uncommitted outputs for 200 mA sink or source current
*Output control selects single ended or push pull operation
*Internal circuitry prohibits double pulses over total range.
*Easy synchronization.
Package Dimensions
REF.
A
A1
A2
b
b1
b2
b3
c
Millimeter
Min. Max.
- 5.334
0.381
-
3.175
3.429
0.406
0.508
0.356
0.508
1.270
1.778
0.762
1.143
0.203
0.356
REF.
c1
D
E
E1
e
HE
L
S
Millimeter
Min. Max.
0.203
0.279
18.92
19.69
6.096
6.604
7.493
8.001
2.413
2.667
8.509
9.525
3.175
3.683
0 15
Absolute Maximum Ratings (Unless otherwise noted all is over operating free air temperature range)
PARAMETER
Supply Voltage (note1)
Amplifier Input Voltage
Collector output Voltage
SYMBOL
Vcc
Vi
Vo
VALUE
41
Vcc+0.3
41
V
V
V
UNIT
Collector output Current
Continuous Total Dissipation at (or for below)
25 free air Temperature(note 2)
Ico
PD
250
1000
mA
mW
Operating Temperature Range
Topr
0 TO 70
Storage Temperature Range
Tstg -65 TO 150
Lead Temperature 1.6mm from Case for 60 Sec. Tcase
300
Note1: All voltage values, except differential voltages are with respect to the network ground terminal.
Note2:For operation above 25 free-air temperature, the dissipation derates with 9.2mW/ .
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GDTL494 pdf
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ISSUED DATE :2003/05/26
REVISED DATE :2004/10/05B
Important Notice:
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of GTM.
GTM reserves the right to make changes to its products without notice.
GTM semiconductor products are not warranted to be suitable for use in life-support Applications, or systems.
GTM assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.
Head Office And Factory:
Taiwan: No. 17-1 Tatung Rd. Fu Kou Hsin-Chu Industrial Park, Hsin-Chu, Taiwan, R. O. C.
TEL : 886-3-597-7061 FAX : 886-3-597-9220, 597-0785
China: (201203) No.255, Jang-Jiang Tsai-Lueng RD. , Pu-Dung-Hsin District, Shang-Hai City, China
TEL : 86-21-5895-7671 ~ 4 FAX : 86-21-38950165
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