HI-SINCERITY
MICROELECTRONICS CORP.
Spec. No. : HJ200209
Issued Date : 1998.08.01
Revised Date : 2002.08.09
Page No. : 1/3
H7809AJ
H7809BJ
3-TERMINAL POSITIVE VOLTAGE REGULATOR
Description
TO-252
The H7809_J series of three-terminal positive regulators are available
in the TO-252 package. These regulators can provide local on-card
regulation, eliminating the distribution problems associated with single point regulation. Each
employs internal current limiting, thermal shut-down and safe operating area protection, making it
essen-tially indestructible. If adequate heat sinking is provided, they can deliver over 1A output
current. Although designed primarily as fixed voltage regulators, these devices can be used with
external components to obtain adjustable voltages and currents.
H7809_J is characterized for operation from 0擄C to +125擄C, and if operating temperature is
always high, please refer to the power dissipation curve.
Absolute Maximum Ratings
(Ta=25擄C)
鈥?/div>
Input Voltage ....................................................................................................................... 35 V
鈥?/div>
Total Power Dissipation (TC=25擄C) .................................................................. Internally limited
鈥?/div>
Operating Junction Temperature ....................................................................... 0
擄C
to +125
擄C
鈥?/div>
Storage Temperature Range .......................................................................... -55
擄C
to +150
擄C
鈥?/div>
Output Current (TC=25擄C) .................................................................................................... 1 A
鈥?/div>
Lead Temperature (Soldering 10S) ................................................................................. 230
擄C
Typical Application
Schematic Diagram
Input
Vin
1
H7809_J
2
3
Vout
10K
3.4K
6.3V
200
200
0.3
1K
2K
C1
C2
30K
Output
VREF
26
1.9K
20pF
4K
Note:
C1 and C2 are required if regulator is
located far from power supply filter
and load, or oscillation may induced
on the loop.
26
4K
1.2
12.1K
1K
GND
H7809AJ, H7809BJ
HSMC Product Specification
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