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ZXRE160AH5TA

P1-P3P4-P6P7-P9P10-P12P13-P15
ZXRE160
Document number: DS35688 Rev. 2 - 2
10 of 15
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June 2012
© Diodes Incorporated
ZXRE160
NEW PRODUCT
A
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Diodes Incorporated
Application Information (cont.)
⎟
⎠
⎞
⎜
⎝
⎛
+=
2R
1R
1VV
REFOUT
BEOUT
VV2.0V +≥
3R
OUTIN
I
VV
3R
−
=
Figure 8. 1V Current-Boosted Shunt Regulator
Design guide
1. Determine I
OUT
and choose a suitable transistor taking power dissipation into consideration.
2. Determine I
B
from
)1h(
I
I
(min)FE
(max)OUT
B
+
=
3. Determine I
R3
from
(max)OUT3R
II =
4. Determine R3 from
3R
OUTIN
I
VV
3R
−
=
5. It is best to let the ZXRE160 supply as much current as it can before bringing Q1 into conduction. Not only does this minimize the strain on
Q1, it also guarantees the most stable operation. Choose a nominal value between 10mA and <15mA for this current, I
R4
.
Calculate R4 from
4R
BE
I
V
4R =
V
OUT
goes low and LED is lit when monitored supply
⎟
⎠
⎞
⎜
⎝
⎛
+>
2R
1R
1
REF
V
M
V
3R
I
)2.0
F
V(
IN
V
3R
+−
=
)MAX(F
I
3R
ImA15 ≤≥
V
F
and I
F
are forward voltage drop and current of LED1.
Figure 9. 1.15V Over-Voltage Indicator
ZXRE160
Document number: DS35688 Rev. 2 - 2
11 of 15
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June 2012
© Diodes Incorporated
ZXRE160
NEW PRODUCT
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Diodes Incorporated
Application Information (cont.)
REFOUT
VV =
3R
FIN
I
)2.0V(V
3R
+−
=
)MAX(F3R
IImA15 ≤≥
Figure 10. Opto-Isolated 0.6V Shunt Regulator
⎟
⎠
⎞
⎜
⎝
⎛
+=
2R
1R
1VV
REFOUT
3R
FIN
I
)2.0V(V
3R
+−
=
)MAX(F3R
IImA15 ≤≥
Figure 11. Opto-Isolated 1.0V Shunt Regulator
V
F
and I
F
are forward voltage drop and forward current respectively for the optocoupler LED
More applications information is available in the following publications which can be found on Diodes’ web site.
AN58 - Designing with Diodes’ References – Shunt Regulation
AN59 - Designing with Diodes’ References – Series Regulation
AN60 - Designing with Diodes’ References – Fixed Regulators and Opto-Isolation
AN61 - Designing with Diodes’ References – Extending the operating voltage range
AN62 - Designing with Diodes’ References – Other Applications
AN63 - Designing with Diodes’ References – ZXRE060 Low Voltage Regulator
ZXRE160
Document number: DS35688 Rev. 2 - 2
12 of 15
www.diodes.com
June 2012
© Diodes Incorporated
ZXRE160
NEW PRODUCT
A
Product Line o
f
Diodes Incorporated
Ordering Information
Tol. Part Number Package
Identification
Code
Reel Size Tape Width Quantity/Reel
0.5%
ZXRE160AET5TA TSOT25 R8 7”, 180mm 8mm 3000
ZXRE160AH5TA SC70/SOT353 R9 7”, 180mm 8mm 3000
ZXRE160AFT4-7 DFN1520H4-6 R8 7”, 180mm 8mm 3000
1%
ZXRE160ET5TA TSOT25 Z8 7”, 180mm 8mm 3000
ZXRE160H5TA SC70/SOT353 Z9 7”, 180mm 8mm 3000
ZXRE160FT4-7 X2-DFN1520-6 Z8 7”, 180mm 8mm 3000
Marking Information
1. TSOT25, SC70/SOT353
2. X2-DFN1520-6
P1-P3P4-P6P7-P9P10-P12P13-P15

ZXRE160AH5TA

Mfr. #:
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Manufacturer:
Diodes Incorporated
Description:
Voltage References 0.5V ENH ADJ Prec Shunt REG 5-Term
Lifecycle:
New from this manufacturer.
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