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參數(shù)資料
| 型號： | ADP1110AR-12 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Top Entry Connector Hood; Enclosure Material:Aluminum Alloy; For Use With:C146 Rectangular Circular Connectors; Thread Size:PG 29; Connecting Termination:Screw; Gender:Male; No. of Contacts:48; Operating Voltage:400V; Series:C-146 RoHS Compliant: Yes |
| 中文描述： | 1.5 A SWITCHING REGULATOR, 90 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 418K |
| 代理商： | ADP1110AR-12 |
ADP1110
–14–
REV. 0
1.5 V to +5 V, +10 V Dual Output Step-Up Converter
The circuit of Figure 35 illustrates a way to get outputs of
+10 V and +5 V from the same converter. The main 5 V output
is derived from the feedback provided by the 487 k
and 11 k
resistors. Capacitor C1 should be a multilayer ceramic variety
for best performance, but a good quality tantalum capacitor will
also give good performance at lower cost.
ILIM
VIN SW1
SW2
FB
GND
SET
AO
ADP1110
NC
6
7
8
1
2
4
5
3
1.5V
L1
50H
4.7F
ONE
ALKALINE
CELL
4.7F
NOTE: ALL DIODES 1N5818
CTX50-4
+5V
3mA
11k
487k
+10V
3mA
D1
D2
D3
220
Figure 35. 1.5 V to +5 V, +10 V Dual Output Step-Up
Converter
1.5 V-Powered Laser Diode Driver
Figure 36 shows a circuit suitable for driving many laser diodes
that incorporate a photodiode to monitor the laser diode
current, this circuit makes use of the gain block and current-
limit functions to provide a feedback system based on the
average laser diode current. This current must be controlled
very closely or permanent damage to the laser diode is likely to
be the result.
To ensure that the laser is operating at the proper power level,
the actual optical power from the laser should be monitored
with a calibrated photodiode or optical power meter. In
addition, the actual diode current should also be monitored, and
R1 can be adjusted to give the correct output power.
NOTES
1. All inductors referenced are Coiltronics CTX-series except
where noted.
2. If the source of power is more than an inch or so from the
converter, the input to the converter should be bypassed with
approximately 10
F of capacitance. This capacitor should be
a good quality tantalum or aluminum electrolytic.
ILIM
VIN
SW1
SW2
FB
GND
SET
AO
ADP1110
6
7
8
1
2
4
5
3
10
1N4148
220
1.5V
5.1k
0.022F
1k
2.2H
1F
2
1N5818
MJE210
TOSHIBA
TOLD-9321
100F
OS-Con
2N3906
1k
Figure 36. 1.5 V-Powered Laser Diode Driver
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADP1110AR-3.3 | 制造商:Rochester Electronics LLC 功能描述:MICROPWR STEPUP/DWN SWITCH REG 3.3V - Bulk |
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