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參數(shù)資料
| 型號： | MAX8520 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Smallest TEC Power Drivers for Optical Modules |
| 中文描述： | 尺寸最小的TEC電源驅(qū)動器，用于光模塊 |
| 文件頁數(shù)： | 8/19頁 |
| 文件大小： | 605K |
| 代理商： | MAX8520 |
M
Smallest TEC Power Drivers for
Optical Modules
8
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(V
DD
= 5V, circuit of Figure 1, T
A
= +25
°
C unless otherwise noted)
THERMAL STABILITY,
COOLING MODE
MAX8520/21 toc20
4s/div
TEMPERATURE
0.001
°
C/div
T
TEC
= +25
°
C
T
A
= +45
°
C
THERMAL STABILITY,
ROOM TEMPERATURE
MAX8520/21 toc21
4s/div
TEMPERATURE
0.001
°
C/div
T
TEC
= +25
°
C
T
A
= +25
°
C
THERMAL STABILITY,
HEATING MODE
MAX8520/21 toc22
4s/div
TEMPERATURE
0.001
°
C/div
T
TEC
= +25
°
C
T
A
= +5
°
C
Pin Description
PIN
QFN
1
UCSP
E1, E2
NAME
FUNCTION
LX1
Inductor Connection. LX1 is high-impedance in shutdown.
2
D1, D2, D3
PGND1
Power Ground 1. Internal synchronous-rectifier ground connection. Connect all PGND
pins together at power ground plane.
3
4
C1
C2
SHDN
COMP
Shutdown Control Input. Pull
SHDN
low to turn off PWM control and ITEC output.
Current-Control Loop Compensation. Refer to the
Compensation Capacitor
section.
5
B1
ITEC
TEC Current-Monitor Output. The ITEC output voltage is a function of the voltage across
the TEC current-sense resistor. V
ITEC
= V
REF
+ 8 (V
OS
- V
CS
). Keep capacitance on ITEC
<150pF.
6
A1
MAXIN
Maximum Negative TEC Current. Connect MAXIN to REF to set default negative current
limit to -150mV/R
SENSE
. To lower this current limit, connect MAXIN to a resistor divider
network from REF to GND. The current limit will then be equal to -(V
MAXIN
/V
REF
) x
(150mV/R
SENSE
).
7
A2
MAXIP
Maximum Positive TEC Current. Connect MAXIP to REF to set default positive current limit
to 150mV/R
SENSE
. To lower this current limit, connect MAXIP to a resistor divider network
from REF to GND. The current limit will then be equal to (V
MAXIP
/V
REF
) x (150mV/R
SENSE
).
8
A3
MAXV
Maximum Bipolar TEC Voltage. Connect MAXV to REF to set default maximum TEC
voltage to V
DD
. To lower this limit, connect MAXV to a resistor-divider network from REF to
GND. The maximum TEC voltage is equal to 4 x V
MAXV
or V
DD
, whichever is lower.
9
A4
REF
1.50V Reference Output. Bypass REF to GND with a 0. 1μF ceramic capacitor.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8520ETP | 功能描述:其他電源管理 RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
| MAX8520ETP/GG8 | 制造商:Maxim Integrated Products 功能描述: |
| MAX8520ETP+ | 功能描述:顯示驅(qū)動器和控制器 TEC Power Driver for Optical Modules RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| MAX8520ETP+T | 功能描述:其他電源管理 TEC Power Driver for Optical Modules RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
| MAX8520ETP-T | 功能描述:其他電源管理 RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
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