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| 型号： | MAX8521ETP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/18页 |
| 文件大小： | 0K |
| 描述： | IC DRVR PWR TEC 20-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 应用： | 热电冷却器 |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
Smallest TEC Power Drivers for Optical
Modules
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
T TEC = +25 ° C
T A = +45 ° C
4s/div
TEMPERATURE
0.001 ° C/div
THERMAL STABILITY,
ROOM TEMPERATURE
MAX8520/21 toc21
T TEC = +25 ° C
T A = +25 ° C
4s/div
TEMPERATURE
0.001 ° C/div
THERMAL STABILITY,
HEATING MODE
MAX8520/21 toc22
TEMPERATURE
0.001 ° C/div
T TEC = +25 ° C
T A = +5 ° C
4s/div
Pin Description
TQFN
1
2
3
4
PIN
UCSP/WLP
E1, E2
D1, D2, D3
C1
C2
NAME
LX1
PGND1
SHDN
COMP
FUNCTION
Inductor Connection. LX1 is high-impedance in shutdown.
Power Ground 1. Internal synchronous-rectifier ground connection. Connect all PGND
pins together at power ground plane.
Shutdown Control Input. Pull SHDN low to turn off PWM control and ITEC output.
Current-Control Loop Compensation. See the Compensation Capacitor section.
TEC Current-Monitor Output. The ITEC output voltage is a function of the voltage across
5
B1
ITEC
the TEC current-sense resistor. V ITEC = V REF + 8 (V OS - V CS ). Keep capacitance on ITEC
< 150pF.
Maximum Negative TEC Current. Connect MAXIN to REF to set default negative current
6
A1
MAXIN
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 ).
Maximum Positive TEC Current. Connect MAXIP to REF to set default positive current limit
7
A2
MAXIP
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 ).
Maximum Bipolar TEC Voltage. Connect MAXV to REF to set default maximum TEC
8
A3
MAXV
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.
8
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相关代理商/技术参数 |
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|---|---|
| MAX8521EVKIT | 制造商:Maxim Integrated Products 功能描述:SMALLEST TEC POWER DRIVERS FOR OPTICAL MODULE - Bulk |
| MAX8521EWX+ | 制造商:Maxim Integrated Products 功能描述:SMALLEST TEC POWER DRIVERS FOR OPTICAL MODULES - Rail/Tube |
| MAX8521EWX+T | 功能描述:其他电源管理 TEC Power Driver for Optical Modules RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| MAX8523EEE | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX8523EEE+ | 功能描述:功率驱动器IC Gate Driver RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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