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MAX15061

更新时间： 2024-09-12 11:18:31
品牌 Logo 应用领域
美信 - MAXIM 转换器光电二极管
页数 文件大小 规格书
16页 405K
描述
80V, 300mW Boost Converter and Current Monitor for APD Bias Applications

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MAX15061 数据手册

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19-5034; Rev 0; 10/09  
80V, 300mW Boost Converter and Current  
Monitor for APD Bias Applications  
MAX5061  
General Description  
Features  
o Input Voltage Range  
The MAX15061 consists of a constant-frequency pulse-  
width modulating (PWM) step-up DC-DC converter with  
an internal switch and a high-side current monitor with  
high-speed adjustable current limiting. This device can  
generate output voltages up to 76V and provides current  
monitoring up to 4mA (up to 300mW). The MAX15061  
can be used for a wide variety of applications such as  
avalanche photodiode biasing, PIN biasing, or varactor  
biasing, and LCD displays. The MAX15061 operates  
from 2.7V to 11V.  
+2.7V to +5.5V (Using Internal Charge Pump) or  
+5.5V to +11V  
o Wide Output-Voltage Range from (V + 1V) to 76V  
IN  
o Internal 1Ω (typ) 80V Switch  
o 300mW Boost Converter Output Power  
o Accurate 10ꢀ (500nA to 1mA) and 3.5ꢀ (1mA  
to 4mA) High-Side Current Monitor  
o Resistor-Adjustable Ultra-Fast APD Current Limit  
The constant-frequency (400kHz), current-mode PWM  
architecture provides low-noise output voltage that is  
easy to filter. A high-voltage, internal power switch  
allows this device to boost output voltages up to 76V.  
Internal soft-start circuitry limits the input current when  
the boost converter starts. The MAX15061 features a  
shutdown mode to save power.  
(1µs Response Time)  
o Open-Drain Current-Limit Indicator Flag  
o 400kHz Fixed Switching Frequency  
o Constant PWM Frequency Provides Easy Filtering  
in Low-Noise Applications  
o Internal Soft-Start  
The MAX15061 includes a current monitor with more  
than three decades of dynamic range and monitors cur-  
rent ranging from 500nA to 2mA with high accuracy.  
Resistor-adjustable current limiting protects the APD  
from optical power transients. A clamp diode protects  
the monitor’s output from overvoltage conditions. Other  
protection features include cycle-by-cycle current limit-  
ing of the boost converter switch, undervoltage lockout,  
and thermal shutdown if the die temperature reaches  
+160°C.  
o 2µA (max) Shutdown Current  
o -40°C to +125°C Temperature Range  
o Small Thermally Enhanced, 4mm x 4mm, 16-Pin  
TQFN Package  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
MAX15061ATE+  
-40°C to +125°C  
16 TQFN-EP*  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed pad.  
The MAX15061 is available in a thermally enhanced  
4mm x 4mm, 16-pin TQFN package and operates over  
the -40°C to +125°C automotive temperature range.  
Pin Configuration  
Applications  
TOP VIEW  
Avalanche Photodiode Biasing and Monitoring  
PIN Diode Bias Supplies  
Low-Noise Varactor Diode Bias Supplies  
FBON Modules  
12  
11  
10  
9
ILIM  
8
7
6
5
BIAS 13  
SHDN 14  
GPON Modules  
CNTRL  
FB  
LCD Displays  
MAX15061  
PGND  
LX  
15  
16  
*EP  
SGND  
+
Typical Operating Circuits appear at end of data sheet.  
1
2
3
4
THIN QFN  
(4mm × 4mm)  
*CONNECT EXPOSED PAD TO SGND.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
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