MAX15059EVKIT+ Maxim Integrated Products, MAX15059EVKIT+ Datasheet

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MAX15059EVKIT+

Manufacturer Part Number
MAX15059EVKIT+
Description
EVAL KIT FOR MAX15059
Manufacturer
Maxim Integrated Products
Datasheets

Specifications of MAX15059EVKIT+

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-5132; Rev 3; 11/10
The MAX15059 constant-frequency pulse-width modu-
lating (PWM) step-up DC-DC converter features an
internal switch and a high-side current monitor with high-
speed adjustable current limiting. This device is capable
of generating output voltages up to 76V (300mW for
the MAX15059A and 200mW for the MAX15059B) and
provides current monitoring up to 4mA. The MAX15059
operates from 2.8V to 5.5V.
The constant-frequency (400kHz) current-mode PWM
architecture provides low-noise-output voltage that is
easy to filter. A high-voltage internal power MOSFET
allows this device to boost output voltages up to 76V.
Internal soft-start circuitry limits the input current when
the boost converter starts. The MAX15059 features a
shutdown mode to save power.
The MAX15059 includes a current monitor with more
than three decades of dynamic range and monitors
current ranging from 500nA to 4mA 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
(UVLO), and thermal shutdown if the die temperature
reaches +125NC.
The MAX15059 is available in a thermally enhanced,
lead-free, 16-pin TQFN-EP package and operates over
the -40NC to +125NC temperature range.
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.
V
TO 5.5V
IN
2.87kI
= 2.8V
R
LIM
CNTRL
RLIM
SGND
IN
76V, 300mW Boost Converter and Current
Typical Operating Circuit
MAX15059
4.7µH
C
1µF
L1
_______________________________________________________________ Maxim Integrated Products 1
IN
APD
APD
LX
MOUT
General Description
PGND
BIAS
FB
SHDN
ILIM
CLAMP
TIA
D1
0.1µF
C
R
OUT
MOUT
V
1kI
DD
Monitor for APD Bias Applications
C
OPTIONAL
(10nF)
V
OUT
MOUT
R2
348kI
R1
6.34kI
GPIO
GPIO
V
R
DD
ADJ
(76V MAX)
ADC
DAC
µC
S
S
S
S
S
S
S
S
S
S
S
S
S
S
Note: The MAX15059AATE+ and MAX15059BATE+ operate over
the -40°C to +125°C temperature range. The MAX15059EATE+
and MAX15059BETE+ operate over the -40°C to +85°C tem-
perature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
MAX15059AETE+
MAX15059BETE+
MAX15059AATE+
MAX15059BATE+
Input Voltage Range: +2.8V to +5.5V
Wide Output-Voltage Range from (V
Internal 1I (typ) 80V MOSFET
Boost Converter Output Power: 300mW
200mW Version Available for Smaller Inductor
Accurate ±5% (1:1 and 5:1) High-Side Current
Monitor
Resistor-Adjustable Ultra-Fast APD Current Limit
(1µs Response Time)
Open-Drain Current-Limit Indicator Flag
400kHz Fixed-Switching Frequency
Constant PWM Frequency Provides Easy Filtering
in Low-Noise Applications
Internal Soft-Start
2µA (max) Shutdown Current
-40NC to +125NC Temperature Range
Small, Thermally Enhanced, 3mm x 3mm, Lead-
Free, 16-Pin TQFN-EP Package
Avalanche Photodiode Biasing and Monitoring
PIN Diode Bias Supply
Low-Noise Varactor Diode Bias Supply
FBON Modules
GPON Modules
PART
MAXIMUM
Ordering Information
POWER
(mW)
300
200
300
200
I
I
MOUT
APD
Applications
1:1
5:1
1:1
5:1
:
IN
Features
16 TQFN-EP*
16 TQFN-EP*
16 TQFN-EP*
16 TQFN-EP*
+ 5V) to 76V
PIN-
PACKAGE

Related parts for MAX15059EVKIT+

MAX15059EVKIT+ Summary of contents

Page 1

... SGND APD MOUT R MOUT APD 1kI TIA _______________________________________________________________ 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. Input Voltage Range: +2.8V to +5.5V S Wide Output-Voltage Range from (V S Internal 1I (typ) 80V MOSFET ...

Page 2

Boost Converter and Current Monitor for APD Bias Applications ABSOLUTE MAXIMUM RATINGS IN, SHDN, FB, ILIM, RLIM, CNTRL to SGND ..........-0. PGND ...........................................................-0.3V to +80V BIAS to SGND ......................................................-0.3V to +79V APD, CLAMP to ...

Page 3

Boost Converter and Current Monitor for APD Bias Applications ELECTRICAL CHARACTERISTICS (continued 3.3V 1FF SHDN CNTRL -40NC to +85NC for the MAX15059AETE+ and ...

Page 4

Boost Converter and Current Monitor for APD Bias Applications ELECTRICAL CHARACTERISTICS (continued 3.3V 1FF SHDN CNTRL -40NC to +85NC for the MAX15059AETE+ and ...

Page 5

Boost Converter and Current Monitor for APD Bias Applications (V = 3.3V 70V +25°C, unless otherwise noted.) IN OUT A EXITING SHUTDOWN 1ms/div LIGHT-LOAD SWITCHING WAVEFORMS WITH RC FILTER 1 µ s/div LOAD-TRANSIENT RESPONSE ...

Page 6

Boost Converter and Current Monitor for APD Bias Applications (V = 3.3V 70V +25°C, unless otherwise noted.) IN OUT A LX LEAKAGE CURRENT vs. TEMPERATURE 100 CURRENT INTO LX PINS 70V ...

Page 7

Boost Converter and Current Monitor for APD Bias Applications (V = 3.3V 70V +25°C, unless otherwise noted.) IN OUT A GAIN ERROR vs. APD CURRENT (MAX15059A 70V BIAS ...

Page 8

Boost Converter and Current Monitor for APD Bias Applications (V = 3.3V 70V +25°C, unless otherwise noted.) IN OUT A STARTUP DELAY 2ms/div STARTUP DELAY 200µs/div SHORT-CIRCUIT RESPONSE R 2 µ s/div 8 ______________________________________________________________________________________ ...

Page 9

Boost Converter and Current Monitor for APD Bias Applications (V = 3.3V 70V +25°C, unless otherwise noted.) IN OUT A SWITCHING FREQUENCY vs. TEMPERATURE 405 404 403 402 401 400 399 398 397 396 ...

Page 10

Boost Converter and Current Monitor for APD Bias Applications TOP VIEW PIN NAME Power Ground. Connect the negative terminals of the input and output capacitors to PGND. Connect 1, 16 PGND PGND externally to SGND at a single ...

Page 11

Boost Converter and Current Monitor for APD Bias Applications PIN NAME 12 APD Reference Current Output. APD provides the source current to the cathode of the photodiode. Bias-Voltage Input. Connect BIAS to the boost converter output (V OUT ...

Page 12

Boost Converter and Current Monitor for APD Bias Applications Detailed Description The MAX15059 constant-frequency, current-mode, PWM boost converters are intended for low-voltage systems that require a locally generated high voltage. This device is capable of generating a low-noise, ...

Page 13

Boost Converter and Current Monitor for APD Bias Applications Design Procedure Setting the Output Voltage Set the MAX15059 output voltage by connecting a resis- tive divider from the output SGND (Figure 1). (FB to SGND ...

Page 14

Boost Converter and Current Monitor for APD Bias Applications The MAX15059’s high switching frequency demands a high-speed rectifier. Schottky diodes are recommended for most applications because of their fast recovery time and low forward-voltage drop. Ensure that the ...

Page 15

Boost Converter and Current Monitor for APD Bias Applications Applications Information Using APD or PIN Photodiodes in Fiber Applications When using the MAX15059 to monitor APD or PIN photo- diode currents in fiber applications, several issues must be ...

Page 16

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 16 2010 Maxim Integrated Products © ...

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