参数资料
型号: MAX15031EVKIT+
厂商: Maxim Integrated Products
文件页数: 1/17页
文件大小: 0K
描述: KIT EVALUATION FOR MAX15031
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
主要目的: DC/DC,步升
输出及类型: 1,非隔离
输出电压: 70V
电流 - 输出: 4mA
输入电压: 2.9 ~ 5.5 V
稳压器拓扑结构: 升压
频率 - 开关: 400kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: MAX15031
ATION
EVALU
AVAILA
19-4299; Rev 2; 6/09
KIT
BLE
80V, 300mW Boost Converter and Current
Monitor for APD Bias Applications
General Description
The MAX15031 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 MAX15031
can be used for a wide variety of applications such as
avalanche photodiode biasing, PIN biasing, or varactor
biasing, and LCD displays. The MAX15031 operates
from 2.7V to 11V.
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 MAX15031 features a
shutdown mode to save power.
The MAX15031 includes a current monitor with more
than three decades of dynamic range and monitors cur-
rent 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,
Features
? Input Voltage Range
+2.7V to +5.5V (Using Internal Charge Pump) or
+5.5V to +11V
? Wide Output-Voltage Range from (V IN + 1V) to 76V
? Internal 1 Ω (typ) 80V Switch
? 300mW Boost Converter Output Power
? Accurate ±10% (500nA to 1mA) and ±3.5% (1mA
to 4mA) 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
? -40°C to +125°C Temperature Range
? Small Thermally Enhanced, 4mm x 4mm, 16-Pin
TQFN Package
Ordering Information
and thermal shutdown if the die temperature reaches
+160°C.
PART
MAX15031ATE+
TEMP RANGE
-40°C to +125°C
PIN-PACKAGE
16 TQFN-EP*
The MAX15031 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.
Applications
Avalanche Photodiode Biasing and Monitoring
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Pin Configuration
TOP VIEW
PIN Diode Bias Supplies
12
11
10
9
Low-Noise Varactor Diode Bias Supplies
FBON Modules
GPON Modules
BIAS 13
SHDN 14
8
7
ILIM
CNTRL
LCD Displays
PGND 15
MAX15031
6
FB
LX 16
+
*EP
5
SGND
Typical Operating Circuits appear at end of data sheet.
1
2
3
4
*EXPOSED PAD
THIN QFN
(4mm × 4mm)
________________________________________________________________ Maxim Integrated Products
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.
1
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