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參數(shù)資料
| 型號： | MAX1932ETC |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Digitally Controlled, 0.5% Accurate, Safest APD Bias Supply |
| 中文描述： | SWITCHING CONTROLLER, 360 kHz SWITCHING FREQ-MAX, QCC12 |
| 封裝： | 4 X 4 MM, 0.80 MM PITCH, TQFN-12 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 399K |
| 代理商： | MAX1932ETC |
General Description
The MAX1932 generates a low-noise, high-voltage output
to bias avalanche photodiodes (APDs) in optical
receivers. Very low output ripple and noise is achieved by
a constant-frequency, pulse-width modulated (PWM)
boost topology combined with a unique architecture that
maintains regulation with an optional RC or LC post filter
inside its feedback loop. A precision reference and error
amplifier maintain 0.5% output voltage accuracy.
The MAX1932 protects expensive APDs against adverse
operating conditions while providing optimal bias.
Traditional boost converters measure switch current for
protection, whereas the MAX1932 integrates accurate
high-side current limiting to protect APDs under
avalanche conditions. A current-limit flag allows easy cali-
bration of the APD operating point by indicating the pre-
cise point of avalanche breakdown. The MAX1932 control
scheme prevents output overshoot and undershoot to
provide safe APD operation without data loss.
The output voltage can be accurately set with either
external resistors, an internal 8-bit DAC, an external
DAC, or other voltage source. Output span and offset
are independently settable with external resistors. This
optimizes the utilization of DAC resolution for applica-
tions that may require limited output voltage range, such
as 4.5V to 15V, 4.5V to 45V, 20V to 60V, or 40V to 90V.
Applications
Optical Receivers and Modules
Fiber Optic Network Equipment
Telecom Equipment
Laser Range Finders
PIN Diode Bias Supply
Features
o
Small Circuit Footprint
o
Circuit Height < 2mm
o
2.7V to 5.5V Input
o
4.5V to 90V Output
o
No Overshoot
o
Accurate High-Side Current Limit
o
Avalanche Indicator Flag
o
8-Bit SPI-Compatible DAC
o
Compatible with External DAC
o
0.5% Accurate Output
o
Low Ripple Output (< 1mV)
o
Small 12-Pin, 4mm
4mm Thin QFN Package
M
Digitally Controlled, 0.5% Accurate, Safest APD
Bias Supply
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
TEMP RANGE
PIN-PACKAGE
-40°C to +85°C
12 Thin QFN
19-2555; Rev 1; 12/02
PART
MAX1932ETC
MAX1932
INPUT
2.7V TO 5.5V
APD BIAS OUTPUT
4.5V TO 90V
DAC INPUTS
AVALANCHE
INDICATOR
FLAG
VIN
COMP
SCLK
GND
FB
CS-
CS+
GATE
DACOUT
DIN
CS
CL
Typical Application Circuit
MAX1932
12
1
2
3
9
8
7
11
10
4
5
6
SCLK
GND
COMP
FB
C
C
D
G
V
DIN
CL
C
Pin Configuration
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1932ETC/GG8 | 功能描述:電流和電力監(jiān)控器、調(diào)節(jié)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| MAX1932ETC+ | 功能描述:其他電源管理 0.5% Accurate APD Bias Supply 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 |
| MAX1932ETC+ | 制造商:Maxim Integrated Products 功能描述:SUPPLY BIAS APD SMD 1932 TQFN12 制造商:Maxim Integrated Products 功能描述:SUPPLY BIAS, APD, SMD, 1932, TQFN12 |
| MAX1932ETC+T | 功能描述:其他電源管理 0.5% Accurate APD Bias Supply 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 |
| MAX1932ETC-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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