- 您現在的位置：買賣IC網 > PDF目錄384702 > MAX769EEI (MAXIM INTEGRATED PRODUCTS INC) 2 or 3-Cell, Step-Up/Down, Two-Way Pager System IC PDF資料下載
參數資料
| 型號： | MAX769EEI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 通信及網絡 |
| 英文描述： | 2 or 3-Cell, Step-Up/Down, Two-Way Pager System IC |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO28 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, QSOP-28 |
| 文件頁數： | 1/16頁 |
| 文件大?。?/td> | 161K |
| 代理商： | MAX769EEI |
________________General Desc ription
The MAX769 is a complete buck/boost power supply
and monitoring system for two-way pagers or other low-
power digital communications devices. Few external
components are required. Included on-chip are:
An 80mA output, synchronous-rectified, buck/boost
DC-DC converter with a digitally controlled +1.8V to
+4.9V output. The DC-DC converter is unique, since
it provides a regulated output for battery inputs that
are both less than and greater than the output volt-
age, without using transformers.
Three low-noise linear-regulator outputs
Three DAC-controlled comparators for software-
driven, 3-channel A/D conversion
SPI-compatible serial interface
Reset and low-battery (LBO) warning outputs
Charger for NiCd/NiMH, lithium battery, or storage
capacitor for RF PA power or system backup
Two 1.8
(typical), serial-controlled, open-drain
MOSFET switches for beeper or vibrator drive
An evaluation kit for the MAX769 (MAX769EVKIT) is
available to aid in design and prototyping.
____________________________Features
o
Regulated Step-Up/Step-Down Operation
o
80mA Output from 3 Cells
o
85% Efficiency
o
13μA Idle Mode (coast) Current
o
Selectable Low-Noise PWM or Low-Current PFM
Operation
o
PWM Operating Frequency Synchronized to
Seven Times an External Clock Source
o
Operates at 270kHz with No External Clock
o
Automatic Backup-Battery Switchover
________________________Applic ations
Two-Way Pagers
GPS Receivers
2 or 3-Cell Powered, Hand-Held Equipment
M
2 or 3-Cell, S tep-Up/Down,
Two-Way Pager S ystem IC
________________________________________________________________ Maxim Integrated Products
1
MAX769
INPUT
2 OR 3 AA ALKALINE BATTERIES
1.5V TO5.5V
BATT
LX2
OUT
PGND
REG2IN
OFS
REG2
OUTPUT 2
2.85V ANALOG
LOW-BATTERY
IN/OUT
REJECT
IN/OUT
SERIAL
I/O
1.8
DRIVERS
A/D
INPUT
OPTIONAL
OUTPUT 1
3V LOGIC
OUTPUT 3
1V RECEIVER
TORF PA
NiCd
BATTERY OR
STACK
REG1
REG3
NICD
AGND
REF
FILT
LBI
LBO
RSIN
RSO
CS
SCL
SD1
SD03
DR1
DR2
DR2IN
DRGND
CH0
SYNC
LX1
STORAGE
CAPACITOR
___________________________________________________Typic al Operating Circ uit
19-4771; Rev 1; 10/98
EVALUATION KIT MANUAL
PART
MAX769EEI
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
28 QSOP
Ordering Information
Idle Mode is a trademark of Maxim Integrated Products. SPI is a trademark of Motorola, Inc.
Pin Configuration appears at end of data sheet.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
FOLLOWS DATA SHEET
相關PDF資料 |
PDF描述 |
|---|---|
| MAX769 | Dual J-K Negative-Edge-Triggered Flip-Flops With Preset And Clear 16-CDIP -55 to 125 |
| MAX782REBX | Triple-Output Power-Supply Controller for Notebook Computers |
| MAX782 | Triple-Output Power-Supply Controller for Notebook Computers |
| MAX782EBX | Quadruple 2-Input Positive-NAND Gates With Open-Collector Output 14-CFP -55 to 125 |
| MAX782SEBX | Triple-Output Power-Supply Controller for Notebook Computers |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX769EEI+ | 功能描述:PMIC 解決方案 2-3 Cell Step-Up/Dwn 2-Way Pgr System IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX769EEI+T | 功能描述:PMIC 解決方案 2-3 Cell Step-Up/Dwn 2-Way Pgr System IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX769EEI-T | 功能描述:PMIC 解決方案 2-3 Cell Step-Up/Dwn 2-Way Pgr System IC RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX769EVKIT | 功能描述:電源管理IC開發工具 Evaluation Kit for the MAX769 RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX7705CPA | 功能描述:監控電路 RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
發布緊急采購，3分鐘左右您將得到回復。