Datasheet > LTC6991HS6PBF

LTC6991HS6PBF

更新时间： 2024-10-03 11:55:47

品牌	Logo	应用领域
凌特 - Linear		振荡器
页数	文件大小	规格书
24页	327K
描述
TimerBlox: Resettable, Low Frequency Oscillator

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LTC6991HS6PBF 数据手册

LTC6991

TimerBlox: Resettable, Low

Frequency Oscillator

FeaTures

DescripTion

The LTC^®6991 is a silicon oscillator with a programmable

periodrangeof1.024msto9.54hours(29.1µHzto977Hz),

specifically intended for long duration timing events. The

LTC6991 is part of the TimerBlox™ family of versatile

silicon timing devices.

Period Range: 1ms to 9.5 Hours

Configured with 1 to 3 Resistors

<1.5% Maximum Frequency Error

Output Reset Function

2.25V to 5.5V Single Supply Operation

55µA to 80µA Supply Current

A single resistor, R , programs the LTC6991’s internal

SET

(2ms to 9.5hr Clock Period)

master oscillator frequency. The output clock period

500µs Start-Up Time

is determined by this master oscillator and an internal

CMOS Output Driver Sources/Sinks 20mA

frequency divider, N , programmable to eight settings

DIV

–40°C to 125°C Operating Temperature Range

from 1 to 2 .

Available in Low Profile (1mm) SOT-23 (ThinSOT™)

N_DIV•R_SET

and 2mm × 3mm DFN Packages

t_OUT

•1.024ms, N_DIV=1,8,64,...,2²¹

50kΩ

applicaTions

In normal operation, the LTC6991 oscillates with a 50%

duty cycle. A reset function is provided to truncate the

pulse (reducing the duty cycle). The reset pin can also be

used to prevent the output from oscillating.

“Heartbeat” Timers

Watchdog Timers

Intervalometers

Periodic “Wake-Up” Call

High Vibration, High Acceleration Environments

Portable and Battery-Powered Equipment

The RST and OUT pins can be configured for active-low

or active-high operation using a polarity function.

POL BIT

RST PIN

OUTPUT STATE

Oscillating

0 (reset)

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

ThinSOT and TimerBlox are trademarks of Linear Technology Corporation. All other trademarks

are the property of their respective owners.

1 (reset)

Oscillating

The LTC6991 is available in the 6-lead SOT-23 (ThinSOT)

package or a 6-lead 2mm × 3mm DFN.

Clock Period Range over Eight Divider Settings

10Hr

Typical applicaTion

Low Frequency Pulse Generator

1Hr

10Min

1µs PULSE WIDTH

OUT

60 SECONDS

1Min

2.26k

10Sec

RST

GND

SET

OUT

6991 TA01a

LTC6991

1Sec

100ms

10ms

1ms

2.25V TO 5.5V

470pF

0.1µF

SET

715k

DIV

392k

1.25

DIV PIN VOLTAGE, V (V)

0.625

1.875

2.5

6991 TA01b

≈ R • C ≈ 1µs

PW PW

DIV

PULSE

6991f

ꢀ

12 3 4 5 6 7...24

中文翻译

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与LTC6991HS6PBF相关器件

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LTC6991IDCBPBF	Linear	获取价格	TimerBlox: Resettable, Low Frequency Oscillator
LTC6991IS6#TRMPBF	Linear	获取价格	LTC6991 - TimerBlox: Resettable, Low Frequency Oscillator; Package: SOT; Pins: 6; Temperat
LTC6991IS6PBF	Linear	获取价格	TimerBlox: Resettable, Low Frequency Oscillator
LTC6992	Linear	获取价格	TimerBlox: Long Timer, Low Frequency Oscillator
LTC6992-1	Linear	获取价格	TimerBlox Voltage-Controlled Pulse Width Modulator (PWM)
LTC6992-1	ADI	获取价格	TimerBlox : 电压控制型脉宽调制器 (PWM)
LTC6992-1_15	Linear	获取价格	Voltage-Controlled Pulse Width Modulator
LTC6992-2	Linear	获取价格	TimerBlox Voltage-Controlled Pulse Width Modulator (PWM)
LTC6992-2_15	Linear	获取价格	Voltage-Controlled Pulse Width Modulator
LTC6992-3	Linear	获取价格	TimerBlox Voltage-Controlled Pulse Width Modulator (PWM)

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