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PDF ( 数据手册 , 数据表 ) DS1052

零件编号 DS1052
描述 5-Bit / Programmable / 100kHz Pulse-Width Modulator
制造商 Dallas Semiconducotr
LOGO Dallas Semiconducotr LOGO 


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DS1052 数据手册, 描述, 功能
www.maxim-ic.com
DS1052
5-Bit, Programmable, 100kHz
Pulse-Width Modulator
FEATURES
§ Single 5-bit, programmable, pulse-width
modulator (PWM)
§ Adjustable Duty Cycle: 0% to 100%
§ 2.7V to 5.5V Operation
§ Standard Frequency Value: 100kHz
§ 2-Wire Addressable Interface
§ Packages: 8-Pin (150-mil) SOIC and 8-Pin
(118-mil) mSOP
§ Operating Temperature: -40oC to +85oC
ORDERING INFORMATION
DS1052Z-100
100kHz 8-Pin 150-mil SOIC
DS1052U-100 100kHz 8-Pin 118-mil mSOP
PIN ASSIGNMENT
SCL 1
8 VCC
SDA
2
7 A1
A0 3
6 A2
GND
4
5 PWMo
8-Pin 150-mil SOIC
8-Pin 118-mil mSOP
PIN DESCRIPTION
VCC
PWMO
A0, A1, A2
- 2.7V to 5.5V Power Supply
- PWM Ouput
- Device Address
SDA
- Serial Data I/O
SCL - Serial Clock Input
GND
- Ground
DESCRIPTION
The DS1052 is a programmable, 5-bit, pulse-width modulator featuring a 2-wire addressable controlled
interface. The DS1052 operates from power supplies ranging from 2.7V up to 5.5V. The PWM output
provides a signal that swings from 0V to VCC.
The DS1052-100 requires a typical operating current of 100µA and a programmable shutdown supply
current of 1µA.
One standard PWM output frequency is offered: 100kHz. The 2-wire addressable interface allows
operation of multiple devices on a single 2-wire bus and provides compatibility with other Dallas
Semiconductor 2-wire devices such as real-time clocks (RTCs), digital thermometers, and digital
potentiometers.
The device is ideal for low-cost LCD contrast and/or brightness control, power supply voltage
adjustment, and battery charging or current adjustment. The DS1052 is offered in standard integrated
circuit packaging, including the 8-pin (150-mil) SOIC and space-saving 8-pin (118-mil) mSOP.
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DS1052 pdf, 数据表
AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL CONDITION
SCL Clock
Frequency
fSCL Fast Mode
Standard Mode
Bus Free Time
Between STOP and
tBUF Fast Mode
Standard Mode
START Condition
Hold Time
(Repeated) START
tHD:STA
Fast Mode
Standard Mode
Condition
Low Period of SCL
Clock
tLOW
Fast Mode
Standard Mode
High Period of SCL
Clock
tHIGH
Fast Mode
Standard Mode
Data Hold Time
tHD:DAT
Fast Mode
Standard Mode
Data Set-Up Time
tSU:DAT
Fast Mode
Standard Mode
Rise Time of Both
SDA and SCL
tR Fast Mode
Standard Mode
Signals
Fall Time of Both
SDA and SCL
tF Fast Mode
Standard Mode
Signals
Set-Up Time for
STOP Condition
tSU:STO
Fast Mode
Standard Mode
Capacitive Load for
CB
Fast Mode
Each Bus Line
Standard Mode
PWM Output
Change
tPWMo
Fast Mode
Standard Mode
DS1052
(-40°C to +85°C; VCC = 2.7V to 5.5V)
MIN TYP MAX UNITS NOTES
0
400 kHz
6
0 100
1.3 ms 6
4.7
0.6 ms 7, 6
4.0
1.3
4.7
0.6
4.0
0
0
100
250
20+0.1CB
0.9
300
1000
ms 6
ms 6
ms 6, 8, 9
ns 6
ns 10
20+0.1CB
300 ns 10
300
0.6 ms
4.0
400 pF 10
2 periods 11
AC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL CONDITION
Output Frequency
Tolerance
Output Impedance
Absolute Linearity
Relative Linearity
Resolution
Frequency
Temperature
Coefficient
Frequency Voltage
Coefficient
(-40°C to +85°C; VCC = 2.7V to 5.5V)
MIN TYP MAX UNITS NOTES
-20 +20 % 12
-0.5
-0.25
5
±200
200
+0.5
+0.25
W
LSB 14
LSB 15
Bits 13
ppm/ºC
1.5 % per V
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