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PDF RT9403F Data sheet ( Hoja de datos )
| Número de pieza | RT9403F | |
| Descripción | High Precision Reference Voltage Generator | |
| Fabricantes | Richtek Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RT9403F (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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RT9403D/E/F/G
I2C Programmable High Precision Reference Voltage Generator
General Description
The RT9403D/E/F/G is a high precision reference voltage
generating console consisting of three I2C programmable
DACs. Each DAC output voltage is controlled by 7 digital
bits that are programmed by the I2C interface. The
RT9403D/E/F/G features adjustable output slew rate, low
switching glitch and adequate driving capability. The
RT9403D/E/F/G is available in SOT-23-8 package.
Ordering Information
RT9403D/E/F/G
Package Type
V8 : SOT-23-8
Lead Plating System
G : Green
(Halogen Free and Pb Free)
Address Bit [A1,A0]
D : [0,0]
E : [0,1]
F : [1,0]
G : [1,1]
Note :
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
Pin Configurations
(TOP VIEW)
Features
z 5V Supply Voltage
z Provide 3 Precise Voltage DACs
z I2C Programmable 128-Steps Output Voltage
z Output Range and Resolution
` DAC1 & DAC2 : 0.6V to 2.1875V, 12.5mV/Step
` DAC3 : 1.2V to 3.375V, 12.5mV (or 25mV)/Step for
Different Segments
z High Output Accuracy Up to 1% (VOUT ≥ 1V)
z Low External Component Count
z Small Footprint SOT-23-8 Package
z RoHS Compliant and Halogen Free
Applications
z Power Supply Adjustment for Motherboard and Graphic
Card
z Low Voltage, High Accuracy Reference Voltage Circuit
Marking Information
RT9403DGV8
07=DNN
07= : Product Code
DNN : Date Code
RT9403EGV8
08=DNN
08= : Product Code
DNN : Date Code
87 6 5
2 34
SOT-23-8
RT9403FGV8
11=DNN
11= : Product Code
DNN : Date Code
RT9403GGV8
10=DNN
10= : Product Code
DNN : Date Code
DS9403D/E/F/G-00 September 2011
www.richtek.com
1
1 page  
SVID6
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
S VI D5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
RT9403D/E/F/G
SVI D4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Table 1. DAC1/DAC2 Serial Code Table
S VI D3
SVI D2
SVI D1
SVID0
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0000
0001
0010
0011
0100
0101
0110
0111
Output Voltage ( V )
1.1 875
1.1 750
1.1 625
1.1 500
1.1 375
1.1 250
1 .112 5
1.1 000
1.0 875
1.0 750
1.0 625
1.0 500
1.0 375
1.0 250
1.0 125
1.0 000
0.9 875
0.9 750
0.9 625
0.9 500
0.9 375
0.9 250
0.9 125
0.9 000
0.8 875
0.8 750
0.8 625
0.8 500
0.8 375
0.8 250
0.8 125
0.8 000
0.7 875
0.7 750
0.7 625
0.7 500
0.7 375
0.7 250
0.7 125
0.7 000
To be continued
DS9403D/E/F/G-00 September 2011
www.richtek.com
5
5 Page 
RT9403D/E/F/G
Absolute Maximum Ratings (Note 1)
z Supply Voltage, VDD ------------------------------------------------------------------------------------------------------ 6.5V
z Input Voltage, SCL, SDA, S3/EN -------------------------------------------------------------------------------------- 6.5V
z Output Voltage, VOUT1, VOUT2, VOUT3 --------------------------------------------------------------------------------------------------------------------- 4V
z Power Dissipation, PD @ TA = 25°C
SOT-23-8 -------------------------------------------------------------------------------------------------------------------- 0.4W
z Package Thermal Resistance (Note 2)
SOT-23-8, θJA --------------------------------------------------------------------------------------------------------------- 250°C/W
z Junction Temperature ----------------------------------------------------------------------------------------------------- 150°C
z Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------------- 260°C
z Storage Temperature Range -------------------------------------------------------------------------------------------- −65°C to 150°C
z ESD Susceptibility (Note 3)
HBM (Human Body Mode) ---------------------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------------------ 200V
Recommended Operating Conditions (Note 4)
z Supply Voltage, VDD ------------------------------------------------------------------------------------------------------ 5V ± 5%
z Junction Temperature Range -------------------------------------------------------------------------------------------- −40°C to 125°C
z Ambient Temperature Range -------------------------------------------------------------------------------------------- −40°C to 85°C
Electrical Characteristics
(VDD = 5V, TA = 25°C, unless otherwise specification)
Parameter
Symbol
Test Conditions
Supply Input Voltage
VDD
POR Threshold
VPOR_TH
POR Hysteresis
VPOR_HYS
Supply Input Current
VREF & DAC
DAC Output Accuracy
Under Voltage Lockout
Hysteresis
Output Buffer
IVDD
VOUT ≥ 1V, IOUT = 0A
VOUT < 1V, IOUT = 0A
DC Gain
Capacitive Load Only
Bandwidth
Slew Rate
Impedance
Output Driving Capability
Loading Effect Regulation
I2C Signal
GBW
SR
ROUT
IOUT
CL = 1nF
CL = 0.1μF
Input High Threshold
Input Low Threshold
SCL Clock Speed
VIH
VIL
EN Threshold Logic-High VEN_H
Voltage
Logic-Low VEN_L
Min
4.75
4
--
--
−1
−10
Typ Max Unit
5 5.25 V
4.25 4.4
V
250 --
mV
0.65 --
mA
-- 1 %
-- 10 mV
--
--
--
--
--
−0.002
70 -- dB
1.64 -- MHz
11 -- mV/μs
90 --
Ω
1.1 -- mA
-- 0.002 %/μA
2.4
--
--
VDD − 0.3
--
--
--
--
--
--
-- V
0.8 V
400 k/bit/s
--
V
0.3
DS9403D/E/F/G-00 September 2011
www.richtek.com
11
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet RT9403F.PDF ] | |
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