RT9246AGC 데이터 시트보기 (PDF) - Richtek Technology
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RT9246AGC Datasheet PDF : 16 Pages
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RT9246A
Absolute Maximum Ratings (Note 1)
z Supply Voltage, VCC ------------------------------------------------------------------------------------------- 7V
z Input, Output or I/O Voltage ---------------------------------------------------------------------------------- GND-0.3V to VCC+0.3V
z Power Dissipation, PD @ TA = 25°C
TSSOP-28 ------------------------------------------------------------------------------------------------------ 1W
z Package Thermal Resistance (Note 4)
TSSOP-28, θJA -------------------------------------------------------------------------------------------------- 100°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 2)
HBM (Human Body Mode) ----------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------- 200V
Recommended Operating Conditions (Note 3)
z Supply Voltage, VCC ------------------------------------------------------------------------------------------- 5V ± 10%
z Ambient Temperature Range --------------------------------------------------------------------------------- 0°C to 70°C
z Junction Temperature Range --------------------------------------------------------------------------------- 0°C to 125°C
Electrical Characteristics
(VCC = 5V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Units
VCC Supply Current
Nominal Supply Current
Power-On Reset
POR Threshold
Hysteresis
VDVD Threshold
Input High
Input Low
Oscillator
Free Running Frequency
Frequency Adjustable Range
Ramp Amplitude
Ramp Valley
Maximum On-Time of Each Channel
RT Pin Voltage
Reference and DAC
ICC
PWM 1,2,3 Open
VCCRTH
VCCHYS
VDVDTH
VDVDHYS
VCC Rising
Enable
fOSC
fOSC_ADJ
ΔVOSC
VRV
RRT = 20kΩ
RRT = 20kΩ
VRT
RRT = 20kΩ
--
12
--
mA
4.0
4.2
4.5
V
0.2
0.5
--
V
0.9
1.0
1.1
V
--
60
--
mV
170 200 230 kHz
50
--
400 kHz
--
1.9
--
V
--
1.0
--
V
62
66
75
%
0.9
1.0
1.1
V
DACOUT Voltage Accuracy
DAC (VID0-VID4) Input Low
DAC (VID0-VID4) Input High
www.richtek.com
6
ΔVDAC
ΔVILDAC
ΔVIHDAC
VDAC ≥ 1V
VDAC < 1V
−1
--
+1
%
−10
--
+10 mV
--
--
0.8
V
1.2
--
--
V
To be continued
DS9246A-04 March 2007
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