rt9238 ETC-unknow, rt9238 Datasheet - Page 5

• Manufacturer Part Number: rt9238
• Description: Vrm 8.5 Pwm And Triple Linear Power System Controller
• Manufacturer: ETC-unknow

Absolute Maximum Ratings
Recommended Operating Conditions
CAUTION:
Stresses beyond the ratings specified in “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress only rating and operation of the device at these or any other conditions above those
indicated in the operational sections of this specification is not implied.
Electrical Characteristics
(V
DS9238-01 July 2001
VCC Supply Current
Nominal Supply Current
Power-On Reset
VCC Rising Threshold
VCC Falling Threshold
Rising VAUX Threshold
VAUX Threshold Hysteresis
Rising V
DAC AND Band Gap Reference
DAC (VID25-VID3) Input Low Voltage
DAC(VID25-VID3) Input High Voltage
DACOUT Voltage Accuracy
Oscillator
Free Running Frequency
Ramp Amplitude
CC
Supply Voltage
FAULT/VID4 and GATE Voltage
Input, Output or I/O Voltage
Ambient Temperature Range
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec.)
Package Thermal Resistance
SOP-28, θ
Supply Voltage
Ambient Temperature Range
Junction Temperature Range
= 12V, PGND = 0V, T
OCSET1
JA
Parameter
Threshold
A
= 25°C, Unless otherwise specified.)
I
∆ V
CC
Symbol
OSC
Preliminary
UGATE1, LGATE1, DRIVE2,
DRIVE3, and DRIVE4 Open
V
V
V
V
VDAC + 40mV
OCSET1
OCSET1
OCSET1
OCSET1
Test Conditions
= 4.5V
= 4.5V
= 4.5V
= 4.5V
Min
180
6.5
-10
2.0
--
--
--
--
--
6
--
+15V
GND−0.3V ~ V
GND−0.3V ~ 7V
0°C ~ +70°C
0°C ~ +125°C
−65°C ~ +150°C
300°C
60°C/W
+12V±10%
0°C to 70°C
0°C to 125°C
1.25
Typ
200
1.5
0.2
1.9
www.richtek-ic.com.tw
10
--
--
--
--
--
RT9238
To be continued
Max
+20
225
9.5
0.8
--
--
--
--
--
--
9
CC
+0.3V
Units
V
KHz
mA
mV
V
V
V
V
V
V
V
P-P
5