RT9239 Просмотр технического описания (PDF) - Richtek Technology
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RT9239 Datasheet PDF : 6 Pages
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RT9239
Preliminary
Absolute Maximum Ratings
z Supply Voltage
z Input, Output or I/O Voltage
z Ambient Temperature Range
z Operating Junction Temperature Range
z Storage Temperature Range
z Package Thermal Resistance
SOP-14, θJA
z Lead Temperature (Soldering, 10 sec.)
15V
GND–0.3V to Vcc+0.3V
0°C to 70°C
0°C to 125°C
−65°C to 150°C
160°C/W
300°C
Electrical Characteristics
(VCC = 12V, GND = 0V, TA = 25°C, unless otherwise specified)
Parameter
Symbol Test Conditions
Min
VCC Supply Current
Nominal Supply Current
Power-On Reset
ICC
UGATE & LGATE Open --
VCC Rising Threshold
VCC Falling Threshold
Enable Input Threshold
Oscillator
VOCSET = 4.5V
--
VOCSET = 4.5V
--
VEN
0.2
Frequency
170
Ramp Amplitude
--
Internal Voltage Reference
Reference Voltage
PWM Controller Error Amplifier
VREF
1.225
DC Gain
--
PWM Controller Gate Driver
UGATE Source
UGATE Sink
LGATE Source
LGATE Sink
Protection
RUGATE IUGATE = 0.3A
--
RUGATE IUGATE = 0.3A
--
ILGATE VCC = 12V, VLGATE = 6V --
RLGATE ILGATE = 1V
--
OCSET Current Source
Soft-start Current
IOCSET VOCSET = 4.5V
170
ISS
VSS = 1.5V
--
Typ
3
9.5
7.5
--
200
1.9
1.250
65
8
6
500
5
200
10
Max
--
--
--
2.2
230
--
1.275
--
--
--
--
--
230
--
Units
mA
V
V
V
KHz
V
V
dB
Ω
Ω
mA
Ω
µA
µA
www.richtek-ic.com.tw
2
DS9239-00 June 2001
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