RT9202B
Absolute Maximum Ratings
l
l
l
l
(Note 1)
7V
15V
GND
−
0.3V to 7V
0.625W
160°C/W
0°C to +70°C
260°C
−
65°C to +150°C
l
l
l
l
l
Supply Input Voltage, V
CC
-----------------------------------------------------------------------------------------
BOOT & UGATE to GND --------------------------------------------------------------------------------------------
Input, Output or I/O Voltage ----------------------------------------------------------------------------------------
Power Dissipation, P
D
@ T
A
= 25°C
SOP-8 -------------------------------------------------------------------------------------------------------------------
Package Thermal Resistance (Note 4)
SOP-8,
θ
JA
--------------------------------------------------------------------------------------------------------------
Ambient Temperature Range ---------------------------------------------------------------------------------------
Lead Temperature (Soldering, 10 sec.)---------------------------------------------------------------------------
Storage Temperature Range ----------------------------------------------------------------------------------------
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ------------------------------------------------------------------------------------------ 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------------- 200V
(Note 3)
Recommended Operating Conditions
l
Junction Temperature Range ---------------------------------------------------------------------------------------
−
40°C to +125°C
Electrical Characteristics
(V
CC
= 5V, T
A
= 25° C, Unless otherwise specified.)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
V
CC
Supply Current / Regulated Voltage
Nominal Supply Current
Regulated Voltage from BOOT
Power-On Reset
Rising V
CC
Threshold
V
CC
Threshold Hysteresis
Rising V
OCSET
Threshold
Reference
Reference Voltage
Oscillator
Free Running Frequency
Ramp Amplitude
Error Amplifier
DC gain
PWM Controller Gate Driver
Upper Drive Source
Upper Drive Sink
Lower Drive Source
Lower Drive Sink
R
UGATE
R
UGATE
R
LGATE
R
LGATE
BOOT= 12V
BOOT-V
UGATE
= 1V
V
UGATE
= 1V
V
CC
- V
LGATE
= 1V,
V
LGATE
= 1V
--
--
--
--
7
5
4
2
11
7.5
6
4
Ω
Ω
Ω
Ω
32
35
38
dB
∆
V
OSC
250
--
300
1.75
350
--
kHz
V
P-P
0.784
0.8
0.816
V
V
OCSET
= 4.5V
V
OCSET
= 4.5V
3.85
0.3
0.8
4.1
0.5
1.25
4.35
0.7
2.0
V
V
V
I
CC
V
CC
UGATE, LGATE open
V
BOOT
= 12V
--
5
3
6
6
7
mA
V
To be continued
DS9202B-03 March 2007
www.richtek.com
5
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
