®
RTQ9148-QT
20V, 350mA, Rail-to-Rail Operational Amplifier
General Description
The RTQ9148 consists of a low power, high slew rate,
single supply rail-to-rail input and output operational
amplifier.
The RTQ9148 has a high slew rate (35V/μs), 350mA peak
output current and offset voltage below 15mV. The
RTQ9148 is ideal for Thin Film Transistor Liquid Crystal
Displays (TFT-LCD).
The RTQ9148 is available in the WDFN-6L 3x3 package.
The RTQ9148 are specified for operation over the full
temperature range from
−40°C
to 105°C.
Features
Rail-to-Rail Output Swing
Supply Voltage : 6V to 20V
Peak Output Current : 350mA
High Slew Rate : 35V/μs
μ
Unity Gain Stable
AEC-Q100 Grade 2 Certification
RoHS Compliant and Halogen Free
Applications
Ordering Information
RTQ9148
-QT
Package Type
QW : WDFN-6L 3x3 (W-Type)
(Exposed Pad-Option 2)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Note :
Richtek products are :
½
TFT LCD Panels
Notebook Computers
Monitors
LCD TVs
Pin Configuration
(TOP VIEW)
VOUT
VS-
VIN+
1
6
VS+
NC
VIN-
VS-
7
2
3
5
4
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.
WDFN-6L 3x3
½
Marking Information
P5= : Product Code
P5=YM
DNN
YMDNN : Date Code
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DSQ9148-QT-00
September 2018
www.richtek.com
1
RTQ9148-QT
Typical Application Circuit
VS+
VS+
VIN+
VIN-
+
-
VOUT
R
S
*
C
S
*
TFT-LCD
Capacitance
VS-
* : R
S
and C
S
may be needed for some applications.
Component
R
S
C
S
Recommend Value
5.1R, 10R
1F, 2.2F, 4.7F, 10F
Functional Block Diagram
VS+
VIN+
VIN-
-
+
VOUT
VS-
Functional Pin Description
Pin No.
1
2,
7 (Exposed Pad)
3
4
5
6
Pin Name
VOUT
VS-
VIN+
VIN-
NC
VS+
Output.
Negative supply input.
Positive input.
Negative input.
No internal connection.
Positive supply input.
Pin Function
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
2
DSQ9148-QT-00
September 2018
RTQ9148-QT
Absolute Maximum Ratings
(Note 1)
Supply Voltage, (VS+ to VS−) ------------------------------------------------------------------------------------------- 24V
VIN+, VIN− to VS− ----------------------------------------------------------------------------------------------------------
−0.3V
to 24V
VIN+ to VIN− -----------------------------------------------------------------------------------------------------------------
±5V
Power Dissipation, P
D
@ T
A
= 25°C
WDFN-6L 3x3 ---------------------------------------------------------------------------------------------------------------- 2.22W
Package Thermal Resistance (Note 2)
WDFN-6L 3x3,
θ
JA
----------------------------------------------------------------------------------------------------------- 45°C/W
WDFN-6L 3x3,
θ
JC
----------------------------------------------------------------------------------------------------------- 13.8°C/W
Lead Temperature (Soldering, 10 sec.) --------------------------------------------------------------------------------- 260°C
Junction Temperature ------------------------------------------------------------------------------------------------------- 150°C
Storage Temperature Range ----------------------------------------------------------------------------------------------
−65°C
to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model) ------------------------------------------------------------------------------------------------ 2kV
Recommended Operating Conditions
(Note 4)
Supply Voltage, VS− = 0V, VS+ -----------------------------------------------------------------------------------------
6V to 20V
Junction Temperature Range ----------------------------------------------------------------------------------------------
−40°C
to 125°C
Ambient Temperature Range ----------------------------------------------------------------------------------------------
−40°C
to 105°C
Electrical Characteristics
(V
S+
= 16V, V
S
−
= 0V, V
IN+
= V
OUT
= V
S+
/ 2, R
L
= 10kΩ and C
L
= 10pF, T
A
=
−40°C
to 105°C, unless otherwise specified)
Parameter
Input Characteristics
Input Offset Voltage
Input Bias Current
Load Regulation
Common Mode Input
Range
Output Characteristics
Output Swing Low
Output Swing High
Transient Peak Output
Current
Power Supply
Quiescent Current
Dynamic Performance
Slew Rate
Symbol
Test Conditions
Min
Typ
Max
Unit
V
OS
I
B
V
LOAD
CMIR
V
CM
= V
S+
/ 2
V
CM
= V
S+
/ 2
I
L
= 0 to
80mA
I
L
= 0 to 80mA
--
--
2
--
--
--
--
25
1.5
0.5
0.5
V
S+
0.5
1.5
--
520
mV
A
mV/mA
V
0.5
0.5
0.5
V
OL
V
OH
I
PK
I
L
=
50mA
I
L
= 50mA
--
V
S+
1.5
190
0.6
V
S+
0.3
355
V
V
mA
I
DD
No load
--
4
--
mA
SR
4V step, 20% to 80%, A
V
= 1
--
35
--
V/s
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DSQ9148-QT-00
September 2018
www.richtek.com
3
RTQ9148-QT
Note 1.
Stresses beyond those listed under
“Absolute
Maximum Ratings” may cause permanent damage to the device.
These are stress ratings only, and functional operation of the device at these or any other conditions beyond those
indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions may affect device reliability.
Note 2.
θ
JA
is measured under natural convection (still air) at T
A
= 25°C with the component mounted on a high effective-
thermal-conductivity four-layer test board on a JEDEC 51-7 thermal measurement standard.
θ
JC
is measured at the
exposed pad of the package.
Note 3.
Devices are ESD sensitive. Handling precaution is recommended.
Note 4.
The device is not guaranteed to function outside its operating conditions.
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
4
DSQ9148-QT-00
September 2018
RTQ9148-QT
Typical Operating Characteristics
Supply Current / Amplifier vs. Supply Voltage
5
Supply Current / Amplifier vs. Temperature
5
Supply Current (mA)
4
Supply Current (mA)
Unity Gain, One OP, V
IN+
= V
S+
/ 2,
V
S+
= 6V to 20V, V
S−
= 0V
4
3
3
2
2
1
Unity Gain, One OP, V
IN+
= 8V,
V
S+
= 16V, V
S−
= 0V
0
-50
-25
0
25
50
75
100
125
1
6
8
10
12
14
16
18
20
Supply Voltage (V)
Temperature (°C)
Input Offset Voltage vs. Supply Voltage
0.5
2
Input Offset Voltage vs. Temperature
Input Offset Voltage (mV)
Input Offset Voltage (mV)
Unity Gain, V
IN+
= V
S+
/ 2,
V
S+
= 6V to 20V, V
S−
= 0V
1
0.0
0
-0.5
-1
Unity Gain, V
IN+
= 8V, V
S+
= 16V, V
S−
= 0V
-2
-50
-25
0
25
50
75
100
125
-1.0
6
8
10
12
14
16
18
20
Supply Voltage (V)
Temperature (
C)
Output Voltage Swing vs. Supply Voltage
0.4
Rail to Rail
Unity Gain,
f = 10kHz
Output Voltage Swing (V)
0.2
Swing Low, V
IN+
= 0V,
V
IN−
= 3V, I
LOAD
=
−50mA
0.0
-0.2
Swing High, V
IN+
= 3V,
V
IN−
= 0V, I
LOAD
= 50mA
-0.4
V
S+
= 6V to 20V, V
S−
= 0V
-0.6
6
8
10
12
14
16
18
20
V
IN+
(2.8V/Div)
V
OUT
(2.8V/Div)
V
IN+
= 0.5V to 15.5V, V
S+
= 16V, V
S−
= 0V
Time (25μs/Div)
Supply Voltage (V)
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DSQ9148-QT-00
September 2018
www.richtek.com
5
ARM技术
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
