DataSheet26.com

NCP81166A PDF даташит

Спецификация NCP81166A изготовлена ​​​​«ON Semiconductor» и имеет функцию, называемую «Synchronous Buck MOSFET Drivers».

Детали детали

Номер произв NCP81166A
Описание Synchronous Buck MOSFET Drivers
Производители ON Semiconductor
логотип ON Semiconductor логотип 

9 Pages
scroll

No Preview Available !

NCP81166A Даташит, Описание, Даташиты
NCP81166, NCP81166A
Synchronous Buck MOSFET
Drivers
The NCP81166/A is a high performance dual MOSFET gate driver
optimized to drive the gates of both high−side and low−side power
MOSFETs in a synchronous buck converter. 2mm x 2mm DFN8
package allows for space−optimized board layout.
Zero current detect feature allows for a high−efficiency solution
even at light load conditions. Pre−OVP feature aids in protecting the
load in the event of a short across the high−side FET. VCC UVLO
ensures the MOSFETs are off when supply voltages are low. A
bi−directional Enable pin provides a fault signal to the controller
when a pre−OVP or UVLO fault is detected.
http://onsemi.com
1
DFN8
MN SUFFIX
CASE 506CN
Features
Space−Efficient 2 mm x 2mm DFN8 Thermally−Enhanced Package
VCC Range of 4.5 V to 13.2 V
Integrated Bootstrap Diode
Pre−OVP Function Protects Load during HS FET Short
NCP81166: 2.25 V SW Trip Threshold
NCP81166A: 1.8 V SW Trip Threshold
Zero Current Detect Function Provides Power Saving Operation
during Light Load Conditions
Bi−directional Enable Feature pulls Enable pin low during pre−OVP
and UVLO Faults
5 V tri−state PWM Logic
Adaptive Anti−Cross−Conduction Circuit Protects against
Cross−Conduction during FET turn−on and turn−off
Output Disable Control turns off both MOSFETs via Enable pin
VCC Undervoltage Lockout
Direct interface to ASP1252, ASP1400 and other compatible PWM
Controllers
These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
Power Solutions for Desktop Systems
MARKING DIAGRAM
1
XXMG
G
XX = Specific Device Code
CE for NCP81166
CH for NCP81166A
M = Date Code
G = Pb−Free Device
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
Package
Shipping
NCP81166MNTBG
DFN8
3000 / Tape &
(Pb−Free)
Reel
NCP81166AMNTBG DFN8
3000 / Tape &
(Pb−Free)
Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2015
January, 2015 − Rev. 2
1
Publication Order Number:
NCP81166/D









No Preview Available !

NCP81166A Даташит, Описание, Даташиты
VCC
PWM
NCP81166, NCP81166A
PWM 1
BST
NC DRVH
GND
EN 9 SW
VCC
DRVL
(Top View)
Figure 1. Pin Diagram
Logic
Anti−Cross
Conduction
VCC
BST
DRVH
SW
DRVL
EN ZCD
UVLO
Detection
Fault
Pre−OV
Figure 2. Block Diagram
Table 1. Pin Descriptions
Pin No.
Symbol
Description
1
PWM
Control input. The PWM signal has three distinctive states: Low = Low Side FET Enabled, Mid = Diode Emu-
lation Enabled, High = High Side FET Enabled.
2 NC No connect. There is no electrical connection from this pin to the die. Externally connecting this pin to ground
will not affect the functionality of the part.
3 EN Logic input. A logic high to enable the part and a logic low to disable the part. Pin is internally pulled low dur-
ing pre−OVP and UVLO faults.
4
VCC
Power supply input. Connect a bypass capacitor (1 mF) from this pin to ground.
5
DRVL
Low side gate drive output. Connect to the gate of low side MOSFET.
6 SW Switch node. Connect this pin to the source of the high side MOSFET and drain of the low side MOSFET.
7
DRVH
High side gate drive output. Connect to the gate of high side MOSFET.
8 BST Floating bootstrap supply pin for high side gate driver. Connect the bootstrap capacitor between this pin and
the SW pin.
9
GND
Bias and reference ground. All signals are referenced to this node.
http://onsemi.com
2









No Preview Available !

NCP81166A Даташит, Описание, Даташиты
12V_POWER
R1
1.02
TP4
PWM
DRON
C5
1uF
NCP81166, NCP81166A
R164 C4 0.027uF
0.0
R143 NCP81166/A TP3
0.0
BST HG
PWM SW
VREG_SW1_HG
VREG_SW1_OUT
EN GND
TP6 TP7
VCC LG
VREG_SW1_LG
PAD
TP8
TP1
TP2
R142
Q1
NTMFS4821N
C1
4.7uF
C2
4.7uF
+
C3 CE9
4.7uF 390uF
0.0
TP5
L VCCP
Q9 Q10
NTMFS4851N NTMFS4851N
R3
2.2
235nH
JP13_ETCH CSN11
C6
2700pF
JP14_ETCH CSP11
Figure 3. Application Circuit
Table 2. ABSOLUTE MAXIMUM RATINGS
Pin Symbol
VCC
Pin Name
Main Supply Voltage Input
VMAX
15 V
VMIN
−0.3 V
BST
Bootstrap Supply Voltage
35 V wrt/ GND
−0.3 V wrt/SW
40 V 50 ns wrt/ GND
15 V wrt/ SW
SW
Switching Node
35 V
−5 V
(Bootstrap Supply Return)
40 V 50 ns
−10 V (200 ns)
DRVH
High Side Driver Output
BST+0.3 V
−0.3 V wrt/SW
−2 V (<200 ns) wrt/SW
DRVL
Low Side Driver Output
VCC+0.3 V
−0.3 V DC
−5 V (<200 ns)
PWM
DRVH and DRVL Control Input
6.5 V
−0.3 V
EN
Enable Pin
6.5 V
−0.3 V
GND
Ground
0V 0V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 3. THERMAL INFORMATION (All signals referenced to AGND unless noted otherwise)
Symbol
Parameter
Value
RqJA
TJ
TA
TSTG
MSL
Thermal Characteristic (Note 1)
Operating Junction Temperature Range* (Note 2)
Operating Ambient Temperature Range*
Maximum Storage Temperature Range
Moisture Sensitivity Level
74
−40 to 150
−10 to +125
−55 to +150
1
* The maximum package power dissipation must be observed.
1. I in2 Cu, 1 oz thickness.
2. Operation at −40°C to −10°C guaranteed by design, not production tested.
Unit
°C/W
°C
°C
°C
http://onsemi.com
3










Скачать PDF:

[ NCP81166A.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
NCP81166Synchronous Buck MOSFET DriversON Semiconductor
ON Semiconductor
NCP81166ASynchronous Buck MOSFET DriversON Semiconductor
ON Semiconductor

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск