|
|
PDF PT2201BDIH Data sheet ( Hoja de datos )
| Número de pieza | PT2201BDIH | |
| Descripción | Current Mode PWM Controller | |
| Fabricantes | PowTech | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de PT2201BDIH (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
|
No Preview Available !
PT2201
Current Mode PWM Controller
GENERAL DESCRIPTION
PT2201 is a highly integrated current mode PWM controller,
with the features of extreme low start up current, low
operating current plus green mode operation and built-in
protection functions allows the design of SMPS become
easier to meet the high performance, high reliability and low
standby power requirements.
The start-up current is very small typically 3uA so that a large
start up resistor can be used in the start-up circuit to minimize
standby power. Under the light load or no load conditions the
PT2201 automatically decreases PWM frequency and enters
burst mode operation thus the power loss on power MOSFET
is reduced. With a programmable oscillator the PWM
frequency is easily set via an external resistor.
Synchronized slope compensation has been implemented in
the PT2201 to avoid potential sub harmonic oscillation caused
by peak current control mode when operating under
Continuous Conduct Mode. Moreover, the internal LEB on
the current sense input removes the signal glitch due to
snubber circuit diode reverse recovery and greatly reduces the
external component count and system cost in the design.
The PT2201 also features multi-level protections to enhance
SMPS reliability including cycle by cycle Over Current
Protection, Over Load Protection, programmable Over
Temperature Protection, Over Voltage Protection on VDD
and VDD Under Voltage Lock-out. The gate drive output is
clamped at 18V to protect the power MOSFET. The burst
mode frequency is limited above 20 KHz thus the potential
audible noise is avoid while the system is under light or no
load conditions.
The PT2201 is available in SOP8 and DIP8 packages.
FEATURES
z Frequency Jittering For Better EMI Performance
z Frequency automatically decrease to minimize standby
power
z Noise Free Operation
z Programmable PWM Frequency
z Current Mode Operation, Built-in Slope Compensation
z Low Start-up Current
z Constant Power Limit For Universal AC Input
z Leading Edge Blanking on Current Sense
z Gate Output 18V Clamp
z Protection Functions：
Auto Recovery Programmable Over Temperature
Protection（OTP）
Auto Recovery Over Voltage Protection on VDD
(OVP) and UVLO
Line Compensated Cycle By Cycle Current Limit
(OCP)
Locked Over Load Protection (OLP)
APPLICATIONS
z Open-frame SMPS
z Fly-back Switching Power Supplier
z Power Adaptor
z Battery Charger
ORDERING INFORMATION
PACKAGE
SOP-8
TEMPERATURE
RANGE
-40℃ to 85℃
ORDERING PART NUMBER
PT2201BSOH
DIP-8
-40℃ to 85℃
PT2201BDIH
Note:
xxxxxX
Assembly Factory Code
Lot Number
TRANSPORT
MEDIA
Tape and Reel
Tube
MARKING
PT2201
xxxxxX
PT2201
xxxxxX
PT2201_DS_EN2.0
第 1页
1 page  
PT2201
Current Mode PWM Controller
ELECTRICAL CHARACTERISTICS (CONTINUE)
SYMBOL
PARAMETER
TEST CONDITION
Oscillator Frequency Stability VDD=16V,
FDT
At Different Temperature
RI=100Kohm
-20oC 到 100oC
FDV
Oscillator Frequency Stability VDD=12~25V,
At Different VDD Input Level RI=100Kohm
PWM SECTION
AV PWM Input GAIN
TBLK
DMAX
Leading Edge Blanking Time
PWM Maximum Duty Cycle
DMIN
PWM Minimum Duty Cycle
△VFB/△VCS
OVER TEMP PROTECTION (RT)
IRT
VOTP
RT Pin Supply Current
RT Pin Over Temp Protection
Threshold
VDD=16V
RI=100Kohm
VDD=16V
RI=100Kohm
，
，
VOTP_HYS
VRT_Open
RT Pin Over Temp Protection
Hysteresis
RT Pin Floating Voltage
VDD=16V
RI=100Kohm
，
CURRENT SENSE INPUT (SENSE)
ZCS
VTH_OC
△VOC/△IVIN
SENSE Input Impendence
OCP Threshold at Ivin=0
OCP IVIN Compensation
Coefficient
FB=4V, I(VIN)=0
VTH_OC_1
OCP Threshold
Compensation
With
FB=4V, I(VIN)=150uA
TOC_DELAY
Delay Time From OCP to
Gate Output OFF
GATE OUTPUT
VDD=16V,
CS>VTH_OC
CGATE=1000pF
，
VOL
VOH
T_r
T_f
VGMAX
GATE Output Low Level
GATE Output High Level
GATE Output Rising time
GATE Output Falling Time
GATE Output Clamp Voltage
VDD=16V, Io=-20mA
VDD=16V, Io=20mA
VDD=16V, CL=1000pF
VDD=16V, CL=1000pF
MIN
1.015
0.85
11
TYP
2
2
3.0
300
80
70
1.065
100
6
30
0.90
-0.87
0.77
100
120
50
18
MAX
0
1.115
0.95
0.3
UNIT
%
%
V/V
ns
%
%
uA
V
mV
V
Kohm
V
mV/uA
V
nS
V
V
nS
nS
V
PT2201_DS_EN2.0 Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com
第 5页
5 Page 
PT2201
Current Mode PWM Controller
Fosc vs. RI
140
120
100
80
60
40
20
0
50 70 90 110 130 150 170 190
RI（Kohm）
VOC vs. Temperature Ivin=0
0.950
0.940
0.930
0.920
0.910
0.900
0.890
0.880
0.870
0.860
-20 0 20 40 60 80 100
Temp(C)
120
Fosc vs. VDD Ri=100Kohm
69
67
65
63
61
59
57
55
12 13 14 15 16 17 18 19 20 21 22 23 24 25
VDD(V)
81.00
DMAX vs. Temperature Ri=100Kohm
80.50
80.00
79.50
79.00
78.50
78.00
-20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120
Temp(C)
70.5
70.0
69.5
69.0
68.5
68.0
67.5
67.0
IRT vs. Temperature Ri=100Kohm
-20 0 20 40 60 80 100 120
Temp（C）
0.95
VTH_OC vs. Ivin
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0 40 80 120 160 200 240 280
IVIN(uA)
PT2201_DS_EN2.0
Tel: 0755-8398 3377 / 135 9011 2223 http://www.gofotech.com 第 11 页
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet PT2201BDIH.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| PT2201BDIH | Current Mode PWM Controller | PowTech |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |