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Supply Control. FA5514P Datasheet

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Supply Control. FA5514P Datasheet






FA5514P Control. Datasheet pdf. Equivalent




FA5514P Control. Datasheet pdf. Equivalent





Part

FA5514P

Description

CMOS IC For Switching Power Supply Control



Feature


FA551X series FA5510P (N), FA5511P (N) F A5514P (N), FA5515P (N) ■ Description The FA551X series are the PWM type swi tching power supply control ICs that ca n directly drive power MOSFET. These IC s use a CMOS device with high dielectri c strength (30V) to implement low power consumption. These ICs contain many fu nction in a small 8-pin package. With t hese ICs, a highperf.
Manufacture

ETC

Datasheet
Download FA5514P Datasheet


ETC FA5514P

FA5514P; ormance and compact power supply can be created because not many external discr ete components are needed. CMOS IC For Switching Power Supply Control FA551X ■ Dimensions, mm SOP-8 8 5 1 4.9 4 +0.1 –0.05 6.0±0.2 3.9 ■ Featur es • Low current consumption by CMOS process with high dielectric strength ( 30V) • Standby current of 2µA or les s (at Vcc=14V), and operating .


ETC FA5514P

current of 1.5mA (typ) • Overvoltage p rotection function detecting the Vcc vo ltage • A drive circuit for connectin g a power MOSFET directly • Output pe ak current: ±1.5A • Pulse-by-pulse o vercurrent limiting function • Overlo ad protection function (latch or non-la tch mode selectable) • Output ON-OFF function by external signal • Latch-m ode overvoltage shutdown function.


ETC FA5514P

• Undervoltage lockout function (16.5 V ON / 9V OFF) • Reference voltage ou tput (5V) • 8-pin package (DIP/SOP) 0 .4±0.1 1.27 DIP-8 8 5 1 9.3 4 1 .5±0.3 6.4 3.0min 4.5max 3.3 0~8° ■ Block diagram FA5510P (N), FA5511 P (N) CS(8) REF (7) 5V VCC ENB 5V REF 8 .5V/7.9V 0.8V 3.5V ENB 4V PWM Dmax FA55 10: 46% FA5511: 70% OSC RT CT OUT PUT 0 .8V/0.68V 5.2µA 0.95mA 15.5V .

Part

FA5514P

Description

CMOS IC For Switching Power Supply Control



Feature


FA551X series FA5510P (N), FA5511P (N) F A5514P (N), FA5515P (N) ■ Description The FA551X series are the PWM type swi tching power supply control ICs that ca n directly drive power MOSFET. These IC s use a CMOS device with high dielectri c strength (30V) to implement low power consumption. These ICs contain many fu nction in a small 8-pin package. With t hese ICs, a highperf.
Manufacture

ETC

Datasheet
Download FA5514P Datasheet




 FA5514P
FA551X series
CMOS IC
For Switching Power SupplyFCAo5n5tr1oXl
FA5510P (N), FA5511P (N)
FA5514P (N), FA5515P (N)
Description
The FA551X series are the PWM type switching power supply
control ICs that can directly drive power MOSFET. These ICs
use a CMOS device with high dielectric strength (30V) to
implement low power consumption. These ICs contain many
function in a small 8-pin package. With these ICs, a high-
performance and compact power supply can be created
because not many external discrete components are needed.
Features
• Low current consumption by CMOS process with high
dielectric strength (30V)
• Standby current of 2µA or less (at Vcc=14V), and operating
current of 1.5mA (typ)
• Overvoltage protection function detecting the Vcc voltage
• A drive circuit for connecting a power MOSFET directly
• Output peak current: ±1.5A
• Pulse-by-pulse overcurrent limiting function
• Overload protection function (latch or non-latch mode selectable)
• Output ON-OFF function by external signal
• Latch-mode overvoltage shutdown function
• Undervoltage lockout function (16.5V ON / 9V OFF)
• Reference voltage output (5V)
• 8-pin package (DIP/SOP)
Block diagram
FA5510P (N), FA5511P (N)
CS(8)
VCC(6)
REF
(7)
5V VCC
ENB
5V REF
3.5V
FB
(2)
Dmax
FA5510: 46%
FA5511: 70%
0.8V/0.68V 5.2µA
0.95mA
15.5V
15.5V UVLO
8.5V/7.9V
0.8V
4V
PWM
16.5V/9V
ENB
OUT
(5)
OUT
PUT
OSC
RT CT
+0.24V
R
QB
SQ
FF
GND
(4)
5V Controlled block
RT(1) IS+(3)
FA5514P (N), FA5515P (N)
CS(8)
VCC(6)
REF
(7)
5V VCC
ENB
5V REF
3.5V
FB
(2)
Dmax
FA5514: 46%
FA5515: 70%
0.8V/0.68V 5.2µA
0.95mA
15.5V
15.5V UVLO
8.5V/7.9V
0.8V
4V
PWM
16.5V/9V
ENB
OUT
(5)
OUT
PUT
OSC
RT CT
-0.17V
R
QB
SQ
FF
GND
(4)
5V Controlled block
RT(1)
IS-(3)
Dimensions, mm
SOP-8
8
5
14
4.9
0.4±0.1 1.27
DIP-8
8
5
1
4
9.3
1.5±0.3
2.54
0.46±0.1
7.62
0~15˚
0.25+–00.1.05
0~15˚
Pin Pin
Function
No. symbol
1 RT
Oscillator timing
resistor
2 FB
Feedback
3 IS
Overcurrent
detection
4 GND Ground
5 OUT Output
6 VCC
7 REF
8 CS
Power supply
Reference voltage
Soft-start and
ON/OFF control
Description
Setting oscillation frequency
Input of PWM comparator
Input of the overcurrent
limiting function
Ground
Output for driving a power
MOSFET
Power supply
Reference voltage output (5V)
Soft-start, ON/OFF function and
latch-mode shutdown operations
Type
FA5510P
FA5510N
FA5511P
FA5511N
FA5514P
FA5514N
FA5515P
FA5515N
Max. duty
cycle (typ.)
46%
70%
46%
70%
Polarity of overcurrent Package
detection
+ DIP-8
SOP-8
+ DIP-8
SOP-8
– DIP-8
SOP-8
– DIP-8
SOP-8
1




 FA5514P
FA551X
Absolute maximum ratings
Item
Supply Voltage
Low impedance source (ICC>15mA)
Internal zener clamp (ICC<15mA)
Output peak current
FB pin input voltage
IS pin input voltage
REF pin source current
CS pin sink current
Total power dissipation (Ta=25˚C)
Ambient temperature
Maximum junction temperature
Storage temperature
Symbol
VCC1
VCC2
IOUT
VFB
VIS
IREF
ICS
Pd
Ta
Tj
Tstg
Rating
30
Self limiting
±1.5
–0.3 to 5.0
–0.3 to 5.0
–10
+2.0
800 (DIP-8)
400 (SOP-8)
–30 to +85
125
–40 to +150
Note: There are cases where the IC cannot output the rating current depending on Vcc voltage or temperature.
Unit
V
V
A
V
V
mA
mA
mW
˚C
˚C
˚C
Maximum power dissipation curve
400mW (SOP)
800mW (DIP)
0
–30 25
85 125
Ambient temperature Ta [˚C]
Recommended operating conditions
Item
Supply voltage
Oscillation frequency
REF-GND capacitor
Soft start capacitor
Symbol
VCC
fOSC
Cref
CS
Min.
10
10
0.1
0.01
Typ.
0.47
Max.
28
500
1
Unit
V
kHz
µF
µF
2




 FA5514P
FA551X
Electrical characteristics (VCC=18V, RT=47k, Ta=25˚C)
Reference voltage section (REF pin)
Item
Reference voltage
Line regulation
Load regulation
Temperature stability
Symbol
VREF
Vdv1
Vdv2
VdT
Test condition
Tj=25˚C
VCC=10 to 28V
IL=0 to 10mA, VCC=18V
Ta=–30 to 85˚C
Min.
4.75
–40
Typ.
5.00
±6
–12
±0.5
Max.
5.25
±20
Unit
V
mV
mV
mV/˚C
Oscillator section (RT pin)
Item
Oscillation frequency
Voltage stability
Temperature stability
Symbol
fOSC
fdv
fdT
Test condition
RT=47k, Tj=25˚C
VCC=10 to 28V
Ta=–30 to 85˚C
Min.
92.6
Typ.
100
±1.0
±0.02
Max.
107.4
Unit
kHz
%
%/˚C
Pulse width modulation circuit section (FB pin)
Item
FB pin source current
Input threshold voltage (FB pin)
Maximum duty cycle
Symbol
IFB
VTH FB0
VTH FBM
DMAX
Test condition FA5510/14
FA5511/15
Unit
Min. Typ. Max. Min. Typ. Max.
VFB=0
–855 –720 –585 –855 –720 –585 µA
Duty cycle =0% 0.9 1
0.9 1
V
Duty cycle =DMAX
1.92
2.40 V
42 46 50 66 70 74 %
Overcurrent limiting circuit section (IS pin)
Item
Input threshold voltage (IS pin)
Source current (IS pin)
Delay time
Symbol
VTHIS
IIS
tpdIS
Test condition
VIS=0V
FA5510/11
FA5514/15
Unit
Min. Typ. Max. Min. Typ. Max.
220 240 260 –190 –170 –150 mV
±5 –28 –20 –12 µA
150 150 ns
Soft start circuit section (CS pin)
Item
Charge current (CS pin)
Input threshold voltage (CS pin)
Symbol
ICHG
VTH CS0
VTH CSM
Test condition FA5310/14
Min. Typ.
VCS=1V, Tj=25˚C –7.2 –5.2
Duty cycle =0% 0.90 1.0
Duty cycle =DMAX
1.92
FA5311/15
Max. Min. Typ.
–3.2 –7.2 –5.2
0.90 1.0
2.40
Unit
Max.
–3.2 µA
V
V
Output ON/OFF control circuit section (CS pin)
Item
Source current (CS pin)
ON/OFF control threshold voltage (CS pin)
Hysteresis voltage
Symbol
IS0CS
VTHON
VTHOFF
VTHOHS
Test condition
VCS=0V, Tj=25˚C
OFFON, Tj=25˚C
ONOFF, Tj=25C
Min.
–7.2
0.50
Typ.
–5.2
0.8
0.68
0.12
Max.
–3.2
0.93
Unit
µA
V
V
V
3



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