CS5211EDR14 PDF даташит
Спецификация CS5211EDR14 изготовлена «ON Semiconductor» и имеет функцию, называемую «Low Voltage Synchronous Buck Controller». |
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Детали детали
Номер произв | CS5211EDR14 |
Описание | Low Voltage Synchronous Buck Controller |
Производители | ON Semiconductor |
логотип |
16 Pages
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CS5211
Low Voltage Synchronous
Buck Controller
The CS5211 is a low voltage synchronous buck controller. It
contains all required circuitry for a synchronous buck converter using
external N–Channel MOSFETs. High current internal gate drivers are
capable of driving high gate capacitance of low RDS(on) NFETs for
better efficiency. The V2™ control architecture is used to achieve
unmatched transient response, the best overall regulation and the
simplest loop compensation. The CS5211 is in a 14–pin package to
allow the designer added flexibility.
The CS5211 provides overcurrent protection, undervoltage lockout,
Soft Start and built in adaptive nonoverlap. The CS5211 also provides
adjustable fixed frequency range of 150 kHz to 750 kHz. This gives
the designer more flexibility to make efficiency and component size
compromises. The CS5211 will operate over a 4.5 V to 14 V range
using either single of dual input voltage.
Features
• Switching Regulator Controller
– N–Channel Synchronous Buck Design
– V2 Control Topology
– 200 ns Transient Response
– Programmable Fixed Frequency of 150 kHz–750 kHz
– 1.0 V 1.5% Internal Reference
– Lossless Inductor Sensing Overcurrent Protection
– Hiccup Mode Short Circuit Protection
– Programmable Soft Start
– 40 ns GATE Rise and Fall Times (3.3 nF Load)
– 70 ns Adaptive FET Nonoverlap Time
– Differential Remote Sense Capability
• System Power Management
– 5.0 V or 12 V Operation
– Undervoltage Lockout
– On/Off Control Through Use of the COMP Pin
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MARKING
DIAGRAM
14
SOIC–14
D SUFFIX
CASE 751A
CS5211x
AWLYWW
1
x
A
WL, L
YY, Y
WW, W
= E or G
= Assembly Location
= Wafer Lot
= Year
= Work Week
PIN CONNECTIONS
1
GATE(H)
BST
LGND
VFFB
VFB
COMP
SGND
PGND
GATE(L)
VC
IS+
IS–
VCC
ROSC
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
© Semiconductor Components Industries, LLC, 2001
December, 2001 – Rev. 4
1
Publication Order Number:
CS5211/D
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CS5211
5.0 V
+
100 µF/10 V × 3
0.1 µF
0.1 µF
10
VC
VCC
COMP
ROSC
BST
GATE(H)
GATE(L)
PGND
51 k CS5211 IS+
IS–
SGND
VFFB
LGND
VFB
0.1 µF
1.0 k
1.0%
2.9 µH
4.7 k
0.1 µF
1.0%
1.5 k
0.1 µF
4.7 k
680 pF
2.5 V/8.0 A
+VOUT
+
100 µF/10 V × 2
10
–VOUT
Return
SENSE+
SENSE–
Figure 1. Application Diagram, 5.0 V to 2.5 V/8.0 A Converter with Differential Remote Sense
MAXIMUM RATINGS*
Rating
Operating Junction Temperature, TJ
Lead Temperature Soldering:
Storage Temperature Range, TS
Package Thermal Resistance:
Junction–to–Case, RθJC
Junction–to–Ambient, RθJA
ESD Susceptibility (Human Body Model)
JEDEC Moisture Sensitivity
1. 60 second maximum above 183°C.
*The maximum package power dissipation must be observed.
MAXIMUM RATINGS
Pin Name
Pin Symbol
IC Power Input
Power input for the low side driver
Power Supply input for the high
side driver
VCC
VC
BST
Compensation Capacitor
COMP
Voltage Feedback Input
Oscillator Resistor
VFB
ROSC
VMAX
16 V
16 V
20 V
6.0 V
6.0 V
6.0 V
Reflow: (SMD styles only) (Note 1)
Value
150
230 peak
–65 to +150
Unit
°C
°C
°C
30 °C/W
125 °C/W
2.0 kV
1.0 –
VMIN
–0.3 V
–0.3 V
–0.3 V
–0.3 V
–0.3 V
–0.3 V
ISOURCE
N/A
N/A
N/A
1.0 mA
1.0 mA
1.0 mA
ISINK
50 mA DC
1.5 A Peak, 200 mA DC
1.5 A Peak, 200 mA DC
1.0 mA
1.0 mA
1.0 mA
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CS5211
MAXIMUM RATINGS (continued)
Pin Name
Pin Symbol
Fast Feedback Input
High–Side FET Driver
VFFB
GATE(H)
Low–Side FET Driver
GATE(L)
Positive Current Sense
Negative Current Sense
Power Ground
Logic Ground
Sense Ground
IS+
IS–
PGND
LGND
SGND
VMAX
6.0 V
20 V
16 V
6.0 V
6.0 V
0.3 V
0V
0.3 V
VMIN
–0.3 V
ISOURCE
1.0 mA
–0.3 V
–2.0 V for 50 ns
1.5 A Peak
200 mA DC
–0.3 V
–2.0 V for 50 ns
1.5 A Peak
200 mA DC
–0.3 V
1.0 mA
–0.3 V
1.0 mA
–0.3 V
1.5 A Peak, 200 mA DC
0 V 100 mA
–0.3 V
1.0 mA
ISINK
1.0 mA
1.5 A Peak
200 mA DC
1.5 A Peak
200 mA DC
1.0 mA
1.0 mA
N/A
N/A
1.0 mA
ELECTRICAL CHARACTERISTICS (–40°C < TA < 85°C; –40°C < TJ < 125°C; 4.5 V < VCC, VC < 14 V;
7.0 V < BST < 20 V; CGATE(H) = CGATE(L) = 3.3 nF; ROSC = 51 k; CCOMP = 0.1 µF, unless otherwise specified.)
Characteristic
Test Conditions
Min Typ
Error Amplifier
VFB Bias Current
COMP Source Current
COMP SINK Current
Open Loop Gain
VFB = 0 V
VFB = 0.8 V
VFB = 1.2 V
–
– 0.1
15 30
15 30
– 98
Unity Gain Bandwidth
C = 0.1 µF
– 50
PSRR @ 1.0 kHz
– – 70
Output Transconductance
– – 32
Output Impedance
– – 2.5
Reference Voltage
COMP Max Voltage
COMP Min Voltage
GATE(H) and GATE(L)
–0.1 V < SGND < 0.1 V,
COMP = VFB, Measure VFB to SGND
VFB = 0.8 V
VFB = 1.2 V
0.977
2.5
–
0.992
3.0
0.1
High Voltage (AC)
Low Voltage (AC)
Rise Time
GATE(L),
GATE(H)
0.5 nF < CGATE(H) = CGATE(L) < 10 nF
GATE(L) or GATE(H)
0.5 nF < CGATE(H); CGATE(L) < 10 nF
VC = BST = 10 V, Measure:
1.0 V < GATE(L) < 9.0 V,
1.0 V < GATE(H) < 9.0 V
VC – 0.5
BST – 0.5
–
––
– 40
Fall Time
VC = BST = 10 V, Measure:
1.0 V < GATE(L) < 9.0 V,
1.0 V < GATE(H) < 9.0 V
– 40
GATE(H) to GATE(L) Delay
GATE(H) < 2.0 V, GATE(L) > 2.0 V
40 70
GATE(L) to GATE(H) Delay
GATE(L) < 2.0 V, GATE(H) > 2.0 V
40 70
GATE(H)/(L) Pull–Down
Resistance to PGND
20 50
2. Guaranteed by design. Not tested in production.
Max Unit
1.0
60
60
–
–
–
–
–
1.007
µA
µA
µA
dB
kHz
dB
mmho
MΩ
V
–V
0.2 V
–V
0.5 V
80 ns
80 ns
110 ns
110 ns
115 KΩ
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CS5211EDR14 | Low Voltage Synchronous Buck Controller | ON Semiconductor |
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