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| 型號： | CS5303GDWR28 |
| 英文描述： | Analog IC |
| 中文描述： | 模擬IC |
| 文件頁數(shù)： | 6/20頁 |
| 文件大?。?/td> | 176K |
| 代理商： | CS5303GDWR28 |
CS5303
http://onsemi.com
6
ELECTRICAL CHARACTERISTICS (continued)
(0
°
C < T
A
< 70
°
C; 0
°
C < T
J
< 125
°
C; 4.7
V < V
CCL
< 14
V; 8
V < V
CCH
< 20
V;
C
GATE(H)
= 3.3
nF, C
GATE(L)
= 3.3
nF, R
R(OSC)
= 53.6
k, C
COMP
= 0.1
μ
F, C
REF
= 0.1
μ
F, DAC Code 10000, C
VCC
= 1.0
μ
F, I
LIM
≥
1
V;unless other-
wise specified)
Characteristic
Unit
Max
Typ
Min
Test Conditions
Current Sensing and Sharing
I
LIM
Bias Current
0 < I
LIM
< 1.0 V
–
0.1
1.0
μ
A
Single Phase Pulse by Pulse
Current Limit: V(CSx) – V(CS
REF
)
–
60
70
90
mV
Current Share Amplifier Bandwidth
Note 5.
1.0
–
–
mHz
Reference Output
V
REF
Output Voltage
0
mA < I(V
REF
) < 1.0
mA
3.15
3.25
3.35
V
General Electrical Specifications
V
CCLL1
Operating Current
V
FB
= COMP(no switching)
–
23
28
mA
V
CCL23
Operating Current
V
FB
= COMP(no switching)
–
8.0
11
mA
V
CCH12
Operating Current
V
FB
= COMP(no switching)
–
5.5
7.0
mA
V
CCH3
Operating Current
V
FB
= COMP(no switching)
–
2.5
3.5
mA
V
CCLL1
Start Threshold
GATEs switching, COMP charging
4.05
4.40
4.70
V
V
CCLL1
Stop Threshold
GATEs stop switching, COMP discharging
3.75
4.20
4.60
V
V
CCLL1
Hysteresis
GATEs not switching, COMP not charging
100
200
300
mV
V
CCH12
Start Threshold
GATEs switching, COMP charging
1.7
1.9
2.1
V
V
CCH12
Stop Threshold
GATEs stop switching, COMP discharging
1.55
1.75
1.90
V
V
CCH12
Hysteresis
GATEs not switching, COMP not charging
100
200
300
mV
5. Guaranteed by design. Not tested in production.
PACKAGE PIN DESCRIPTION
PACKAGE PIN #
28 Lead SO Wide
PIN SYMBOL
FUNCTION
1
COMP
Output of the error amplifier and input for the PWM
comparators.
2
V
FB
Voltage Feedback Pin. To use Adaptive Voltage Positioning
(AVP) select an offset voltage at light load and connect a
resistor between V
FB
and V
OUT
. The input bias current of the
V
FB
pin and the resistor value determine output voltage off-
set for zero output current. Short V
FB
to V
OUT
for no AVP.
3
V
DRP
Current sense output for AVP. The offset of this pin above the
DAC voltage is proportional to the output current. Connect a
resistor from this pin to V
FB
to set amount AVP or leave this
pin open for no AVP.
4–6
CS1–CS3
Current sense amplifier inputs. Connect current sense net-
work for the corresponding phase to each input.
7
CS
REF
Reference for current sense amplifiers. To balance input
offset voltages between the inverting and noninverting inputs
of the current sense amplifiers, connect a resistor between
CS
REF
and the output voltage. The value should be 1/3 of
the value of the resistors connected to the CSx pins.
8–12
VID4–VID0
Voltage ID DAC inputs. These pins are internally pulled up to
3.3
V if left open.
13
I
LIM
Sets threshold for current limit. Connect to reference through
a resistive divider.
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PDF描述 |
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| CS5345-KS | Analog-to-Digital Converter， 16-Bit |
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| CS5349-KP | Analog-to-Digital Converter， 16-Bit |
| CS5349-KS | Analog-to-Digital Converter， 16-Bit |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS5305 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Three−Phase Synchronous Switching Step−Down Controller with Single Wire Current Sharing |
| CS5305/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Three-Phase Synchronous Switching Step-Down Controller with Single Wire Current Sharing |
| CS5305GDW28 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:ON Semiconductor 功能描述: |
| CS5305GDWR28 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Three−Phase Synchronous Switching Step−Down Controller with Single Wire Current Sharing |
| CS5307/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Four-Phase VRM 9.0 Buck Controller |
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