參數(shù)資料
型號(hào): ISL6549HI-EVAL1
廠商: Intersil Corporation
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Single 12V Input Supply Dual Regulator Synchronous Rectified Buck PWM and Linear Power Controller
中文描述: 單電源雙12V輸入同步整流降壓穩(wěn)壓器和線性電源的PWM控制器
文件頁(yè)數(shù): 5/18頁(yè)
文件大小: 420K
代理商: ISL6549HI-EVAL1
5
FN9168.2
September 22, 2006
ISL6549
Sawtooth Amplitude (Note 6)
DV
OSC
1.5
V
Soft-Start Interval
T
SS
F
OSC
= 620kHz
6.8
ms
REFERENCE VOLTAGE
Reference Voltage
V
REF
ISL6549C; For Error Amp 1 and 2
0.792
0.8
0.808
V
ISL6549I; For Error Amp 1 and 2
0.788
0.8
0.812
V
PWM CONTROLLER ERROR AMPLIFIER
DC Gain (Note 6)
R
L
= 10K, C
L
= 10pF
96
dB
Gain-Bandwidth Product (Note 6)
GBWP
R
L
= 10K, C
L
= 10pF
20
MHz
Slew Rate (Note 6)
SR
R
L
= 10K, C
L
= 10pF
8
V/μs
FB Input Current
I
I
V
FB
= 0.8V
0.1
1.0
μA
COMP High Output Voltage
V
OUT
High
4.8
V
COMP Low Output Voltage
V
OUT
Low
0.6
V
COMP High Output, Source Current
I
OUT
High
-2.8
mA
Undervoltage Level (V
FB
/V
REF
)
V
UV
70
75
80
%
PWM CONTROLLER GATE DRIVERS
UGATE Maximum Voltage
V
HUGATE
VCC12 = 12V; PHASE = 12V
17
17.5
18
LGATE Maximum Voltage
V
HLGATE
VCC12 = 12V; based on PVCC5 voltage
5.25
6
V
UGATE and LGATE Minimum Voltage
V
L
GATE
VCC12 = 12V; PHASE = 0V
0
0.5
V
UGATE Source Output Impedance
R
DS(ON)
VCC12 = 12V; I
GATE
= 100mA
0.8
UGATE Sink Output Impedance
R
DS(ON)
VCC12 = 12V; I
GATE
= 100mA
0.7
LGATE Source Output Impedance
R
DS(ON)
VCC12 = 12V; I
GATE
= 100mA
0.8
LGATE Sink Output Impedance
R
DS(ON)
VCC12 = 12V; I
GATE
= 100mA
0.4
LINEAR REGULATOR (LDO_DR)
DC Gain (Note 6)
Gain
R
L
= 10K, C
L
= 10pF
100
dB
Gain-Bandwidth Product (Note 6)
GBWP
R
L
= 10K, C
L
= 10pF
2
MHz
Slew Rate (Note 6)
SR
R
L
= 10K, C
L
= 10pF
6
V
/
μs
LDO_FB Input Current
I
I
V
LDO_FB
= 0.8V
0.1
1.0
μA
LDO_DR High Output Voltage
V
OUT
High
VCC12 = 12V
11.0
11.5
V
LDO_DR Low Output Voltage
V
OUT
Low
0.0
0.5
V
LDO_DR High Output Source Current
I
OUT
High
V
OUT
= 2.0V
2.0
mA
LDO_DR Low Output Sink Current
I
OUT
Low
0.5
mA
Undervoltage Level (V
LDO_FB
/V
REF
)
V
UV
Percent of Nominal
70
75
80
%
NOTES:
4. Current in VCC5 is actually higher disabled, due to extra current required to pull down against the FS_DIS pin. VCC12 current is lower disabled.
5. Guaranteed by design, not production tested. Exceeding the maximum current from PVCC5 may result in degraded performance and unsafe
operation.
6. Guaranteed by design, not production tested.
Electrical Specifications
Recommended Operating Conditions, unless otherwise noted. VCC12 = 12V
Temperature = 0 to +70°C (typical = +25°C) for Commercial; Temperature = -40 to + 85°C (typical = +25°C) for
Industrial. Refer to Block Diagram, Simplified Power System Diagram, and Typical Application Schematic.
(Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
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ISL6549IAZ Single 12V Input Supply Dual Regulator Synchronous Rectified Buck PWM and Linear Power Controller
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