参数资料
型号: ISL6334CIRZ-T
厂商: Intersil
文件页数: 9/30页
文件大小: 0K
描述: IC CTRLR PWM SYNC BUCK 40-QFN
标准包装: 4,000
应用: 控制器,Intel VR11.1
输入电压: 3 V ~ 12 V
输出数: 1
输出电压: 0.5 V ~ 1.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 40-VFQFN 裸露焊盘
供应商设备封装: 40-QFN(6x6)
包装: 带卷 (TR)
ISL6334B, ISL6334C
Electrical Specifications
Recommended Operating Conditions; VCC = 5V, Unless Otherwise Specified. Boldface limits apply over the
operating temperature ranges, -40°C to +85°C or 0°C to +70°C. (Continued)
PARAMETER
TEST CONDITIONS
MIN
(Note 6)
TYP
MAX
(Note 6)
UNITS
PIN-ADJUSTABLE OFFSET
Voltage at OFS Pin
Offset resistor connected to ground
Voltage below VCC, offset resistor connected to
390
1.574
400
1.60
415
1.635
mV
V
VCC
OSCILLATORS
Accuracy of Switching Frequency Setting
Adjustment Range of Switching Frequency
Soft-start Ramp Rate
Adjustment Range of Soft-Start Ramp Rate
R T = 100k Ω
(Note 8)
R SS = 100k Ω (Notes 9, 10)
(Note 8)
225
0.08
-
0.625
250
-
1.563
-
275
1.0
-
6.25
kHz
MHz
mV/μs
mV/μs
PWM GENERATOR
Sawtooth Amplitude
-
1.5
-
V
ERROR AMPLIFIER
Open-Loop Gain
Open-Loop Bandwidth
Slew Rate
Maximum Output Voltage
Output High Voltage @ 2mA
Output Low Voltage @ 2mA
R L = 10k Ω to ground
-
-
-
3.8
3.6
-
96
80
25
4.4
-
-
-
-
-
4.9
-
1.6
dB
MHz
V/μs
V
V
V
REMOTE-SENSE AMPLIFIER
Bandwidth
-
20
-
MHz
Output High Current
Output High Current
VSEN - RGND = 2.5V (Note 8)
VSEN - RGND = 0.6 (Note 8)
-500
-500
-
-
500
500
μA
μA
PWM OUTPUT
Sink Impedance
Source Impedance
PWM = Low with 1mA Load
PWM = High, Forced to 3.7V
100
200
220
320
300
400
Ω
Ω
PSI# INPUT
High Signal Threshold
Low Signal Threshold
-
0.4
-
-
0.8
-
V
V
H_CPURST_N INPUT
PSI# Time Out
High Signal Threshold
Low Signal Threshold (PSI# Signal Lockout)
With Respect to H_CPURST_N Rising Edge
38
-
0.4
-
-
-
60
0.8
-
ms
V
V
CURRENT SENSE AND OVERCURRENT PROTECTION
Sensed Current Tolerance
ISEN1 = ISEN2 = ISEN3 = ISEN4 = 40μA;
36.5
-
42
μA
CS Offset and Mirror Error Included, R ISENx = 200 Ω
ISEN1 = ISEN2 = ISEN3 = ISEN4 = 80μA;
74
-
83
μA
CS Offset and Mirror Error Included, R ISENx = 200 Ω
Overcurrent Trip Level for Average Current at Normal
CS Offset and Mirror Error Included, R ISENx = 200 Ω
96
105
117
μA
CCM PWM Mode
Overcurrent Trip Level for Average Current at PSI#
N = 4, Drop to 1-Phase
-
121
-
μA
Mode
9
FN6689.2
August 31, 2010
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