参数资料
型号: ISL6334DCRZ
厂商: Intersil
文件页数: 14/28页
文件大小: 0K
描述: IC CTRLR PWM 4PHASE VR11.1 40QFN
标准包装: 50
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: 0°C ~ 70°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: 管件
ISL6334D
the error in the reference voltage (output of the DAC) and
offset errors in the OFS current source, remote-sense and
error amplifiers. Intersil specifies the guaranteed tolerance of
TABLE 2. VR11 VID 8-BIT
VID7 VID6 VID5 VID4 VID3 VID2 VID1 VID0 VOLTAGE
the ISL6334D to include the combined tolerances of each of
these elements.
The output of the error amplifier, V COMP , is compared to
sawtooth waveforms to generate the PWM signals. The
PWM signals control the timing of the Intersil MOSFET
drivers and regulate the converter output to the specified
reference voltage. The internal and external circuitry, which
control voltage regulation, are illustrated in Figure 6 .
EXTERNAL CIRCUIT ISL6334D INTERNAL CIRCUIT
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0
0
0
0
0
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0
0
0
0
0
0
0
0
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0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
OFF
OFF
1.60000
1.59375
1.58750
1.58125
1.57500
1.56875
R C
C C
COMP
DAC
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
1
1.56250
1.55625
R REF
C REF
REF
+
0
0
0
0
0
0
0
0
1
1
0
0
1
1
0
1
1.55000
1.54375
FB
-
V COMP
0
0
0
0
1
1
0
0
1.53750
R FB
VDIFF
ERROR AMPLIFIER
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0
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0
0
0
0
0
0
0
0
0
1
1
1
1
0
1
1
1
0
0
1
1
0
1
0
1
0
1.53125
1.52500
1.51875
1.51250
V OUT +
V OUT -
VSEN
RGND
+
-
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0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
1
1
1
0
1
1.50625
1.50000
1.49375
DIFFERENTIAL
REMOTE-SENSE
AMPLIFIER
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0
0
0
1
1
0
0
1
1
0
0
0
1
1.48750
1.48125
FIGURE 6. OUTPUT VOLTAGE REGULATION LOOP
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0
1
0
1
1
0
1.47500
The ISL6334D incorporates an internal differential remote
sense amplifier in the feedback path. The amplifier removes
the voltage error encountered when measuring the output
voltage relative to the local controller ground reference point,
resulting in a more accurate means of sensing output
voltage. Connect the microprocessor sense pins to the
non-inverting input, VSEN, and inverting input, RGND, of the
remote-sense amplifier. The remote-sense output, V DIFF , is
connected to the inverting input of the error amplifier through
an external resistor.
A digital-to-analog converter (DAC) generates a reference
voltage based on the state of logic signals at pins VID7
through VID0. The DAC decodes the eight 6-bit logic signal
(VID) into one of the discrete voltages shown in Table 2. All
VID pins have no internal pull-up current sources after t D3 .
After t D3 , each VID input offers a minimum 30μA pull-up to
an internal 2.5V source for use with open-drain outputs. The
pull-up current diminishes to zero above the logic threshold
to protect voltage-sensitive output devices. External pull-up
resistors can augment the pull-up current sources in case
leakage into the driving device is greater than 30μA.
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1
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1
1
0
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1
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1
1
0
0
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1
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0
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0
1
1
1
1
0
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0
1
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
1.46875
1.46250
1.45625
1.45000
1.44375
1.43750
1.43125
1.42500
1.41875
1.41250
1.40625
1.40000
1.39375
1.38750
1.38125
1.37500
1.36875
14
FN6802.3
November 22, 2013
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ISL6334DCRZ-T 功能描述:IC CTRLR PWM 4PHASE VR11.1 40QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器,Intel VR11 输入电压:5 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:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN(7x7) 包装:管件
ISL6334DIRZ 功能描述:IC CTRLR PWM 4PHASE VR11.1 40QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器,Intel VR11 输入电压:5 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:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN(7x7) 包装:管件
ISL6334DIRZ-T 功能描述:IC CTRLR PWM 4PHASE VR11.1 40QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器,Intel VR11 输入电压:5 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:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN(7x7) 包装:管件
ISL6334IRZ 功能描述:IC CTRLR PWM 4PHASE BUCK 40-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器,Intel VR11 输入电压:5 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:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN(7x7) 包装:管件
ISL6334IRZ-T 功能描述:IC CTRLR PWM 4PHASE BUCK 40-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 标准包装:43 系列:- 应用:控制器,Intel VR11 输入电压:5 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:48-VFQFN 裸露焊盘 供应商设备封装:48-QFN(7x7) 包装:管件