参数资料
| 型号： | ISL62883HRTZ-T |
| 厂商： | Intersil |
| 文件页数： | 14/37页 |
| 文件大小： | 0K |
| 描述： | IC REG PWM 3PHASE BUCK 40TQFN |
| 标准包装： | 6,000 |
| 应用： | 控制器，Intel IMVP-6.5? |
| 输入电压： | 5 V ~ 21 V |
| 输出数： | 1 |
| 输出电压： | 0.013 V ~ 1.5 V |
| 工作温度： | -10°C ~ 100°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页当前第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页
ISL62883, ISL62883B
TABLE 1. VID TABLE (Continued)
TABLE 1. VID TABLE (Continued)
VID6
1
1
1
1
1
1
VID5
0
0
0
0
0
0
VID4
0
1
1
1
1
1
VID3
1
0
0
0
0
0
VID2
1
0
0
0
0
1
VID1
1
0
0
1
1
0
VID0
1
0
1
0
1
0
V O (V)
0.5125
0.5000
0.4875
0.4750
0.4625
0.4500
VID6
1
1
1
1
1
1
VID5
1
1
1
1
1
1
VID4
1
1
1
1
1
1
VID3
1
1
1
1
1
1
VID2
0
0
1
1
1
1
VID1
1
1
0
0
1
1
VID0
0
1
0
1
0
1
V O (V)
0.0000
0.0000
0.0000
0.0000
0.0000
0.0000
1
1
0
0
1
1
0
0
1
1
0
1
1
0
0.4375
0.4250
1
0
1
0
1
1
1
0.4125
RDROOP
VCC SENSE
1
1
1
0
0
0
1
1
1
1
1
1
0
0
0
0
0
1
0
1
0
0.4000
0.3875
0.3750
FB
VDROOP
IDROOP
VR LOCAL
VO
“CATCH”
RESISTOR
1
1
0
0
1
1
1
1
0
1
1
0
1
0
0.3625
0.3500
COMP
E/A
Σ
VDAC
DAC
VIDS
VID<0:6>
1
0
1
1
1
0
1
0.3375
RTN
VSS SENSE
1
0
1
1
1
1
0
0.3250
INTERNAL TO IC
X1
VSS
R i
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0.3125
0.3000
0.2875
0.2750
0.2625
0.2500
0.2375
0.2250
0.2125
0.2000
0.1875
0.1750
0.1625
0.1500
0.1375
0.1250
0.1125
0.1000
0.0875
0.0750
0.0625
0.0500
0.0375
0.0250
0.0125
0.0000
0.0000
“CATCH”
RESISTOR
FIGURE 9. DIFFERENTIAL SENSING AND LOAD LINE
IMPLEMENTATION
As the load current increases from zero, the output voltage will
droop from the VID table value by an amount proportional to the
load current to achieve the load line. The ISL62883 can sense the
inductor current through the intrinsic DC Resistance (DCR)
resistance of the inductors Figure 1 shows on page 10 or through
resistors in series with the inductors as Figure 2 shows also on
inductor total currents. A droop amplifier converts C n voltage into
an internal current source with the gain set by resistor R i . The
current source is used for load line implementation, current
monitor and overcurrent protection.
Figure 9 shows the load line implementation. The ISL62883
drives a current source I droop out of the FB pin, described by
Equation 1.
2xV Cn
I droop = ---------------- (EQ. 1)
When using inductor DCR current sensing, a single NTC element
is used to compensate the positive temperature coefficient of the
copper winding thus sustaining the load line accuracy with
reduced cost.
I droop flows through resistor R droop and creates a voltage drop
of:
V droop = R droop × I droop (EQ. 2)
V droop is the droop voltage required to implement load line.
Changing R droop or scaling I droop can both change the load line
slope. Since I droop also sets the overcurrent protection level, it is
recommended to first scale I droop based on OCP requirement,
then select an appropriate R droop value to obtain the desired
load line slope.
14
FN6891.4
June 21, 2011
相关PDF资料 |
PDF描述 |
|---|---|
| RCM22DTBD-S189 | CONN EDGECARD 44POS R/A .156 SLD |
| RMC17DRSD-S273 | CONN EDGECARD 34POS DIP .100 SLD |
| ISL62883BHRTZ-T | IC REG PWM 3PHASE BUCK 48TQFN |
| ISL6524ACBZ | IC CTRLR VRM8.5 PWM TRPL 28-SOIC |
| EBA40DCBD | CONN EDGECARD 80POS R/A .125 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL62883IRTZ | 功能描述:直流/直流开关调节器 3 PHS PWM BUCKG FOR MICROPROC PWR SUP RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| ISL62883IRTZ-T | 功能描述:直流/直流开关调节器 3 PHS PWM BUCKG FOR MICROPROC PWR SUP RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| ISL62884C | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Single-Phase PWM Regulator for IMVP-6a?￠ Mobile CPUs |
| ISL62884CEVAL2Z | 功能描述:EVAL BOARD FOR ISL62884C RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL62884CHRTZ | 功能描述:直流/直流开关调节器 1-PHS PWM BUCKG FOR MICROPROC PWR SUPPLY RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
发布紧急采购，3分钟左右您将得到回复。