参数资料
| 型号： | ISL62882BHRTZ-T |
| 厂商： | Intersil |
| 文件页数： | 3/42页 |
| 文件大小： | 0K |
| 描述： | IC REG PWM 2PHASE BUCK 48TQFN |
| 标准包装： | 4,000 |
| 应用： | 控制器，Intel IMVP-6.5? |
| 输入电压： | 5 V ~ 25 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： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-TQFN-EP（6x6） |
| 包装： | 带卷 (TR) |
第1页第2页当前第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页第38页第39页第40页第41页第42页
ISL62882, ISL62882B
Functional Pin Descriptions
ISL62882
-
1
ISL62882B
7
2
SYMBOL
GND
PGOOD
DESCRIPTION
Signal common of the IC. Unless otherwise stated, signals are referenced to the GND pin.
Power-Good open-drain output indicating when the regulator is able to supply regulated voltage.
Pull-up externally with a 680 Ω resistor to VCCP or 1.9k Ω to 3.3V.
2
3
3
4
PSI#
RBIAS
Low load current indicator input. When asserted low, indicates a reduced load current condition.
A resistor to GND sets internal current reference. Use 147k Ω or 47k Ω . The choice of Rbias value,
together with the ISEN2 pin configuration and the external resistance from the COMP pin to GND,
programs the controller to enable/disable the overshoot reduction function and to select the
CPU/GPU mode.
4
5
6
5
6
8
VR_TT#
NTC
VW
Thermal overload output indicator.
Thermistor input to VR_TT# circuit.
A resistor from this pin to COMP programs the switching frequency (8k Ω gives approximately
300kHz).
7
9
COMP
This pin is the output of the error amplifier. Also, a resistor across this pin and GND adjusts the
overcurrent threshold.
8
9
10
11
FB
FB2
This pin is the inverting input of the error amplifier.
There is a switch between the FB2 pin and the FB pin. The switch is on in 2-phase mode and is
off in 1-phase mode. The components connecting to FB2 are used to adjust the compensation
in 1-phase mode to achieve optimum performance.
10
13
ISEN2
Individual current sensing for Phase 2. When ISEN2 is pulled to 5V VDD, the controller will
disable Phase 2.
11
12
13
14, 15
16
17
18
19
14
15
16
17, 18
19
20
22
24
ISEN1
VSEN
RTN
ISUM- and ISUM+
VDD
VIN
IMON
BOOT1
Individual current sensing for phase 1.
Remote core voltage sense input. Connect to microprocessor die.
Remote voltage sensing return. Connect to ground at microprocessor die.
Droop current sense input.
5V bias power.
Battery supply voltage, used for feed-forward.
An analog output. IMON outputs a current proportional to the regulator output current.
Connect an MLCC capacitor across the BOOT1 and the PHASE1 pins. The boot capacitor is
charged through an internal boot diode connected from the VCCP pin to the BOOT1 pin, each
time the PHASE1 pin drops below VCCP minus the voltage dropped across the internal boot
diode.
20
25
UGATE1
Output of the Phase-1 high-side MOSFET gate driver. Connect the UGATE1 pin to the gate of the
Phase-1 high-side MOSFET.
21
26
PHASE1
Current return path for the Phase-1 high-side MOSFET gate driver. Connect the PHASE1 pin to the
node consisting of the high-side MOSFET source, the low-side MOSFET drain, and the output
inductor of Phase-1.
22
27
VSSP1
Current return path for the Phase-1 low-side MOSFET gate driver. Connect the VSSP1 pin to the
source of the Phase-1 low-side MOSFET through a low impedance path, preferably in parallel
with the traces connecting the LGATE1a and the LGATE1b pins to the gates of the Phase-1
low-side MOSFETs.
23
28
LGATE1a
Output of the Phase-1 low-side MOSFET gate driver that is always active. Connect the LGATE1a
pin to the gate of the Phase-1 low-side MOSFET that is active all the time.
24
29
LGATE1b
Another output of the Phase-1 low-side MOSFET gate driver. This gate driver will be pulled low
when the DPRSLPVR pin logic is high. Connect the LGATE1b pin to the gate of the Phase-1
low-side MOSFET that is idle in deeper sleep mode.
-
-
LGATE1
Output of the Phase-1 low-side MOSFET gate driver. Connect the LGATE1 pin to the gate of the
Phase-1 low-side MOSFET.
3
FN6890.4
June 21, 2011
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相关代理商/技术参数 |
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| ISL62882CEVAL2Z | 功能描述:EVAL BOARD FOR ISL62882C 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 |
| ISL62882CHRTZ | 功能描述:电流型 PWM 控制器 2 PHS PWM BUCKG FOR MICROPROC PWR SUP RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL62882CHRTZ-T | 功能描述:电流型 PWM 控制器 2 PHS PWM BUCKG FOR MICROPROC PWR SUP RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL62882CIRTZ | 功能描述:电流型 PWM 控制器 2 PHS PWM BUCKG FOR MICROPROC PWR SUP RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ISL62882CIRTZ-T | 功能描述:电流型 PWM 控制器 2 PHS PWM BUCKG FOR MICROPROC PWR SUP RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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