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参数资料
| 型号： | HIP6006EVAL1 |
| 厂商： | Intersil |
| 文件页数： | 5/12页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD HIP6006 |
| 应用说明： | HIP6006/07 PWM Controller ICs AppNote |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 2.5V |
| 电流 - 输出： | 9A |
| 输入电压： | 10.8 ~ 13.2 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 200kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | HIP6006 |
HIP6006
LGATE (Pin 12)
Connect LGATE to the lower MOSFET gate. This pin
provides the gate drive for the lower MOSFET.
PVCC (Pin 13)
Provide a bias supply for the lower gate drive to this pin.
VCC (Pin 14)
Provide a 12V bias supply for the chip to this pin.
SOFT-START
(1V/DIV)
Functional Description
Initialization
0V
0V
OUTPUT
VOLTAGE
(1V/DIV)
The HIP6006 automatically initializes upon receipt of power.
t1
t2
t3
Special sequencing of the input supplies is not necessary.
The Power-On Reset (POR) function continually monitors
the input supply voltages and the enable (EN) pin. The POR
monitors the bias voltage at the VCC pin and the input
voltage (V IN ) on the OCSET pin. The level on OCSET is
equal to V IN Less a fixed voltage drop (see over-current
protection). With the EN pin held to V CC , the POR function
initiates soft start operation after both input supply voltages
exceed their POR thresholds. For operation with a single
+12V power source, V IN and V CC are equivalent and the
+12V power source must exceed the rising V CC threshold
before POR initiates operation.
The Power-On Reset (POR) function inhibits operation with
the chip disabled (EN pin low). With both input supplies
above their POR thresholds, transitioning the EN pin high
initiates a soft start interval.
Soft Start
The POR function initiates the soft start sequence. An internal
10 μ A current source charges an external capacitor (C SS ) on
the SS pin to 4V. Soft start clamps the error amplifier output
(COMP pin) and reference input (+ terminal of error amp) to
the SS pin voltage. Figure 3 shows the soft start interval with
C SS = 0.1 μ F. Initially the clamp on the error amplifier (COMP
pin) controls the converter’s output voltage. At t1 in Figure 3,
the SS voltage reaches the valley of the oscillator’s triangle
wave. The oscillator’s triangular waveform is compared to the
ramping error amplifier voltage. This generates PHASE
pulses of increasing width that charge the output capacitor(s).
This interval of increasing pulse width continues to t2. With
sufficient output voltage, the clamp on the reference input
controls the output voltage. This is the interval between t2 and
t3 in Figure 3. At t3 the SS voltage exceeds the reference
voltage and the output voltage is in regulation. This method
provides a rapid and controlled output voltage rise.
TIME (5ms/DIV)
FIGURE 3. SOFT-START INTERVAL
4V
2V
0V
15A
10A
5A
0A
TIME (20ms/DIV)
FIGURE 4. OVER-CURRENT OPERATION
Over-Current Protection
The over-current function protects the converter from a
shorted output by using the upper MOSFETs on-resistance,
r DS(ON) to monitor the current. This method enhances the
converter ’s efficiency and reduces cost by eliminating a
current sensing resistor.
The over-current function cycles the soft-start function in a
hiccup mode to provide fault protection. A resistor (R OCSET )
programs the over-current trip level. An internal 200 μ A
(typical) current sink develops a voltage across R OCSET that
is reference to V IN . When the voltage across the upper
MOSFET (also referenced to V IN ) exceeds the voltage
across R OCSET , the over-current function initiates a soft-
start sequence. The soft-start function discharges C SS with
a 10 μ A current sink and inhibits PWM operation. The soft-
start function recharges C SS , and PWM operation resumes
with the error amplifier clamped to the SS voltage. Should an
overload occur while recharging C SS , the soft start function
inhibits PWM operation while fully charging C SS to 4V to
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HIP6007 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Buck Pulse-Width Modulator (PWM) Controller |
| HIP6007CB | 功能描述:IC CTRLR PWM STD BUCK 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| HIP6007CB-T | 功能描述:IC CTRLR PWM STD BUCK 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - 专用型 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,000 系列:- 应用:电源，ICERA E400，E450 输入电压:4.1 V ~ 5.5 V 输出数:10 输出电压:可编程 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:42-WFBGA，WLCSP 供应商设备封装:42-WLP 包装:带卷 (TR) |
| HIP6007EVAL1 | 制造商:Intersil Corporation 功能描述:EVAL KIT FOR BUCK PULSE-WIDTH MODULATOR (PWM) CNTRLR - Bulk |
| HIP6008 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor |
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