- 您现在的位置：买卖IC网 > PDF目录15183 > HIP6302CBZA-T (Intersil)IC REG CTRLR BUCK PWM 16-SOIC PDF资料下载
参数资料
| 型号： | HIP6302CBZA-T |
| 厂商： | Intersil |
| 文件页数： | 9/16页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 16-SOIC |
| 标准包装： | 2,500 |
| PWM 型： | 控制器 |
| 输出数： | 2 |
| 频率 - 最大： | 305kHz |
| 电源电压： | 4.75 V ~ 5.25 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 包装： | 带卷 (TR) |
HIP6302
Figure 5 shows the regulator operating from an ATX supply.
In this figure, note the slight rise in PGOOD as the 5V supply
rises.The PGOOD output stage is made up of NMOS and
PMOS transistors. On the rising V CC , the PMOS device
becomes active slightly before the NMOS transistor pulls
“down”, generating the slight rise in the PGOOD voltage.
Note that Figure 5 shows the 12V gate driver voltage
available before the 5V supply to the HIP6302 has reached
its threshold level. If conditions were reversed and the 5V
supply was to rise first, the start-up sequence would be
different. In this case the HIP6303 will sense an over-current
condition due to charging the output capacitors. The supply
.
12V ATX
SUPPLY
PGOOD
V CORE
5 V ATX
SUPPLY
will then restart and go through the normal Soft-Start cycle.
V IN = 5V, CORE LOAD CURRENT = 31A
FREQUENCY 200kHz
PWM 1
OUTPUT
ATX SUPPLY ACTIVATED BY ATX “PS-ON PIN”
FIGURE 5. SUPPLY POWERED BY ATX SUPPLY
DELAY TIME
PGOOD
V CORE
5V
V CC
Fault Protection
The HIP6302 protects the microprocessor and the entire
power system from damaging stress levels. Within the
HIP6302 both Over-Voltage and Over-Current circuits are
incorporated to protect the load and regulator.
Over-Voltage
The VSEN pin is connected to the microprocessor CORE
voltage. A CORE over-voltage condition is detected when
the VSEN pin goes more than 15% above the programmed
V IN = 12V
FIGURE 3. START-UP OF 4 PHASE SYSTEM OPERATING AT
500kHz
V COMP
DELAY TIME
PGOOD
V CORE
5V
V CC
V IN = 12V
FIGURE 4. START-UP OF 4 PHASE SYSTEM OPERATING AT
200kHz
9
VID level.
The over-voltage condition is latched, disabling normal PWM
operation, and causing PGOOD to go low. The latch can
only be reset by lowering and returning V CC high to initiate a
POR and Soft-Start sequence.
During a latched over-voltage, the PWM outputs will be
driven either low or three state, depending upon the VSEN
input. PWM outputs are driven low when the VSEN pin
detects that the CORE voltage is 15% above the
programmed VID level. This condition drives the PWM
outputs low, resulting in the lower or synchronous rectifier
MOSFETs to conduct and shunt the CORE voltage to
ground to protect the load.
If after this event, the CORE voltage falls below the over-
voltage limit (plus some hysteresis), the PWM outputs will
three state. The HIP6601 family drivers pass the three state
information along, and shuts off both upper and lower
MOSFETs. This prevents “dumping” of the output capacitors
back through the lower MOSFETS, avoiding a possibly
destructive ringing of the capacitors and output inductors. If
the conditions that caused the over-voltage still persist, the
PWM outputs will be cycled between three state and V CORE
clamped to ground, as a hysteretic shunt regulator.
FN4766.3
December 27, 2004
相关PDF资料 |
PDF描述 |
|---|---|
| VI-2TR-EW-F4 | CONVERTER MOD DC/DC 7.5V 100W |
| HIP6302CBZ-T | IC REG CTRLR BUCK PWM 16-SOIC |
| ABB06DHFD | CONN EDGECARD 12POS .050 SMD |
| AFK227M63H32B-F | CAP ALUM 220UF 63V 20% SMD |
| RBM24DCTI-S288 | CONN EDGECARD 48POS .156 EXTEND |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HIP6302CBZ-T | 功能描述:电流型 PWM 控制器 VER OF HIP6302CB-T 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 |
| HIP6302EVAL1 | 功能描述:电源管理IC开发工具 HIP6302 EVAL BRD FOR 45A ATHLON RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| HIP6302V | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller |
| HIP6302VCB | 功能描述:IC REG CTRLR BUCK PWM 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| HIP6302VCB-T | 功能描述:IC REG CTRLR BUCK PWM 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。