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参数资料
| 型号： | ISL6506ACB |
| 厂商： | Intersil |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | IC MULTIPLE POWER CTRLR 8LEPSOIC |
| 标准包装： | 98 |
| 应用： | 电源控制器/监控器 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 电流 - 电源： | 3.6mA |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm Width）裸露焊盘 |
| 供应商设备封装： | 8-SOIC-EP |
| 包装： | 管件 |
ISL6506, ISL6506A, ISL6506B
5VSB
S3
S5
3.3V, 5V, 12V
5VSB
(1V/DIV)
12VATX (2V/DIV)
5VATX (1V/DIV)
3.3VATX (1V/DIV)
3.3VDUAL
(2V/DIV)
DLA
5VDUAL
3V3DL
5VDLSB
5VDL
0V
(1V/DIV)
DLA
(10V/DIV)
FIGURE 2. 5V DUAL AND 3.3V AUX TIMING DIAGRAM;
t0
t1
t2
t3
t4 t5
t6
ISL6506A
Soft-Start
Figures 3 and 4 show the soft-start sequence for the typical
application start-up into a sleep state. At time t0, 5V SB (bias)
is applied to the circuit. At time t1, the 5V SB surpasses POR
TIME
FIGURE 3. ISL6506 AND ISL6506B SOFT-START INTERVAL
IN S4/S5 STATE AND S5 TO S0 TRANSITION
level. Time t2, one soft-start interval after t1, denotes the
initiation of soft-start. The 3.3V DUAL rail is brought up
through the internal standby LDO through an internal digital
soft-start function. Figure 4 shows the 5V DUAL rail initiating a
soft-start at time t2 as well. The ISL6506A will draw 7.5μA
into the 5VDLSB for a duration of one soft-start period. This
5VSB
(1V/DIV)
5VDUAL
(1V/DIV)
3.3VDUAL
(2V/DIV)
current will enhance the P-MOSFET (Q 2 , refer to
the 3.3V DUAL is in regulation and the 5VDLSB pin is pulled
down to ground. If the 5V DUAL rail has not reached the level
of the 5V SB rail by time t3, then the rail will experience a
sudden step as the P-MOSFET gate is fully enhanced. The
0V
12VATX (2V/DIV)
5VATX (1V/DIV)
3.3VATX (1V/DIV)
soft-start profile of the 5V DUAL may be altered by placing a
capacitor between the gate and drain of the P-MOSFET.
Adding this capacitor will increase the gate capacitance and
5VDLSB
(5V/DIV)
DLA
(10V/DIV)
slow down the start of the 5V DUAL rail.
t0
t1
t2
t3
t4 t5
TIME
t6
At time t4, the system has transitioned into S0 state and the
ATX supplies have begun to ramp-up. With the ISL6506,
ISL6506B (Figure 3), the 5V DUAL rail will begin to ramp-up
from the 5V ATX rail through the body diode of the N-MOSFET
(Q 3 ). The ISL6506A will already have the 5V DUAL rail in
regulation (Figure 4). At time t5, the 12V ATX rail has
surpassed the 12V POR level. Time t6 is three soft-start
cycles after the 12V POR level has been surpassed. At time
t6, three events occur simultaneously. The DLA pin is forced
to a high impedance state which allows the 12V rail to
enhance the two N-MOSFETs (Q 1 and Q 3 ) that connect the
ATX rails to the 3.3V DUAL and 5V DUAL rails. The 5VDLSB pin
is actively pulled high, which will turn the P-MOSFET (Q 2 ) off.
Finally, the internal LDO which regulates the 3.3V AUX rail in
sleep states is put in standby mode.
5
FIGURE 4. SOFT-START INTERVAL FOR ISL6506A IN S4/S5
AND S5 TO S0 TRANSITION FOR ISL6506A AND
S3 TO S0 TRANSITION FOR ISL6506, ISL6506A,
ISL650B
Sleep to Wake State Transitions
Figures 3 and 4, starting at time t4, depict the transitions
from sleep states to the S0 wake state. Figure 3 shows the
transition of the ISL6506, ISL6506B from the S4/S5 state to
the S0 state. Figure 4 shows how the ISL6506, ISL6506B
will transition from the S3 sleep state into S0 state. Figure 3
also shows how the ISL6506A transitions from either S3 or
S4/S5 in the S0 state. For all transitions, t4 depicts the
system transition into the S0 state. Here, the ATX supplies
are enabled and begin to ramp up. At time t5, the 12V ATX rail
has exceeded the POR threshold for the ISL6506, ISL6506B
and ISL6506A. Three soft-start periods after time t5, at time
t6, three events occur simultaneously. The DLA pin is forced
FN9141.6
September 12, 2013
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| ISL6506ACB-T | 功能描述:IC MULTIPLE POWER CTRLR 8LEPSOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°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) |
| ISL6506ACBZ | 功能描述:DC/DC 开关控制器 2 OUTPUT ACPI PWR CNTRLR 8LD EP RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| ISL6506ACBZ-T | 功能描述:DC/DC 开关控制器 ISL6506A 2 OUTPUT ACPI CNTRLR 8L EP RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| ISL6506BCB | 功能描述:IC CTRLR PWR MULT LIN 2A 8EPSOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°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) |
| ISL6506BCB-T | 功能描述:IC MULTIPLE POWER CTRLR 8LEPSOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电源控制器，监视器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 应用:多相控制器 输入电压:- 电源电压:9 V ~ 14 V 电流 - 电源:- 工作温度:-40°C ~ 85°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) |
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