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参数资料
| 型号： | ISL6128IRZA-T |
| 厂商： | Intersil |
| 文件页数： | 18/23页 |
| 文件大小： | 0K |
| 描述： | IC POWER SUPPLY SEQUENCER 24QFN |
| 标准包装： | 6,000 |
| 应用： | 电源序列发生器 |
| 电源电压： | 1.5 V ~ 5.5 V |
| 电流 - 电源： | 200µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘 |
| 供应商设备封装： | 24-QFN 裸露焊盘（4x4） |
| 包装： | 带卷 (TR) |
ISL6123, ISL6124, ISL6125, ISL6126, ISL6127, ISL6128, ISL6130
ISL6131 or ISL6132
MONITORING
ON ALL RAILS
PGOOD VMON
SYSRST
ISL6124
OE
LOW = RESET
UVLO
OE
LOW = RESET
en
#N
UVLO
RESET
ENABLE
G
A
T
E
en
SYSRST
ISL6124
#N
UVLO
RESET
G
A
T
E
ENABLE
ENABLE
RESET
SYSRST
ENABLE
ISL6125
# N+1
L
O
RESET
SYSRST
POWER
SUPPLY
RESET
UVLO
G
I
C
POWER
SUPPLY
ISL6125
# N+1
RESET
L
O
G
I
UVLO
C
FIGURE 19. ISL612X AND ISL613X VOLTAGE COMPLIANT
SEQUENCING BLOCK DIAGRAM
If the mere presence of some voltage potential is adequate prior
to sequencing on, then a small number of standard logic and
gates can be used to accomplish this. The block diagram in
Figure 20 illustrates this voltage presence configuration.
In either case, the sequencing is straightforward across multiple
sequencers, as all DLY_ON capacitors simultaneously start
charging ~10ms after the common ENABLE input signal is
delivered. This allows the choice of capacitors to be related to
each other and is no different than using a single sequencer.
When the common enabling signal is de-asserted, these
configurations execute the turn-off sequence across all
sequencers as programmed by the DLY_OFF capacitor values.
In both cases, with all the SYSRST pins bused together, once the
turn-on sequence is complete, simultaneous shutdown upon any
UVLO input failure is assured. SYSRST output momentarily pulls
low and turns off all GATE and LOGIC outputs.
Some applications may require or allow groups of supplies to be
brought up in sequence and for supplies within each group to be
sequenced. Figure 21 shows a configuration that allows the first
group of supplies to turn on before the go second group starts.
18
FIGURE 20. MULTIPLE ISL612X USING LOGIC GATES FOR
VOLTAGE PRESENCE DETECT
This arrangement does not necessarily preclude adding the
assurance of all supplies prior to turn-on sequencing, as
previously shown. It does prevent the turn-on sequence from
completing, if there is one unsatisfied UVLO input in a group.
This configuration involves waiting through the T UVLOdel and
T RSTdel (total of ~160ms) for each sequencer IC in the chain
before the final RESET releases. Once ENABLE on the first
sequencer is de-asserted, all RESET outputs quickly pull low. This
allows the sequenced turn-off of this configuration to ripple
through several banks as quickly as the user-programmed (by
DLY_OFF) sequence capacitors allow.
Again, with common bused SYSRTS pins, simultaneous
shutdown of all GATEs and LOGIC down upon an unsatisfied UVLO
input is assured, once all FETs or LOGIC outputs are on. If a GATE
drive option IC is used to drive both FETs and logic signals, then
care must be taken to ensure the charged pump GATE does not
overdrive and damage the logic input. A simple resistor divider
can be used to lower the GATE to a suitable voltage for the logic
input, as shown in Figure 21.
FN9005.12
September 26, 2012
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL612XSEQEVAL1 | 功能描述:EVALUATION BOARD FOR ISL612XSEQ RoHS:否 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板 |
| ISL612XSEQEVAL1Z | 功能描述:EVALUATION BOARD ISL612XSEQ RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板 |
| ISL6130 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Power Sequencing Controllers |
| ISL6130IRZA | 功能描述:IC POWER SUPPLY SEQUENCER 24QFN RoHS:是 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) |
| ISL6130IRZA-T | 功能描述:IC POWER SUPPLY SEQUENCER 24QFN RoHS:是 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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