- 您现在的位置：买卖IC网 > PDF目录15167 > ZL2008ALBFT1 (Intersil)IC REG CTRLR BUCK PWM VM 36-QFN PDF资料下载
参数资料
| 型号： | ZL2008ALBFT1 |
| 厂商： | Intersil |
| 文件页数： | 34/42页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 36-QFN |
| 标准包装： | 1,000 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 1.4MHz |
| 占空比： | 95% |
| 电源电压： | 3 V ~ 5.5 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： | 36-VFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
第1页第2页第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页当前第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
ZL2008
R CFG0
(k Ω )
TABLE 30. Current Share Resistor Settings
Current Share # of
NLR Members Current Sharing
The phase offset of a current sharing group is automatically set
to a value between 0° and 337.5° in 22.5° increments as
follows:
10
11
2
3
Phase Offset = (SMBus Address[4:0] – Current Share
Position) * 22.5°
(EQ. 37)
12.1
13.3
14.7
16.2
17.8
19.6
21.5
23.7
26.1
28.7
31.6
34.8
38.3
42.2
46.4
51.1
56.2
61.9
68.1
75
82.5
90.9
100
110
121
133
147
162
178
Disabled
3%
2%
1.5%
4
5
6
7
8
0
2
3
4
5
6
7
8
0
2
3
4
5
6
7
8
0
2
3
4
5
6
7
8
Enabled
Disabled
Enabled
Disabled
Enabled
Disabled
Enabled
The phase of the individual members in a group are spread
evenly from the phase offset of the group.
Please refer to Application Note AN2034 for additional details on
current sharing.
Phase Adding/Dropping
The ZL2008 allows multiple power converters to be connected in
parallel to supply higher load currents than can be addressed
using a single-phase design. In doing so, the power converter is
optimized at a load current range that requires all phases to be
operational. During periods of light loading, it may be beneficial
to disable one or more phases in order to eliminate the current
drain and switching losses associated with those phases,
resulting in higher efficiency.
The ZL2008 offers the ability to add and drop phases using a the
phase enable pin or a PMBus command in response to an
observed load current change. All phases in a current share rail
are considered active prior to the current sharing rail ramp to
power-good.
Phases can be dropped after power-good is reached. The phase
enable pin can be used to drop and add phases:
? Set PH_EN = 0 to drop a phase
? Set PH_EN = 1 to add a phase
The time to detect a change of state of the phase enable pin is
between 0ms and 3ms (max).
Any member of the current sharing rail can be dropped. If the
reference device is dropped, the remaining active device with the
lowest member position will become the new reference.
Additionally, any change to the number of members of a current
sharing rail will precipitate autonomous phase distribution within
the rail where all active phases realign their phase position
based on their order within the number of active members.
If the members of a current sharing rail are forced to shut down
due to an observed fault, all members of the rail will attempt to
re-start simultaneously after the fault has cleared.
For single phase operation, that is, not current sharing, the
PH_EN pin is ignored and can be left open.
34
FN6859.4
April 29, 2011
相关PDF资料 |
PDF描述 |
|---|---|
| VE-B5Y-EX-F4 | CONVERTER MOD DC/DC 3.3V 49.5W |
| ZL6100ALAFTK | IC REG CTRLR BUCK PWM VM 36-QFN |
| VE-B5Y-EX-F3 | CONVERTER MOD DC/DC 3.3V 49.5W |
| ZL6100ALAFT | IC REG CTRLR BUCK PWM VM 36-QFN |
| VE-B5Y-EX-F2 | CONVERTER MOD DC/DC 3.3V 49.5W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ZL2008EVAL1Z | 功能描述:EVALUATION BOARD FOR ZL2008 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 |
| ZL20200 | 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:Dual Band IS136/AMPS Transceiver |
| ZL20200_06 | 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:Dual Band IS136/AMPS Transceiver |
| ZL20200LCE | 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:Dual Band IS136/AMPS Transceiver |
| ZL20200LCF | 制造商:ZARLINK 制造商全称:Zarlink Semiconductor Inc 功能描述:Dual Band IS136/AMPS Transceiver |
发布紧急采购，3分钟左右您将得到回复。