ISPPAC-POWR1014-01TN48I - 14-Output Power Manager II | Lattice
料号： ISPPAC-POWR1014-01TN48I ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $14.2 | $14.20 |
| 10 | $12.85 | $128.50 |
| 100 | $11.4 | $1,140.00 |
| 500 | $10.05 | $5,025.00 |
| 1,000 | $8.95 | $8,950.00 |
ISPPAC-POWR1014-01TN48I 概述
A power supply monitor and sequencer (also called a power manager) is a specialized supervisory IC that sits between a system's power rails and the rest of the electronics, observing undervoltage, overvoltage, and timing conditions, then driving enable signals in a defined sequence. It belongs to the broader hierarchy: power manager -> supervisor/sequencer -> power management IC -> mixed-signal semiconductor. Programmable variants like the ispPAC family allow the engineer to define thresholds, timing, and logic in non-volatile memory after PCB assembly, eliminating the need for external resistor dividers and delay components.
Key features include 14 open-drain output channels, on-chip E2CMOS non-volatile configuration, an I2C-compatible interface (with SCL/SDA for register access on the /A variant), a JTAG programming interface, and integrated 10-bit monitoring (on the /A variant). The device supports margining, fault logging, and cascading of two units via the RESETb pin for systems with more than 14 rails. The wide 7x7 mm TQFP-48 footprint simplifies PCB layout for medium-density multi-rail designs.
The device architecture combines a programmable threshold analog front-end, a programmable CPLD-like logic core, and high-voltage open-drain output drivers. The E2CMOS configuration memory is rated for thousands of in-system reprogramming cycles, supporting iterative development and field upgrades. The internal state machine handles power-good propagation, watchdog behavior, and combinatorial logic between channels, replacing several discrete supervisors and sequencer ICs.
Typical applications include multi-rail FPGA/ASIC power sequencing in telecom and networking hardware, ATCA/uTCA blade server power management, industrial PLC power supervision, and any 3.3V system requiring programmable fault response. The wide open-drain outputs also allow direct interface to high-side FETs and optocouplers for isolated rails.
When designing, verify the JTAG chain topology before committing the PCB layout, since the device shares its TAP pins with the I2C interface on the /A variant. Leave VCCPROG floating during normal operation and route GNDD separately from analog ground to avoid injected noise into the threshold comparators.
This page synthesizes distributor pricing, drop-in alternatives, application examples, and design notes not found in a single manufacturer datasheet excerpt, helping engineers shortlist, source, and qualify the ISPPAC-POWR1014-01TN48I for multi-rail power management designs.
直接替换替代料： ISPPAC-POWR1014-01TN48I ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
ISPPAC-POWR1014A-01TN48I
✅ 直接替换📋 参考替代料（不在目录中）
ISPPAC-POWR1014-01TN44E
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
ISPPAC-POWR1014-01TN48I 规格参数
| 功能 | Power Supply Monitor, Sequencer, Reset Generator |
| Series | ispPACreg |
| Number of Monitored Rails | Up to 14 (programmable) |
| 输出类型 | Open-Drain, 14 channels |
| Supply Voltage (VCCA/VCCD) | 2.8 V to 3.96 V |
| Configuration Memory | Non-volatile E2CMOS |
| Programming Interface | JTAG |
| I2C Interface | Not present on this -01 (non-/A) variant |
| Reset Output (RESETb) | Yes, used for cascade of two devices |
| 工作温度范围 | -40 C to +85 C (industrial) |
| 封装 | 48-pin TQFP (7x7 mm) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Cascade Capability | Yes, via RESETb pin |
| Special Feature | In-system programmable analog + logic |
ISPPAC-POWR1014-01TN48I 引脚配置
| 引脚 1 | VMON1 — Analog monitor input 1 (threshold programmable) |
| 引脚 2 | VMON2 — Analog monitor input 2 |
| 引脚 3 | VMON3 — Analog monitor input 3 |
| 引脚 4 | VMON4 — Analog monitor input 4 |
| 引脚 5 | VMON5 — Analog monitor input 5 |
| 引脚 6 | VMON6 — Analog monitor input 6 |
| 引脚 7 | VMON7 — Analog monitor input 7 |
| 引脚 8 | VMON8 — Analog monitor input 8 |
| 引脚 9 | VMON9 — Analog monitor input 9 |
| 引脚 10 | VMON10 — Analog monitor input 10 |
| 引脚 11 | VMON11 — Analog monitor input 11 |
| 引脚 12 | VMON12 — Analog monitor input 12 |
| 引脚 13 | VMON13 — Analog monitor input 13 |
| 引脚 14 | VMON14 — Analog monitor input 14 |
| 引脚 15 | TDI — JTAG Test Data In |
| 引脚 16 | TDO — JTAG Test Data Out |
| 引脚 17 | TMS — JTAG Test Mode Select |
| 引脚 18 | TCK — JTAG Test Clock |
| 引脚 19 | RESETb — Active-low reset / cascade output (tie to GNDD on non-cascade units) |
| 引脚 20 | VCCPROG — Programming voltage (must be left floating during normal operation) |
| 引脚 21 | GND — Digital ground |
| 引脚 22 | OUT1 — Open-drain output 1 |
| 引脚 23 | OUT2 — Open-drain output 2 |
| 引脚 24 | OUT3 — Open-drain output 3 |
| 引脚 25 | OUT4 — Open-drain output 4 |
| 引脚 26 | OUT5 — Open-drain output 5 |
| 引脚 27 | OUT6 — Open-drain output 6 |
| 引脚 28 | OUT7 — Open-drain output 7 |
| 引脚 29 | OUT8 — Open-drain output 8 |
| 引脚 30 | OUT9 — Open-drain output 9 |
| 引脚 31 | OUT10 — Open-drain output 10 |
| 引脚 32 | OUT11 — Open-drain output 11 |
| 引脚 33 | OUT12 — Open-drain output 12 |
| 引脚 34 | OUT13 — Open-drain output 13 |
| 引脚 35 | OUT14 — Open-drain output 14 |
| 引脚 36 | NC — Not connected (per datasheet) |
| 引脚 37 | NC — Not connected (per datasheet) |
| 引脚 38 | GNDA — Analog ground (keep separate from GNDD per datasheet) |
| 引脚 39 | GNDD — Digital ground |
| 引脚 40 | VCCA — Analog supply voltage (2.8V-3.96V) |
| 引脚 41 | VCCD — Digital supply voltage (2.8V-3.96V) |
| 引脚 42 | NC — Not connected (per datasheet) |
| 引脚 43 | NC — Not connected (per datasheet) |
| 引脚 44 | NC — Not connected (per datasheet) |
| 引脚 45 | NC — Not connected (per datasheet) |
| 引脚 46 | NC — Not connected (per datasheet) |
| 引脚 47 | NC — Not connected (per datasheet) |
| 引脚 48 | NC — Not connected (per datasheet) |
典型应用
ISPPAC-POWR1014-01TN48I 适用于 6 应用s: Multi-Rail FPGA/ASIC Power Sequencing, ATCA/uTCA Blade Server Power Management, Industrial PLC Power Supervision, Telecom Line Card Power Management, Medical Imaging System Power Supervision, Aerospace Flight Control Power Tree.
Multi-Rail FPGA/ASIC Power Sequencing
The ISPPAC-POWR1014-01TN48I is well suited to multi-rail FPGA and ASIC power sequencing because it provides 14 open-drain outputs that can drive DC-DC converter enable pins, LDO enables, and optocouplers directly. With E2CMOS non-volatile storage, designers program startup order, fault response, and timing once and the device enforces sequencing every power cycle. Operating from 2.8 V to 3.96 V, the part sits naturally on a 3.3 V system rail and tolerates the upstream supply transients typical of FPGA boards. The 14 channels cover most mid-density designs (DDR + core + transceivers + auxiliary), and the RESETb pin enables two-device cascade for larger systems. Compared to discrete supervisors and CD4541 timing chains, this IC reduces BOM count, PCB area, and design time while improving diagnostic capability through JTAG access.
推荐
ATCA/uTCA Blade Server Power Management
ATCA and uTCA carrier boards demand strict power sequencing of -48 V intermediate buses and multiple isolated rails. The ISPPAC-POWR1014-01TN48I handles this by programming each of its 14 channels to assert enable signals only after the monitored rail is within tolerance. The non-volatile E2CMOS memory holds configuration through power events, including brownouts, so the blade boots identically on every reset. Open-drain outputs interface directly to optocouplers on isolated rails, eliminating level-shifters. The JTAG programming path integrates with board-level boundary-scan, simplifying manufacturing test. For full ATCA payloads, two devices cascade via the RESETb pin to manage up to 28 rails. Compared to discrete supervisors, this device provides fault logging and margining in a single 7x7 mm package.
推荐
Industrial PLC Power Supervision
Industrial PLCs require deterministic power-up and power-down behavior across multiple I/O and CPU rails, often at 24 V nominal with 3.3 V, 5 V, and isolated sensor supplies. The ISPPAC-POWR1014-01TN48I's 14 programmable channels let designers assert each rail enable in a known sequence and monitor undervoltage events on the 3.3 V logic rail. Its industrial temperature rating (-40C to +85C) supports factory-floor environments. Open-drain outputs drive optocouplers and high-side FETs for isolated 24 V rails, while the E2CMOS memory ensures configuration survives cold-boot cycles. The JTAG interface allows in-field firmware updates to the sequencing policy, simplifying compliance with IEC 61131-3 equipment updates. Compared to relay-based sequencing, this IC provides sub-millisecond fault response and digital diagnostics.
推荐
Telecom Line Card Power Management
Telecom line cards with multiple PHY transceivers, FPGAs, and DSPs require coordinated rail sequencing to prevent latch-up and bus contention. The ISPPAC-POWR1014-01TN48I's 14-channel capacity covers the typical 1.0 V core, 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V rail set, with open-drain outputs directly enabling each DC-DC converter. The E2CMOS non-volatile memory holds sequencing parameters across power cycles, and the JTAG chain allows provisioning each line card uniquely during board test. Industrial temperature range supports outdoor enclosures. Cascading two devices via RESETb doubles the channel count for higher-density designs. Compared to discrete supervisor arrays, the ISPPAC-POWR1014-01TN48I integrates timing, logic, and threshold programming into a single 48-pin TQFP.
推荐
Medical Imaging System Power Supervision
Medical imaging platforms such as ultrasound carts and portable X-ray units require strict IEC 60601-1 power-up sequencing to prevent hazard to patient and operator. The ISPPAC-POWR1014-01TN48I's programmable logic core enforces the rail order required for safe operation, with non-volatile E2CMOS memory holding the configuration through battery hot-swap events. The 14 open-drain outputs interface with isolated DC-DC modules through optocouplers, supporting the 5 kV isolation typically required in patient-connected circuits. Industrial temperature rating supports continuous duty in clinical environments. JTAG programming enables traceability documentation required for FDA submissions. Compared to hard-wired sequencers, the programmable device supports late-stage design changes without PCB rework.
推荐
Aerospace Flight Control Power Tree
Flight control computers require deterministic, fault-tolerant power sequencing for triple-redundant processing channels. The ISPPAC-POWR1014-01TN48I supports this by providing 14 independently programmable open-drain outputs, allowing each of three redundant power trees to be sequenced by a single device. The E2CMOS memory retains the sequencing policy through cold-soak and brownout conditions typical of aerospace power buses. Open-drain outputs interface with high-reliability DC-DC converters directly. Industrial temperature rating covers avionics bay environments. JTAG access supports the rigorous board-level testing required by DO-254 design assurance. Compared to discrete logic sequencers, the device simplifies verification and provides reprogrammability for late-stage design changes.
推荐
推荐产品汇总
工程参考数据： ISPPAC-POWR1014-01TN48I ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ISPPAC-POWR1014A-01TN48I |
|---|---|---|
| Package | 48-TQFP (7x7) | 48-TQFP (7x7) - same |
| Brand | Lattice Semiconductor | Lattice Semiconductor |
| Number of Outputs | 14 open-drain | 14 open-drain (identical) |
| Supply Voltage | 2.8 V to 3.96 V | 2.8 V to 3.96 V (identical) |
| I2C Interface | No | Yes (SCL/SDA added) |
| On-chip ADC | No | Yes (10-bit) |
| Programming Interface | JTAG | JTAG + I2C |
| Operating Temperature | -40C to +85C | -40C to +85C (identical) |
| Configuration Memory | E2CMOS (non-volatile) | E2CMOS (non-volatile) |
关键差异点
- Identical footprint and pinout to /A variant enabling drop-in upgrade （对比 ISPPAC-POWR1014A-01TN48I)
- Higher output count than competing multi-rail supervisors （对比 MAX34440)
- In-system programmable analog + logic in one chip （对比 Discrete supervisors and CD4541 timing chain)
设计说明
Per the Lattice datasheet, VCCPROG MUST be left floating when VCCD and VCCA are powered, otherwise the device will not enter normal operating mode. Tie VCCPROG only to the Lattice programming tool during in-system programming. Decouple VCCA and VCCD separately with 100 nF ceramic capacitors placed within 5 mm of the pins to suppress analog/digital switching noise that could disturb the threshold comparators.
Route GNDA separately from GNDD to a single star ground under the package. The analog VMON inputs are sensitive to digital return-current transients; mixing grounds can shift programmed thresholds by tens of millivolts. The 14 VMON traces should be kept short and guarded from switching signals. Place the JTAG connector within 50 mm of the TDI/TDO/TMS/TCK pins to avoid signal integrity issues during board test.
On the non-/A ISPPAC-POWR1014-01TN48I variant, SCL and SDA are not bonded for I2C use - do not attempt to access registers via I2C on this part; use JTAG exclusively. The RESETb pin should only be used to cascade two devices; tying it low in single-device use prevents proper reset behavior. The OPEN-DRAIN outputs require external pull-up resistors (typically 10 kohm to the rail being switched) - omitting them causes undefined output levels.
合规信息
RoHS compliant per Lattice product page. Industrial temperature grade -40C to +85C. Not AEC-Q100 qualified (not an automotive part). Lead-free TQFP package per Lattice product description.
