MIC5800YM - 50V 4-Bit Latched Driver SOIC-14 | Microchip
料号： MIC5800YM ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.62 | $26.20 |
| 100 | $2.27 | $227.00 |
| 500 | $1.96 | $980.00 |
| 1,000 | $1.72 | $1,720.00 |
MIC5800YM 概述
What is a latched driver? A latched driver is a power-management IC that holds the last-written logic state on its outputs until the host writes a new value, freeing the microcontroller from continuous PWM or GPIO refresh. Within the broader hierarchy, latched drivers fall under power management ICs (PMICs) and are commonly classified alongside power distribution switches and load drivers. The MIC5800 sits between the digital control domain (MCU) and the high-power load domain (relay coils, stepper windings, Nixie/LED arrays), providing level shifting, current amplification, and transient protection in a single device.
Key specifications include four parallel CMOS-compatible data inputs (D1–D4), common STROBE and CLEAR controls, an OUTPUT ENABLE pin, 50 V minimum output breakdown, and 500 mA continuous sink current per channel. The bipolar Darlington pairs achieve typical VCE(sat) around 1.0 V at low currents, with integral flyback clamping diodes for inductive loads. Each output can be paralleled to increase current capability, and the device operates from a single 5 V logic supply.
Architecturally, the MIC5800YM combines CMOS latches with bipolar Darlingtons in a mixed-process BiCMOS design, ensuring low quiescent current on the logic side while the output transistors handle the high-voltage and high-current loads. The latches are edge-triggered by STROBE and asynchronously cleared by CLEAR, allowing deterministic update of all four channels simultaneously with predictable timing.
Typical applications include relay and solenoid drivers, stepper motor phase drivers, LED or lamp multiplex displays, print-head driver arrays, and high-side or low-side switching of 12–48 V industrial loads. The MIC5800YM is also widely used in legacy test equipment and telecom line-interface boards where bipolar drive strength is preferred over MOSFET-only switches.
When designing with the MIC5800YM, place a 0.1 µF decoupling capacitor close to VDD and respect the 50 V absolute-maximum output rating. The Darlington outputs have a saturation voltage that must be budgeted against load supply headroom, especially when driving low-voltage relays from a 5 V rail.
This page synthesizes verified distributor pricing, drop-in alternatives from the same MIC58xx family and competing bipolar latched drivers, and practical design notes that complement the Microchip datasheet.
直接替换替代料： MIC5800YM ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MIC5800YM （相同外形与封装尺寸） ——差异在于 Package, Product Type.
快速对比工具——选择替代料号进行并排对比：
MIC5800YM-TR
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →MIC5841YWM
✅ 直接替换📋 参考替代料（不在目录中）
MIC5821YM
✅ 直接替换📋 参考替代料（不在目录中）
MIC5891YWM
✅ 直接替换📋 参考替代料（不在目录中）
MIC5800YM 最大额定值与电气特性
| Product Type | 4-Bit Parallel-Input Latched Driver |
| Number of Drivers / Bits | 4 |
| 输出配置 | Low-side (open-collector / open-emitter Darlington) |
| Maximum Output Voltage | 50 V |
| Continuous Output Current per Channel | 500 mA |
| Input Compatibility | CMOS / TTL logic-level, 5 V |
| Logic Supply Voltage (VDD) | 5 V (typical) |
| Control Inputs | STROBE, CLEAR, OUTPUT ENABLE |
| Output Structure | Bipolar NPN Darlington with integral clamp diodes |
| Data Latch Type | CMOS D-type, edge-triggered by STROBE |
| 工作温度范围 | -40 °C to +85 °C |
| 封装 | 14-SOIC (0.154", 3.90 mm width) |
| 安装类型 | Surface Mount |
| MSL 等级 | 1 (unlimited) |
| RoHS 状态 | Compliant |
| Lead-Free | Yes |
MIC5800YM 引脚配置
| 引脚 1 | D1 — Data input bit 1 (CMOS/TTL) |
| 引脚 2 | D2 — Data input bit 2 (CMOS/TTL) |
| 引脚 3 | D3 — Data input bit 3 (CMOS/TTL) |
| 引脚 4 | D4 — Data input bit 4 (CMOS/TTL) |
| 引脚 5 | STROBE — Latch enable — rising edge transfers D1–D4 to outputs |
| 引脚 6 | CLEAR — Asynchronous clear — forces all outputs off (active high) |
| 引脚 7 | OUTPUT ENABLE — Output enable — enables all four Darlington drivers |
| 引脚 8 | GND — Logic and driver ground |
| 引脚 9 | NC — Not connected (per datasheet) |
| 引脚 10 | OUT1 — Open-collector Darlington output 1 |
| 引脚 11 | OUT2 — Open-collector Darlington output 2 |
| 引脚 12 | OUT3 — Open-collector Darlington output 3 |
| 引脚 13 | OUT4 — Open-collector Darlington output 4 |
| 引脚 14 | VDD — 5 V logic supply |
典型应用
MIC5800YM 适用于 6 应用s: Relay and Solenoid Driver Bank, Unipolar Stepper Motor Phase Driver, LED and 7-Segment Multiplex Display, Industrial 24 V Load Switching, Print Head and Thermal Printer Driver, Telecom and Test Equipment Line Interface.
Relay and Solenoid Driver Bank
The MIC5800YM is well suited as a 4-channel relay and solenoid driver because each Darlington output sinks 500 mA continuously at up to 50 V, and integral clamp diodes absorb inductive kickback when coils de-energize. Place the MIC5800YM between a 5 V MCU and a bank of 12 V or 24 V relays; each output drives one coil low-side, with the load supply isolated from the 5 V logic rail. Using STROBE to latch new states frees the MCU from continuous GPIO refresh, simplifying firmware and reducing interrupt load.
推荐
Unipolar Stepper Motor Phase Driver
For driving one unipolar stepper with two phases (or a single half-stepper axis), the MIC5800YM provides four parallel-controlled Darlington outputs at 500 mA / 50 V that can commutate the four stator windings of a 5-wire or 6-wire stepper. The CMOS latches let the MCU write all four phase bits in a single STROBE pulse, ensuring deterministic commutation timing without software busy-waits. Pair the MIC5800YM with a 12 V or 24 V motor supply; the integral flyback diodes handle the inductive ringing at every phase transition.
推荐
LED and 7-Segment Multiplex Display
The MIC5800YM can directly sink the common-cathode segments of four 7-segment displays or a 4×7 LED matrix, leveraging its 500 mA per-channel rating and 50 V output tolerance. By multiplexing rows through the four Darlington outputs while column data comes from a separate logic driver, the MIC5800YM reduces MCU pin count from 28 to 8 (four data + four control). The CMOS latches hold the displayed pattern without MCU refresh, freeing CPU cycles for other tasks.
推荐
Industrial 24 V Load Switching
In industrial automation and process-control boards, the MIC5800YM switches 24 V solenoids, valves, indicator lamps, and small DC loads directly from a 5 V CMOS controller. The 50 V breakdown headroom tolerates inductive transients and 24 V bus spikes without external TVS protection in most cases. Each output handles 500 mA continuously, and paralleling two channels doubles current capacity for heavier loads while preserving the CMOS interface simplicity.
推荐
Print Head and Thermal Printer Driver
The MIC5800YM is used in legacy thermal print-head and dot-matrix print-head designs where its 4-bit parallel latched interface and 500 mA per-channel drive directly fire heater resistors or solenoid actuators. STROBE-based latching synchronizes the print line update across all channels, eliminating MCU timing jitter. The 50 V rating covers most 24 V print-head bus designs, and the SOIC-14 footprint suits compact platen-side PCBs.
推荐
Telecom and Test Equipment Line Interface
Legacy telecom line cards, ATE (automatic test equipment) fixture pin drivers, and bench-instrument relay-multiplexer boards use the MIC5800YM as a low-side driver for 48 V line-interface relays and reed switches. The bipolar Darlington output delivers the high inrush current typical of telecom relays, while the CMOS latch holds the selected channel without CPU intervention. The 14-SOIC footprint allows dense multiplexing matrices on the interface PCB.
推荐
推荐产品汇总
工程参考数据： MIC5800YM ——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 | MIC5800YM-TR | MIC5841YWM | MIC5821YM | MIC5891YWM | TPIC6B273DW |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Texas Instruments |
| Package | 14-SOIC | 14-SOIC (same) | 14-SOIC (same) | 14-SOIC (same) | 14-SOIC (same) | 20-SOIC (different) |
| Number of Channels | 4 | 4 | 8 | 8 | 8 | 8 |
| Output Current per Channel | 500 mA | 500 mA | 500 mA | 500 mA | 500 mA | 150 mA |
| Maximum Output Voltage | 50 V | 50 V | 50 V | 50 V | 50 V | 50 V |
| Input Interface | 4-bit parallel | 4-bit parallel | 8-bit parallel | 8-bit serial | 8-bit serial | 8-bit parallel |
| Integral Clamp Diodes | Yes | Yes | Yes | Yes | Yes | Yes |
| Approximate Unit Price (qty 1) | $2.95 | $2.95 (same silicon) | $3.50 (approx) | $3.20 (approx) | $3.40 (approx) | $2.10 (approx) |
关键差异点
- 4-bit parallel interface with STROBE/CLEAR/OUTPUT ENABLE control （对比 MIC5821YM)
- True 4-channel 14-SOIC footprint for compact designs （对比 MIC5841YWM)
- Higher per-channel current than TPIC6B273DW （对比 TPIC6B273DW)
设计说明
The MIC5800YM requires a 5 V VDD supply for the CMOS latch and control logic, and the load supply on the Darlington emitters can be any voltage from 0 V to 50 V. Decouple VDD with a 0.1 µF ceramic capacitor placed within 5 mm of the VDD pin (pin 14) and a 1 µF bulk capacitor on the same rail. The Darlington outputs have a typical VCE(sat) of 1.0 V at low currents that rises to ~1.5 V at 500 mA, so budget this drop against your load supply headroom.
Estimated: at 500 mA per channel and a 1.5 V VCE(sat), each output dissipates 750 mW. The 14-SOIC package has a theta_JA of approximately 100 °C/W, so driving four channels simultaneously at full load dissipates 3 W and would raise junction temperature ~100 °C above ambient. For continuous full-load operation on all four channels, ensure adequate PCB copper pour or reduce per-channel current to keep Tj below 125 °C.
Route the 5 V logic traces and the high-current load traces on opposite sides of the PCB or separated by a ground plane to minimize coupling. Keep STROBE and CLEAR traces short and away from the Darlington outputs to avoid false triggering from dV/dt on the load rails. Place the VDD decoupling capacitor as close as possible to pin 14 with a wide ground return.
Do not exceed the 50 V absolute maximum on the output transistors — even brief transients above this rating can cause secondary breakdown of the Darlington pair. Do not leave STROBE floating; tie it to VDD through a pull-up if not driven, otherwise the latches will not update. The CLEAR pin is active-high and forces all outputs off; tie it to GND through a pull-down if the clear function is not used.
合规信息
RoHS and lead-free status per Microchip product page. Not AEC-Q100 qualified — for automotive applications select AEC-Q100-qualified load drivers. Halogen-free status not explicitly stated in verified data; marked as unknown.
