MIC5800BN - 4-Bit Latched Driver 500mA 14-DIP | Microchip
MPN: MIC5800BN ✓ Hoạt độngMIC5800BN Tóm tắt
A latched driver is a type of power driver IC that combines digital logic (data latches and control circuitry) with power output transistors on a single die. In the semiconductor hierarchy it sits between simple logic ICs and discrete power transistors: logic circuits set the desired output state, the latch holds that state on command, and the Darlington pair amplifies it to drive high-current loads such as relays, solenoids, lamps, and LED strings. This eliminates the need for discrete driver transistors and latch logic in mixed-signal control boards.
Key features of the MIC5800BN include four CMOS data latches with common CLEAR, STROBE, and OUTPUT ENABLE control lines, a bipolar Darlington output stage rated for high-voltage, high-current operation, and a classic through-hole 14-DIP footprint that simplifies prototyping, rework, and legacy board maintenance. The 200 kohm on-state output characteristic reflects the Darlington output structure, and the 500 mA per-channel rating allows direct drive of relays and printer-head solenoids.
Architecturally, each of the four channels consists of a CMOS latch feeding a Darlington transistor driver. Data on the parallel inputs is transferred to the latches on a STROBE edge; the OUTPUT ENABLE gate turns all outputs on or off simultaneously, and CLEAR resets all latches. CMOS control circuitry keeps input drive requirements low, allowing direct interface to 5 V logic families.
Typical applications include relay and solenoid driving in industrial control panels, hammer/solenoid drivers in impact printers, incandescent lamp and LED segment drivers, and general-purpose high-current peripheral interfacing in legacy equipment maintenance.
Design consideration: Darlington outputs saturate at roughly 1 V even at moderate currents, so plan load budgets and thermal margins accordingly, and use adequate base-referenced pulldowns on unused inputs.
This page synthesizes distributor pricing, verified specifications, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho MIC5800BN — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
MIC5800YN
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MIC5800BN Tỷ lệ tối đa & tính chất điện
| Product Type | 4-Bit Parallel-Input Latched Driver |
| Number of Channels | 4 |
| Output Current per Channel | 500 mA |
| Supply Voltage Range | 5 V to 12 V |
| Kiểu đầu ra | Bipolar Darlington |
| On-State Resistance | 200 kOhm |
| Logic | CMOS data latches with CLEAR, STROBE, OUTPUT ENABLE |
| Hộp / Vỏ | 14-DIP (0.300 in, 7.62 mm) |
| Kiểu lắp đặt | Through Hole |
| Configuration | Power Switch/Driver 1:1 |
| Latch Functions | Common CLEAR, STROBE, OUTPUT ENABLE |
| High-Voltage Capability | Yes (high-voltage, high-current driver) |
| Manufacturer | Microchip Technology (originally Micrel Semiconductor) |
| Applications | Relays, solenoids, lamps, printer drivers |
Hướng dẫn cấu hình chân MIC5800BN 14-dip (0.300 in, 7.62 mm)
Cấu hình chân cho MIC5800BN (14-dip (0.300 in, 7.62 mm) gói). Động cơ điện này có chân cổng, nguồn và đầu ra. Đối với các gói không phân極, tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết hướng dẫn chính xác của chân 1 và chi tiết về vân footprint. Các ứng dụng phổ biến bao gồm thiết kế nguồn cung cấp điện, điều khiển động cơ và chuyển đổi tải.
Không có dữ liệu chân cụ thể sẵn có cho MIC5800BN.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MIC5800BN phù hợp cho 6 Áp dụngs: Industrial Relay Driving, Printer Hammer and Solenoid Drivers, Lamp and LED String Drivers, Legacy Equipment Maintenance and Repair, Microcontroller Peripheral Interfacing, Automated Test Equipment Load Switching.
Industrial Relay Driving
The MIC5800BN's 500 mA per-channel Darlington outputs directly drive 5 V and 12 V signal relays without discrete driver transistors. According to the Microchip datasheet, each channel pairs a CMOS latch with a bipolar Darlington stage, so a microcontroller writes all four relay states on parallel inputs, clocks STROBE once, and the latches hold the states indefinitely - freeing GPIO for other tasks. The 5 V to 12 V supply range matches standard industrial control panel rails. Design consideration: the Darlington saturation voltage near 1 V reduces coil voltage margin, and flyback protection for inductive coils should be verified against the datasheet's absolute maximum ratings before production.
Được đề xuất
Printer Hammer and Solenoid Drivers
Impact printers historically used the MIC5800/5801 family to drive hammer solenoids and carriage solenoids. The part's high-voltage, high-current Darlington outputs handle repetitive 500 mA pulse loads, while the common CLEAR pin rapidly de-energizes all channels between print cycles and the OUTPUT ENABLE gates the entire bank during fault conditions. The parallel-input, strobed-latch architecture lets a printer controller update all four hammers in a single bus write cycle. Because solenoid drive is pulse-oriented, verify duty cycle and per-channel energy against the manufacturer datasheet thermal data; continuous operation at full 500 mA on multiple channels requires package dissipation review in the 14-DIP through-hole footprint.
Được đề xuất
Lamp and LED String Drivers
Incandescent indicator lamps and high-current LED strings draw far more current than logic outputs can source; the MIC5800BN bridges that gap with 500 mA Darlington channels controlled from 5 V CMOS logic. The latched outputs hold display states without continuous refreshing, which is valuable in status panels and annunciators where the controller may be busy. The OUTPUT ENABLE pin enables full-panel blanking for fault signaling or lamp test sequences. Note the roughly 1 V Darlington saturation drop when budgeting lamp voltage at 12 V rails, and calculate series resistance so channel current stays within the 500 mA per-channel rating specified in the Microchip datasheet.
Được đề xuất
Legacy Equipment Maintenance and Repair
The MIC5800BN's through-hole 14-DIP (7.62 mm) package makes it a natural service part for industrial controllers, test fixtures, and peripheral boards designed in the Micrel era. Through-hole construction allows socketed installation, so field technicians can replace a failed latched driver without hot-air rework equipment. The verified availability from DigiKey (ships today as of 2026-10-16) and 12 distributor channels on Octopart makes single-unit procurement straightforward. When the exact B temperature grade is out of stock, the same-footprint MIC5800YN is the first substitution candidate to evaluate, with temperature range confirmed against the manufacturer datasheet before fitting.
Được đề xuất
Microcontroller Peripheral Interfacing
The MIC5800BN's CMOS inputs interface directly with 5 V microcontroller ports: four data lines carry channel states, one GPIO generates STROBE, and optional CLEAR and OUTPUT ENABLE lines provide hardware reset and global gating. This occupies just six or seven MCU pins while delivering 2 A of aggregate drive capability (4 x 500 mA) - something no GPIO bank can achieve alone. The latch-and-hold behavior means the MCU can multiplex its data bus across other peripherals and only pulse STROBE when updates are needed. According to the datasheet, the common control lines (CLEAR, STROBE, OUTPUT ENABLE) are shared CMOS circuitry, keeping timing requirements simple for 8-bit MCU designs.
Được đề xuất
Automated Test Equipment Load Switching
Test fixtures frequently need to switch solenoids, indicator lamps, or relay matrices under computer control. The MIC5800BN's latched channels hold switch states between test steps, its CLEAR input provides a deterministic all-off state between DUT changeovers, and OUTPUT ENABLE acts as a hardware interlock that can gate all channels from a safety chain. The 5 V to 12 V supply range fits both logic-side and relay-side rails. Its 200 kohm on-state output characteristic and Darlington saturation should be included in fixture-level measurement error budgets, and channels should be derated per the datasheet if multiple 500 mA loads switch simultaneously in the 14-DIP package.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MIC5800BN — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MIC5800YN | MIC5801BN |
|---|---|---|---|
| Package | 14-DIP (0.300 in, 7.62 mm) | 14-DIP (0.300 in, 7.62 mm) - same | 22-PDIP (different footprint) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Channels / Bits | 4 | 4 | 8 |
| Output Current per Channel | 500 mA | 500 mA | 500 mA |
| Supply Voltage | 5 V to 12 V | 5 V to 12 V | 5 V to 12 V |
| Input Architecture | 4-bit parallel with latches | 4-bit parallel with latches | 8-bit parallel with latches |
| Control Functions | Common CLEAR, STROBE, OUTPUT ENABLE | Common CLEAR, STROBE, OUTPUT ENABLE | Common CLEAR, STROBE, OUTPUT ENABLE |
Bảo phân biệt quan trọng
- Hardware latching frees the controller (vsULN2003A)
- Global CLEAR and OUTPUT ENABLE control (vsMIC5801BN)
- Trade-off: Darlington saturation voltage (vsMIC5800YN)
Ghi chú thiết kế
Estimated: with a Darlington saturation voltage of roughly 1 V per the device class, each channel conducting 500 mA dissipates about 0.5 W. Driving all four channels simultaneously could approach 2 W of package dissipation in the 14-DIP through-hole package, so verify junction temperature against the datasheet thermal resistance and consider derating or airflow for continuous multi-channel loads. Budget the ~1 V output saturation into the load voltage: a 12 V relay coil sees only about 11 V when driven by this part.
The STROBE, CLEAR, and OUTPUT ENABLE pins are common CMOS control lines - do not leave them floating. Tie unused control lines to their inactive levels (per the datasheet logic tables) and tie unused data inputs to GND, otherwise CMOS latch inputs may float and cause spurious channel activation. Remember that outputs follow the latches only when OUTPUT ENABLE is active; a design that ignores OE at power-up may see all channels off until the pin is properly driven.
Place a 0.1 uF ceramic decoupling capacitor close to the VDD pin to absorb the current transients when multiple Darlington channels switch simultaneously. For inductive loads such as relays and solenoids, provide flyback protection (diodes to the supply rail or load-supply clamp, per the datasheet application guidance) since inductive kickback from a de-energizing coil can exceed output transistor ratings. Keep high-current output traces wide and return them to a separate power ground from the CMOS logic ground to prevent latch-up-inducing ground bounce.
Thông tin tuân thủ
Compliance status not stated in the verified web data retrieved 2026-10-16. As a legacy Micrel-origin through-hole part, verify the material declaration on the Microchip product page before use in RoHS-restricted new designs.
