MIC5800BN - 4-Bit Latched Driver 500mA 14-DIP | Microchip
부품 번호: MIC5800BN ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.35 | $2.35 |
| 10 | $2.11 | $21.10 |
| 100 | $1.82 | $182.00 |
| 500 | $1.58 | $790.00 |
| 1,000 | $1.42 | $1,420.00 |
MIC5800BN 개요
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.
드롭인 대체품: MIC5800BN — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
MIC5800YN
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
MIC5800BN 최대 정격 & 전기적 특성
| 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 |
| 출력 유형 | Bipolar Darlington |
| On-State Resistance | 200 kOhm |
| Logic | CMOS data latches with CLEAR, STROBE, OUTPUT ENABLE |
| 패키지 / 케이스 | 14-DIP (0.300 in, 7.62 mm) |
| 실장 유형 | 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 |
MIC5800BN 14-dip (0.300 in, 7.62 mm) 핀 구성 가이드
MIC5800BN(14-dip (0.300 in, 7.62 mm) 패키지)의 핀 구성입니다. 이 전력 소자는 게이트, 드레인, 소스 단자를 갖추고 있습니다. 비편향 패키지의 경우 정확한 핀 1 방향과 풋프린트 세부 정보는 제조사 데이터시트를 참조하십시오. 일반적인 응용 분야로는 전원 공급 장치 설계, 모터 구동, 부하 스위칭이 있습니다.
다음에 대한 상세 핀아웃 데이터 없음: MIC5800BN.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
MIC5800BN 적합 용도: 6 애플리케이션s: 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.
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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.
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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.
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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.
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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.
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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.
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추천 제품 요약
엔지니어링 참조 데이터: MIC5800BN — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 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 |
주요 차별점
- Hardware latching frees the controller (vs ULN2003A)
- Global CLEAR and OUTPUT ENABLE control (vs MIC5801BN)
- Trade-off: Darlington saturation voltage (vs MIC5800YN)
설계 노트
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.
규정 준수 정보
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.
