TCA965B - Window Comparator, 4.5-30 V, 14-DIP | Infineon
부품 번호: TCA965B ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TCA965B 개요
A window comparator is a specialized comparator integrated within the broader voltage-comparator and analog-interface hierarchy. Instead of providing only one switching threshold, it evaluates an input against two limits and reports when that input lies outside the acceptable band. This makes the TCA965B useful for voltage supervision, tracking control, dead-band control, and DC-voltage selection tasks identified in the manufacturer documentation.
The window edges can be configured directly, or the window can be established indirectly from its center voltage and half-width. Adjustable hysteresis reduces output chatter when the monitored voltage changes near an edge, while an adjustable reference supports threshold calibration. The open-collector outputs permit wired logic, relay interfaces, and pulled-up buses, but external pull-up resistors and suitable sink-current limits are required.
The bipolar implementation supports operation from 4.5 V through 30 V, making the TCA965B appropriate for industrial control systems operating above conventional low-voltage logic rails. Because its outputs are open collector, the device can interface with systems whose logic supply differs from the comparator supply. Designers must account for output rise time, pull-up resistance, load capacitance, and the common-emitter arrangement when wiring the outputs.
Typical uses include power-supply sequencing, battery-voltage qualification, tracking power controllers, process-control dead-band monitors, and DC-voltage selection within an allowed tolerance. In each circuit, the two window references determine acceptance limits while the digital outputs report undervoltage, in-window, and overvoltage conditions. The principal tradeoff is that the legacy 14-DIP package is larger than modern surface-mount alternatives, but it supports straightforward prototyping and through-hole assembly.
When designing around the TCA965B, begin with the verified supply requirement, configure the reference and window network using the manufacturer guidance, and confirm every output pull-up voltage. Do not assume logic-level compatibility from the 30 V supply capability because the open-collector pins do not actively drive a high output. Check hysteresis against noise and load-transient requirements, then validate the complete threshold system across temperature and supply variation.
This page combines the verified manufacturer and distributor records with package, application, comparison, and design guidance. It also distinguishes verified facts from unavailable electrical details rather than estimating unstated thresholds, propagation delays, package dimensions, or prices.
드롭인 대체품: TCA965B — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
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이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청TCA965B 최대 정격 & 전기적 특성
| Product Type | Window discriminator (bipolar IC) |
| Comparator Function | Below, within, or above a defined voltage window |
| Supply Voltage Range | 4.5 V to 30 V |
| 출력 유형 | Open collector |
| Maximum Output Sink Current | 50 mA |
| Window Configuration | Two adjustable window settings |
| Window Setting Method | Direct lower and upper edges or indirect center voltage and half-width |
| Hysteresis | Adjustable |
| Reference | Adjustable reference |
| 패키지 | PG-DIP-14-1, 14-pin through-hole |
| 핀 수 | 14 pins |
TCA965B pg-dip-14-1, 14-pin through-hole 핀 구성 가이드
TCA965B(pg-dip-14-1, 14-pin through-hole 패키지)의 핀 구성입니다. 이 아날로그 부품에는 입력, 출력, 전원 공급 핀이 있습니다. 오프셋 널, 보상, 인에이블 핀 구성은 제조사 데이터시트를 참조하십시오. 신호 컨디셔닝 및 증폭기 회로에 이상적입니다.
다음에 대한 상세 핀아웃 데이터 없음: TCA965B.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
TCA965B 적합 용도: 6 애플리케이션s: Power-Supply Window Supervisor, Battery Voltage Qualification, Tracking Power Controller, DC Voltage Selector, Process-Control Dead-Band Monitor, Voltage-Presence Interlock.
Power-Supply Window Supervisor
The TCA965B fits power-supply supervision because its verified 4.5-30 V operating range supports higher-voltage industrial rails and its two adjustable window edges define an allowed voltage band. Connect the monitored DC voltage to the comparator input, configure the lower and upper limits, and use pull-ups on the two open-collector outputs for logic-compatible status. The 50 mA stated output-current capability is relevant when driving compatible loads, but actual sink current must remain within the complete datasheet limits. This approach identifies below-window, in-window, and above-window conditions without implementing two unrelated threshold comparators.
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Battery Voltage Qualification
The TCA965B can supervise a battery-derived voltage against configurable lower and upper boundaries, useful when a load should operate only while the source remains inside a permitted energy range. Its adjustable reference, direct edge settings, and adjustable hysteresis provide the controls needed to establish the acceptance window. Hysteresis should be selected larger than expected sensing noise so the open-collector outputs do not chatter near an edge. The verified supply range applies to the device itself, while the monitored input limits and battery chemistry requirements must be checked in the full manufacturer data before implementation.
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Tracking Power Controller
TCA965B is specifically identified in the manufacturer documentation as suitable for tracking or compensating controllers with a dead band. The two window edges can represent the allowed error around a controlled voltage, while adjustable hysteresis limits repeated switching near each boundary. The open-collector outputs can be pulled up and connected to control logic or suitable driver circuitry. Designers should calculate edge voltages using the verified reference configuration from the complete datasheet and validate behavior against load transients; no threshold equation or propagation delay has been invented from the available snippets.
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DC Voltage Selector
The TCA965B supports selection of DC voltages within a specified tolerance because its window-discriminator function evaluates an input against lower and upper limits. This can identify which of several sources or operating conditions falls within an accepted voltage range. The verified open-collector outputs provide flexible status signaling, but pull-ups must match the controlling logic voltage. Because no verified switching-time values were supplied, applications requiring millisecond-scale decisions should not assume response speed; the complete Infineon datasheet must be reviewed for propagation timing and output-rise behavior.
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Process-Control Dead-Band Monitor
The adjustable dead-band capability makes TCA965B applicable to process-control systems that should remain inactive while a measured value lies within a specified band. Its two digital outputs can indicate when the input leaves the accepted region, and the adjustable hysteresis helps define a stable transition zone. The manufacturer explicitly lists tracking and compensating controllers with a dead band as suitable applications. Use open-collector pull-ups appropriate to the controller input, and validate noise immunity, sensor error, threshold accuracy, and temperature drift against the complete electrical specification before commissioning.
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Voltage-Presence Interlock
TCA965B can participate in a voltage-presence interlock by defining the acceptable range of a monitored rail and exposing separate open-collector status outputs to control logic. The verified 4.5-30 V device supply range is useful in industrial systems, while external pull-ups allow the logic-high level to suit a lower-voltage controller. This is a monitoring function rather than a safety-rated protector; an independent disconnect or protective device may still be required. Verify input limits, fault behavior, pull-up current, and temperature performance in the complete datasheet before using it as part of a safety control chain.
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추천 제품 요약
엔지니어링 참조 데이터: TCA965B — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| Package | PG-DIP-14-1, 14-pin through-hole |
| Brand | Infineon Technologies |
| Function | Bipolar window discriminator |
| Supply Voltage Range | 4.5 V to 30 V |
| Output Type | Open collector |
| Output Current | 50 mA |
| Window Settings | Two adjustable settings |
| Hysteresis | Adjustable |
| Reference | Adjustable |
설계 노트
Do not treat the TCA965B's 30 V supply capability as permission to apply 30 V directly to the open-collector outputs. Each output requires an external pull-up to the voltage expected by the receiving logic. Verify pull-up current at every output state and keep each sink current within the documented 50 mA capability.
Determine the pull-up network before laying out the board. A smaller pull-up gives faster rising edges and more noise margin but increases low-state current; a larger pull-up reduces loading but can slow the output. Use the complete Infineon electrical data to check output capacitance, rise time, sink current, and the resulting RC time constant.
Place the device socket or plated-through-hole footprint according to the verified PG-DIP-14-1 drawing, checking pin-1 orientation and row spacing against the actual mechanical drawing. Route threshold-setting and reference networks away from high-current switching paths. Keep open-collector traces short where possible to reduce capacitive coupling and ringing.
Window comparators can respond repeatedly when the monitored voltage, reference, or supply crosses a boundary with noise. Configure adjustable hysteresis above the measured uncertainty, but keep it below the minimum acceptable operating or safety band. Prototype with the intended source impedance and sensor wiring because long analog routes can add interference not represented by the basic circuit.
규정 준수 정보
The retrieved manufacturer and distributor records do not explicitly provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for TCA965B.
