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The L293B and L293E are quad push-pull drivers capable of delivering output currents to 1A per channel. Each channel is controlled by a TTL-compatible logic input and each pair of drivers (a full bridge) is equipped with an inhibit input which turns off all four transistors. A separate supply input is provided for the logic so that it may be run off a lower voltage to reduce dissipation.
Additionally, the L293E has external connection of sensing resistors, for switchmode control.
The L293B and L293E are package in 16 and 20-pin plastic DIPs respectively ; both use the four center pins to conduct heat to the printed circuit board.主要特性
- OVERTEMPERATURE PROTECTION
- OUTPUT CURRENT 1A PER CHANNEL
- INHIBIT FACILITY
- PEAK OUTPUT CURRENT 2A PER CHANNEL (non repetitive)
- SEPARATE LOGIC SUPPLY
- HIGH NOISE IMMUNITY
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样片和购买
| 产品型号 | 从分销商订购 | 从ST订购 | 供货状态 | 封装 | 包装类型 | 温度（ºC） | ECCN (US) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | ||||||||||
| L293B | 6 distributors | 获取样片 | 批量生产 | PDIP 16 | Tube | -40 | 150 | EAR99 | MALAYSIA | 1.407 / 1k | |
