ChongMing Group (HK) Int'l Co., Ltd
CHONGMING GROUP (HK) INT'L CO., LTD.
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L293B L293E
PUSH-PULL FOUR CHANNEL DRIVERS
■ OUTPUT CURRENT 1A PER CHANNEL
■ PEAK OUTPUT CURRENT 2A PER CHANNEL (non repetitive)
■ INHIBIT FACILITY
■ HIGH NOISE IMMUNITY
■ SEPARATE LOGIC SUPPLY
■ OVERTEMPERATURE PROTECTION
DESCRIPTION
The L293B and L293E are quad push-pull drivers capable of delivering output currents to 1A per channel. Each channel is controlled by a TTLcompatible 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.
ABSOLUTE MAXIMUM RATINGS
| Symbol | Parameter | Value | Unit |
|---|---|---|---|
| Vs | Supply Voltage | 36 | V |
| Vss | Logic Supply Voltage | 36 | V |
| Vi | Input Voltage | 7 | V |
| Vinh | Inhibit Voltage | 7 | V |
| Iout | Peak Output Current (non repetitive t = 5ms) | 2 | A |
| Ptot | Total Power Dissipation at Tground-pins = 80°C | 5 | W |
| Tstg, Tj | Storage and Junction Temperature | –40 to +150 | ℃ |
PIN CONNECTION (Top view)
Stock Offer (Hot Sell)
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