Features: •Low Total RDS(ON) 0.7 (Typ), 1.2 (Max) @ 25•Output Current 700 mA (Continuous per Output)•Shoot-Through Current Protection Circuit•PWM Control Input Frequency up to 200 kHz•Built-In DC/DC Boost Converter•Low Power Consumption Standby Mode•Unde...
17550: Features: •Low Total RDS(ON) 0.7 (Typ), 1.2 (Max) @ 25•Output Current 700 mA (Continuous per Output)•Shoot-Through Current Protection Circuit•PWM Control Input Frequency up...
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Rating | Symbol | Value | Unit |
Motor Supply Voltage | VM | -0.5 to 9.0 | V |
Gate-Driver Circuit Power Supply Voltage | VG | VDD-0.5 to 14 | V |
Logic Supply Voltage | VDD | -0.5 to 6.0 | V |
Signal Input Voltage (1) | VIN | -0.5 to VDD+0.5 | V |
Driver Output Current Continuous (2) Peak (3) |
IO IOPK |
0.7 2.0 |
A |
ESD Voltage (4) Human Body Model Machine Model |
VESD1 VESD2 |
±2000 ±100 |
V |
Storage Temperature Range | TSTG | -65 to 150 | |
Operating Ambient Temperature | TA | -10 to 60 | |
Operating Junction Temperature | TJ | -10 to 150 | |
Thermal Resistance (5) | RJA | TBD | |
Power Dissipation (6) | PD | 1500 | mW |
Soldering Temperature (7) | TSOLDER | 260 |
The 17550 is a monolithic quad H-Bridge power IC ideal for portable electronic applications containing tiny bipolar stepper motors and/or brush DC-motors powered by two-to-four cell NiCd/NiMH batteries.
The 17550 operates from 2.5 V to 5.5 V, with independent control of each H-Bridge via parallel 3.0 V or 5.0 V logic-compatible I/O. The 17550 features an on-board DC/DC boost converter that allows motor operation all the way down to 1.6 V (the boost converter supplies the gate-drive voltage for each of the four independent H-bridge output stages). Each output bridge of the 17550 has its own gate-drive and logic circuitry with built-in shoot-through current protection.
The 17550 has four operating modes: Forward, Reverse, Brake, and Tri-Stated (High Impedance). The 17550 has a low total RDS(ON) of 1.2 max @ 25 In addition, it can be set into a very low current-drain standby mode.
The H-Bridge outputs of the 17550 can be independently PWM'ed at up to 200 kHz for speed/torque and current control. The 17550 can efficiently drive many types of micromotors owing to its low output resistance and high output slew rates.