Click here to ask about the production status of specific part numbers. MAX22200 36V, 1A Octal Integrated Serial-Controlled Solenoid and Motor Driver General Description Benefits and Features The MAX22200 is an octal 36V serial-controlled solenoid Eight Half-Bridges Up To +36V driver. Each channel features a low impedance (200m High Performances: typ) push-pull output stage with sink-and-source driving Low On-Resistance: R : 200 m typical (T = DS(on) A capability and up to 1A driving current. A serial inter- +25C) RMS face (SPI) that also supports daisy-chain configurations is Continuous Output Current Up To 1A per Half- RMS provided to individually control each channel. Bridge (T = +25C) A Current-Drive Regulation (CDR) The device half-bridges can be configured as low-side Voltage-Drive Regulation (VDR) drivers or as high-side drivers. Moreover, pairs of half- Integrated Lossless Current Sensing (ICS) bridges can be paralleled to double the driving current or can be configured as full-bridges to drive up to four latched High Flexibility: valves (bi-stable valves) or four brushed DC motors. Independent Programmable HIT and HOLD Currents for Each Channel (I , I ) HIT HOLD Two control methods are supported: voltage drive regu- Independent Programmable HIT Current Timing for lation (VDR) and current drive regulation (CDR). In VDR, Each Channel (t ) HIT the device outputs a PWM voltage in which the duty cycle Full-Bridge Configuration Supported is programmed using SPI. For a given supply voltage and Parallel Mode Supported solenoid resistor, the output current is proportional to the programmed duty cycle. In CDR, an internal integrated High Speed Serial Interface (SPI) lossless current sensing (ICS) circuit senses the output 5MHz Daisy-Chain Configuration current and compares it with an internal programmable 10MHz without Daisy Chain reference current. Protections and Diagnostic For optimal power management in solenoid drive applica- Overcurrent Protection (OCP) tions, the excitation drive level (I ), the hold drive level Open-Load Detection (OL) HIT (I ), and the excitation drive time (t ) can be individ- Detection of Plunger Movement (DPM) HOLD HIT ually configured for each channel. Undervoltage Lockout (UVLO) HIT Current Not Reached (HHF) The MAX22200 features a full set of protections and di- Thermal Shutdown T = +145C (TSD) agnostic functions. This includes overcurrent protection Fault Registers for Diagnostic purposes (OCP), thermal shutdown (TSD), undervoltage Lockout (UVLO), open-load detection (OL), and detection of Integration: plunger movement (DPM). A fault indication pin (FAULT) 32 TQFN 5mm x 5mm Package signals fault events and diagnostic information is stored in the FAULT register. Ordering Information appears at end of datasheet. Due to the flexibility of use, the serial interface control, the high efficiency, and the small package, the MAX22200 is particularly well-suited for solenoid driver applications (valve control, relays control etc.) in which low power con- sumption and high level of integration are required. The MAX22200 is available in a compact 5mm x 5mm, 32-pin TQFN package and operates over the temperature -40C to +85C range. Applications Relays Driver Solenoid, Valves, Electromagnetic Drivers Generic Low-Side and High-Side Switch Applications Latched (Bi-Stable) Solenoid Valve Drivers Brushed DC Motor Driver 19-100531 Rev 0 4/20MAX22200 36V, 1A Octal Integrated Serial-Controlled Solenoid and Motor Driver Simplified Block Diagram VM MAX22200 VM ENABLE LDO V18 GATE DRIVER OUT0 OCP CURRENT OUT1 VCP SENSE PGND C FP CHARGE PUMP OUT2 C FN OPEN- LOAD DAC DETECT OUT3 CSB SCK OUT4 SPI SDI INTERFACE SDO OUT5 VDR/CDR CMD CONTROL LOGIC FAULT MANAGEMENT V OUT6 M TRIGA TRIGB GATE DRIVER OUT7 OCP PROTECTION CURRENT FAULT UVLO SENSE OVT PGND OPEN- LOAD OSCILLATOR DAC DETECT CURRENT I REF REFERENCE GND EP/PGND www.maximintegrated.com Maxim Integrated 2