HI-84216
Programmable over Serial Peripheral Interface (SPI). Accurate Load Current Sensing with built-in ADC.
16−Channel Low-side driver
The HI-84216 is a smart 16-channel low-side driver designed for high-reliability applications. The device uses a Serial Peripheral Interface (SPI) for intelligent switch control, monitoring and advanced diagnostics.
The HI-84216 is capable of sinking 250mA per channel with up to 4A total sink current for parallel channel operation. An 8-bit ADC provides accurate measurement of channel current and temperature while an internal PWM clock generator with 16-bit resolution provides application flexibility.
Key Features:
- Compact 16-channel low-side driver (6mm x 6mm)
- 250mA sink current per channel
- Sink up to 4A when all channels used in parallel
- Accurate current/temperature measurement
- Access diagnostics and program via 10 MHz SPI
- 0.5 Ω On-Resistance per channel
- < 1μA leakage current with low quiescent power
- Digital I/O powered with 1.8V to 5.0V
- Continuous Online Built-in Self-Test
- Host-controlled output enable pin
- Operating Temperature:
-40°C to +85°C or -55°C to +125°C - Over-current shutdown protection with programmable retries
- Thermal fail-safe
- Internal or external PWM option for soft-start or LED dimming
- Internal programmable PWM clock generator with 16-bit resolution on pulse width and period
- PWM configured on a per-channel basis over SPI
- PWM clock fault detection
- Optional programmable watchdog timer
- Programmable High/Low Current Thresholds
- Open/Short Load Detection
- Interrupt output pin set with enabled interrupts
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