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Bosch Semiconductors

CY335

6-channel injector driver for direct injection engines

Application & Technical Summary

CY335

CY335 controls up to six injectors. The two-bank concept permits two independent injections at a time. High flexibility is guaranteed due to multiple configuration and programming options.

The use of external power components (switches and shunts) provides a high degree of freedom to the control unit designer. A CY335-based system can be adapted to any direct injection valve in the market.

Product benefits

  • Injection driver for up to six solenoid DI valves
  • 2 independent injection valve banks (2 x 3 channels)
  • Support of overlapping fuel injections
  • Several successive fuel injections without recharge cycle
  • Flexible configuration

Programmable control parameters

Current levels and boost voltage can be configured via SPI

Technical Features

Type
6-fold GDI injector pre-driver for use with external power stages
Package
TQFP64
Features

  • 1- or 2-bank operation, parallel and/or double injection mode
  • DC/DC boost converter
  • Diagnosis via SPI
  • Current levels and boost voltage adjustable via SPI
  • External powerstages and shunts for maximum flexibility

Outputs

  • 2 x HSPS (battery)
  • 2 x HSPS (booster)
  • 6 x driver for external power stages

Control inputs
TTL/CMOS logic
Vbat typ [V]
14
VDD typ. [V]
5
Tj min [°C]
-40°C
Tj max [°C]
150°C

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