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Bosch Semiconductors

CY146

General purpose driver for six Power MOSFET

Application & Technical Summary

CY146

CY146 is a pre-driver for an external H-bridge or three external half bridges for 3-phase brushless DC motors.

Product benefits

  • Control of external n-channel power MOSFETs in various HS/LS combinations, configurable via SPI
  • Low-side stage with load current sensing functionality
  • Suitable as electronic main relay control
  • Independent PWM frequency generation and duty cycle configuration for all six drivers
  • Suitable for 14V or 28V systems

Extensive diagnostic features

for the connected FET power stages

Technical Features

Type
Pre-driver for PowerMOS B6- or H-bridges with integrated PWM generator
Package
LQFP44
Features

  • VBATmax: 60V
  • VGmax: 10V, IGmax: 500mA
  • CGmax: 10nF
  • fPWM_Out :250 / 125 / 63 / 31 kHz
  • Low-Side / High-Side switch
  • configurations with or without PWM control
  • Monitoring for short-circuit, open load or overtemperature, charge pump voltage

Outputs
6 x HS-/LS-switch
Control Interface
SPI, 16-bit (3.3 or 5 V)
Vbat typ [V]
5
Tj min [°C]
-40°C
Tj max [°C]
150°C

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