Skip to main content
Bosch semiconductors for Automotive


Multi-channel power switch

Application & Technical Summary


The CJ970 is a multi-channel power switch IC, developed to meet the needs of electronic powertrain control units, with focus on combustion engine and fuel cell applications. Besides the flexible possibility to combine the power stages to form a half-bridge, a H-bridge (“push-pull”) or a B6 bridge to drive a brush-less DC motor.

Product benefits

  • Extensive diagnostic functions for each output channel
  • Developed according to ISO26262
  • The CJ970 can be optimally used in combination with the system basis chip CY329

Protected output stages

Clamping voltage of 55V (typ.) on all outputs

Technical Features

Multi-channel power switch
10 n-MOSFET driver stages
  • 6 LS driver
  • 4 configurable HS/LS driver
  • Combinable to form Half bridges, two H bridges or a B6 bridge for motor control
14 integrated Low Side switches with 55V clamping
  • 6 x 3.6A / 350 mΩ
  • 2 x 2.2 A / 730 mΩ
  • 6 x 0.6 A
Control inputs
4 to 8 direct control inputs
MSC bus (micosecond channel bus)
Vbat typ [V]
Tj min [°C]
Tj max [°C]
  • TQFP100 _ePad (14 × 14 mm)
    TQFP100 _ePad (14 × 14 mm)


Product information

Share this on:

Get in touch with us