PIN CONNECTIONS
Table 1. 34920 Pin Definitions (continued)
Pin Number
21
22
24
25
26
27
32
33
34
36
37
38
41
42
43
44
Pin Name
DR1B1
DR1PWM
DR2PWM
DR1B2
DR1SENSE2
DR1A2
DR2B2
DR2SENSE2
DR2A2
Formal Name
Driver 1, Bridge 1, Output B
Driver 1 PWM Input
Driver 2 PWM Input
Driver 1, Bridge 2, Output B
Driver 1, Bridge 2, I Sense
Driver 1, Bridge 2, Output A
Driver 2, Bridge 2, Output B
Driver 2, Bridge 2, I Sense
Driver 2, Bridge 2, Output A
Motor driver output.
Definition
PWM input for Driver 1. Used only when DR1_MODE pin = 0.
PWM input for Driver 2. Used only when DR2_MODE pin = 0.
Motor driver output.
Current sense for current mode.
Motor driver output.
Motor driver output.
Current sense for current mode.
Motor driver output.
Switching output for V2 regulator.
Selects operational mode of Driver 2. Step = 1 / DC = 0.
Switch output for V2 regulator.
Serial input register serial data input.
Serial input register clock.
Serial input register chip select input. Active low.
Ground connection for analog circuitry.
V2_SWITCH Internal MOSFET Source for V2
Regulator
DR2_MODE
V2_FB
SDI
SCLK
CS
AGND
Mode Select for Driver 2
V2 Regulator Feedback Input
Serial Port Data Input
Serial Data Port Clock
Serial Data Port Chip Select
Analog Ground
34920
4
Analog Integrated Circuit Device Data
Freescale Semiconductor
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
