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34920 Datasheet(PDF) 3 Page - Freescale Semiconductor, Inc

No. de pieza 34920
Descripción Electrónicos  2.8 ohm (Typ) Quad H-Bridge Motor Driver
PDF  29 Pages
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Fabricante Electrónico  FREESCALE [Freescale Semiconductor, Inc]
Página de inicio  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

34920 Datasheet(HTML) 3 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
3
34920
PIN CONNECTIONS
PIN CONNECTIONS
Figure 3. 34920 Pin Connections
Table 1. 34920 Pin Definitions
Pin Number
Pin Name
Formal Name
Definition
1
VB
Output pin to VVb
Pin to connect to VVb capacitor.
2
CP2
Capacitor to CP1
Pin for boost generator switch capacitor.
3
CP1
Capacitor to CP2
Pin for boost generator switch capacitor.
4
RESET
Reset Output
Active low Reset output.
5
VCC
VCC Supply Voltage
VCC power input for internal use. The 34920 accepts either 3.3 V ±10% or
5.0 V ±5% for its logic voltage.
6, 7, 17, 18,
28, 29, 39, 40
GND
Substrate Ground
Ground connections for digital IC circuitry.
8
V1_FB
V1 Regulator Feedback Input
Voltage feedback for the V1 regulator.
9
DR1_MODE
Mode Select for Driver 1
Selects operational mode of Driver 1; Step = 1/DC = 0.
10
V1_SWITCH
Internal MOSFET Source for V1
Regulator
Switching output for V1 regulator.
11, 15, 16,
23, 30, 31, 35
VB+
VB+ (Bulk) Supply Voltage
High-voltage supply for motors and regulators.
12
DR2A1
Driver 2, Bridge 1, Output A
Motor driver output.
13
DR2SENSE1
Driver 2, Bridge 1, I Sense
Current sense for current mode.
14
DR2B1
Driver 2, Bridge 1, Output B
Motor driver output.
19
DR1A1
Driver 1, Bridge 1, Output A
Motor driver output.
20
DR1SENSE1
Driver 1, Bridge 1, I Sense
Current sense for current mode.
DR2SENSE1
DR2A1
VB+
V1_SWITCH
DR1_MODE
V1_FB
GND
GND
30
31
32
33
34
35
36
29
DR2B1
VB+
VB+
DR2SENSE2
DR2A2
VB+
V2_SWITCH
DR2_MODE
V2_FB
GND
GND
DR2B2
VB+
VB+
37
38
39
16
15
14
13
12
11
10
17
9
8
7



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