34920(2004) データシートの表示（PDF） - Freescale Semiconductor
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34920 Datasheet PDF : 28 Pages
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Freescale Semiconductor, Inc.
GND 29
VB+ 30
VB+ 31
DR2B2 32
DR2SENSE2 33
DR2A2 34
VB+ 35
V2_SWITCH 36
DR2_MODE 37
V2_FB 38
GND 39
17 GND
16 VB+
15 VB+
14 DR2B1
13 DR2SENSE1
12 DR2A1
11 VB+
10 V1_SWITCH
9 DR1_MODE
8 V1_FB
7 GND
TERMINAL FUNCTION DESCRIPTION
Terminal
Terminal Name
1
Vb
2
CP2
3
CP1
4
RESET
5
VCC
Formal Name
Output terminal to VVb
Capacitor to CP1
Capacitor to CP2
Reset Output
VCC Supply Voltage
6, 7, 17, 18, 28,
29, 39, 40
8
9
10
11, 15, 16, 23,
30, 31, 35
12
13
14
19
20
21
22
GND
V1_FB
DR1_MODE
V1_SWITCH
VB+
DR2A1
DR2SENSE1
DR2B1
DR1A1
DR1SENSE1
DR1B1
DR1PWM
Substrate Ground
V1 Regulator Feedback Input
Mode Select for Driver 1
Internal MOSFET Source for V1 Regulator
VB+ (Bulk) Supply Voltage
Driver 2, Bridge 1, Output A
Driver 2, Bridge 1, I Sense
Driver 2, Bridge 1, Output B
Driver 1, Bridge 1, Output A
Driver 1, Bridge 1, I Sense
Driver 1, Bridge 1, Output B
Driver 1 PWM Input
24
DR2PWM
Driver 2 PWM Input
25
DR1B2
Driver 1, Bridge 2, Output B
Definition
Terminal to connect to VVb capacitor.
Terminal for boost generator switch capacitor.
Terminal for boost generator switch capacitor.
Active low Reset output.
VCC power input for internal use. The 34920 accepts
either 3.3 V ±10% or 5.0 V ±5% for its logic voltage.
Ground connections for digital IC circuitry.
Voltage feedback for the V1 regulator.
Selects operational mode of Driver 1; Step = 1/DC = 0.
Switching output for V1 regulator.
High-voltage supply for motors and regulators.
Motor driver output.
Current sense for current mode.
Motor driver output.
Motor driver output.
Current sense for current mode.
Motor driver output.
PWM input for Driver 1. Used only when DR1_MODE
terminal = 0.
PWM input for Driver 2. Used only when DR2_MODE
terminal = 0.
Motor driver output.
MOTOROLA ANALOG INTEGRATED CIRFCoUrITMDEoVrIeCEIDnAfoTArmation On This Product,
Go to: www.freescale.com
34920
3
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