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Philips Semiconductors
Full bridge driver IC
Product speci?cation
UBA2032
Table 1
Logic table; note 1
DEVICE
INPUTS (2)
OUTPUTS (3)
STATUS
Start-up state
Oscillation state
BD
HIGH
LOW
HIGH
LOW
LOW
SU
X
X
X
LOW
HIGH
DD
X
X
X
X
HIGH
EXTDR
X
X
X
X
HIGH
GHL
LOW
LOW
LOW
LOW
LOW
GHR
LOW
LOW
LOW
LOW
HIGH
GLL
LOW
HIGH
LOW
HIGH
HIGH
GLR
LOW
HIGH
LOW
HIGH
LOW
LOW
HIGH
LOW
LOW
HIGH
LOW
HIGH
LOW (4)
LOW
HIGH
LOW
LOW
HIGH
LOW-to-HIGH
HIGH
HIGH-to-LOW (5)
HIGH
HIGH
LOW
LOW
LOW
HIGH
LOW
LOW
HIGH
HIGH
HIGH
LOW
Notes
1. X = don’t care.
2. BD, SU and DD logic levels are with respect to SGND;
EXTDR logic levels are with respect to ? LVS.
3. GHL logic levels are with respect to SHL;
GHR logic levels are with respect to SHR;
GLL and GLR logic levels are with respect to PGND.
4. If pin DD = LOW the bridge enters the state (oscillation state and pin BD = LOW and pin SU = HIGH) in the
pre-defined position pin GHL = HIGH, pin GLR = HIGH, pin GLL = LOW and pin GHR = LOW.
5. Only if the level of pin EXTDR changes from HIGH-to-LOW, the level of outputs GHL, GHR, GLL and GLR changes
from LOW-to-HIGH or from HIGH-to-LOW.
2005 Mar 24
7
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