DRV8809 Datasheet, PDF (40/44 Pages) Texas Instruments – COMBINATION MOTOR DRIVERS WITH DC-DC CONVERTERS

DRV8809
DRV8810
SLVS854A – JULY 2008 – REVISED JULY 2008 ............................................................................................................................................................... www.ti.com
Table 19. Function Table nORT, Power Down, V_M < 4.5 V Conditions
DEVICE STATUS
CHARGE PUMP
OSCD
OSCM
nORT (RESET)
OUTPUT
nSLEEP
Active
Active
Active
Inactive
nORT
Inactive
Active
Active
Active
V_M < 6 V during power
down
4.5 V < V_M
Active
Inactive
Active
Inactive
Active
Inactive
See timing chart
Active
MODE SETTING
Available
Depend on power
down
Depend on power
down
Unavailable
Table 20. Shutdown Functions
CASE OF SUPPLY
SHUTDOWN
DC-DC Vout1
DC-DC Vout2
DC-DC Vout3
MOTOR
nORT (RESET)
DC-DC Vout1 OCP,
OVP
Shut down
Shut down
Shut down
Shut down
Reset ON (L out)
DC-DC Vout2 OCP,
OVP
Shut down
Shut down
Shut down
Shut down
Reset ON (L out)
DC-DC Vout3 OCP,
OVP
Shut down
Shut down
Shut down
Shut down
Reset ON (L out)
Motor OCP
NA
NA
NA
OFF
Reset one pulse (t_low = 40
ms)
TSD
Shut down
Shut down
Shut down
Shut down
Reset ON (L out)
• Shutdown of DC-DCs is released at V_M > VthV_M+ when V_M is increasing. In case V_M decreases, DC-DCs are
shut down when V_M <VthV_. When V_M decreases and VthV_M+ > V_M > VthV_, the DC-DC output voltage
supervisor is ignored.
• Motor shutdown is released by V_M < 4.5 V or nSLEEP rising edge.
• nORT (reset) ON/OFF time is 40 ms.
• The data in Table 21 is valid if the protection control bits in the EX-setup register are all 0.
Table 21. Modes of Operation⁽¹⁾⁽²⁾
POR
VM
0
1
0
M
OFF
VM
0
X
1
0
Vout
1
0
X
X
1
0
ISD
Vout2 Vout3
0
0
X
X
X
X
X
X
1
X
0
1
0
MOTO
R
0
X
X
X
X
X
1
0
OVP
Vout1
0
X
X
X
X
X
X
1
0
Vout
2
0
X
X
X
X
X
X
X
1
0
Vout
3
0
X
X
X
X
X
X
X
X
1
0
TSD
EXTERNAL
PIN
MOTOR
nSL
EEP
CSEL
0
H
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
X
X
0
Low
X
Hig
h
All off
200 k
Open
IC
BLOCK FUNCTIONS
MOT Vout
OR
1
Vout2
Vout3
nORT
N
On On
On
On
H
Off Off Off
Off
Off
L
O On Off On/Off On/Off H
p S/D S/D S/D
S/D
L
e S/D S/D S/D
S/D
L
r
S/D S/D S/D
S/D
L
a
Off On
On
On
L/P
t
S/D S/D S/D
S/D
L
I
S/D S/D S/D
S/D
L
o S/D S/D S/D
S/D
L
n S/D S/D S/D
S/D
L
S
Off On
On
On
H
X
Off
Off
Off
L
X
On
On
Off
H
X
Off
On
On
H
(1) Valid only if the protection control bits (in EX-setup register) are all 0.
(2) N = Normal operation, S = Sleep mode, 0 = Off, 1 = On, X = Don’t care, S/D = Shutdown, P = Pulse after fault occurs (retry), OFF =
Must toggle sleep terminal or power-on reset (nORT), S/D = Must do a power-on reset (nORT)
40
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