mx8830 Clare, Inc., mx8830 Datasheet - Page 6

• Manufacturer Part Number: mx8830
• Description: Synchronous Buck Mosfet Driver
• Manufacturer: Clare, Inc.

*Notes:
MX8830
Drawing No. 0883009
Low Side Gate Driver Circuit
Parameter
Low Side Gate-Driver
On-Resistance, Sourcing
Current
Low Side Gate-Driver
On-Resistance, Sinking
Current
Low Side Gate-Driver
Rise-Time
Low Side Gate-Driver
Fall-Time
Low Side Gate-Driver
Source Current
Low Side Gate-Driver
Sink Current
Propagation Delay
Shut Down Circuit Characteristics
Parameter
Propagation Delay
Propagation Delay
Propagation Delay
Propagation Delay
PWM Tri-State
PWM Tri-State
(1) See Timing Diagram in Figure 4
(2) See Timing Diagram in Figure 5
(3) See Timing Diagram in Figure 6
(1)
(2)
(2)
(3)
(3)
(1)
(1)
(1)
(1)
R
R
t
t
I
I
t
t
t
t
t
t
T
T
R_LGD
F_LGD
SOURCE
SINK
PD_LGD1
PD_LGD2
PD_LGDSD1
PD_LGDSD2
PD_GDSD1
PD_GDSD2
Symbol
Symbol
pd_tri1
pd_tri2
LGD_SRC
LGD_SNK
V
V
C
T
90% of (V
C
T
10% of (V
C
T
90% of (V
C
T
10% of (V
C
C
Turn On Delay
Turn Off Delay
DD
DD
R_LGD
F_LGD
R_LGD
F_LGD
LOAD
LOAD
LOAD
LOAD
LOAD_HGD
DLY
– V
– V
= 0pF
= 3nF
= 3nF
= 3nF
= 3nF
measured from 90% to
measured from 90% to
measured from 10% to
measured from 10% to
PGND
PGND
Conditions
Conditions
LGD
LGD
LGD
LGD
= C
6
= 4.6V
= 4.6V
– V
- V
– V
- V
LOAD_LGD
SW
SW
PGND
PGND
)
)
)
)
= 3nF
MX8830B/MX8830R/MX8830X
T
T
A
A
= -40°C to 85°C, V
= -40°C to 85°C, V
Min
0.67
Min
1.0
Typ
Typ
400
800
500
500
1.0
1.3
12
25
10
DD
DD
9
= 5V, 4V < V
= 5V, 4V < V
www.claremicronix.com
Max
Max
18
12
60
20
2
1
BST
BST
Unit
< 26V
Unit
< 26V
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
Ω
Ω
A
A
8/9/07