mx8830 Clare, Inc., mx8830 Datasheet - Page 5

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

MX8830
Drawing No. 0883009
UVLO Circuit
Parameter
V
V
PRDY Source Current
PRDY Sink Current
Delay Circuit
Parameter
Upper Gate-Driver Turn
on Delay Time with
respect to external delay
capacitor
High Side Gate Driver Circuit
Parameter
High Side Gate-Driver
On-Resistance, Sourcing
Current
High Side Gate-Driver
On-Resistance, Sinking
Current
High Side Gate-Driver
Rise-Time
High Side Gate-Driver
Fall-Time
High Side Gate-Driver
Source Current
High Side Gate-Driver
Sink Current
Propagation Delay
DD
DD
Rising Threshold
Falling Threshold
(1)
(1)
(1)
(1)
(1)
UVOL
UVOL
PRDY
PRDY
R
R
t
t
I
I
t
t
R_HGD
F_HGD
SOURCE
SINK
PD_HGD1
PD_HGD2
Symbol
Symbol
HGD_SRC
HGD_SNK
Symbol
t
DLY
RISE
FALL
SOURCE
SINK
Capacitor C
pin to PGND
V
V
C
T
90% of (V
C
T
10% of (V
C
T
90% of (V
C
T
10% of (V
C
C
V
V
BST
BST
R_HGD
F_HGD
R_HGD
F_HGD
LOAD
LOAD
LOAD
LOAD
LOAD_HGD
DLY
DD
SS
– V
– V
= 0pF
-100mV
+ 200mV
= 3nF
= 3nF
= 3nF
= 3nF
measured from 90% to
measured from 90% to
measured from 10% to
measured from 10% to
SW
SW
Conditions
Conditions
HGD
HGD
HGD
HGD
Conditions
= C
= 4.6V
= 4.6V
DLY
5
- V
- V
- V
- V
LOAD_LGD
(pF) from DLY
SW
SW
SW
SW
)
)
)
)
= 3nF
MX8830B/MX8830R/MX8830X
T
T
T
A
A
A
= -40°C to 85°C, V
= -40°C to 85°C, V
= -40°C to 85°C, V
Min
Min
0.6
0.8
Min
4.2
3.9
Typ
Typ
4.25
0.9
1.2
4.4
Typ
13
10
10
DD
DD
DD
0.5
5
= 5V, 4V < V
= 5V, 4V < V
= 5V, 4V < V
www.claremicronix.com
Max
Max
2.2
1.2
4.5
4.5
Max
20
15
35
50
BST
BST
BST
nS/pF
Unit
< 26V
Unit
< 26V
< 26V
Unit
mA
mA
nS
nS
nS
nS
Ω
Ω
A
A
V
V
8/9/07