SC1302A/B/C/D/E/F
Dual High Speed Low-Side
MOSFET Driver
POWER MANAGEMENT
Features
Operating Voltage — +4.5V to +16.5V
Fast rise and fall times (20ns typical with 1000pf load)
Dual MOSFET driver
Peak drive current — 2A
propagation delay — 40ns
8-pin SOIC / MSOP lead free packages. This product is
fully WEEE and RoHS compliant
Enable/disable control
TTL-compatible input
Under voltage lockout with hysteresis
Low shutdown supply current
Over temperature protection
ESD protection
Dual inverting/non-inverting and inverting/non-in-
verting configurations
Description
The SC1302A/B/C/D/E/F family are low cost dual low-side
MOSFET drivers. These drivers accept TTL-compatible
inputs and are capable of supplying high current outputs
(> 2A peak) to external MOSFETs. Fast switching allows
operation up to 1 MHz. The SC1302A/B/C is available in six
configurations: SC1302A is a dual non-inverting, SC1302B
is a dual inverting and SC1302C alone has an inverting
plus one non-inverting output.
The SC1302D/E/F is the derivative part from SC1302A/B/C
with pin 1 (EN) and pin 8 (SHDN) internally tied to VCC.
An under-voltage lockout circuit guarantees that the
driver outputs are low when Vcc is less than 4.5V (typical).
An internal temperature sensor shuts down the driver in
the event of over temperature.
Applications
Switch-mode power supplies
Battery powered applications
Solenoid and motor drives
Typical Application Circuit
July 13, 2009
© 2009 Semtech Corporation
1
SC1302A/B/C/D/E/F
Pin Configuration
SC1302A/D (Dual Non-Inverting)
Ordering Information
Device
SC1302AISTRT
SC1302BISTRT
SC1302CISTRT
SC1302DSTRT
SC1302ESTRT
SOIC-8
-40°C to +125°C
Package
Temperature Range (T
J
)
8-Pin SOIC (A/D) or MSOP (A only)
SC1302B/E (Dual Inverting)
SC1302FSTRT
SC1302AIMSTRT
SC1302BIMSTRT
SC1302CIMSTRT
Notes:
(1) Available in tape and reel only. A reel contains 2,500 devices.
(2) Lead-free package only. Device is WEEE and RoHS compliant.
MSOP-8
-40°C to +125°C
8-Pin SOIC (B/E) or MSOP (B only)
SC1302C/F (Inverting+Non-Inverting)
Top Marking Information
SOIC A/B/C
8-Pin SOIC (C/F) or MSOP (C only)
Top Marking Information
MSOP A/B/C
X=A, B, C
yyww = Date Code
SOIC D/E/F
X=A, B, C
302A = SC1302A
yyww = Date Code
X=D, E, F
yyww = Date Code
2
SC1302A/B/C/D/E/F
Absolute Maximum Ratings
Supply Voltage V
CC
(V) . . . . . . . . . . . . . . . . . . . . . . -0.3 to +20
Input Voltages (V) . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to V
CC
Peak Output Currents (A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Enable Voltage SC1302A/B/C (V) . . . . . . . . . . . -0.3 to V
CC
Shutdown Voltage SC1302A/B/C (V) . . . . . . . . -0.3 to V
CC
Continuous Power Dissipation (W). . . . . . Internally limited
ESD Protection Level (kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Recommended Operating Conditions
Operating Temperature Range (°C) . . . . . . -40 < T
J
< +125
Operating Supply Voltage (V) . . . . . . . . . . . . . . . -0.3 to 16.5
Thermal Information
Thermal Resistance, Junction to Ambient MSOP (°C/W). .206
Thermal Resistance, Junction to Ambient SIOC (°C/W) . . .165
Maximum Junction Temperature (°C) . . . . . . . . . . . . . . +150
Storage Temperature Range (°C) . . . . . . . . . . . -65 to +150
Lead Temperature (Soldering)10s (°C) . . . . . . . . . . . . . +260
Exceeding the above specifications may result in permanent damage to the device or device malfunction. Operation outside of the parameters
specified in the Electrical Characteristics section is not recommended.
DC Electrical Characteristics
Unless otherwise specified, -40ºC < T
A
= T
J
<125°C, V
CC
= 12V, V
IN
= 5V, V
EN
=5V (SC1302A/B/C), V
SHDN
= 5V (SC1302A/B/C)
Parameter
Supply Current
Quiescent Current
Quiescent Current
Quiescent Current
Under-Voltage Lockout
Threshold Voltage
Hysteresis
Enable for SC1302A/B/C
Enable Voltage
Disable Voltage
Delay to Output
(1)
Delay to Output
(1)
Enable Input Current
Symbol
Conditions
Min
Typ
Max
Units
I
Q
I
Q
I
Q
V
CC
< V
START
V
EN
= V
SHDN
= 3V for SC1302A/B/C, V
INA
= V
INB
= 3V
V
SHDN
= 0V for SC1302A/B/C
1
5.7
3
1.8
8.1
8
mA
mA
μA
V
START
V
SHDN
= V
EN
= 3V for SC1302A/B/C, V
INA
= V
INB
= 3V
V
SHDN
= V
EN
= 3V for SC1302A/B/C, V
INA
= V
INB
= 3V
4.2
250
4.5
320
4.7
475
V
mV
V
EN
V
EN
t
D_EN
t
D_DIS
I
EN
0 < V
EN
< V
CC
0 < V
EN
< V
CC
EN from low to high
EN from high to low
0 < V
IN
< V
CC
2.0
0.8
70
55
10
14
19
V
V
ns
ns
μA
3
SC1302A/B/C/D/E/F
Electrical Characteristics (continued)
Unless otherwise specified, -40ºC < T
A
= T
J
<125°C, V
CC
= 12V, V
IN
= 5V, V
EN
=5V (SC1302A/B/C), V
SHDN
= 5V (SC1302A/B/C)
Parameter
Input
High Level Input Voltage
Low Level Input Voltage
Symbol
Conditions
Min
Typ
Max
Units
V
IH
V
IL
0 < V
IN
< V
CC
0 < V
IN
< V
CC
0 < V
IN
< V
CC
, Non-inverting Input(s)
of SC1302A/C/D/F
2.0
0.8
13
18.5
V
V
μA
Input Current
I
IN
0 < V
IN
< V
CC
, Inverting Input(s)
of SC1302B/C/E/F
-8
μA
Output
I
PK_SOURCE
Output Peak Current
I
PK_SINK
Shutdown for SC1302A/B/C
SHDN Input Voltage High
SHDN Input Voltage Low
SHDN Pin current
Thermal Shutdown
Over Temperature Trip Point
(1)
Hysteresis
(1)
T
J_OT
150
10
°C
°C
V
SHDN
V
SHDN
I
SHDN
V
SHDN
= 5V
32
2
0.3
40
V
V
μA
V
OUT
= V
CC
- 0.5V, t
PW
< 10 μs
1600
mA
V
OUT
= 0.5V, t
PW
< 10 μs
1600
mA
AC Electrical Characteristics
Unless otherwise specified, T
A
= T
J
= 25ºC, V
CC
=12V, V
EN
= 5V, C
L
= 1000pF
Parameter
Rise Time
(1)
Fall Time
(1)
Propagation Delay Time
(1)
Propagation Delay Time
(1)
Symbol
t
R
t
F
t
D1
t
D2
Conditions
See Timing Diagram
See Timing Diagram
T
A
= -40°C ~ 125°C
T
A
= -40°C ~ 125°C
Min
Typ
20
20
53
41
Max
Units
ns
ns
70
60
ns
ns
Notes:
(1) Guaranteed by design
(2) Negative sign indicates that the input current flows out of the device.
4
SC1302A/B/C/D/E/F
Typical Characteristics
Rise and Fall Time vs. Supply Voltage
25
C
L
= 1000pF; T
A
= 25°C
80
Rise and Fall Time vs. Capacitive Load
V
CC
= 12V; f = 200kHz; T
A
= 25°C
60
20
Time (ns)
Time (ns)
t
f
40
t
f
t
r
t
r
15
20
10
4
8
12
Supply Voltage (V)
16
0
100
1000
Capacitive Load (pF)
10000
Supply Current vs. Capacitive Load
40
V
CC
= 12V One Driver Running; T
A
= 25°C
15
Input Pin Current
30
Supply Currnt (mA)
10
Non-inverting
5
20
I
IN
(uA)
0
Inverting
10
200kHz
-5
100kHz
0
100
-10
8
V
IN
(V)
1000
Capacitive Load (pF)
10000
0
4
12
5
嵌入式系统
