LTC1693-5
High Speed Single
P-Channel MOSFET Driver
FEATURES
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DESCRIPTIO
Single MOSFET Driver in MSOP Package
1.5A Peak Output Current
16ns Rise/Fall Times at V
CC
= 12V, C
L
= 1nF
Wide V
CC
Range: 4.5V to 13.2V
CMOS Compatible Input with Hysteresis
Input Threshold Is Independent of V
CC
Driver Input Can Be Driven Above V
CC
Undervoltage Lockout
Thermal Shutdown
The LTC
®
1693-5 drives power P-channel MOSFETs at
high speed. The 1.5A peak output current reduces switch-
ing losses in MOSFETs with high gate capacitance.
The LTC1693-5 is a single driver with an output polarity
select pin. The MOSFET driver offers V
CC
independent
CMOS input thresholds with 1.2V of typical hysteresis. It
can level-shift the input logic signal up or down to the rail-
to-rail V
CC
drive for the external MOSFET.
The LTC1693-5 contains an undervoltage lockout circuit
and a thermal shutdown circuit that disables the external
P-channel MOSFET gate drive if activated.
The LTC1693-5 comes in an 8-lead MSOP package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
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Power Supplies
High Side Drivers
Motor/Relay Control
Line Drivers
Battery Chargers
TYPICAL APPLICATIO
High Efficiency 1.5A Li-Ion Battery Charger
V
IN
5V TO 6V
POSITION CAPACITOR CLOSE TO LTC1732
MBRS130LT3
332Ω
332Ω
8
V
CC
1µF
0.47µF
0.082Ω
0.25W
22µF
CERAMIC
4.7Ω
8
POSITION CAPACITOR
CLOSE TO SENSE RESISTOR
Si2305DS
MBRS130LT3
18.2k
SENSE
LTC1732
3
10
4
CHRG
ACPR
TIMER
GND SEL
5
0.1µF
AVX 0603ZC104KAT1A
USE LOW TEMPERATURE
COEFFICIENT CAPACITOR
2
V
CC
SEL
DRV
BAT
PROG
9
7
1
6
1
LTC1693-5CMS8
4
37
22µF
CDRH6D38-220NC
1-CELL
Li-Ion BATTERY
+
–
+
100µF
1693-5 TA01
CHARGE RATE
≈1.5A
(DEPENDING ON V
IN
AND BATTERY VOLTAGE)
U
U
U
1
LTC1693-5
ABSOLUTE
MAXIMUM
RATINGS
(Note 1)
PACKAGE/ORDER INFORMATION
TOP VIEW
IN
NC
PHASE
GND
1
2
3
4
8
7
6
5
V
CC
OUT
NC
NC
Supply Voltage (V
CC
) .............................................. 14V
Inputs (IN, PHASE) ................................... – 0.3V to 14V
Driver Output ................................. – 0.3V to V
CC
+ 0.3V
Junction Temperature .......................................... 150°C
Operating Temperature Range ..................... 0°C to 70°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
ORDER PART
NUMBER
LTC1693-5CMS8
MS8 PART
MARKING
LTSG
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 200°C/ W
Consult factory for parts specified with wider operating temperature ranges.
The
q
denotes specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 12V, unless otherwise noted.
SYMBOL PARAMETER
V
CC
I
CC
I
CC(SW)
Input
V
IH
V
IL
I
IN
V
PH
I
PH
Output
V
OH
V
OL
R
ONL
R
ONH
I
PKL
I
PKH
t
RISE
t
FALL
t
PLH
t
PHL
High Output Voltage
Low Output Voltage
Output Pull-Down Resistance
Output Pull-Up Resistance
Output Low Peak Current
Output High Peak Current
Output Rise Time
Output Fall Time
Output Low-High Propagation Delay
Output High-Low Propagation Delay
C
OUT
= 1nF
C
OUT
= 4.7nF
C
OUT
= 1nF
C
OUT
= 4.7nF
C
OUT
= 1nF
C
OUT
= 4.7nF
C
OUT
= 1nF
C
OUT
= 4.7nF
q
q
q
q
q
q
q
q
ELECTRICAL CHARACTERISTICS
Supply Voltage Range
Quiescent Current
Switching Supply Current
High Input Threshold
Low Input Threshold
Input Pin Bias Current
PHASE Pin High Input Threshold
PHASE Pin Pull-Up Current
CONDITIONS
PHASE = 12V, IN = 0V
C
OUT
= 4.7nF, f
IN
= 100kHz
q
q
MIN
4.5
200
TYP
360
7.2
MAX
13.2
550
10
3.1
1.7
±10
6.5
45
UNITS
V
µA
mA
V
V
µA
V
µA
V
q
q
q
q
2.2
1.1
4.5
10
11.92
2.6
1.4
±0.01
5.5
20
11.97
30
2.85
3.00
1.70
1.40
17.5
48.0
16.5
42.0
38.0
40.0
32
35
PHASE = 0V
I
OUT
= –10mA
I
OUT
= 10mA
q
q
q
75
Switching Timing (Note 2)
35
85
35
75
70
75
70
75
ns
ns
ns
ns
ns
ns
ns
ns
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
All AC timing specificatons are guaranteed by design and are not
production tested.
2
U
W
U
U
W W
W
mV
Ω
Ω
A
A
LTC1693-5
TYPICAL PERFOR A CE CHARACTERISTICS
IN Threshold Voltage vs V
CC
2.75
T
A
= 25°C
3.00
INPUT THRESHOLD VOLTAGE (V)
INPUT THRESHOLD VOLTAGE (V)
2.50
V
IH
2.25
2.00
1.75
1.50
1.25
1.00
5
6
7
9
8
V
CC
(V)
10
11
12
2.75
2.50
2.25
2.00
1.75
1.50
1.25
1.00
– 50 –25
0
V
IL
V
IH
INPUT THRESHOLD HYSTERESIS (V)
V
IL
PHASE Threshold Voltage vs V
CC
6
PHASE THRESHOLD VOLTAGE (V)
T
A
= 25°C
5
V
PH(H)
4
V
PH(L)
3
2
1
0
5
6
7
9
8
V
CC
(V)
10
11
12
TIME (ns)
18
t
FALL
16
14
12
10
5
6
7
9
8
V
CC
(V)
10
11
12
TIME (ns)
Rise/Fall Time vs C
OUT
120
T
A
= 25°C
V
CC
= 12V
100 f
IN
= 100kHz
80
55
50
45
40
TIME (ns)
TIME (ns)
TIME (ns)
60
40
20
0
1
10
100
C
OUT
(pF)
1000
10000
1693-5 G07
t
RISE
t
FALL
U W
1693-5 G01
IN Threshold Voltage
vs Ambient Temperature
V
CC
= 12V
IN Threshold Hysteresis
vs Ambient Temperature
1.4
1.3
1.2
V
IH
-V
IL
1.1
1.0
0.9
0.8
– 50
V
CC
= 12V
50
75 100
25
AMBIENT TEMPERATURE (°C)
125
25
75 100
– 25
0
50
AMBIENT TEMPERATURE (°C)
125
1693-5 G02
1693-5 G03
Rise/Fall Time vs V
CC
24
22
20
t
RISE
20
Rise/Fall Time vs Ambient
Temperature
T
A
= 25°C
C
OUT
= 1nF
f
IN
= 100kHz
19
18
17
16
15
14
13
12
11
10
50
25
0
75 100
–50 –25
AMBIENT TEMPERATURE (°C)
125
V
CC
= 12V
C
OUT
= 1nF
f
IN
= 100kHz
t
RISE
t
FALL
1693-5 G04
1693-5 G05
1693-5 G06
Propagation Delay vs V
CC
T
A
= 25°C
C
OUT
= 1nF
f
IN
= 100kHz
t
PLH
t
PHL
40
50
45
Propagation Delay vs Ambient
Temperature
V
CC
= 12V
C
OUT
= 1nF
f
IN
= 100kHz
35
30
25
20
t
PLH
35
t
PHL
30
25
15
10
5
6
7
8
9
V
CC
(V)
10
11
12
20
– 50 – 25
50
100
25
75
0
AMBIENT TEMPERATURE (°C)
125
1693-5 G08
1693-5 G09
3
LTC1693-5
TYPICAL PERFOR A CE CHARACTERISTICS
Propagation Delay vs C
OUT
50
OUTPUT SATURATION VOLTAGE (mV)
T
A
= 25°C
V
CC
= 12V
f
IN
= 100kHz
150
V
OL
(50mA)
100
40
TIME (ns)
QUIESCENT CURRENT (µA)
t
PLH
30
t
PHL
20
1
10
100
C
OUT
(pF)
1000
10000
1693-5 G10
Switching Supply Current vs C
OUT
100
SWITCHING SUPPLY CURRENT (mA)
90
80
70
T
A
= 25°C
V
CC
= 12V
50
40
30
20
10
0
1
10
100
C
OUT
(pF)
1000
10000
1693-5 G13
V
OL
(mV)
60
750kHz
V
OH
vs Output Current
350
300
250
T
A
= 25°C
V
CC
= 12V
POWER DISSIPATION (mW)
V
OH
(mV)
200
150
100
50
0
0 10 20 30 40 50 60 70 80 90 100
OUTPUT CURRENT (mA)
1693-5 G15
4
U W
500kHz
Output Saturation Voltage
vs Temperature
200
350
Quiescent Current vs V
CC
T
A
= 25°C
V
IN
= 0V
300
V
CC
= 12V
V
OH
(50mA) wrt V
CC
250
200
50
V
OH
(10mA) wrt V
CC
V
OL
(10mA)
0
– 55 – 35 –15
150
100
5 25 45 65 85 105 125
TEMPERATURE (°C)
1693-5 G11
5
6
7
9
8
V
CC
(V)
10
11
12
1693-5 G12
V
OL
vs Output Current
300
250
200
V
OL
150
100
50
0
0
10 20 30 40 50 60 70 80 90 100
OUTPUT CURRENT (mA)
1693-5 G14
T
A
= 25°C
V
CC
= 12V
200kHz
100kHz
25kHz
Thermal Derating Curve
1400
T
J
= 125°C
1200
1000
800
600
400
200
0
– 55 – 35 –15 5 25 45 65 85 105 125
AMBIENT TEMPERATURE (°C)
1693-5 G16
V
OH
LTC1693-5
PIN FUNCTIONS
IN (Pin 1):
Driver Input. The input has V
CC
independent
thresholds with hysteresis to improve noise immunity.
NC (Pins 2, 5, 6):
No Connect.
PHASE (Pin 3):
Output Polarity Select. Connect this pin to
V
CC
or leave it floating for noninverting operation. Ground
this pin for inverting operation. The typical PHASE pin
input current when pulled low is 20µA.
GND (Pin 4):
Driver Ground. Connect to a low impedance
ground. The V
CC
bypass capacitor should connect directly
to this pin.
OUT (Pin 7):
Driver Output.
V
CC
(Pin 8):
Power Supply Input. The source of the exter-
nal P-MOSFET should also connect directly to this pin.
This minimizes the AC current path and improves signal
integrity.
TI I G DIAGRA
W
U
U
UW
U
INPUT RISE/FALL TIME < 10ns
INPUT
V
IH
V
IL
NONINVERTING
OUTPUT OPERATION
t
r
t
PLH
INVERTING
OUTPUT OPERATION
90%
10%
t
f
t
PHL
t
f
t
PHL
90%
10%
t
r
t
PLH
1693-5 TD
5
嵌入式系统
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