LT1511ISW Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Lista de partido
LT1511ISW
Linear Technology
LT1511ISW Datasheet PDF : 16 Pages
| |||
LT1511
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltage
(VMAX, CLP and CLN Pin Voltage) ...................... 30V
Switch Voltage with Respect to GND ...................... – 3V
Boost Pin Voltage with Respect to VCC ................... 25V
Boost Pin Voltage with Respect to GND ................. 57V
Boost Pin Voltage with Respect to SW Pin .............. 30V
VC, PROG, OVP Pin Voltage ...................................... 8V
IBAT (Average)........................................................... 3A
Switch Current (Peak) .............................................. 4A
Operating Junction Temperature Range
Commercial ........................................... 0°C to 125°C
Industrial ......................................... – 40°C to 125°C
Operating Ambient Temperature
Commercial ............................................ 0°C to 70°C
Industrial ........................................... – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
TOP VIEW
GND** 1
SW 2
BOOST 3
GND** 4
GND** 5
UV 6
GND** 7
OVP 8
CLP 9
CLN 10
COMP1 11
SENSE 12
24 GND**
23 GND**
22 VCC1*
21 VCC2*
20 VCC3*
19 PROG
18 VC
17 UVOUT
16 GND**
15 COMP2
14 BAT
13 SPIN
SW PACKAGE
24-LEAD PLASTIC SO WIDE
TJMAX = 125°C, θJA = 30°C/ W**
Consult factory for Military grade parts.
ORDER PART
NUMBER
LT1511CSW
LT1511ISW
*ALL VCC PINS SHOULD
BE CONNECTED
TOGETHER CLOSE TO
THE PINS
** ALL GND PINS ARE
FUSED TO INTERNAL DIE
ATTACH PADDLE FOR
HEAT SINKING. CONNECT
THESE PINS TO
EXPANDED PC LANDS
FOR PROPER HEAT
SINKING. 30°C/W
THERMAL RESISTANCE
ASSUMES AN INTERNAL
GROUND PLANE
DOUBLING AS A HEAT
SPREADER
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 16V, VBAT = 8V, VMAX (maximum operating VCC) = 28V,
RS2 = RS3 = 200Ω (see Block Diagram), VCLN = VCC. No load on any outputs unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX
Overall
Supply Current
Sense Amplifier CA1 Gain and Input Offset Voltage
(With RS2 = 200Ω, RS3 = 200Ω)
(Measured across RS1)(Note 2)
VCC Undervoltage Lockout (Switch OFF) Threshold
UV Pin Input Current
UV Output Voltage at UVOUT Pin
UV Output Leakage Current at UVOUT Pin
Reverse Current from Battery (When VCC Is
Not Connected, VSW Is Floating)
VPROG = 2.7V, VCC ≤ 20V
VPROG = 2.7V, 20V < VCC ≤ 25V
8V ≤ VCC ≤ 25V , 0V ≤ VBAT ≤ 20V
RPROG = 4.93k
RPROG = 49.3k
TJ < 0°C
VCC = 28V, VBAT = 20V
RPROG = 4.93k
RPROG = 49.3k
TJ < 0°C
Measured at UV Pin
0.2V ≤ VUV ≤ 8V
In Undervoltage State, IUVOUT = 70µA
8V ≤ VUV, VUVOUT = 5V
VBAT ≤ 20V, VUV ≤ 0.4V
q
4.5
6.8
q
4.6
7.0
q
95
100 105
q
8
10
12
7
13
q
90
110
q
7
13
6
14
q
6
7
8
q
0.1
5
q
0.1
0.5
q
0.1
3
3
15
UNITS
mA
mA
mV
mV
mV
mV
mV
mV
V
µA
V
µA
µA
2
Share Link: