LT3420EMS-1 Linear Technology, LT3420EMS-1 Datasheet - Page 2

• Manufacturer Part Number: LT3420EMS-1
• Description: IC PHOTOFLASH CHARGER CAP 10MSOP
• Manufacturer: Linear Technology

Specifications of LT3420EMS-1

• Applications: Photoflash Capacitor Charger
• Current - Supply: 90µA
• Voltage - Supply: 2.2 V ~ 16 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PACKAGE/ORDER
ABSOLUTE AXI U RATI GS
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LT3420/LT3420-1
(Note 1)
V
V
SW Voltage (Note 2)
SEC Current ...................................................... ±200mA
R
R
CHARGE Voltage ...................................................... 16V
CT Voltage .............................................................. 1.5V
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
PARAMETER
Minimum Operating Voltage, V
Maximum Operating Voltage, V
V
Minimum V
Maximum V
V
R
R
Quiescent Current
Quiescent Current in Shutdown
2
CC
BAT
REF
REF
CC
BAT
FB
REF
LT3420 ................................................................ 38V
LT3420-1 ............................................................ 50V
UVLO Hysteresis
UVLO Hysteresis
Threshold Voltage
Pin Bias Current
Voltage .............................................................. 16V
Current ........................................................... ±3mA
Voltage ............................................................ 16V
Voltage ........................................................... 2.5V
T
R
V
10-LEAD (3mm × 3mm) PLASTIC DFN
GND
JMAX
R
V
BAT
REF
CC
FB
AND MUST BE SOLDERED TO PCB
BAT
BAT
EXPOSED PAD IS GND (PIN 11)
= 125°C, θ
1
2
3
4
5
Voltage
Voltage
DD PACKAGE
TOP VIEW
JA
11
W
= 43°C/W, θ
CC
CC
10
9
8
7
6
JC
= 3°C/W
W W
C
CHARGE
DONE
SEC
SW
T
INFORMATION
U
W
ORDER PART
LT3420EDD
LT3420EDD-1
MARKING
NUMBER
DD PART
U
LBJW
LBJX
A
= 25°C. V
CONDITIONS
V
V
V
V
RREF
RFB
RREF
CHARGE
The
U
= V
= 0V, Switching
= 1.1V, Not Switching
●
BAT
= 0V, V
CC
denotes the specifications which apply over the full operating
= V
– 0.2V (Note 4)
BAT
DONE Voltage .......................................................... 16V
Current into DONE Pin .......................................... ±1mA
Maximum Junction Temperature .......................... 125°C
Operating Ambient Temperature Range
Storage Temperature Range ................. – 40°C to 125°C
Lead Temperature (Soldering, 10 sec)
IN
= 3.3V
T
(Note 3) .............................................. – 40°C to 85°C
(For MS Package only) ..................................... 300°C
JMAX
= 3.3V, V
R
V
GND
V
R
REF
BAT
CC
FB
= 125°C, θ
10-LEAD PLASTIC MSOP
1
2
3
4
5
(4-LAYER BOARD)
MS PACKAGE
CHARGE
TOP VIEW
JA
= 100°C/W, θ
= V
CC
JC
10
9
8
7
6
unless otherwise noted. (Note 3)
= 45°C/W
●
●
C
CHARGE
DONE
SEC
SW
T
0.975
MIN
0.98
MS PART MARKING
1.00
0.01
ORDER PART
TYP
275
2.2
1.6
40
90
LT3420EMS
LT3420EMS-1
2
NUMBER
LTYH
LTAJG
1.025
MAX
1.02
130
2.5
1.8
16
16
4
1
UNITS
3420fb
mV
mV
µA
µA
µA
V
V
V
V
V
V