A8739EEETR-T Allegro Microsystems Inc, A8739EEETR-T Datasheet - Page 5

• Manufacturer Part Number: A8739EEETR-T
• Description: Photoflash Capacitor Charger
• Manufacturer: Allegro Microsystems Inc
• Type: Flash/Torchr

Specifications of A8739EEETR-T

• Number Of Outputs: *
• Internal Driver: No
• Type - Primary: Flash/Torch
• Voltage - Supply: *
• Mounting Type: Surface Mount
• Package / Case: 8-UFDFN Exposed Pad
• Operating Temperature: *
• Voltage - Output: *
• Frequency: *
• Current - Output / Channel: *
• Internal Switch(s): Yes
• Efficiency: 75%
• Topology: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1365-2

ELECTRICAL CHARACTERISTICS
specifications guaranteed from −40°C to 85°C ambient, unless otherwise noted
A8739
Charge Pin Programming
ILIM Programming High at CHARGE pin 2
ILIM Programming Low at CHARGE pin 2
Total ILIM Setup Time at CHARGE pin 2
Switch-Off Timeout
Switch-On Timeout
Output Comparator Trip Voltage
¯ D ¯ ¯ O ¯ ¯ N ¯ ¯ E ¯ Leakage Current
Output Low Voltage
Output Voltage Overdrive
dV/dt Threshold for ZVS Comparator
IGBT Driver
TRIG Input Voltage
TRIG Pull-Down Resistor
GATE Resistance to VIN_DRV
GATE Resistance to GND
Propagation Delay (Rising)
Propagation Delay (Falling)
Output Rise Time
Output Fall Time
GATE Pull-Down Resistor
1
2
3
Current limit guaranteed by design and correlation to static test.
Specifications throughout the range T
See IGBT Drive Timing Definition diagram for further information.
3
3
2
2
2
3
3
A
Ultra-Small Mobile Adjustable Xenon Photoflash
= –40°C to 85°C guaranteed by design and characterization.
(Continued) Typical values are valid at V
V
V
V
V
V
R
R
t
V
R
I
V
t
V
V
ILIM(H)init
OUTTRIP1
OUTTRIP2
OUTTRIP3
OUTTRIP4
OUTTRIP5
t
t
SnkDS(on)
t
DONELK
SrcDS(on)
R
t
ILIM(SU)
off(max)
on(max)
dV/dt
ILIM(H)
TRIG(H)
TRIGPD
ILIM(L)
OUTOV
TRIG(L)
DONEL
GTPD
t
t
Dr
Df
t
t
r
f
Initial Pulse
Subsequent Pulses
Measured as V
Measured as V
Measured as V
Measured as V
Measured as V
32 μA into ¯ D ¯ ¯ O ¯ ¯ N ¯ ¯ E ¯ pin
Pulse width = 200 ns (90% to 90%)
Measured at SW pin
Input = logic high, over input supply range
Input = logic low, over input supply range
V
V
Measurement taken at GATE pin,
C
Capacitor Charger with IGBT Driver
GATE
GATE
L
= 6500 pF
= 1.8 V
= 1.8 V
SW
SW
SW
SW
SW
– V
– V
– V
– V
– V
BAT
BAT
BAT
BAT
BAT
IN
(R
(R
(R
(R
(R
= V
BAT
BAT
BAT
BAT
BAT
BAT
= 0 Ω)
= 845 Ω)
= 2.32 kΩ)
= 4.87 kΩ)
= 9.09 kΩ)
= 3.6 V; T
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
A
= 25°C, except
0.2
0.2
15
31
–
–
–
–
–
–
–
–
–
–
–
1
–
–
–
–
–
–
–
–
–
31.5
31.0
30.5
30.0
29.5
200
200
100
290
380
18
18
20
21
27
25
60
20
–
–
–
–
–
–
–
indicates
100
400
0.4
32
–
–
–
–
–
–
–
–
–
–
1
–
–
–
–
–
–
–
–
–
–
V/μs
mV
mV
kΩ
μA
μs
μs
μs
μs
μs
μs
kΩ
ns
ns
ns
ns
V
V
V
V
V
V
Ω
Ω
V
5