MB39A115 Datasheet, PDF (7/42 Pages) Fujitsu Component Limited. – 5 ch DC/DC Converter IC with Synchronous Rectification

MB39A115
■ ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Condition
Rating
Unit
Min
Max
Power supply voltage
VCC VCC, VCCO terminals
⎯
12
V
Output current
IO OUT1 to OUT5 terminals
⎯
20
mA
Peak output current
IOP
OUT1 to OUT5 terminals
Duty ≤ 5% (t = 1/fOSC × Duty)
⎯
400
mA
Power dissipation
Ta ≤ +25 °C (TSSOP-38P)
PD
Ta ≤ +25 °C (BCC-40P)
⎯
1680*¹
mW
⎯
1020*²
mW
Storage temperature
TSTG
⎯
−55
+125
°C
*1 : When mounted on a 76 × 76 × 1.6 mm FR-4 boards.
*2 : When mounted on a 117 × 84 × 0.8 mm FR-4 boards.
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
■ RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Condition
Min
Start power supply voltage
VCC
VCC, VCCO terminals
(ch.5)
1.7
Power supply voltage
VCC
VCC, VCCO terminals
(ch.1 to ch.5)
2.5
Reference voltage output current IREF VREF terminal
−1
Input voltage
−INE1 to −INE5 terminals
0
VINE
−INS terminal
0
VDTC DTC2 to DTC5 terminals
0
Control Input voltage
VCTL
CTL, CTL3 to CTL5
terminals
0
Output current
IO OUT1 to OUT5 terminals
−15
Oscillation frequency
fOSC
*
0.2
Timing capacitor
CT
⎯
27
Timing resistor
RT
⎯
3.0
Soft-start capacitor
CS CS1 to CS5 terminals
⎯
Short-circuit detection capacitor
CSCP
⎯
⎯
Reference voltage output
capacitor
CREF
⎯
⎯
Operating ambient temperature
Ta
⎯
−30
* : Refer to “■ SETTING THE TRIANGULAR WAVE OSCILLATION FREQUENCY”.
Value
Typ
⎯
Unit
Max
11
V
7
11
V
⎯
0
mA
⎯ VCC − 0.9 V
⎯
VREF
V
⎯
VREF
V
⎯
11
V
⎯
+15 mA
1.0
2.0 MHz
100
680 pF
6.2
39
kΩ
0.1
1.0
µF
0.1
1.0
µF
0.1
1.0
µF
+25
+85
°C
7