MB39A214APFT-G-JNERE1 Datasheet, PDF (7/56 Pages) Fujitsu Component Limited. – 2ch DC/DC converter IC with PFM/ PWM synchronous rectification

MB39A214A
„ ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Pin
No.
(Ta = +25°C, VCC = 12 V, EN1, EN2 = 5 V)
Condition
Value
Unit
Min Typ Max
Output voltage
Bias Voltage
Block
[VB Reg.]
Input stability
Load stability
Short-circuit
output current
Under
voltage
Threshold voltage
Lockout
Protection
Circuit Block ^{Hysteresis width}
[UVLO]
Soft-Start/
Discharge
Block
[Soft Start,
Discharge]
Charge current
Electrical discharge
resistance
Discharge end
voltage
V_VB
LINE
LOAD
I_OS
V_TLH
V_THL
V_H
I_CS
R_D
V_VOVTH
18 VB = 0 A
18 VCC = 6 V to 28 V
18 VB = 0 A to − 1 mA
18 VB = 0 V
18 VB pin
18 VB pin
18 VB pin
5,8 CS1, CS2 = 0 V
EN1, EN2 = 0 V,
3,10 _{VOUT1, VOUT2 ≥ 0.15 V}
EN1, EN2 = 0 V,
3,10
VOUT1, VOUT2 pins
5.04 5.20 5.36 V
— 10 100 mV
— 10 100 mV
− 145 − 100 − 75 mA
4.0 4.3 4.6 V
3.7 4.0 4.3 V
— 0.3* — V
− 1.5 −1.0 − 0.75 µA
— 25* — Ω
— 0.2* — V
ON/OFF
Time
Generator
Block
[t_ON
Generator]
ON time
(Preset value 1)
ON time
(Preset value 2)
ON time
(Preset value 3)
Minimum
ON time
(Preset value 1)
Minimum
ON time
(Preset value 2)
Minimum
ON time
(Preset value 3)
t_ON11
t_ON21
t_ON12
t_ON22
t_ON13
t_ON23
t_ONMIN11
t_ONMIN21
t_ONMIN12
t_ONMIN22
t_ONMIN13
t_ONMIN23
FREQ pin GND connection
24
VCC = 12 V, VOUT1 = 1.5 V
FREQ pin GND connection
13
VCC = 12 V, VOUT2 = 1.5V
FREQ pin OPEN
24
VCC = 12 V, VOUT1 = 1.5 V
FREQ pin OPEN
13
VCC = 12 V, VOUT2 = 1.5 V
FREQ pin VB connection
24
VCC = 12 V, VOUT1 = 1.5 V
FREQ pin VB connection
13
VCC = 12 V, VOUT2 = 1.5 V
FREQ pin GND connection
24
VCC = 12 V, VOUT1 = 0V
FREQ pin GND connection
13
VCC = 12 V, VOUT2 = 0V
FREQ pin OPEN
24
VCC = 12 V, VOUT1 = 0V
FREQ pin OPEN
13
VCC = 12 V, VOUT2 = 0V
FREQ pin VB connection
24
VCC = 12V, VOUT1 = 0V
FREQ pin VB connection
13
VCC = 12 V, VOUT2 = 0V
430 538 646 ns
320 400 480 ns
210 263 316 ns
160 200 240 ns
130 163 196 ns
100 125 150 ns
— 136 191 ns
— 103 145 ns
— 77 108 ns
—
58
82 ns
—
55
77 ns
—
43
61 ns
Minimum OFF time t_OFFMIN 24, 13
—
— 410 535 ns
DS405-00007-1v0-E
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