MB39A214APFT-G-JNERE1 Datasheet, PDF (8/56 Pages) Fujitsu Component Limited. – 2ch DC/DC converter IC with PFM/ PWM synchronous rectification

MB39A214A
Parameter
Symbol
Pin
No.
Condition
Value
Unit
Min Typ Max
Error
Threshold voltage
V_TH
4, 9 Ta = +25°C
0.695 0.700 0.705 V
Comparison _{FB pin input current}
I_FB
4, 9 FB1, FB2 = 0.7 V
− 0.1 0 +0.1 µA
Block
VOUT pin input
[Error Comp.] _current
I_VO
3,10 VOUT1, VOUT2 = 1.5 V
— 6.0 8.6 µA
Over Current
Detection
Block
[ILIM Comp.]
Over current detection
21 to 23 PGND − LX1, LX2
offset voltage
V_{OFFILIM 21 to 14 ILIM1, ILIM2 = 500 mV}
ILIM pin current
I_ILIM 20,16 ILIM1, ILIM2 = 0 V
ILIM pin current
Temperature slope
T_ILIM 20,16 Ta = +25°C
− 30 0 +30 mV
− 6 − 5 − 4 µA
ppm/
— 4500* —
°C
Over-
voltage
Protection
Circuit Block
[OVP Comp.]
Over-voltage
detecting voltage
Hysteresis width
Detection delay time
V_OVP
V_HOVP
t_OVP
4, 9 For REF1, REF2 voltage
4, 9
—
—
—
110 115 120 %
— 5* — %
10 15 20 µs
Under-
voltage
Protection
Circuit Block
[UVP Comp.]
Under-voltage
detecting voltage
Hysteresis width
Detection delay time
V_UVP
V_HUVP
t_UVP
4, 9 For REF1, REF2 voltage
4, 9
—
—
—
65 70 75 %
— 10* — %
100 150 200 µs
Over-
temperature
Protection
Circuit Block
[OTP]
Protection
temperature
T_OTPH
—
T_OTPL
—
—
— 150* — °C
—
— 125* — °C
High-side output
on-resistance
Low-side output
on-resistance
Output source
current
Output Block
[DRV]
Output sink current
DRVH1, DRVH2 =
R_OH
24,13 _{− 100 mA}
—4
6Ω
R_OL 24,13 DRVH1, DRVH2 = 100 mA —
1
1.5 Ω
DRVL1, DRVL2 =
R_OH
22,15 _{− 100 mA}
—4
6Ω
R_OL 22,15 DRVL1, DRVL2 = 100 mA —
1
1.5 Ω
I_SOURCE
24,13
22,15
LX1, LX2 = 0 V,
BST1, BST2 = VB
DRVH1, DRVH2 = 2.5 V
Duty ≤ 5%
— − 0.5* — A
LX1, LX2 = 0 V,
24,13 BST1, BST2 = VB
I_SINK
22,15 DRVH1, DRVH2 = 2.5 V
Duty ≤ 5%
— 0.9* — A
Dead time
LX1, LX2 = 0 V,
BST1, BST2 = VB
DRVL1, DRVL2-low to
24 to 22 DRVH1, DRVH2-on
t_D
13 to 15 _{LX1, LX2 = 0 V,}
BST1, BST2 = VB
DRVH1, DRVH2-low to
DRVL1, DRVL2-on
15 25 35 ns
35 50 65 ns
8
DS405-00007-1v0-E