Diodes AP3585A/B/C - Manual (Page 5)

AP3585A/B/C
Document number: DS36819 Rev. 1 - 2
5 of 18
www.diodes.com
January 2014
© Diodes Incorporated
AP3585A/B/C
A Product Line of
Diodes Incorporated
NEW PROD
UC
T
Electrical Characteristics
(Cont. V
CC
= 12V, T
A
= +25 o C, unless otherwise specified.)
Symbol Parameter Conditions Min Typ Max Unit
POWER ON RESET
V
POR
V
CC
Rising Threshold V
CC
Rising 4.0 4.2 4.4 V
V
POR_HYS
V
CC
Threshold Hysteresis – – 500 – mV
ERROR AMPLIFIER
G
DC_OL Open Loop DC Gain – 55 70 – dB
G
BW Gain-bandwidth Product – – 10 – MHz
SR Slew Rate – 3 6 – V/µs
– Transconductance – – 800 1100 µA/V
– Output Source Current V
FB
< V
REF 80 120 – µA
– Output Sink Current V
FB
> V
REF 80 120 – µA
PWM CONTROLLER GATE DRIVERS
I
UG_SRC
Upper Gate Source Current
V
BOOT
-V
PHASE
= 12V,
V
BOOT
-V
UGATE
= 6V
– -1.0 – A
I
UG_SNK
Upper Gate Sink Current
V
BOOT
-V
PHASE
= 12V,
V
BOOT
-V
UGATE
= 6V
– 1.5 – A
R
UGATE
Upper Gate Sink
Resistance
50mA Source Current – 2 4 Ω
I
LG_SRC
Lower Gate Source Current V
CC
-V
LGATE
= 6V – -1 – A
I
LG_SNK
Lower Gate Sink Current V
LGATE
= 6V – 1.5 – A
R
LGATE
Lower Gate Sink
Resistance
50mA Source Current – 1 2 Ω
–
PHASE Falling to LGATE
Rising Delay V
PHASE
< 1.2V to V
LGATE
>
1.2V
– 30 – ns
–
LGATE Falling to UGATE
Rising Delay V
LGATE
< 1.2V to
(V
UGATE
-V
PHASE
) > 1.2V
– 30 – ns
– Minimum Duty Cycle – – 0 – %
– Maximum Duty Cycle – 75 82 89 %
OSCILLATOR
f
OSC
Oscillator Frequency
AP3585A/B 270 300 330
kHz
AP3585C 180 200 220
∆V
OSC
Ramp Amplitude – – 1.4 – V
P-P
REFERENCE VOLTAGE
V
FB
Feedback Voltage
AP3585A 0.788 0.8 0.812 V
AP3585B/C 0.591 0.6 0.609 V
I
FB
Feedback Bias Current V
FB
= 5V – 10 50 nA
PROTECTION
V
FB_UVP
Under Voltage Protection – 0.3 0.4 0.5 V
V
FB_OVP
Over Voltage Protection
AP3585A – 1.1 –
V
AP3585B/C – 0.8 –
I
OCSET
OC Current Source – 9 10 11 µA
V
OCP_MAX
Built-in Maximum OCP
Voltage
– – 0.375 – V
t
SS
Soft-start Interval
AP3585A – 2 –
ms AP3585B – 1.5 –
AP3585C – 2.4 –
V
COMP/EN
Enable Threshold – 0.25 0.30 0.35 V
T
OTSD
Thermal Shutdown – – +160 – ºC
T
HYS
Thermal Shutdown
Hysteresis
– – +20 – ºC