AP4201 datasheet(10/27 Pages) AKM

10 / 27 page

[AP4201]

015008157-E-00

- 10 -

2015/09

Electrical Characteristics

(VIN=12V, GND=PGND=0V, Ta=+25 C, Capacitor at VIN, VDC1 and VDC2 pins = 1.0μF. DRSET=”H”

(fixed current), RISET_R=RISET_G=RISET_B= 33.3kΩ; Recommend Parts, unless otherwise specified)

Parameter

Symbol

min

typ

max

Unit

Conditions

Power Consumption

IDD1

1.2

2.0

DRSET=”L” (open drain)

PWM duty= 0%

IDD2

1.3

2.0

DRSET=”L” (open drain)

PWM duty=50%

IDD3

5.0

8.5

DRSET=”H” (fixed current)

PWM duty= 0%

IDD4

5.0

8.5

DRSET=”L” (fixed current)

PWM duty= 50%

VIN Reset Voltage

VINRST

4.0

4.2

Activated by decreasing VIN from

normal state.

VIN Hysteresis Width

VINHYS

0.2

Hysteresis between VINrst and

VIN set voltage (VINset)

(VINset>VINrst)

LDO1 Output Voltage

VDC1

4.75

5.0

5.25

VIN=12V, IDC1=-30mA (Note 9)

LDO2 Output Voltage

VDC2

1.8

VIN=12V, IDC2=-0mA

LED Current Capability

per Channel

ILEDO

100

DRSET=”L” (open drain)

ILEDC

DRSET= “H” (fixed current)

LED current switching

MOS-FET ON resistance

RLED

9.3

DRSET=”L” (open drain)

LED current= +100mA

LED pin Voltage

(for all 27 channels)

RLED

1.8

(Note 10)

DRSET=”H” (fixed current)

LED current= +50mA

RISET= 20kΩ

0.8

(Note 10)

DRSET=”H” (fixed current)

LED current= +15mA

RISET= 66.7kΩ

LED Current Accuracy 1

ILEDC1

28.05

30.0

31.95

DRSET=”H” (fixed current)

LED Current Accuracy 2

ILEDC2

13.95

15.0

16.05

DRSET=”H” (fixed current)

RISET= 66.7kΩ

LED Current Mismatch

△I

LED

-4

DRSET=”H” (fixed current)

(Note 11)

LED pin off-lead Current

ILEAK_LED

1.0

μA

LED pin voltage= 24V

PWM Period Accuracy

TPWM

-10

+10

All setting value

PWM Setting Range

DPWM

100

All setting value

PWM Setting Error

±1

LSB

PWMSET=”L”

±1

LSB

PWMSET=”H”

Input High-level Voltage

VIH

2.5

5.5

Input Low-level Voltage

VIL

-0.2

0.5

Output High-level

Voltage

VOH

3.7

5.3

IO=-500μA

Output Low-level Voltage

VOL

0.8

IO=+500μA

Input Leak Current

ILI

-1.0

1.0

μA

CSB, SCK, TxD pins

Output Leak Current

ILO

-1.0

1.0

μA

Note 9.

IDC1=-30mA means that internal 5V LDO1 (VDC1 pin) can drive external circuit less than 30mA.

Note 10.

VLED identifies the voltage range. There is a range that cannot be set even less than absolute maximum

voltage (30V) because of the maximum power dissipation. Please refer to “10.8 Protection Functions”.

Note 11

100

(%)

LEDxxMIN

LEDxxMAX

LEDxxMIN

LEDxxMAX

LED









△

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