RT4832A

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is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS4832A-00

January

2017

8

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

DSV Switching Frequency

0.9

1

1.1

MHz

Maximum Duty Cycle

DMXDSV

90

93

--

%

DSV N-MOSFET Ron

RonNDSV

0.05

0.3

0.6



DSV P-MOSFET Ron

RonPDSV

0x0F[5:0] = 010100

0.05

0.5

1



Charge Pump Equivalent

Resistance

Reqx1

--

2

--



VPOS Discharge Resistor

0x0C[4] = 1

--

70

--



VCPOUT Discharge Resistor

0x0C[3] = 1

--

20

--



LCMOUT Current Limit

0x0E[5:0] = 010100

0.88

1.1

1.32

A

POS Short Protection Voltage

--

0.8 x

--

V

CPOUT Short Protection

Voltage

--

0.25



0.8 x

(

OUT)

--

V

Logic Control (PWM, EN, ENP, ENM, SCL, SDA, TXMASK, STRB)

Input Logic Low

--

--

0.4

V

Input Logic High

1.4

--

--

V

Note 1.

Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are

stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the

operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect

device reliability.

Note 2.

effective-thermal-conductivity four-layer test board on a JEDEC 51-7 thermal measurement standard.

Note 3. Devices are ESD sensitive. Handling precaution recommended.

Note 4. The device is not guaranteed to function outside its operating conditions.