RT9212PC datasheet(5/14 Pages) RICHTEK

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RT9212

Preliminary

DS9212-05 March 2007

www.richtek.com

Electrical Characteristics

(VCC = 5V, TA = 25°C, unless otherwise specified)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

VCC Supply Current

Nominal Supply Current

ICC

OCSET1/SD, OCSET2/SD = VCC;

UGATE1 & 2, LGATE1 & 2 Open

Shutdown Supply

ICCSD

(OCSET1/SD, OCSET2/SD) = 0V

Power-On Reset

POR Threshold

VCCRTH

VOCSET1/SD, OCSET2/SD = 4.5V

VCC Rising

3.7

4.1

4.5

Hysteresis

VCCHYS VOCSET1/SD, OCSET2/SD = 4.5V

0.5

Reference

Error Amp Reference Voltage

Tolerance

ΔVEAR

Error Amp Reference

VREF

VCC = 5V

0.784

0.8

0.816

Oscillator

Free Running Frequency

fOSC

VCC = 5V

275

300

325

kHz

Ramp Amplitude

ΔVOSC

1.9

VP-P

V1 Error Amplifier (External Compensation)

DC Gain

Gain-Bandwidth Product

GBW

MHz

Slew Rate

COMP = 10pF

μs

To be continued

Recommended Operating Conditions

(Note 3)

Supply Voltage, VCC ------------------------------------------------------------------------------------------------- 5V

± 5 %

Ambient Temperature Range --------------------------------------------------------------------------------------- 0

°C to 70°C

Junction Temperature Range --------------------------------------------------------------------------------------- 0

°C to 125°C

Absolute Maximum Ratings

(Note 1)

Supply Voltage, VCC ------------------------------------------------------------------------------------------------- 7V

BOOT, VBOOT - VPHASE----------------------------------------------------------------------------------------------- 7V

Input, Output or I/O Voltage ---------------------------------------------------------------------------------------- GND-0.3V to 7V

Package Thermal Resistance

TSSOP-24,

θJA -------------------------------------------------------------------------------------------------------- 100°C/W

Junction Temperature ------------------------------------------------------------------------------------------------ 150

°C

Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------- 260

°C

Storage Temperature Range ---------------------------------------------------------------------------------------

− 65°C to 150°C

ESD Susceptibility (Note 2)

HBM (Human Body Mode) ----------------------------------------------------------------------------------------- 2kV

MM (Machine Mode) ------------------------------------------------------------------------------------------------- 200V

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