CS5323-D datasheet(6/16 Pages) ONSEMI

部品番号	CS5323-D

部品情報	Three-Phase Buck Controller with 5-Bit DAC

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CS5323

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6

ELECTRICAL CHARACTERISTICS (continued) (0

°C < TA < 70°C; 0°C < TJ < 85°C; 4.7 V < VCC < 14 V; CGATE = 100 pF,

RR(OSC) = 53.6 k, CCOMP = 0.1 µF, CREF = 0.1µF, DAC Code 10000, CVCC = 0.1 µF, ILIM ≥ 1.0 V; unless otherwise specified.)

Characteristic

Test Conditions

Min

Typ

Max

Unit

Current Sensing and Sharing

CS1–CS3 Input Bias Current

V(CSx) = V(CSREF) = 0 V

–

0.2

2.0

µA

CSREF Input Bias Current

–

0.6

2.0

µA

Current Sense Amplifier Gain

–

3.7

4.2

4.7

V/V

Current Sense Amp Mismatch

(The sum of gain and offset errors)

0 < (CSx – CSREF) < 50 mV

–5.0

–

5.0

mV

Current Sense Amplifiers Input

Common Mode Range Limit

Note 4

0

–

VCC – 2

V

Current Sense Input to ILIM Gain

0.25 V < 1.20 V

5.0

6.5

8.0

V/V

Current Limit Filter Slew Rate

Note 4

7.5

15

40

mV/

µs

ILIM Bias Current

0 < ILIM < 1.0 V

–

0.1

1.0

µA

Single Phase Pulse by Pulse

Current Limit: V(CSx) –

V(CSREF)

–

75

105

115

mV

Current Share Amplifier Bandwidth

Note 4

1.0

–

mHz

Reference Output

VREF Output Voltage

0 mA < I(VREF) < 1.0 mA

3.2

3.3

3.4

V

General Electrical Specifications

VCC Operating Current

VFB = COMP(no switching)

–

23

28

mA

VCC Start Threshold

GATEs switching, COMP charging

4.05

4.60

4.70

V

VCC Stop Threshold

GATEs stop switching, COMP discharging

3.75

4.4

4.65

V

VCC Hysteresis

GATEs not switching, COMP not charging

100

200

300

mV

4. Guaranteed by design. Not tested in production.

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