L6229Q 查看數據表（PDF） - STMicroelectronics

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L6229Q

DMOS driver for three-phase brushless DC motor

STMicroelectronics 

L6229Q

Electrical characteristics

Table 6.

Symbol

Electrical characteristics (continued)

(VS = 48 V, TA = 25 °C, unless otherwise specified)

Parameter

Test condition

fCP

Charge pump frequency

TJ = -25 °C to 125 °C (1)

PWM comparator and monostable

Min Typ Max Unit

0.6 1 MHz

IRCOFF

VOFFSET

tprop

tblank

Source current at pin RCOFF

Offset voltage on sense comparator (3)

Turn OFF propagation delay (4)

Internal blanking time on sense

comparator

VRCOFF = 2.5 V

Vref = 0.5 V

Vref = 0.5 V

tON(min) Minimum on time

tOFF PWM recirculation time

IBIAS Input bias current at pin VREF

ROFF = 20 kΩ; COFF = 1 nF

ROFF = 100 kΩ; COFF = 1 nF

Tacho monostable

3.5 5.5

mA

±5

mV

500

ns

1

µs

2.5 3 µs

13

μs

61

μs

10 µA

IRCPULSE Source current at pin RCPULSE

tPULSE Monostable of time

RTACHO Open drain ON resistance

VRCPULSE = 2.5 V

RPUL = 20 kΩ; CPUL = 1 nF

RPUL = 100 kΩ; CPUL = 1 nF

3.5 5.5

mA

12

μs

60

μs

40 60 W

Over current detection and protection

ISOVER Supply overcurrent protection threshold TJ = -25 to 125 °C (2)

2 2.8 3.55 A

ROPDR Open drain ON resistance

IDIAG = 4 mA

40 60 W

IOH

OCD high level leakage current

VDIAG = 5 V

1

µA

tOCD(ON) OCD turn-ON delay time (4)

IDIAG = 4 mA; CDIAG < 100 pF

200

ns

tOCD(OFF) OCD turn-OFF delay time (4)

IDIAG = 4 mA; CDIAG < 100 pF

100

ns

1. Tested at 25 °C in a restricted range and guaranteed by characterization

2. See Figure 3.

3. Measured applying a voltage of 1 V to pin SENSE and a voltage drop from 2 V to 0 V to pin VREF.

4. See Figure 4.

Doc ID 15209 Rev 3

9/28

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