- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄359155 > MCZ33395EW (飛思卡爾半導(dǎo)體(中國(guó))有限公司) Three-Phase Gate Driver IC PDF資料下載
參數(shù)資料
| 型號(hào)： | MCZ33395EW |
| 廠商： | 飛思卡爾半導(dǎo)體(中國(guó))有限公司 |
| 英文描述： | Three-Phase Gate Driver IC |
| 中文描述： | 三相柵極驅(qū)動(dòng)集成電路 |
| 文件頁(yè)數(shù)： | 10/16頁(yè) |
| 文件大?。?/td> | 282K |
| 代理商： | MCZ33395EW |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)當(dāng)前第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
Analog Integrated Circuit Device Data
Freescale Semiconductor
10
33395
FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
GATE DRIVE CIRCUITS
The gate drive outputs (GDH1, GDH2, etc.) supply the
peak currents required to turn ON and hold ON the
MOSFETs, as well as turn OFF and hold OFF the MOSFETs.
CHARGE PUMP
The current capability of the charge pump is sufficient to
supply the gate drive circuit’s demands when PWMing at up
to 28 kHz. Two external charge pump capacitors and a
reservoir capacitor are required to complete the charge
pump’s circuitry.
Charge reservoir capacitance is a function of the total
MOSFET gate charge (Q
G
) gate drive voltage level relative to
the source (V
GS
) and the allowable sag of the drive level
during the turn-on interval (V
SAG
). C
RES
can be expressed by
the following formula:
For example, for Q
G
= 60 nC, V
GS
= 14 V, V
SAG
= 0.2 V:
Proper charge pump capacitance is required to maintain,
and provide for, adequate gate drive during high demand
turn-ON intervals. Use the following formula to determine
values for C
P1
and
C
P2
:
For example, for the above determination of C
RES
=
0.15
μ
F:
By averaging these two values, the proper C
P
n
value can
be determined:
C
P1
and C
P2
=(0.0075
μ
F + 0.015
μ
F)
÷
2 = 0.01
μ
F
THERMAL SHUTDOWN FUNCTION
The device has internal temperature sensing circuitry
which activates a protective shutdown function should the die
reach excessively elevated temperatures. This function
effectively limits power dissipation and thus protects the
device.
OVERVOLTAGE SHUTDOWN FUNCTION
When the supply voltage (V
IGN
) exceeds the specified
over- voltage shutdown level, the part will automatically shut
down to protect both internal circuits as well as the load.
Operation will resume upon return of V
IGN
to normal
operating levels.
LOW VOLTAGE RESET FUNCTION
When the logic supply voltage (V
DD
) drops below the
minimum voltage level or when the part is initially powered
up, this function will turn OFF and hold OFF the external
MOSFETs until the voltage increases above the minimum
voltage level required for normal operation.
CONTROL LOGIC
The control logic block controls when the low-side and
high-side drivers are enabled. The logic implements the Truth
Table found in the specification and monitors the M0, M1,
PWM, CL, OT, OV, LSE, and HSE pins. Note that the drivers
are enabled 3
μ
s after the PWM edge. During complimentary
chop mode the high-side and low-side drives are alternatively
enabled and disabled during the PWM cycle. To prevent
shoot-through current, the high-side drive turn-on is delayed
by t
D1
, and the low-side drive turn on is delayed by t
D2
(see
Figure 4
, page
8
).
Note that the drivers are disabled during an
overtemperature or overvoltage fault. A flip-flop keeps the
drive off until the following PWM cycle. This prevents erratic
operation during fault conditions. The current limit circuit also
uses a flip-flop for latching the drive off until the following
PWM cycle.
Note
PWM must be toggled after POR, Thermal Limit, or
overvoltage faults to re-enable the gate drivers.
VGDH
The VGDH
pin is used to provide a gate drive signal to a
reverse battery protection MOSFET. If reverse battery
protection is desired, V
IGN
would be applied to the source of
an external MOSFET, and the drain of the MOSFET would
then deliver a "protected" supply voltage (V
IGNP
) to the three
phase array of external MOSFETs as well as the supply
voltage to the V
IGNP
pin of the IC.
In a reverse polarity event (e.g., an erroneous installation
of the system battery), the V
GDH
signal will not be supplied to
the external protection MOSFET, and the MOSFET will
remain off and thus prevent reverse polarity from being
applied to the load and the VIGNP supply pin of the IC.
HIGH-SIDE GATE DRIVE CIRCUITS
Outputs GDH1, GDH2, and GDH3 provide the elevated
drive voltage to the high-side external MOSFETs (HS1, HS2,
and HS3; see
Figure 5
, page
13
). These gate drive outputs
supply the peak currents required to turn ON and hold ON the
high-side MOSFETs, as well as turn OFF the MOSFETs.
These gate drive circuits are powered from an internal charge
pump, and therefore compensate for voltage dropped across
the load that is reflected to the source-gate circuits of the
high-side MOSFETs.
LOW-SIDE GATE DRIVE CIRCUITS
Outputs GDL1, GDL2, and GDL3 provide the drive voltage
to the low-side external MOSFETs (LS1, LS2, and LS3; see
C
RES
=
Q
G
x V
GS
2 x V
GS
x V
SAG
- V
SAG
2
C
RES
=
(60 nC) x (14 V)
2 x (14 V) x (0.2 V) - (0.2)
2
= 0.15
μ
F
C
RES
20
< C
P1
= C
P2
<
10
C
RES
0.15
μ
F
20
= 0.075
μ
F, lower limit; and
10
0.15
μ
F
= .015
μ
F, upper lim
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MCZ33399EF | Local Interconnect Network (LIN) Physical Interface |
| MCZ33661EF | Local Area Network (LIN) Enhanced Physical Interface with Selectable Slew Rate |
| MCZ33689DEW | System Basis Chip with LIN Transceiver |
| MCZ33742EG | System Basis Chip (SBC) with Enhanced High-Speed CAN Transceiver |
| MCZ33790EG | Two-Channel Distributed System Interface (DSI) Physical Interface Device |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCZ33395EWR2 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 3 PHASE MOTOR DRIVER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類(lèi)型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| MCZ33399EF | 功能描述:輸入/輸出控制器接口集成電路 LIN INTERFACE RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| MCZ33399EFR2 | 功能描述:輸入/輸出控制器接口集成電路 LIN INTERFACE RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| MCZ33661EF | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC ENHANCED LIN INTERFACE RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| MCZ33661EF | 制造商:Freescale Semiconductor 功能描述:IC INTERFACE PHYSICAL LINE 8SOIC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。