参数资料
型号: MAX17007AGTI+T
厂商: Maxim Integrated Products
文件页数: 25/35页
文件大小: 0K
描述: IC CTRLR QPWM GRAPHICS 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: Quick-PWM™
应用: 电源
电流 - 电源: 1.7mA
电源电压: 4.5 V ~ 26 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(4x4)
包装: 带卷 (TR)
Dual and Combinable QPWM Graphics
Core Controllers for Notebook Computers
Additional load current can slow down the output volt-
age change during a positive REFIN1 voltage change,
and can speed up the output voltage change during a
negative REFIN1 voltage change.
Automatic Fault Blanking (SMPS1)
When the MAX17007/MAX17008 detect that the internal
target and REFIN1 are more than ±50mV (typ) apart,
the controller automatically blanks PGOOD1, blanks the
UVP protection, and sets the OVP threshold to max REF
+ 300mV. The blanking remains until 1) the internal tar-
get and REFIN1 are within ±30mV of each other, and 2)
an edge is detected on the error amplifier signifying
that the output is in regulation. This prevents the system
or internal fault protection from shutting down the con-
troller during transitions. Figure 11 shows the dynamic
REFIN transition ( SKIP = GND) and Figure 12 shows
the dynamic REFIN1 transition ( SKIP = REF).
DYNAMIC REFIN WINDOW
REFIN1
V OUT1
INTERNAL
PWM CONTROL
LX1
ACTUAL V OUT1
INTERNAL TARGET1
SKIP
NO PULSES: V OUT > V TARGET
PGOOD1
OVP1
BLANK HIGH-Z
SET TO REF + 300mV
BLANK HIGH-Z
TARGET1 + 300mV
Figure 11. Dynamic REFIN1 Transition ( SKIP = GND)
DYNAMIC REFIN WINDOW
REFIN1
V OUT1
ACTUAL V OUT1
50mV
INTERNAL TARGET1
INTERNAL
PWM CONTROL
PWM
SKIP
PWM
SKIP
LX1
PGOOD1
BLANK HIGH-Z
BLANK HIGH-Z
OVP1
SET TO REF +
300mV
TARGET1 + 300mV
TARGET1 + 300mV
Figure 12. Dynamic REFIN1 Transition ( SKIP = REF)
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