参数资料
| 型号： | ISL6617IRZ |
| 厂商： | Intersil |
| 文件页数： | 2/15页 |
| 文件大小： | 0K |
| 描述： | IC PWM DOUBLER MONITOR 10DFN |
| 标准包装： | 100 |
| 应用： | PWM Doubler |
| 电流 - 电源： | 6mA |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 供应商设备封装： | * |
| 包装： | * |
ISL6617
Functional Pin Descriptions
PIN # PIN SYMBOL
FUNCTION
1
2
3
4
5
6
ISENA+
ISENA-
PWMIN
ISENB+
ISENB-
PWMB
Output of the differential amplifier for Channel A. Connect a resistor on this pin to the negative rail of
the sensed voltage to set the current gain.
Input of the differential amplifier for Channel A. Typically, the positive rail of sensed voltage via DCR
sensing network connects to this node.
The PWM input signal triggers the J-K flip flop and alternates its input to channel A and B. Both channels
are effectively modulated. The PWM signal can enter three distinct states during operation, see
Operation section for further details. Connect this pin to the PWM output of the controller. The pin is
pulled to VCC when EN_PH_SYNC is low.
Output of the differential amplifier for Channel B. Connect a resistor on this pin to the negative rail of
the sensed voltage to set the current gain.
Input of the differential amplifier for Channel B. Typically, the positive rail of sensed voltage via DCR
sensing network connects to this node.
PWM output of Channel B with Tri-state feature.
7
EN_PH_SYNC Driver Enable and Mode Selection Input. See Enable and Mode Operation for more details.
8
9
10
11
IOUT
VCC
PWMA
GND
Current monitoring Output. It sources out the average current of both Channel A and B.
Connect this pin to a +5V bias supply. It supplies power to internal analog circuits. Place a high quality
low ESR ceramic capacitor from this pin to GND.
PWM output of Channel A with Tri-state feature.
Bias and reference ground. All signals are referenced to this node. Place a high quality low ESR ceramic
capacitor from this pin to VCC. Connect this pad to the power ground plane (GND) via thermally
enhanced connection.
Block Diagram
VCC
55k
PWMIN
ISENA-
48k
CONTROL
ISENA+
PWMA
CHANNEL A
EN_PH_SYNC
LOGIC
PWMB
GND
ISENB-
ISENB+
CHANNEL B
2
IOUT
CURRENT
BALANCE BLOCK
FN7564.0
February 4, 2010
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