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参数资料
| 型号： | ISL6526ACR |
| 厂商： | Intersil |
| 文件页数： | 6/15页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 16-QFN |
| 标准包装： | 60 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 645kHz |
| 占空比： | 100% |
| 电源电压： | 2.97 V ~ 3.63 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 16-VQFN 裸露焊盘 |
| 包装： | 管件 |
ISL6526, ISL6526A
Electrical Specifications
Recommended Operating Conditions, unless otherwise noted V CC = 3.3V ±5% and T A = +25°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
GATE DRIVERS
Upper Gate Source Current
Upper Gate Sink Current
Lower Gate Source Current
Lower Gate Sink Current
I UGATE-SRC V BOOT - V PHASE = 5V, V UGATE = 4V
I UGATE-SNK
I LGATE-SRC V VCC = 3.3V, V LGATE = 4V
I LGATE-SNK
-
-
-
-
-1
1
-1
2
-
-
-
-
A
A
A
A
PROTECTION/DISABLE
OCSET Current Source
Disable Threshold
I OCSET
V DISABLE
Commercial
Industrial
18
16
-
20
20
-
22
22
0.8
μA
μA
V
NOTE:
4. Limits should be considered typical and are not production tested.
Functional Pin Description
14 LD SOIC
TOP VIEW
GND
This pin represents the signal and power ground for the IC.
Tie this pin to the ground island/plane through the lowest
GND 1
LGATE 2
CPVOUT 3
CT1 4
CT2 5
OCSET 6
FB 7
14 UGATE
13 BOOT
12 PHASE
11 VCC
10 CPGND
9 ENABLE
8 COMP
16 LD 5X5 QFN
TOP VIEW
impedance connection available.
PHASE
Connect this pin to the upper MOSFET’s source. This pin is
used to monitor the voltage drop across the upper MOSFET
for overcurrent protection.
UGATE
Connect this pin to the upper MOSFET’s gate. This pin
provides the PWM-controlled gate drive for the upper
MOSFET. This pin is also monitored by the adaptive
shoot-through protection circuitry to determine when the
upper MOSFET has turned off.
BOOT
CPVOUT
CT1
CT2
1
2
3
16
15
14
13
12 PHASE
11 VCC
10 CPGND
This pin provides ground referenced bias voltage to the
upper MOSFET driver. A bootstrap circuit is used to create a
voltage suitable to drive a logic-level N-Channel MOSFET.
LGATE
Connect this pin to the lower MOSFET’s gate. This pin provides
OCSET
4
9
NC
the PWM-controlled gate drive for the lower MOSFET. This pin
5
6
7
8
is also monitored by the adaptive shoot-through protection
circuitry to determine when the lower MOSFET has turned off.
OCSET
Connect a resistor (R OCSET ) from this pin to the drain of the
VCC
This pin provides the bias supply for the ISL6526, ISL6526A.
Connect a well-decoupled 3.3V supply to this pin.
upper MOSFET (V IN ). R OCSET , an internal 20μA current
source (I OCSET ), and the upper MOSFET ON-resistance
(r DS(ON) ) set the converter overcurrent (OC) trip point
according Equation 1:
I PEAK = -------------------------------------------------
COMP and FB
COMP and FB are the available external pins of the error
amplifier. The FB pin is the inverting input of the internal
error amplifier and the COMP pin is the error amplifier
output. These pins are used to compensate the voltage
control feedback loop of the converter.
I OCSET xR OCSET
r DS ( ON )
An overcurrent trip cycles the soft-start function.
(EQ. 1)
6
FN9055.10
November 24, 2008
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6526ACR-T | 功能描述:IC REG CTRLR BUCK PWM VM 16-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| ISL6526AEVAL1 | 功能描述:EVALUATION BOARD 1 ISL6526A RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL6526AEVAL2 | 功能描述:EVALUATION BOARD 2 ISL6526A RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL6526AIB | 功能描述:IC REG CTRLR BUCK PWM VM 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
| ISL6526AIB-T | 功能描述:IC REG CTRLR BUCK PWM VM 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:4,000 系列:- PWM 型:电压模式 输出数:1 频率 - 最大:1.5MHz 占空比:66.7% 电源电压:4.75 V ~ 5.25 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 85°C 封装/外壳:40-VFQFN 裸露焊盘 包装:带卷 (TR) |
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